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Journal articles on the topic "Nitrogen fixing plants (Australia)":
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Schulze, E. D., R. J. Williams, G. D. Farquhar, W. Schulze, J. Langridge, J. M. Miller, and B. H. Walker. "Carbon and nitrogen isotope discrimination and nitrogen nutrition of trees along a rainfall gradient in northern Australia." Functional Plant Biology 25, no. 4 (1998): 413. http://dx.doi.org/10.1071/pp97113.
Carbon isotope discrimination (Δ) and nitrogen isotope ratios, N-concentrations and specific leaf area of 50 tree species were investigated along a continental-scale transect through northern Australia over which annual rainfall varied from 1800 mm to 216 mm rainfall. Average specific leaf area (SLA, m2 kg-1) of leaves ranged from 10.7 ± 1.7 (av. ± s.d.) in N2 fixing deciduous trees to 0.8 ± 0.4 in spinescent sclerophylls shrubs. SLA generally decreased with increasing aridity. N2 fixing species had higher leaf N concentration (average N-concentration 20.1 ± 3.7 mgN g-1) than non- N2 fixing (10.8 ± 3.3) or spinescent species (7.05 ± 1.8). Community-averaged Δ was approximately constant at rainfalls above 475 mm (average Δ = 19.4 ± 1.2‰). Where rainfall was less than 475 mm, Δ decreased from 19‰ to 17‰ at 220 mm. Δ was positively correlated with SLA. Δ of deciduous N2 fixing species and spinescent species were 1‰ and 2.4‰ lower than in evergreen sclerophyllous species. Δ in the N2 fixing Allocasuarina was 1.2‰ lower than in non- N2 fixing sclerophyllous species. The δ15N-values indicated N2 fixation only at high rainfall. Burning of the field layer in a Eucalyptus forest had no effect on all measured tree parameters including δ15N, but δ15N increased under grazing conditions to >5‰. The constant value of community averaged Δ between 1800 and 450 mm may be the result of replacement of functional types and species. The decline in Δ in the more arid section may be a function of both low species diversity, and a highly aseasonal and unpredictable rainfall regime.
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Milne, Cameron, Stephen J. Trueman, Shahla Hosseini Bai, and Alison Shapcott. "Translocation and population establishment of Schoenus scabripes (Cyperaceae)." Australian Journal of Botany 69, no. 4 (2021): 225. http://dx.doi.org/10.1071/bt20149.
Coastal ecosystems are under increasing pressure from land clearing along the east coast of Australia. Methods to mitigate the impacts of land clearing are needed, particularly for locally uncommon plants. In addition, there are significant knowledge gaps about cultivation methods for many wet-heath sedges. Translocation via salvage and relocation of plant populations is often the only viable ex situ, last-resort conservation option for populations threatened by clearing. We aimed to determine if translocation was an effective method for relocating a wild population of Schoenus scabripes, and how the use of organic mulch or a nitrogen-fixing companion plant affected survival, growth and nutrient concentrations of nursery-grown S. scabripes plants. Whole-plant translocation of S. scabripes plants was effective, with 62% survival at 50 months after installation. Survival of translocated nursery-grown plants was 35% at 27 months after installation. Organic mulch improved survival and health of field-established plants; however, companion plants did not improve plant health or survival. Stem and leaf winter potassium concentrations for mulched plants were significantly higher than for other treatments. Our case study demonstrated two establishment techniques for S. scabripes and suggested that whole-plant translocation of mature clumps is more effective than field establishment of nursery-grown plants.
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Unkovich, Murray J., John S. Pate, Edward C. Lefroy, and David J. Arthur. "Nitrogen isotope fractionation in the fodder tree tagasaste (Chamaecytisus proliferus) and assessment of N2 fixation inputs in deep sandy soils of Western Australia." Functional Plant Biology 27, no. 10 (2000): 921. http://dx.doi.org/10.1071/pp99201.
