Articoli di riviste sul tema "Salsola australis"

The new combination Salsola strobilifera is proposed for the morphologically remarkable Australian taxon originally described by Bentham as S. kali var. strobilifera (basionym). The latter name is lectotypified on a specimen from K (barcode K000899590) that was collected in New South Wales by Beckler during the Burke and Wills Victoria Exploring Expedition of 1860–1861, and was studied by Bentham for his Flora Australiensis. Earlier taxonomic treatments and other studies of “strobiliferous” native Australian plants (having short ovoid to almost globular strobile-like terminal inflorescences which are easily broken off at maturity) are briefly discussed and summarized. Judging from available morphological and partly molecular evidence, there are at least two “strobiliferous” morphotypes in Australia, one probably more closely related to S. australis sensu stricto and another more similar to S. sabrinae (= S. tragus subsp. grandiflora). It is concluded that Salsola sensu stricto is represented in Australia and adjacent islands by several (four or five, probably more) rather distinct native taxa that should be better recognized as separate species. On the basis of their morphological distinctiveness, these taxa are comparable to many other currently recognized Eurasian ones. The presence of Eurasian alien species also cannot be excluded. The need for a comprehensive study of Australian taxa of Salsola is emphasized.

Salsola tragus sensu lato (Chenopodiaceae) is found throughout Western Australia and is considered to be a weed in both natural and agricultural ecosystems, although the current taxonomic status of this species is not clear. The taxonomic literature reports morphological variation within Australian populations of the weed, indicating that there may be genetically distinct ecotypes or unidentified subspecies present within the species. A genetic and cytological approach was used to detect variation between 22 populations of S. tragus sensu lato in the south-west of Western Australia. Out-groups used in this study included a population of S. tragus L. from the USA and Maireana brevifolia (R.Br.) Paul G.Wilson (Chenopodiaceae) from Lake Grace. Four genetically distinct groups were identified, which were not closely related to the S. tragus out-group (~60% similarity). Further, these groups and a S. australis R.Br. sample from the USA were all diploid (2n = 18), unlike the tetraploid (2n = 36) S. tragus. The predominant wheatbelt weed, group A, which was previously classified as S. tragus ssp. tragus L., was identified as S. australis. This species is probably native to Australia, given its arrival predated European invasion. Further research is required to clarify the taxonomic status of the other three possible taxa and determine their status in relation to S. australis.

Cultivation of salt-tolerant crops help to face to irreversible global salinization of freshwater and soils. In New-Caledonia, three halophytes are candidates for saline crops, Salsola australis R.Br., Suaeda maritima (L.) Dumort and Enchylaena tomentosa R.Br. Their success and quality depend yet on availabilities of salinity and essential nutrients in agrosystems. So, we investigated effects of three salinities, i.e., control moderate and high, and five nitrogen ratios, i.e., 100:0, 75:25, 50:50, 25:75 or 0:100 NO3−-N:NH4+-N ratio on their growth and functional value for fatty acids and antioxidants. Results show that the leaf fatty acid and antioxidant profiles of species, emphasize their good potential to become functional crop products, based on comparison with other functional plants, dietetic recommendation, or functional indices. However, their total phenolic compounds (TPC) content can be influenced by N-ratio (Suaeda maritima and Enchylaena tomentosa) and their antioxidant activity index (AAI) can be influenced by salinity (Suaeda maritima), N-ratio (Salsola australis) or both (Enchylaenatomentosa). Their quantitative and/or qualitative fatty acid profiles can also be influenced by salinity (Enchylaena tomentosa), N-ratio (Suaeda maritima), or both (Salsola australis). Regarding these variations, involving salt tolerance and nitrogen nutrition mechanisms, we recommend suitable treatments to maintain or optimize the growth and the functional quality of leaves in the three species.

In article the results of analysis conducted on bioecological features of Salsola species which are distributed in desert phytocoenosis of Mil plain of Kur-Aras lowland were given. Materials for research were plant herbaria which collected from researched area, as well as herbarium funds of Baku State University and Institute of Botany Azerbaijan National Academy of Sciences. Morphological study of the flower parts of Salsola species was conducted with Carl Zeiss Stereo Discovery V4 stereomicroscope. It was determined that in researched area 10 species (Salsola australis R. Br., S. tragus L., S. paulsenii Litv., S. soda L., S. nitraria Pall., S. incanescens C. A. Mey., S. dendroides Pall., S. ericoides Bieb., S. nodulosa (Moq.) Iljin, S. foliosa (L.) Schrad.) of Salsola genus are distributed. Their morphology, ecology, systematical position, as well as economic significance were analyzed. It was also found that an anthropogenic impact in this area leads to desertification of landscapes.

Of all reported distributions of weeds of 19 species belonging to 15 genera of 10 families in the wheat planted fields Tsagaannuur soum of Selenge aimag, annuals account for 57.9%, biennials for 10.5% and perennials for 31.5%. The use of herbicide Trimexa, Cliomex 300, Cliodmex plus and Trimexa + Cliodimex plus express for controlling both grassy and dicotyledonous weeds has Agropyron repens L, Panicium miliaceum L, Eragrostis minor Host, Amaranthus retroflexus L, Artemisia sieversiana Willd, Cannabis ruderalis Janisch, Chenopodium album L, Chenopodium aristatum L, Chenopodium acuminatum Willd, Convolvulus arvensis L, Convolvulus gortschakovii Schrenk, Erodium stephanianum Willd, Polygonum convolvulus L, Geranium siviricum L, Salsola collina (Pall), Salsola australis R.Br, Noneo pulla L, Malva mohileviensis Downer, Vicia cracca L. 84.4-90.9% technical effectiveness.

During an ecological expertise the vegetation of Tuzla Spit and Tuzla Island, located in the middle part of the Kerch Strait (Fig. 1), was studied. This area is unique in terms of biological diversity and a presence of rare species (Ermolaeva et al., 2018). The study is based on 150 geobotanical relevés. Field data, topographic maps, and high-resolution satellite images were used in the vegetation mapping. The total area of the study is 383 hectares. There are the following hierarchical levels in the legend to the vegetation map: types of vegetation and classes of associations. A mapping unit is an association described according to the Braun-Blanquet system (Braun-Blanquet, 1964). The highest divisions of the legend are the types of vegetation: aquatic, coastal-aquatic, halophytic, psammophytic, steppe; they are given according to the ecological-phytocoenotic classification. Within the types of vegetation, classes of associations are given according to the ecological-floristic classification. 26 main numbers of the legend display the vegetation cover on the map. Geobotanical map reflects the state of vegetation in 2015 (Fig. 2). The vegetation of the island is heterogeneous. Plant communities as narrow stripes replace each other depending on the degree of moisture, salinity and orography. The sea currents have a great influence on the vegetation. In the southern part of the Taman Bay, suspension flows are directed from the South to the North and round the island, which leads to the “washing-up” of the southeastern part of the island represented by shallow waters and estuaries. It is occupied mainly by halophytic vegetation, the main dominants of plant communities are Juncus maritimus, Phragmites australis, Puccinellia distans, Bassia hirsuta, Salicornia pe­rennans, S. prostrata, Suaeda salsa, Elaeagnus angustifolia, Elytrigia elongata, Tripolium vulgare. The northwestern part of the strait is occupied by the area of jet streams of suspensions coming from the North to the South from the Sea of Azov. This caused the accumulation of sand-shell material in the northern and northwestern parts of the island forming raised areas co­vered by psammophytic and steppe communities. The main dominant species here are Crambe maritima var. pontica, Cakile euxina, Eryngium maritimum, Lactuca tatarica, Salsola tragus, Leymus sabulosus, Artemisia arenaria, Gypsophila perfoliata. As a result of the transport crossing construction, the vegetation cover was heavily transformed. The vegetation map of Tuzla Spit and Island for 2019 shows the changes that have occurred — the drainage of the territory and the reduction of the vegetated area (Fig. 3). Distribution of weed species, in particular Ambrosia artemisiifolia, is noted. The remained vegetation in the southern part of the Tuzla Spit and the southern part of the Tuzla Island has a great nature conservation value; there are unique plant communities and rare plant species listed in the Red books of different ranks (Red..., 2007, 2008, 2015): Cakile euxina, Crambe maritime, Glaucium flavum, Euphorbia paralias, E. peplis, Eryngium mari­timum, Astrodaucus littoralis, Asparagus maritimus, Centaurea arenaria, Argusia sibirica, Astragalus varius, Verbascum pinnatifidum, Leymus racemosus subsp. sabulosus, Secale sylvestre. There is an obvious need to organize a specially protected natural area in these areas.