Nitrogen (N) isotope fractionation and symbiotic N fixation were investigated in the shrub legume tagasaste, growing in the glasshouse and field. In a pot study of effectively nodulated plants supplied with 0, 1, 5 and 10 mM nitrate [stable isotope 15N (δ15N) of 3.45‰], the δ15N of dry matter N of fully symbiotic cultures indicated a greater isotope fractionation during distribution of N between nodules, stems, leaves and roots than for N2 fixation itself, with whole-plant δ15N being near zero (–0.46 to 0.42‰). Regardless of whether plants were field-grown, pot-cultured, fixing N2 or utilising mineral N, woody stems were depleted in 15N relative to all other plant parts. The similar orders of ranking of δ15N for plant components of the nitrate-treated and fully symbiotic plants, and a general increase in δ15N as plants were exposed to increasing concentrations of nitrate, indicated that N isotope fractionation can be accounted for, and thus not undermine 15N natural abundance as means of measuring N2 fixation inputs in tagasaste trees. In pot culture the percentage of plant N derived from the atmosphere (%Ndfa) by symbiotic N2 fixation fell from 85 to 37% when the nitrate supply was increased from 1 to 10 mM, with evidence of nitrate N being preferentially allocated to roots. δ15N natural abundance assessments of N2 fixation of 4-year-old trees of field-grown tagasaste in alley (550 trees ha-1) or plantation (2330 trees ha-1) spacing were undertaken at a study site at Moora, Western Australia, over a 2-year period of shoot regrowth (coppicing). Cumulative N yields and %Ndfa were similar for trees of alley and plantation spacing, with much less coppice N accumulation in the first compared to the second year after cutting. Scaling values from a tree to plot area basis, and using a mean %Ndfa value of 83% for all trees at the site, inputs of fixed N into current biomass plus fallen litter over the 2 years of coppicing were calculated to be 83 kg N ha-1 year-1 for the alley and 390 kg N ha-1 year-1 for the plantation spacing. Although the plantation tagasaste fixed 587 kg N ha-1 in the second year, close to the maximum value reported in the literature for any N2-fixing system, this should not be seen as typical where the trees are used for animal production, since grazing and cutting management will substantially reduce productivity and N2 fixation input.
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Bergersen, F. J. "Phillip Sadler Nutman. 10 October 1914 – 4 May 2004." Biographical Memoirs of Fellows of the Royal Society 51 (January 2005): 315–26. http://dx.doi.org/10.1098/rsbm.2005.0020.
Dr Phillip Nutman was a microbiologist and plant physiologist, distinguished for his research into the infection of roots of legumes by root nodule bacteria of the genus Rhizobium. This is a subject that is truly symbiotic, involving both leguminous host plants and free–living soil bacteria, which join in a complex, often specific interaction to produce symbiotic, nodulated, nitrogen–fixing plants. His research pre–dated the molecular genetics now available to modern researchers and used the techniques of plant physiology and Mendelian genetics to explore the mechanisms of infection, subsequent nodule development and the symbiotic fixation of atmospheric nitrogen. The research took place in the laboratories and fields of Rothamsted Experimental Station, Harpenden, Hertfordshire, where the study of nitrogen fixation by nodulated legumes first developed in the UK (Russell 1966). There were components of related research in Australia, 1953–57 (Bergersen 2001), and also in other countries during the International Biological Programme of 1966–73, in which Nutman was an active participant. He was a well–respected leader in active research during a period in which the subject underwent rapid development. In many ways his work became the basis on which more recent research has developed. He was a modest, self–effacing, scrupulously honest man who became increasingly impatient with the methods of research management that were emerging within the Agriculture and Food Research Council towards the end of his career at Rothamsted. After his retirement, in his Personal Record, he wrote critically about these matters.
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Dinnage, Russell, Anna K. Simonsen, Luke G. Barrett, Marcel Cardillo, Nat Raisbeck-Brown, Peter H. Thrall, and Suzanne M. Prober. "Larger plants promote a greater diversity of symbiotic nitrogen-fixing soil bacteria associated with an Australian endemic legume." Journal of Ecology 107, no. 2 (October 30, 2018): 977–91. http://dx.doi.org/10.1111/1365-2745.13083.
Gupta, V. V. S. R., S. J. Kroker, M. Hicks, C. W. Davoren, K. Descheemaeker, and R. Llewellyn. "Nitrogen cycling in summer active perennial grass systems in South Australia: non-symbiotic nitrogen fixation." Crop and Pasture Science 65, no. 10 (2014): 1044. http://dx.doi.org/10.1071/cp14109.