The core of this research was to study the amount, diversity, richness, evenness and dominance of soil Actinomycetes at lakeside of swamping wetland. In this study, Amount of Actinomycetes were determined through plate counting method, which was in Phragmites australis, Suaeda salsa and Nitraria tangutorum growing soil at the upstream, midstream and downstream of Wuliangsuhai. Community structure of Actinomycetes were analyzed on the basis of it‘s diversity index (H), evenness index (J), richness index (R) and dominance index (D). The results showed that, the diversity, richness and dominance of Actinomycetes were all affected by the types of plants, and showed significant difference among them. However, there was no significant difference for evenness. What’s more, both the order of diversity and richness in different plants growing soil were: Nitraria tangutorum> Suaeda salsa >Phragmites australis. And the order of dominance was: Suaeda salsa >Phragmites australis >Nitraria tangutorum. Dominant bacteria in Phragmites australis was Flavus, accounting for 85%, dominant bacteria in Nitraria tangutorum were Albosporus and Flavus, which accounted for 54.8% and 26%, and dominant bacteria in Suaeda salsa were Albosporus,Albosporus and Flavus, accounted for 26.7%, 23.5%. As the succession from Phragmites australis swamp to Suaeda salsa Saline meadow, and then to Nitraria tangutorum desert in Wuliangsuhai, the composition and structure of Actinomycetes there are changing at the same time.

Background The Yancheng coastal natural wetlands (YCNR) are well-preserved silty tidal flat wetlands in China. Due to the severe invasion of Spartina alterniflora, the native ecosystem has undergone great changes. The successful invasion of S. alterniflora reduced the biodiversity of the YCNR, changed the structure and function of the local ecosystem, and eventually led to the degradation of the ecosystem and the loss of ecosystem function and service. Fully understanding the impact of an alien species invasion on YCNR succession is an important prerequisite for protecting and restoring the wetlands. Methods In this study, remote sensing, GIS technology, and a cellular-automaton Markov model were used to simulate the natural succession process of native ecosystems without being affected by alien species. By comparing the landscape of the YCNR with the model simulation results, we gained a better understanding of how alien species affect native landscape-scale ecosystems. Results During the natural succession of the coastal native wetland ecosystem in the YCNR, the pioneer species S. alterniflora occupied the mudflats and expanded seaward. The whole area expanded and moved seaward with an average annual movement of 58.23 m. Phragmites australis seemed to dominate the competition with S. salsa communities, and the area gradually expanded with an average annual movement of 39.89 m. The invasion of S. alterniflora changed the native ecosystem’s spatial succession process, causing the S. salsa ecosystem to be stressed by ecosystems on the side of the sea (S. alterniflora) and that of land (P. australis). The area of the seaward-expanding P. australis ecosystem has been declining. Under a reasonable protected area policy, human activities have enhanced the succession rate of the P. australis ecosystem and have had a small impact on the ecological spatial succession of S. salsa and S. alterniflora.

The effects of Spartina alterniflora invasion on macrobenthos have long been of concern; however, there is currently no unified conclusion regarding these effects. Most studies on crabs focus on one species or limited habitat types, and assessments of the community-level effects of S. alterniflora invasion considering multiple species and habitat types have rarely been conducted. In this study, we sampled crabs along a habitat gradient from the shoreline to inland areas on the Yellow Sea coast, including the mudflat, S. alterniflora marsh, Suaeda salsa marsh and Phragmites australis marsh. A total of 10 crab species were found among all habitats, with five species in the mudflat, six species in S. alterniflora marsh, seven species in S. salsa marsh and four species in P. australis marsh. The Shannon index values for the crab communities were similar between S. alterniflora marsh and S. salsa marsh, and these values were significantly higher than those for the mudflat and P. australis marsh. However, the total biomass of crabs was highest in the mudflat, and Metaplax longipes, Philyra pisum and Macrophthalmus dilatatus exclusively preferred the mudflat. The analysis of principal components and similarities showed that the crab community structure in S. alterniflora marsh was most similar to that in S. salsa marsh, while the crab community structure in the mudflat was most different from that in the other habitat types. Our results demonstrate that the distribution of crabs varies across a habitat gradient after S. alterniflora invasion and that the crab community in S. alterniflora marsh is slightly different from that associated with the local vegetation but shows a large difference from that in the mudflat. This study indicates that some crab species may have adapted to habitat containing alien S. alterniflora, while other crab species reject this new marsh type. The effects of the distribution of crabs after S. alterniflora invasion on the regional ecosystem need further study in the future.

Nomenclatural and taxonomical considerations on Kali, a controversial genus recently segregated from the polyphyletic Salsola s. lat. (Chenopodiaceae), are provided. The Kali group includes annual plants with leaves ending in a spine and lacking hypodermis, having also a cortex alternate to longitudinal chlorenchymatous striae. The species belonging to this genus mainly have a paleotemperate distribution (Europe, Asia and North Africa), occurring as aliens in North America, Australia and South Africa. A new species collected on Mt. Etna (Sicily), and closely related to K. australe, is described and illustrated as K. basalticum Its morphological and molecular features, karyology (2n=54), ecology, distribution, phylogeny and conservation status are examined. In addition, a list of the currently known species of Kali is provided, with some new combinations: Kali nepalense (Grubov) comb. nov., Kali pellucidum (Litvinov) comb. nov., Kali sinkiangense (A.J. Li) comb. nov., Kali gobicolum (Iljin) comb. nov., and Kali ryanii (G.F. Hrusa & Gaskin) comb. nov.

Dietary preferences of the greater stick-nest rat (Leporillus conditor) and the European rabbit (Oryctolagus cuniculus) were compared using cafeteria trials and direct observations. Despite overlap, these species exhibited differences in dietary preference. L. conditor showed a strong preference for chenopod shrub species and other plant species with a high water content including Gunniopsis quadrifida and Calandrinia remota. L. conditor also preferred female bladder saltbush (Atriplex vesicaria) foliage to male. O. cuniculus ate a greater selection of plant species in most trials with their most preferred species including mulga (Acacia aneura), Salsola kali and Calandrinia remota. Both O. cuniculus and L. conditor preferred seedlings of perennial species to adult cuttings. L. conditor has recently been re-introduced to a 14 km� O. cuniculus, cat (Felis catus) and red fox (Vulpes vulpes) proof exclosure in the arid zone of South Australia. The re-introduction of this herbivore and the removal of exotic herbivores may change the vegetation structure and composition within the exclosure by restricting growth of some succulent chenopod species but allowing the regeneration of tall shrub species such as Acacia aneura which are usually limited by O. cuniculus grazing.

Tributes to Professor Andrzej Kopcewicz - Agnieszka Salska New Media Effects on Traditional News Sources: A Review of the State of American Newspapers - Richard Profozich Review of The Body, ed. by Ilona Dobosiewicz and Jacek Gutorow - Grzegorz Kość “Taste good iny?”: Images of and from Australian Indigenous Literature - Jared Thomas Speaks with Teresa Podemska-Abt Engaging the “Forbidden Texts” of Philosophy - Pamela Sue Anderson Talks to Alison Jasper

Screening of available local halophytes for salinity tolerance is of considerable economic value for the utilization of heavy salt-affected lands in coastal tidal-flat areas and other saline areas. In this study, the germination and seedling pot experiments on salt tolerance of eight halophytic species from Yellow River Delta, China, at seven NaCl concentrations (0, 50, 100, 150, 200, 250, and 300 mM), were conducted at both growth stages. Results showed that germination rate and germination index decreased with an increase in NaCl concentration. The higher germination rates were obtained from Tamarix chinensis and Suaeda salsa seeds exposed to 0~200 mM NaCl. At the seedling stage, the salt tolerances of eight halophytes were also different from each other. Tamarix chinensis had significantly greater fresh biomass and plant height in relative terms than the others in all salt treatments. The order of the relative growth yield in seedling was Tamarix chinensis > Suaeda salsa > Salicornia europaea > Limonium bicolor > Atriplex isatidea > Apocynum venetum > Phragmites australis > Sesbania cannabina. The comprehensive analysis showed that Tamarix chinensis had the highest tolerance to salt, followed by Suaeda salsa, and the salt tolerance of Sesbania cannabina was the lowest.

The plants of the Simpson Desert are adapted to one of the driest regions on the Australian continent and grow in generally nutrient-poor soils. Surveys were conducted at three sites in the southern Simpson Desert to determine the arbuscular mycorrhizal (AM) status of 52 species from 28 families of annual and perennial plants. Roots from all plants were examined for the presence of internal and external hyphae, vesicles, arbuscules and coils to determine presence and extent of mycorrhizal colonisation. Of the plant species surveyed, 38 (73%) had formed mycorrhizal associations. The AM status of 47 species is reported for the first time, including of members of the Frankeniaceae and Myoporaceae families. No correlations were found between site (dune or interdune) or life form and the number of species forming AM associations. Two species in the normally non-mycorrhizal Chenopodiaceae, Salsola kali L. and Sclerolaena diacantha (Nees.) Benth. had mycorrhiza. Arbuscules and/or vesicles were observed in the roots of all mycorrhizal plants except three species, Solanum ellipticum R.Br., Gnephosis eriocarpa (F.Muell.) Benth. and Eremophila longifolia (R.Br.) F.Muell., in which only coils of hyphae were observed.

Spatial distribution characteristics of available phosphorus (AP) and total phosphorus (TP) in wetland soils withPhragmites australis,Suaeda salsaandTamarix chinnensiswere investigated and their influencing factors was also indentified using principal correspondence analysis for ordination in the Yellow River Delta of China. Our results showed that TP and AP contents in both sites withPhragmites australisandSuaeda salsa, and the horizontal distributions of AP content in three sites exhibited similar distribution characteristics to that of AP:TP ratios. Additionally, soil properties such as soil moisture, salinity, total nitrogen, total carbon and pH values were the important influencing factors of higher spatial variability of AP and TP.

Objective: To determine the impact of a peer-led, school-based programme (Students As LifeStyle Activists; SALSA) on energy balance–related behaviours (EBRBs) in Grade 8 students, and the cost of implementing the programme. Design: Pre–post test Setting: High schools in New South Wales, Australia. Methods: Grade 10 students (15- to 16-year-olds) were trained by university students to deliver four lessons on healthy eating and physical activity to Grade 8 students (13- to 14-year-olds). Students completed an online questionnaire pre–post lessons on EBRBs and intentions to change EBRBs over the next month. Items included fruit, vegetable and sugar-sweetened beverage (SSB) intake, frequency of eating breakfast, participation in moderate-to-vigorous physical activity (MVPA) and school-day recreational screen-time. Pre–post changes were analysed using generalised estimating equations, adjusted for clustering. Standard methods were used to estimate implementation costs. Results: In total, 2,056 Grade 8 students from 23 high schools participated. Significant changes included 5.2% increase in eating >2 fruit serves/day ( p < .001), 2.5% increase in eating >4 vegetable serves/day ( p < .05), a 4.3% increase in drinking <1 cup/day of SSB ( p < .001) but limiting screen-time <2 hours/day decreased by 4.4% ( p < .001). There were significant improvements in students’ intentions to change EBRBs over the next month, with the exception of MVPA. The average actual cost of implementing the SALSA programme in 2014–2015 was AU$1,388 (US$958) per school and AU$9.97 (US$6.88) per student. Conclusion: The SALSA peer education programme had a positive impact on most of the dietary EBRBs examined. The cost evaluation showed that it is a relatively low-cost programme to implement.

O objetivo da pesquisa foi analisar o saber etnobotânico dos agricultores/as familiares associado à plantas medicinais no município de Rolim de Moura/RO. Foram coletadas informações de 30 produtores selecionados pela metodologia bola de neve. Utilizou-se o Fator de Consenso do Informante (FCI) e foram classificados os nomes das espécies por meio das famílias botânicas, suas indicações de acordo com a Classificação Estatística Internacional de Doenças e Problemas Relacionados à Saúde (CID-10), Nível de Fidelidade (FL) e Importância Relativa (IR). Foram citadas 136 espécies de plantas medicinais, distribuídas em 56 famílias. As plantas tiveram 901 citações e destas foi possível a identificação de 134 espécies, destacando-se as seguintes famílias: Asteraceae (20 espécies), Lamiaceae (17 espécies) e Fabaceae (7 espécies). As de maior número de citação foram Curcuma Longa L.(Açafrão), Mentha sp. (Hortelã), Cyimbopogon citratus Stapf. (Capim Cidreira) e Plectranthus barbatus Andrews (Boldo). Em relação ao FCI, as categorias com maiores valores foram: transtornos do sistema respiratório (FCI=0,70) e transtornos do sistema digestório (FCI=0,69). As que apresentaram valores de IR>1 foram: Curcuma Longa L. (Açafrão – IR=2,0) e Plantago major L.(Tanchagem – IR=1,64). Aos resultados de FL, destacaram-se as seguintes espécies: Pereskia grandifolia (Ora-pro-nobis – FL=80%), Sambucus australis, Malpighia glabra Linn, Phyllanthus niruri L., Petroselium crispum (Mill.) A.W.Hill,(Sabugueiro, Acerola, Quebra-pedra e Salsa – FL=66,67%) respectivamente. As folhas foram as partes da planta mais utilizadas (64,2%), sendo a infusão/chá (67,5%) o procedimento mais comum usado para preparar remédios caseiros. Conclui-se que este trabalho possibilitou maior compreensão acerca da origem dos saberes e das práticas sobre o uso terapêutico das plantas medicinais que além da constatação do uso destas plantas, elas assumem grande valor na vida destes produtores rurais.