Non-symbiotic nitrogen (N2) fixation by diazotrophic bacteria is a potential source for biological N inputs in non-leguminous crops and pastures. Perennial grasses generally add larger quantities of above- and belowground plant residues to soil, and so can support higher levels of soil biological activity than annual crops. In this study, the hypothesis is tested that summer-active perennial grasses can provide suitable microsites with the required carbon supply for N2 fixation by diazotrophs, in particular during summer, through their rhizosphere contribution. In a field experiment on a Calcarosol at Karoonda, South Australia, during summer 2011, we measured populations of N2-fixing bacteria by nifH-PCR quantification and the amount of 15N2 fixed in the rhizosphere and roots of summer-active perennial grasses. Diazotrophic N2 fixation estimates for the grass roots ranged between 0.92 and 2.35 mg 15N kg–1 root day–1. Potential rates of N2 fixation for the rhizosphere soils were 0.84–1.4 mg 15N kg–1 soil day–1 whereas the amount of N2 fixation in the bulk soil was 0.1–0.58 mg 15N kg–1 soil day–1. Populations of diazotrophic bacteria in the grass rhizosphere soils (2.45 × 106 nifH gene copies g–1 soil) were similar to populations in the roots (2.20 × 106 nifH gene copies g–1 roots) but the diversity of diazotrophic bacteria was significantly higher in the rhizosphere than the roots. Different grass species promoted the abundance of specific members of the nifH community, suggesting a plant-based selection from the rhizosphere microbial community. The results show that rhizosphere and root environments of summer-active perennial grasses support significant amounts of non-symbiotic N2 fixation during summer compared with cropping soils, thus contributing to biological N inputs into the soil N cycle. Some pasture species also maintained N2 fixation in October (spring), when the grasses were dormant, similar to that found in soils under a cereal crop. Surface soils in the rainfed cropping regions of southern Australia are generally low in soil organic matter and thus have lower N-supply capacity. The greater volume of rhizosphere soil under perennial grasses and carbon inputs belowground can potentially change the balance between N immobilisation and mineralisation processes in the surface soils in favour of immobilisation, which in turn contributes to reduced N losses from leaching.
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Roper, MM, and V. Gupta. "Management-practices and soil biota." Soil Research 33, no. 2 (1995): 321. http://dx.doi.org/10.1071/sr9950321.
The soil biota consist of a large number and range of micro- and macro-organisms and are the living part of soils. They interact with each other and with plants, directly providing nutrition and other benefits. They regulate their own populations as well as those of incoming microorganisms by biological control mechanisms. Microorganisms are responsible for organic matter decomposition and for the transformations of organically bound nitrogen and minerals to forms that are available to plants. Their physical structure and products contribute significantly to soil structure. Management practices have a significant impact on micro- and macro-organism populations and activities. Stubble retention, an increasing trend in Australia, provides an energy source for growth and activity. Significant increases in the sizes and activities of microbial biomass, including heterotrophic microorganisms, cellulolytic microorganisms, nitrogen-fixing bacteria and nitrifying and denitrifying bacteria have been observed. In addition, increases in protozoa and meso- and macro-fauna have been seen. Stubble retention provides a means of maintaining or increasing organic matter levels in soils. The way in which stubbles are managed may impact further on the activities of the soil biota and may alter the population balance, e.g. bacterial:fungal ratios. In general, no-tillage results in a concentration of microorganisms closer to the soil surface and causes least disruption of soil structure compared with conventionally tilled soils. Some plant diseases increase with stubble retention and with no-tillage, particularly where the next crop is susceptible to the same disease as the previous crop. However, the general increase in microbial populations resulting from stubble retention can exclude pathogens through competitive inhibition and predatory and parasitic activity. Cropping sequences may be used to break disease cycles. Crop rotations that include legumes may provide additional nitrogen and stimulate mineralization processes. Coupled with no-tillage in stubble retention systems is an increased usage of herbicides to control weeds. Continued herbicide use has been shown to significantly depress some groups of microorganisms and some of their activities but, in Australia, little information is available about the effects of herbicides on microbial populations. Although we know that micro- and macro-organisms are vital in maintaining ecosystem function, our knowledge about them is still very limited. New techniques in molecular microbial ecology promise further advances. Much more detailed information about the effects of specific managements on the size and activities of populations is needed. Soils and their processes are extremely complex and, in order to develop appropriate management practices, integration of new and existing information is necessary. This is now being made possible through computer simulation modelling.