A preoccupation with hybridity is natural in a period like ours marked by increasingly frequent and intense cultural encounters. Globalization encourages hybridization. However we react to it, the globalizing trend is impossible to miss, from curry and chips – recently voted the favourite dish in Britain – to Thai saunas, Zen Judaism, Nigerian Kung Fu or ‘Bollywood’ films. The process is particularly obvious in the domain of music, in the case of such hybrid forms and genres as jazz, reggae, salsa or, more recently, Afro-Celtic rock. New technology (including, appropriately enough, the ‘mixer’), has obviously facilitated this kind of hybridization.It is no wonder then that a group of theorists of hybridity have made their appearance, themselves often of double or mixed cultural identity. Homi Bhabha for instance, is an Indian who has taught in England and is now in the USA. Stuart Hall, who was born in Jamaica of mixed parentage, has lived most of his life in England and describes himself as ‘a mongrel culturally, the absolute cultural hybrid’. Ien Ang describes herself as ‘an ethnic Chinese, Indonesian-born and European-educated academic who now lives and works in Australia’. The late Edward Said was a Palestinian who grew up in Egypt, taught in the USA and described himself as ‘out of place’ wherever he was located.The work of these and other theorists has attracted growing interest in a number of disciplines, from anthropology to literature, from geography to art history, and from musicology to religious studies. In this issue, the contributions discuss Africa, Japan and the Americas as well as Europe and range from the 16th century to the 21st, from religion to architecture and from clothing to the cinema.

Abstract Background Besides physical activity as a target for dementia prevention, sedentary behaviour is hypothesized to be a potential target in its own right. The rising number of persons with dementia and lack of any effective treatment highlight the urgency to better understand these modifiable risk factors. Therefore, we aimed to investigate whether higher levels of sedentary behaviour are associated with reduced global cognitive functioning and slower cognitive decline in older persons without dementia. Methods We used five population cohorts from Greece, Australia, USA, Japan, and Singapore (HELIAD, PATH, SALSA, SGS, and SLAS2) from the Cohort Studies of Memory in an International Consortium. In a coordinated analysis, we assessed the relationship between sedentary behaviour and global cognitive function with the use of linear mixed growth model analysis (mean follow-up range of 2.0–8.1 years). Results Baseline datasets combined 10,450 older adults without dementia with a mean age range between cohorts of 66.7–75.1 years. After adjusting for multiple covariates, no cross-sectional association between sedentary behaviour and cognition was found in four studies. One association was detected where more sedentary behaviour was cross-sectionally linked to higher cognition levels (SLAS2, B = 0.118 (0.075; 0.160), P < 0.001). Longitudinally, there were no associations between baseline sedentary behaviour and cognitive decline (P > 0.05). Conclusions Overall, these results do not suggest an association between total sedentary time and lower global cognition in older persons without dementia at baseline or over time. We hypothesize that specific types of sedentary behaviour may differentially influence cognition which should be investigated further. For now, it is, however, too early to establish undifferentiated sedentary time as a potential effective target for minimizing cognitive decline in older adults without dementia.

Soil is one of the principal substrates of human life and can serve as a reservoir of water and nutrients. Humic substances, indicators of soil fertility, are dominant in soil organic matter. However, soil degradation has been occurring all over the world, usually by soil salinization. Sustainable soil productivity has become an urgent problem to be solved. In this study, fluorescence excitation-emission matrices integrated with parallel factor analysis (PARAFAC) and canonical correlation analysis (CCA) were applied to characterize the components of fulvic acid (FA) and humic acid (HA) substances extracted from soils from the Liaohe River Delta, China. Along the saline gradient, soil samples with four disparate depths were gathered from four aboriginal halophyte communities, i.e., the Suaeda salsa Community (SSC), Chenopodium album Community (CAC), Phragmites australis Community (PAC), and Artemisia selengensis Community (ASC). Six components (C1 to C6) were identified in the FA and HA substances. The FA dominant fractions accounted for an average of 45.81% of the samples, whereas the HA dominant fractions accounted for an average of 42.72%. Mature levels of the HA fractions were higher than those of the FA fractions, so was the condensation degree, microbial activity, and humification degree of the FA fractions. C1 was associated with the ultraviolet FA, C2 was referred to as visible FA, C3 and C4 were relative to ultraviolet HA, C5 represented microbial humic-like substances (MH), and C6 referred to visible HA. C1, C2, C5 and C6 were latent factors of the FA fractions, determined using the CCA method and could possibly be used to differentiate among the SSC, CAC, PAC and ASC samples. C3, C4, C6 and C5 were latent factors of the HA fractions, which might be able to distinguish the ASC samples from the SSC, CAC and PAC samples. Fluorescence spectroscopy combined with the PARAFAC and CCA is a practical technique that is applied to assess the humic substance content of salinized soils.

Abstract. Many factors are known to influence greenhouse gas emissions from coastal wetlands, but it is still unclear which factors are most important under field conditions when they are all acting simultaneously. The objective of this study was to assess the effects of water table, salinity, soil temperature and vegetation on CH4 emissions and ecosystem respiration (Reco) from five coastal wetlands in the Liaohe Delta, Northeast China: two Phragmites australis (common reed) wetlands, two Suaeda salsa (sea blite) marshes and a rice (Oryza sativa) paddy. Throughout the growing season, the Suaeda wetlands were net CH4 sinks whereas the Phragmites wetlands and the rice paddy were net CH4 sources emitting 1.2–6.1 g CH4 m−2 yr−1. The Phragmites wetlands emitted the most CH4 per unit area and the most CH4 relative to CO2. The main controlling factors for the CH4 emissions were water table, temperature, soil organic carbon and salinity. The CH4 emission was accelerated at high and constant (or managed) water tables and decreased at water tables below the soil surface. High temperatures enhanced CH4 emissions, and emission rates were consistently low (< 1 mg CH4 m−2 h−1) at soil temperatures < 18 °C. At salinity levels > 18 ppt, the CH4 emission rates were always low (< 1 mg CH4 m−2 h−1) probably because methanogens were out-competed by sulphate-reducing bacteria. Saline Phragmites wetlands can, however, emit significant amounts of CH4 as CH4 produced in deep soil layers are transported through the air-space tissue of the plants to the atmosphere. The CH4 emission from coastal wetlands can be reduced by creating fluctuating water tables, including water tables below the soil surface, as well as by occasional flooding by high-salinity water. The effects of water management schemes on the biological communities in the wetlands must, however, be carefully studied prior to the management in order to avoid undesirable effects on the wetland communities.

Abstract Aims Salt marsh vegetation is an important contributor of dissolved organic matter (DOM) to coastal waters. The dynamics of DOM leaching from different marsh plants, however, have not been well studied or compared. Methods In this study, we conducted laboratory experiments to investigate the processes of DOM leaching from three common marsh plants (Phragmites australis, Suaeda salsa and Aeluropus littoralis) collected from the Yellow River Delta (YRD) salt marsh in October 2016. The YRD is one of the largest and most well-protected coastal ecosystems on the east coast of China. Important Findings We found that the plant leaves released DOM at much higher concentrations than the plant roots or stems, as measured by the dissolved organic carbon (DOC) and dissolved nitrogen (DN). On average, 15% of the biomass C and 30% of the biomass N were released from the plant leaves as DOC and DN during the 27-day incubation period. The DOM released from the plants was very labile, and 92.4%–98.1% of the DOC and 88.0%–94.6% of the DN released from the plants were consumed by bacteria during the 27-day incubation period. The fluorescence characteristics of the plant-released DOM indicated that chromophoric dissolved organic matter was a major fraction of the DOM and that protein-like components were the primary organic fractions released from the plants. Bacterial degradation altered both the fluorescence properties and the chemical composition of the DOM. The results of the laboratory experiments were well supported by the field investigation, which indicated that a large amount of DOM was outwelled from the YRD salt marshes in late autumn. Our study suggests that the DOM released from the biomass of salt marsh plants provides an important source of both DOC and DN for marsh and coastal waters. The highly labile DOC and DN provide essential food sources to support microbial communities in the YRD salt marsh and adjacent coastal waters.

Abstract. Many factors are known to influence greenhouse gas emissions from coastal wetlands, but it is still unclear which factors are most important under field conditions when they are all acting simultaneously. The objective of this study was to assess the effects of water table, salinity, soil temperature and vegetation on CH4 emissions and ecosystem respiration (Reco) from five coastal wetlands in the Liaohe Delta, northeast China: two Phragmites australis (common reed) wetlands, two Suaeda salsa (sea blite) marshes and a rice (Oryza sativa) paddy. Throughout the growing season, the Suaeda wetlands were net CH4 sinks whereas the Phragmites wetlands and the rice paddy were net CH4 sources emitting 1.2–6.1 g CH4 m−2 y−1. The Phragmites wetlands emitted the most CH4 per unit area and the most CH4 relative to CO2. The main controlling factors for the CH4 emissions were water table, temperature and salinity. The CH4 emission was accelerated at high and constant (or managed) water tables and decreased at water tables below the soil surface. High temperatures enhanced CH4 emissions, and emission rates were consistently low (< 1 mg CH4 m−2 h) at soil temperatures <18 °C. At salinity levels > 18 ppt, the CH4 emission rates were always low (< 1 mg CH4 m−2 h−1) probably because methanogens were outcompeted by sulphate reducing bacteria. Saline Phragmites wetlands can, however, emit significant amounts of CH4 as CH4 produced in deep soil layers are transported through the air-space tissue of the plants to the atmosphere. The CH4 emission from coastal wetlands can be reduced by creating fluctuating water tables, including water tables below the soil surface, as well as by occasional flooding by high-salinity water. The effects of water management schemes on the biological communities in the wetlands must, however, be carefully studied prior to the management in order to avoid undesirable effects on the wetland communities.

Abstract Intrachromosomal amplification of chromosome 21 (iAMP21) defines a distinct cytogenetic subgroup of 2% childhood acute lymphoblastic leukaemia (ALL). iAMP21-ALL patients have precursor B-cell ALL, are older (median age 9 years), generally present with low white cell counts and have an inferior outcome when treated with standard therapy. Stratification to high risk treatment arms has significantly reduced their relapse risk, thus accurate diagnosis is essential. We have identified iAMP21 as a complex structure of one copy of chromosome 21, comprising multiple regions of gain, amplification, inversion and deletion, initiated through breakage-fusion-bridge cycles and chromothripsis. Currently, fluorescence in situ hybridisation (FISH), using probes directed to RUNX1, is the most reliable and convenient detection method, in which four or more copies of RUNX1 on a single abnormal chromosome 21 defines iAMP21. From our examination of several hundred cases of iAMP21-ALL, we have noted that, in the absence of metaphase FISH and/or in cases with an unusual cytogenetic presentation, reliance on FISH alone for accurate detection may be problematic. Among a collection of 210 patients with iAMP21-ALL, we performed SNP6.0 and Multiplex Ligation-dependent Probe Amplification (MLPA) using the SALSA MLPA kit P327 iAMP21-ERG (MRC Holland) on 57 and 45 patients, respectively. Although chromosome 21 structure is highly variable between patients, a characteristic copy number profile emerged from the SNP6.0 data (Figure 1). In common, all cases were amplified across a 5.1Mb region, between 32,813,553 and 37,941,425bp that includes RUNX1 and 46 other known protein-coding genes. Asub-telomeric deletion occurred in 88% patients. We propose that this distinctive chromosome 21 copy number profile is used in addition to FISH for the definitive diagnosis of iAMP21-ALL in problematic cases. Support for this approach is provided by results from 5 patients from the Children's Oncology Group (North America, Australia and New Zealand) and ALL2003 (UK) treatment trials who met the iAMP21 FISH criteria but had atypical karyotypes or an unusual distribution of the additional RUNX1 signals that made confident diagnosis challenging. Clinical and cytogenetic data were collected and SNP6.0 and MLPA were performed to clarify the genomic alterations present in these cases. In patient #1, although five RUNX1 signals were observed per cell, two normal copies of chromosome 21 (each with one RUNX1 signal) were present with only three signals located to the abnormal chromosome 21. In patient #2, the additional signals were distributed between 2 different abnormal copies of chromosome 21. Metaphase FISH of patient #3 indicated that the RUNX1 signals were distributed between one normal copy of chromosome 21 and four small chromosomes, which were identified to originate from chromosome 21 by chromosome painting with a chromosome 21 specific probe (wcp21). In a further 2 cases (patients #4 and #5) the signals were too tightly clustered for the number to be discerned. In these 5 cases the characteristic SNP6.0 profile definitively confirmed the suspected diagnosis of iAMP21-ALL (Figure 2). Our previous SNP6.0 data have shown that the copy number profile of the iAMP21 chromosome remains stable between diagnosis and relapse, as well as in serial xenografts successfully transplanted with iAMP21-ALL cells over several generations of mice. However, while FISH analysis of patient #6 at diagnosis and relapse showed the same signal pattern at both time points, there was a change in the karyotype, involving translocation of part of the iAMP21 chromosome onto chromosome 11 at relapse. These observations indicate that the iAMP21 chromosome may become fragmented and distributed throughout the genome without changing its genomic profile. Collectively these observations indicate that the amplified segments resulting from the formation of iAMP21 chromosomes, with typical copy number profiles, can be distributed throughout the genome, either by translocation or fragmentation. Thus FISH together with chromosome 21 copy number profiling provide more accurate diagnosis of iAMP21-ALL than cytogenetics, which may be misleading. For laboratories with no access to SNP6.0 or other copy number arrays, we have shown that MLPA, with a kit specifically designed to detect chromosome 21 copy number changes, provides a reliable alternative (Figure 3). Disclosures No relevant conflicts of interest to declare.