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Tang, C., L. Barton, and C. D. A. McLay. "A comparison of proton excretion of twelve pasture legumes grown in nutrient solution." Australian Journal of Experimental Agriculture 37, no. 5 (1997): 563. http://dx.doi.org/10.1071/ea96151.
Summary.The use of legumes to improve the productivity of pastures has usually been associated with an increase in soil acidification. The present study compared the acidification potential of 12 N2-fixing pasture legume species/genotypes using a solution culture assay. The legumes were chosen because of their use or potential use in farming systems in the mediterranean zones of southern Australia. The species grown were Trifolium subterraneum L. (vars. Dalkeith, Yarloop and Clare), Trifolium glomeratum L., Trifolium tomentosum L., Medicago murex Willd., Medicago polymorpha L., Medicago truncatulaGaertn., Ornithopus compressus L., Ornithopus sativusBrot., Trifolium vesiculosum and Trifolium balansae. Proton excretion was measured over a period of 21 days from days 40 to 61 after germination. The amount of protons excreted into solution varied between 143 and 265 cmol H+ /kg dry matter for the different species and genotypes. In general, T. tomentosum and T. glomeratum excreted greater amounts of protons per unit biomass than Medicago species and T. subterraneum, which, in turn, excreted more protons than Ornithopus species. The amount of proton excreted per kilogram biomass was well correlated with the concentrations of excess cations over anions and ash alkalinity in plants across all the species. Total acid production was highly correlated with accumulation of excess cations and ash alkalinity, total dry matter production and total nitrogen fixation during the study period. It is suggested that the potential proton excretion by new pasture legume species should be considered when they are introduced into farming systems.
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Warrington, Staci, Allan G. Ellis, Jan-Hendrik Keet, and Johannes J. Le Roux. "How does familiarity in rhizobial interactions impact the performance of invasive and native legumes?" NeoBiota 72 (March 28, 2022): 129–56. http://dx.doi.org/10.3897/neobiota.72.79620.
Mutualisms can be disrupted when non-native plants are introduced into novel environments, potentially impacting their establishment success. Introduced species can reassemble mutualisms by forming novel associations with resident biota or by maintaining familiar associations when they are co-introduced with their mutualists. Invasive Australian Acacia species in South Africa have formed nitrogen-fixing rhizobium mutualisms using both pathways. Here we examined the contributions of novel vs familiar rhizobial associations to the performance of Acacia saligna across different soils within South Africa’s Core Cape Subregion (CCR), and the concomitant impacts of exotic rhizobia on the endemic legume, Psoralea pinnata. We grew each legume with and without Australian Bradyrhizobium strains across various CCR soil types in a glasshouse. We identified root nodule rhizobium communities associating with seedlings grown in each treatment combination using next-generation sequencing (NGS) techniques. Our results show that different CCR soils affected growth performances of seedlings for both species while the addition of Australian bradyrhizobia affected growth performances of A. saligna, but not P. pinnata. NGS data revealed that each legume associated mostly with their familiar rhizobial partners, regardless of soil conditions or inoculum treatment. Acacia saligna predominantly associated with Australian bradyrhizobia, even when grown in soils without inoculum, while P. pinnata largely associated with native South African Mesorhizobium strains. Our study suggests that exotic Australian bradyrhizobia are already present and widespread in pristine CCR soils, and that mutualist limitation is not an impediment to further acacia invasion in the region. The ability of P. pinnata to sanction Australian Bradyrhizobium strains suggests that this species may be a good candidate for restoration efforts following the removal of acacias in CCR habitats.
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Fernandez, Romina D., Sergio J. Ceballos, Agustina Malizia, and Roxana Aragón. "Gleditsia triacanthos (Fabaceae) in Argentina: a review of its invasion." Australian Journal of Botany 65, no. 3 (2017): 203. http://dx.doi.org/10.1071/bt16147.
Gleditsia triacanthos L. is a woody species native to North America that has invaded Uruguay, Spain, Australia, South Africa and several countries of Central and Eastern Europe. In Argentina, it has become one of the most important invasive woody species and has a high potential to continue spreading. In this study, we review different aspects of G. triacanthos invasion in Argentina that include descriptions of invaded ecoregions and environments, intrinsic characteristics of the species, invasion dynamics and impacts. In addition, we discuss mechanisms that potentially explain its success, control strategies and natural barriers to its invasion. We reviewed a total of 91 articles and book chapters, of which 62 were developed in Argentina. Studies reported that the invasion of G. triacanthos in different ecoregions was favoured by intrinsic characteristics of the species, together with the interaction with cattle and disturbances, which cause negative impacts on flora, fauna and ecosystem processes. Disturbances were proposed as the main mechanism to explain this species’ invasion, but other hypotheses such as the release of natural enemies and/or propagule pressure might also be important. Further studies are required, mainly on the impacts on ecosystem processes and on the control, production of organic compounds and mutualistic interactions (with nitrogen-fixing bacteria and mycorrhizal fungi).
Dissertations / Theses on the topic "Nitrogen fixing plants (Australia)":
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Riffkin, Penelope A. "An assessment of white clover nitrogen fixation in grazed dairy pastures of south-western Victoria." Thesis, [Richmond, N.S.W.] : University of Western Sydney, Hawkesbury, 1999. http://handle.uws.edu.au:8081/1959.7/31.
Australia is amongst the more efficient milk producers in the world.Milk production in the region of south-western Victoria relies mainly on rainfed white clover/perennial ryegrass pastures.As the demand for efficient and competitive milk production increases, the value of N2 fixation must be maximised. The objective of this thesis was to assess N2 fixation in grazed dairy pastures in south-western Victoria. Several tests and experiments were conducted and results noted. Studies revealed low white clover yields to be the major factor limiting N2 fixation in the region. For N2 fixation to have a significant impact on pasture quality and production, problems associated with legume persistence need to be addressed. Strategies may include the breeding of white clover cultivars with greater tolerance to water stress, improved winter production and increased competitiveness with companion species. Alternatively, the introduction of different legume species, better suited to the environment, may be appropriate. Where N2 fixation is unlikely to satisfy N demands, it may be necessary to introduce the strategic use of supplementary feeds or nitrogenous fertilisers. However, this would need to be carefully considered to ensure high input costs did not jeopardise the competitive advantage of low input pasture-based systems
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Riffkin, Penelope A., of Western Sydney Hawkesbury University, and Faculty of Science and Technology. "An assessment of white clover nitrogen fixation in grazed dairy pastures of south-western Victoria." THESIS_FST_xxx_Riffkin_P.xml, 1999. http://handle.uws.edu.au:8081/1959.7/31.
Australia is amongst the more efficient milk producers in the world.Milk production in the region of south-western Victoria relies mainly on rainfed white clover/perennial ryegrass pastures.As the demand for efficient and competitive milk production increases, the value of N2 fixation must be maximised. The objective of this thesis was to assess N2 fixation in grazed dairy pastures in south-western Victoria. Several tests and experiments were conducted and results noted. Studies revealed low white clover yields to be the major factor limiting N2 fixation in the region. For N2 fixation to have a significant impact on pasture quality and production, problems associated with legume persistence need to be addressed. Strategies may include the breeding of white clover cultivars with greater tolerance to water stress, improved winter production and increased competitiveness with companion species. Alternatively, the introduction of different legume species, better suited to the environment, may be appropriate. Where N2 fixation is unlikely to satisfy N demands, it may be necessary to introduce the strategic use of supplementary feeds or nitrogenous fertilisers. However, this would need to be carefully considered to ensure high input costs did not jeopardise the competitive advantage of low input pasture-based systems Masters Thesis
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Cho, Hyojin. "A study of transcript profiling of soybean roots during nitrogen fixing symbiosis." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/5915.
Thesis (M.S.)--University of Missouri-Columbia, 2006. The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on May 7, 2009) Includes bibliographical references.
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He, Xinhua. "Nitrogen exchange between plants through common mycorrhizal networks /." [St. Lucia, Qld.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18272.pdf.
Devkota, Dibya. "Habitat, isolation, identification and nitrogen fixation of Rhizobiaceae associated with rangeland legumes from Wyoming, USA." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1313917311&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Rana, Debashis. "The nitrogen-fixing symbiosis between Rhizobium sp. sin-1 and Sesbania spp. /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9842559.
Burn, Joanne Elizabeth. "Analysis of the regulatory nodulation gene nodD of rhizobium leguminosarum." Thesis, University of East Anglia, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329095.
Miller, Simon Hugh, and n/a. "Genetic basis for the host-specific nitrogen fixation phenotype of Caucasian clover rhizobia." University of Otago. Department of Microbiology, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070306.155157.