Abstract A correlation between allopolyploidization and increased fitness is an explanation for the importance of allopolyploidy throughout evolution, specifically plant evolution. Although many authors have suggested correlation between allopolyploidy and increased fitness, common garden comparisons testing hypotheses about fitness shifts associated with allopolyploidy are lacking. In this study, we test the theory that allopolyploidy is associated with increased fitness in the newly formed allopolyploid weed Salsola ryanii. We conducted a common garden comparison over 2 years to determine how different fitness correlates (plant volume, plant mass and estimated seed number) of the newly formed allopolyploid species S. ryanii compares to its progenitors (S. tragus and S. australis) at a site within the range of all the newly formed allopolyploid and both of its progenitors. We document an increase in above-ground plant mass and above-ground volume in the newly formed allopolyploid compared to its progenitors. Plant mass and volume of the newly formed allopolyploid relative to its progenitors was dependent on year. The results of this study support the hypothesis that allopolyploidization is associated with increased growth, which is consistent with predictions that allopolyploid lineages experience vigour due to fixed heterozygosity.

Protected areas globally are threatened by the potential negative impacts that invasive alien plants pose, and Camdeboo National Park (CNP), South Africa, is no exception. Alien plants have been recorded in the CNP since 1981, before it was proclaimed a national park by South African National Parks in 2005. This is the first publication of a list of alien plants in and around the CNP. Distribution maps of some of the first recorded alien plant species are also presented and discussed. To date, 39 species of alien plants have been recorded, of which 13 are invasive and one is a transformer weed. The majority of alien plant species in the park are herbaceous (39%) and succulent (24%) species. The most widespread alien plant species in the CNP are Atriplex inflata (= A. lindleyi subsp. inflata), Salsola tragus (= S. australis) and cacti species, especially Opuntia ficus-indica. Eradication and control measures that have been used for specific problematic alien plant species are described. Conservation implications: This article represents the first step in managing invasive alien plants and includes the collation of a species list and basic information on their distribution in and around the protected area. This is important for enabling effective monitoring of both new introductions and the distribution of species already present. We present the first species list and distribution information for Camdeboo National Park.

Abstract A description is provided for Leveillula cylindrospora. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Powdery mildew of members of the Chenopodiaceae. Mycelium and ascomata form white, then dirty-grey layers on damaged green parts of the host. The fungus is potentially dangerous for some cultivated plants, for example, beet. Records from Italy and Corsica identified as Leveillula taurica s.l. on Beta maritima (Amano, 1986) probably belong in L. cylindrospora. HOSTS: Atriplex halimus, A. sphaeromorpha, A. tatarica, A. turcomanica, Ceratoides fruticulosa, C. papposa, Chenopodium album, C. ambrosioides, C. anthelminticum, C. murale, C. rubrum, Corispermum hyssopifolium, Kochia prostrata, K. scoparia, K. sieversiana, Noaea mucronata, Salsola arbuscula, S. australis (incl. S. iberica & S. ruthenica), S. canescens, S. kali, S. laricifolia, S. paletzkiana, S. richteri, S. soda, S. tamamschjanae (Chenopodiaceae). [Type host - Ceratoides papposa (Eurotia ceratoides)] GEOGRAPHICAL DISTRIBUTION: Africa: Canary Islands, Morocco. Asia (temperate areas only): Azerbaijan, Armenia, China, Republic of Georgia, Iran, Israel, Kazakhstan, Kirghizstan, Korea, Lebanon, Pakistan, Russia (north Caucasus, south Siberia), Tadzhikistan, Turkey, Turkmenistan, Uzbekistan. Europe: France, Italy, Portugal, Rumania, Russia (southeastern areas of European part, south Urals), Spain, Turkey (European part), Ukraine (southern). TRANSMISSION: By wind-dispersed conidia. The rôle of ascospores in disease transmission is unknown, although it has been supposed that they can cause the initial stage of the disease, because ascomata containing asci and ascospores have been observed after winter (Gaponenko et al., 1983, p. 177).