Trifolium ambiguum (Caucasian clover) is being released in New Zealand for use in areas where growth of T. repens (white clover) is marginal. Although closely related to T. repens, T. ambiguum has unique and highly specific nodulation requirements and as rhizobial strains capable of effectively nodulating T. ambiguum are not naturally found in New Zealand soils, they must be introduced with the seed. Rhizobium leguminosarum bv. trifolii strains such as ICC105 form effective nodules on T. ambiguum but ineffective (Fix⁻) nodules on T. repens. The T. repens nodules nevertheless develop normally and contain bacteroids. R. l. bv. trifolii strains that are effective on T. repens such as NZP561, fail to nodulate T. ambiguum. As the host-specific nitrogen fixation defect of Caucasian clover rhizobia on T. repens has potentially adverse agronomic implications, the genetic basis for this Fix⁻ phenotype was investigated.
Rhizobium leguminosarum bv. trifolii strain ICC105 was converted to Fix⁺ on T. repens by the introduction of an 18-kb fragment of DNA from a white clover rhizobial strain (NZP514) symbiotic plasmid. This fragment contained several nif and fix genes, including nifHDKEN, fixABCX, nifA, nifB, fdxN and fixU. Tn5 mutation of these white clover rhizobial genes demonstrated that most were required to impart the Fix⁺ phenotype on T. repens to ICC105, with the exception of nifA. Mutagenesis of the ICC105 nifA gene and subsequent complementation with various combinations of the white clover rhizobia nif/fix genes as well as transcriptional lacZ fusion studies of the ICC105 nifA and nifH genes demonstrated that ICC105 nifA is expressed and functional during the ineffective nodulation of T. repens and able to activate expression of nifHDKEN and fixABCX operons derived from white clover rhizobium but not from ICC105.
Sequence analysis and comparison of the intergenic region between the divergently transcribed nif/fix operons revealed a conserved 111-bp region found between the nifH/fixA promoters of Caucasian clover rhizobia, but not in white clover rhizobia. Attempts to modify this region in ICC105 failed in creating a strain which was Fix⁺ on T. repens; however recombination of the nifHD/fixAB region from a white clover rhizobium into the ICC105 genome produced several strains with a �swapped� nitrogen fixation phenotype (i.e. Fix⁺ on T. repens and Fix⁻ on T. ambiguum). A hypothesis was therefore proposed by which differences in the nifH/fixA promoter regions of Caucasian clover rhizobia and white clover rhizobia modulate the expression of the upstream genes in response to the particular plant host they are nodulating.
The incompatibility between the symbiotic plasmid of R. l. bv. trifolii ICC105 and the white clover rhizobium symbiotic plasmid cointegrate, pPN1, was also investigated and potential regions of each plasmid involved in this incompatibility were identified.
The research presented in this thesis has contributed to the genetic knowledge of the nitrogen fixation genes, and regulation of these genes in R. l. bv. trifolii. It has also provided progress towards the goal of creating a suitable inoculant strain for T. ambiguum that is able to fix nitrogen in symbiosis with both T. repens and T. ambiguum.
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Abi-Ghanem, Rita. "Optimizing biological nitrogen fixation and evaluating Iraqi extension education." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Dissertations/Summer2009/R_Abi-Ghanem_070909.pdf.
Thorne, Stephen Howard. "Stationary phase survival of Rhizobium leguminosarum." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265401.
Ya, Tang. Nature's bounty, nitrogen-fixing plants for mountain farmers. Kathmandu, Nepal: International Centre for Integrated Mountain Development, Natural Resource Management Programme, 2004.
International Workshop on Associative Interactions of Nitrogen-Fixing Bacteria with Plants (1995 Saratov, Russia). International Workshop on Associative Interaction of Nitrogen-Fixing Bacteria with Plants: Saratov, Russia, June 5-8, 1995 : book of abstracts. Saratov, Russia: [Russian Academy of Sciences, 1995.
International Symposium on Nitrogen Fixation with Non-Legumes (3rd 1984 Helsinki, Finland). Nitrogen fixation with non-legumes: The Third International Symposium on Nitrogen Fixation with Non-Legumes, Helsinki, 2-8 September 1984. Dordrecht: M. Nijhoff, 1986.
Pinhey, Sally, and Margaret Tebbs. "Nitrogen-fxing plants." In Plants for soil regeneration: an illustrated guide, 5–7. Wallingford: CABI, 2022. http://dx.doi.org/10.1079/9781789243604.0002.
Abstract This chapter discusses nitrogen-fixing plants and their role in symbiosis with bacteria. The chapter emphasizes legumes as the plant family best able to host symbiotic bacteria, and it is the conversion of fixed nitrogen into protein in the seed that makes them an important food source.
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Tak, Nisha, Garima Bissa, and Hukam S. Gehlot. "Methods for Isolation and Characterization of Nitrogen-Fixing Legume-Nodulating Bacteria." In Nitrogen Metabolism in Plants, 119–43. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9790-9_12.
Reis, Veronica Massena, Jos Vanderleyden, and Stijn Spaepen. "N2-Fixing Endophytes of Grasses and Cereals." In Ecological Aspects of Nitrogen Metabolism in Plants, 231–53. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470959404.ch11.
Sprent, J. I., and S. M. de Faria. "Mechanisms of infection of plants by nitrogen fixing organisms." In Nitrogen Fixation with Non-Legumes, 3–11. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0889-5_1.
Serra, J. L., J. M. Arizmendi, F. Blanco, M. Martínez-Bilbao, A. Alaña, O. Fresnedo, I. Urkijo, and M. J. Llama. "Nitrate Assimilation in the Non-N2-Fixing Cyanobacterium Phormidium Laminosum." In Inorganic Nitrogen in Plants and Microorganisms, 196–202. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75812-6_30.
Barton, Larry L., Gordon V. Johnson, and Yvonne M. Bishop. "The Metabolism of Iron by Nitrogen-Fixing Rhizospheric Bacteria." In Iron Nutrition in Plants and Rhizospheric Microorganisms, 199–214. Dordrecht: Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-4743-6_9.
Getsen, M. V., V. Ja Kostyaev, and E. N. Patova. "Role of Nitrogen-Fixing Cryptogamic Plants in the Tundra." In Disturbance and Recovery in Arctic Lands, 135–50. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5670-7_8.
Hirsch, Ann M., and Nancy A. Fujishige. "Molecular Signals and Receptors: Communication Between Nitrogen-Fixing Bacteria and Their Plant Hosts." In Biocommunication of Plants, 255–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23524-5_14.
Laplaze, Laurent, Marie-Claude Bon, Mame Oureye Sy, Aziz Smouni, Christelle Allonneau, Florence Auguy, Thierry Frutz, et al. "Molecular Biology of Tropical Nitrogen-Fixing Trees in the Casuarinaceae Family." In Molecular Biology of Woody Plants, 269–85. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-017-2311-4_10.
Conference papers on the topic "Nitrogen fixing plants (Australia)":
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Lyamkina, Yulia B. "Modeling symbiotic fixing of nitrogen nodules in legume plants using soy example." In the International Conference. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1868013.1868040.
Safronava, H. V., Z. M. Aleschenkova, I. N. Ananyeva, and K. I. Evenkova-Chernetsova. "Rape rhizospheric nitrogen-fixing and phosphate-mobilizing biocenoses promoted by microbial preparations." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.213.
The application of microbial preparations Gordebac, AgroMyc and Baktopin in spring rape culture stimulates the development of nitrogen-fixing and phosphate-mobilizing microbiocenoses in crop rhizosphere.
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Umarov, B. R. "Association of nitrogen-fixing microorganisms in the surface of nodules in wild perennial leguminous plants Onobrychis transcaucasica and Onobrychis chorassanica." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.262.
The results of molecular genetic analysis root nodule bacteria wild leguminous plants germinating in the Arid zones Central Asia can penetrate into various nitrogen-fixing microorganisms. Bacteria of plants Onobrychis transcaucasica and Onobrychis chorossanica origin are found bacteria in the class Alphaproteobacteria and some nitrogen-fixing bacteria which we are write were in the class of Betaproteobacteria.
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Krezhova, Dora, Ilko Iliev, and Elisaveta Kirova. "Chlorophyll fluorescence of nitrogen fixing soybean plants (Glycine max L.) under stress conditions." In 2011 5th International Conference on Recent Advances in Space Technologies (RAST). IEEE, 2011. http://dx.doi.org/10.1109/rast.2011.5966818.