In early 1888, Miss Margaret Pearson arrived in Melbourne under engagement to the Working Men’s College there to give cookery lessons to young women. The College committee had applied to the National School of Cookery in London—an establishment effusively praised in the colonial press—for a suitable culinary educator, and Pearson, a graduate of that institute, was dispatched. After six months or so spent educating her antipodean pupils she published a cookbook, Cookery Recipes For The People, which she described in the preface as a handbook of “plain wholesome cookery” (Pearson 3). The book ran to three editions and sold more than 13,000 copies. A decade later, Hanna Maclurcan, co-proprietor of the popular Queen’s Hotel in Townsville, published Mrs Maclurcan’s Cookery Book: A Collection of Practical Recipes, Specially Suitable for Australia. A review of this work in the Brisbane Courier described it, positively, as a book of “good plain cooking”. Maclurcan had gained some renown as a cook after the Governor of Queensland, Lord Lamington, publicly praised the meals he had eaten at the Queen’s as “exceptionally good and above the average of Australian hotels” (Morning Bulletin 5). The first print run of Mrs Maclurcan’s Cookery Book sold out in weeks, and a second edition was swiftly produced. By 1903 there were 26,000 copies of Maclurcan’s book in print—one of which was deposited in the library of Queen Victoria. While the existence of any particular cookbook does not constitute evidence that any person ever reproduced a recipe from it, the not immodest sales enjoyed by Pearson and Maclurcan can, at the least, be taken to indicate a popular interest in the style of cookery, that is “plain cookery”, delineated in their respective works. If those who bought these books never actually turned them into working copies—that is, cooked from them—they likely aspired to do so. Practical classes in plain cookery were also popular in Australia in the latter part of the nineteenth century. The adjectival coupling of the word “plain” to “cookery” in colonial Australia can be seen then to have formed an appealing duet at that time If a modern author or reviewer described the body of recipes encapsulated in a cookbook as “plain cookery”, it would not serve to recommend it to the contemporary market—indeed it would likely condemn such a publication to pulping, rather than sales of many thousands—as the term would be understood by most modern cooks, and eaters, to describe food that was dull and lacking in flavour and cosmopolitan appeal. We now prefer cookery books that offer instruction on the preparation of dishes that are described as “exotic”, “global”, “ethnic”, “seasonal”, “local”, and “full of flavour”, and that lend those that prepare and consume the dishes they contain the “glamour of culinary ethnicity” (Appadurai 10). It would seem to be stating the obvious then to say that “plain cookery” meant something entirely different to colonial Australians, except that modern Australians commonly believe that their nineteenth century brethren ate an “abominable”, “monotonous”, “low standard” diet (Santich, The High and The Low 37), and therefore if they preferred their meals to be plain cooked, that these would have been exactly as our present-day interpretation would have them. Yet Pearson describes plain cookery as an “art” (3), arguably a rhetorical epithet, but she was a zealous educator and would not have used such a term to describe a style of cookery that she expected to turn out low quality dishes that were vile and dull. What Pearson and Maclurcan actually present in their respective books is English cookery: which was also known as plain cookery. The Anglo-Celtic population of Australia in the nineteenth century held varied opinions—ranging from obsequious to hateful—about England, depending on their background. The majority, however, considered it their natural home—including many who were colonial born—and the cultural model they reproduced, with local modifications, was that of the “mother country” (Abbott 10) some 10,000 long miles away. English political, legal, economic, and social systems were the foundation of white Australian society. In keeping with this, colonial cooks “perpetuated an English style of cookery, English food values, [and] an English meal structure” (Santich, Looking for Flavour 6) and English cookbooks were the models that colonial cooks and cookery writers drew upon. When Polly, the heroine of Henry Handel Richardson’s novel The Fortunes of Richard Mahoney, teaches herself to make pastry from a cookbook in her rudimentary kitchen on the Victorian goldfields circa 1853, historical accuracy requires her to have employed an imported publication to guide her. It was another decade before the first Australian cookbook, Edward Abbott’s The English And Australian Cookery Book, was published in 1864. Prior to the appearance of Abbott’s work, colonial cooks wanting the guidance of a culinary manual were reliant on the imported English titles stocked by Australian booksellers, such as Eliza Acton’s Modern Cookery for Private Families, Beeton’s Book of Household Management and William Kitchiner’s The Cook’s Oracle. These three particular cookbooks were amongst the most successful and influential works in the nineteenth century Anglo-sphere and were commonly considered as manuals of plain cookery: Acton’s particular work is also the source of the most commonly quoted definition of “plain cookery” as “the principles of roasting, boiling, stewing and baking” (Acton 167) and I am going let it stand as the model of such in this piece. If a curt literary catalogue, such as that used by Acton to delineate plain cookery, were used to describe any cuisine it would serve to make it seem austere, and the reputation of English food and cookery has likely suffered from a face value acceptance of it (and by association so has its Australian culinary doppelganger). A considered inspection of Acton’s work shows that her instructions for the plain methods of roasting, boiling, and stewing of food, cover 13 pages, followed by more than 100 pages of recipes for 19 different varieties of meat, poultry, and game that are further divided into numerous variant cuts. Three pages were dedicated to instruction for boiling potatoes properly. When preparing any of these dishes she enjoins her readers to follow the “slow methods of cooking recommended” (167) to ensure a superior end product. The principles of baking were elucidated across several chapters, taking under this classification the preparation of various types of pastry and a multitude of baked puddings, cakes and biscuits: all prepared from base ingredients—not a packet harmed in their production. We now venerate the taste of so-called “slow cooked” food, so to discover that this was the method prescribed for producing plain cooked dishes suggests that plain cookery potentially had more flavour than we imagine. Acton’s work also challenges the charge that the product of plain cookery was monotonous. We have developed a view that we must have a multitudinous array of different types of food available, all year round, for it to be satisfactory to us. Acton demonstrates that variety in cookery can be achieved in other ways such as in types and cuts of meat, and that “plain” was not necessarily synonymous with sameness. The celebrated twentieth century English food writer Elizabeth David says that Modern Cookery was the “most admired and copied English cookery book of the nineteenth century” (305). As the aspiration of most colonial cooks was the reproduction of English cookery it is not unreasonable to expect that Acton’s work might have had some influence on those that wrote cookery manuals for them. We know that Edward Abbott borrowed from her as he writes in his introduction that he has combined “the advantages of Acton’s work” (5) into this own. Neither Pearson or Maclurcan acknowledge any influence at all upon their works but their respective manuals are not particularly original in content—with the exception of some unique regional recipes in Maclurcan—and they must have drawn upon other cookery manuals of the same style to develop their repertoire. By the time they were writing, “large portions [of Acton’s] volume [had] been appropriated [by] contemporary [cookbook] authors [such as Abbott] without the slightest acknowledgment” (Acton 4): the famous Mrs. Beeton is generally considered to have borrowed heavily from Acton for the cookery section of her successful tome Household Management. If Pearson and Maclurcan did not draw directly on Acton—and they well might have—then they likely used culinary sources that had subsumed her influence as their inspiration. What was considered to constitute plain cookery was not as straightforward as Acton’s definition; it was also “generally understood” to be free of any French influence (David 35). It was a commonly held suspicion amongst nineteenth century English men and women that Gallic cooks employed sauces and strong flavourings such as garlic and other “low and treacherous devices” (Saunders 4), to disguise the fact that they had such poor quality ingredients to work with. On the other hand, the English “had such faith” in the superior quality of their native produce that they considered it only required treatment with plain cookery techniques to be rendered toothsome: this culinary Francophobia persisted in the colonies. In the novel, The Three Miss Kings, set in Melbourne in 1880, the trio of the title take lodgings with a landlady, who informs them from the outset that she is “only a plain cook, and can’t make them French things which spile [sic] the stomach” (Cambridge 36). While a good plain cook might have defined herself by the absence of any Gallic, or indeed any other “foreign”, influence in the meals she created, there had been a significant absorption of elements of both of these in the plain cookery she practised, but these had become so far embedded in English cookery that she was unaware of it. A telling example of this is the unremarked inclusion of curry in the plain cookery cannon. While the name and homogenised form of this dish is of British invention, it retained the varied spices, including pungent chillies, of the Indian cuisine it simulated. Pearson and Maclurcan, and Abbott, all included recipes for curries and curried dishes in their respective cookery books. Over time, plain cookery seems to have become conflated with “plain food”, but the latter was not necessarily the result of the former. There was little of Pearson’s “art” involved in creating plain food, except perhaps an ability to keep this style of food so flavourless and dull that it offered neither pleasure nor temptation to eat any more than that required to sustain life. This very real plainness was actively sought by some as “plain food was synonymous with moral rectitude […] and the plainer the food the more virtuous the eater” (Santich, Looking 28). A common societal appreciation of moral virtue is barely perceptible in modern Australian society but it was an attribute that was greatly valued in the nineteenth century Anglo-world and the consumption of plain food a necessary practice in the achievement of good character. (Our modern habit of labelling of foods “good” or “bad” shows that we continue to imbue food with moral overtones.) The list of “gustatory temptations” “proscribed by the plain food lobby” included “salt, spices, sauces and any flavourings that might have cheered the senses” (Santich, Looking 28). If this were the case then both Pearson and Maclurcan’s cookbooks would have dramatically failed to qualify as manuals of plain food. The recipes contained in their respective works feature a much greater use of components associated with flavour enhancement than we imagine to have been employed in plain cookery, particularly if we erroneously believe it to be analogous to plain food. Spices are used extensively in sweet and savoury dishes, as are various fresh green herbs and lemon juice and rind; homemade condiments such as mushroom ketchup (a type of essence pressed from a seasonal abundance of fungi), and a liberal employment of sherry, port, Madeira, and brandy that a “virtuous” plain food advocate would have considered most intemperate. Pearson and Maclurcan both give instructions for preparing rich stocks and gravies drawn from meat, bones and aromatic vegetables, and prescribe the end product of this process as the foundation for a variety of soups, sauces, and stews. Recipes are given for a greater diversity of vegetables than the stereotyped cabbage and potatoes of colonial culinary legend. Maclurcan displays a distinct tropical regionalism in her book providing recipes that use green bananas and pawpaw as vegetables, alongside other exotic species—for that time—such as eggplant, choko, mango, granadilla, passionfruit, rosella, prickly pear, and guava. Her distinct location, the coastal city of Townsville, is also reflected in the extensive selection of recipes for local species of fish and seafood such as beche-de-mer, prawns, and barramundi, which won Maclurcan a reputation as an expert on seafood. Ultimately, to gain a respectably informed understanding as to the taste, aroma, and texture of the plain cookery presented in the respective works of Pearson and Maclurcan one needs to prepare their recipes: I have done so, reproducing a wide selection of dishes from both books. Admittedly, I am a professionally trained cook with the skills to execute recipes to a high standard, but my practice is to scrupulously maintain the original listing of ingredients in the reproduction and follow the method as best I can. Through this practice I have made some delicious discoveries, which have helped inform my opinion that some colonial Australians, and perhaps significant numbers of them, must have been eating meals that were a long way from dull, flavourless and monotonous. It has been said that we employ our tongues for the “twin offices of rhetoric and taste” (Jaine 61). Words can exercise a significant influence on how we value the taste of—or actually taste—any particular food or indeed a cuisine. In the case of the popularly held opinion about the unappetizing state of colonial meals, it might be that the absence of rhetoric has contributed to this. Colonial food writers such as Pearson and Maclurcan did not “mince words” (Bannerman 166) and chose to use “plain titling” (David 306) and language that lacked the excessive adjectives and laudatory hyperbole typically employed by modern food writers. Perhaps if Pearson or Maclurcan had indulged in anointing their own works with enthusiastic recommendation and reference to international influences in their recipes, this might have contributed to a more positive impression of the food of our Anglo-Celtic ancestors. As an experiment with this idea I have taken a recipe from Cookery Recipes For The People and reframed its title and description in a modern food writing style. The recipe in question is titled “White Sauce” and Pearson writes that “this sauce will answer well for boiled fowl” (48): hardly language to make the dish sound appealing to the modern cook, and likely to confirm an expectation of plain cookery as tasteless and boring. But what if the recipe remained the same but the words used to describe it were changed, for example: the title to “Salsa Blanca” and the introductory remark to “this luxurious silky sauce infused with eschalot, mace, lemon, and sherry wine is perfect for perking up poached free-range chicken”. How much better might it then taste? References Abbott, Edward. The English And Australian Cookery Book: Cookery For The Many, As Well As The Upper Ten Thousand. London: Sampson Low, Son, & Marston, 1864. Acton, Eliza. Modern Cookery for Private Families. London: Longman, Brown, Green, Longmans, and Roberts, 1858. Appadurai, Arjun. “How to Make a National Cuisine: Cookbooks in Contemporary India”. Comparative Studies in Society and History 30 (1988): 3–24. Bannerman, Colin. A Friend In The Kitchen. Kenthurst NSW: Kangaroo Press, 1996. Brisbane Courier. “Mrs Maclurcan’s Cookery Book: A Collection of Practical Recipes, Specially Suitable for Australia [review].” Brisbane Courier c.1898. [Author’s manuscript collection.] Cambridge, Ada. The Three Miss Kings. London: Virago Press, 1987 (1st pub. Melbourne, 1891). David, Elizabeth. An Omelette and a Glass of Wine. London: Penguin, 1986. Freeman, Sarah. Mutton and Oysters: The Victorians and their Food. London: Victor Golllancz, 1989. Humble, Nicola. Culinary Pleasures. London, Faber & Faber, 2005. Jaine, Tom. “Banquets and Meals”. Pleasures of the Table: Proceedings of the Fifth Symposium of Australian Gastronomy (1991): 61–4. Jones, Shar, and Otto, Kirsten. Colonial Food and Drink 1788-1901. Sydney: Historic Houses Trust of New South Wales, 1985. Hartley, Dorothy. Food in England. London: Macdonald General, 1979. Hughes, Kathryn. The Short Life & Long Times of Mrs Beeton. London: Harper Perennial, 2006. Maclurcah, Hannah. Mrs Maclurcan’s Cookery Book: A Collection of Practical Recipes, Specially Suitable for Australia. Melbourne: George Robertson, 1905 (1st pub. Townsville, 1898). Morning Bulletin. “Gossip.” Morning Bulletin (Rockhampton) 10 May 1898: 5. Pearson, Margaret. Cookery Recipes for the People. Melbourne: Hutchinson, 1888. Richardson, Henry Handel. The Fortunes of Richard Mahony. London: Heinemann, 1954. Santich, Barbara. What the Doctors Ordered: 150 Years of Dietary Advice in Australia. Melbourne: Hyland House, 1995. ---. “The High and the Low: Australian Cuisine in the Late Nineteenth and Early Twentieth Centuries”. Journal of Australian Studies 30 (2006): 37–49. ---. Looking For Flavour. Kent Town: Wakefield, 1996 Saunders, Alan. “Why Do We Want An Australian Cuisine?”. Journal of Australian Studies 30 (2006): 1-17. Young, Linda. Middle-Class Culture in the Nineteenth Century: America, Australia and Britain. Basingstoke: Palgrave Macmilian, 2002.

Abstract A description is provided for Aphanomyces cochlioides. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Amaranthus blitoides, A. retroflexus, Beta lomatogona, B. patellaris, B. patula, B. trigyna, B. vulgaris, B. vulgaris var. cicla, Celosia argentea, Chenopodium album, Dianthus chinensis, Echinocloa crus-gallii, Escholtzia californica, Gomphrena globosa, Kochia scoparia, K. scoparia var. culta, Lychnis alba, Mollugo verticillata, Papaver rhoeas, Portulaca oleracea, Salsola kali, Saponaria ocymoides, Spinacia oleracea, Tetragonia tetragonioides. DISEASE: Blackroot of sugar beet; the fungus is a facultatively necrotrophic plant pathogen. There is an early acute phase of short duration (causing pre-emergence and post-emergence damping off) and a later chronic phase which may persist throughout the life of the plant. Infection during seed germination is indicated by poor stands with killed seeds remaining in the soil to infect young seedlings emerging elsewhere. Seedling hypocotyls are infected at ground level, a water-soaked area extending up and down the hypocotyl or the upper part of the young taproot from the point of entry. The invaded root or hypocotyl rapidly becomes brownish and then assumes the characteristic jet black discoloration from which the disease derives its name. Soon after, the cortex of the hypocotyl dries, and the stem and hypocotyl shrink, leaving a thin strand of tissue. Oospores are easily seen in the collapsed root and hypocotyl tissue on microscopic examination. The chronic phase first appears on plants in late June to August. A greenish-yellow discoloration of the swollen hypocotyl develops, affected root tissues becoming dark brown, soft, water-soaked, splitting apart and eventually shrivelling. Plants are stunted and lower leaves turn yellow. GEOGRAPHICAL DISTRIBUTION: Asia: Japan. Australasia & Oceania: Australia (Qld). Europe: Austria, Denmark, England, France, Germany (GDR & GFR), Hungary, Ireland, Poland, Sweden, USSR (Russia). North America: Canada (Alberta, NS, Ontario, Quebec), USA (California, Connecticut, Indiana, Michigan, Maine, MT, North Dakota, Ohio, South Dakota, Texas, Washington State, Wisconsin). South America: Chile. See CMI Distribution Maps of Plant Diseases 596. TRANSMISSION: Presumably in soil by oospores originating from sloughed-off root tissues and germinating to produce zoospores. The conditions favouring oospore germination are however largely unknown. Survival may occur on alternative hosts present in the crop, so the disease may be difficult to eliminate. The disease is particularly severe in warm, wet conditions, less so in cool, wet weather.