Breica Borozan, Aurica, Despina-Maria Bordean, Gabriel Bujanca, Delia Dumbrava, and Sorina Popescu. "CONTROL OF PLANTS OF LOTUS CORNICULATUS L. ON AEROBIC AND ANAEROBIC FREE NITROGEN-FIXING BACTERIA." In GEOLINKS International Conference. SAIMA Consult Ltd, 2020. http://dx.doi.org/10.32008/geolinks2020/b1/v2/07.
The free nitrogen fixing bacteria are able to mobilize important soil nutrients, transforming through biological processes the unusable molecular nitrogen into an active form and to improve soil fertility, influence many aspects of plant health and ensure their growth, showing interest for the scientific world and farmers. But, on the other hand, this bacterial segment may be influenced by the edaphic factors and the interconnection with the plants, the growth phase, the physiological state and the root system of the plant, by the root exudates, which demonstrates the importance of the bacterial community monitoring from the area of plants influence throughout the growing periods The aim of this study was to evaluate the influence of the age of the plants used as biofertilizer and soil moisture on the free nitrogen fixing bacterial communities (the genera Azotobacter and Clostridium) associated with the roots of the perennial plants of Lotus corniculatus L. There were two zones of interest, namely the area of influence of the roots of the plants (rhizosphere) but also the more distant area (edaphosphere). For the study of aerobic and anaerobic free nitrogen fixing bacteria soil samples were taken together with adjacent plants of Lotus corniculatus L. The experimental variants were located in the western part of Romania, the plants being cultivated on the same soil type, but on different plots, that were in the I-IV years of culture. The influence of Lotus corniculatus L. plants on the free nitrogen fixing bacteria has been reported in control experimental variants. Isolation and study of this bacterial group from the 8 experimental variants was performed on a specific mineral medium, favorable for the growth of the two bacterial genera. The results were evaluated after 5 and 10 days of incubation. Between the two assesments there were no noticeable differences in the nitrogen fixing bacterial community, except for the stimulatory effect observed in the control vatiant and rhizosphere of the first year culture. The plants influence on aerobic and anaerobic free nitrogen fixing bacteria was obvious in the II and IV years of the Lotus corniculatus L. culture, compared to the 76 control variants and varies substantially depending on the age of the plant. In most analyzed soil samples, both bacterial genera, Azotobacter and Clostridium were present, confirming the known ecological relation of unilateral advantage or passive stimulation of the aerobic bacteria compared to the anaerobic clostridia. Exceptions were the samples from the cultures of the first year (rhizosphere and control), but also the rhizosphere from the culture of the year II, where only anaerobic nitrogen fixing bacteria were detected. Our results suggested that plant-soil interactions exert control over the bacteria being studied.
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Iliev, Ilko Ts, Dora D. Krezhova, Tony K. Yanev, Elisaveta B. Kirova, Angelos Angelopoulos, and Takis Fildisis. "Effects of Salinity on Chlorophyll Fluorescence of Nitrogen Fixing Soybean Plants (Glycine max L.)." In ORGANIZED BY THE HELLENIC PHYSICAL SOCIETY WITH THE COOPERATION OF THE PHYSICS DEPARTMENTS OF GREEK UNIVERSITIES: 7th International Conference of the Balkan Physical Union. AIP, 2010. http://dx.doi.org/10.1063/1.3322519.
Muntyan, V. S., A. N. Muntyan, B. V. Simarov, and M. L. Roumiantseva. "Phylogenetic analysis of vertically and horizontally acquired genes responsible for salt tolerance in nitrogen-fixing alphaproteobacteria." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.176.
The analysis of salt tolerance genes in the genomes of N-fixing α-proteobacteria showed that different groups of genes could be multicopied, located on several replicons, and horizontally and / or vertically transferred and acquired.
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Rudaya, E. S., and E. A. Dolgikh. "Production and analysis of tomato Solanum lycopersicum composite plants carrying the genes of pea Pisum sativum receptors to rhizobial signaling molecules." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.208.
Tabalenkova, G. N., and T. K. Golovko. "Positive effect of application of "Rizoagrin" on the barley production process in the North." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.243.
Ananyeva, I. N., Z. M. Aleschenkova, P. V. Rybaltovskaya, and M. A. Chindareva. "Study of the population dynamics of endophytic bacteria introduced into winter wheat." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.024.
Reports on the topic "Nitrogen fixing plants (Australia)":
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Ya, T. Nature's Bounty Nitrogen-Fixing Plants for Mountain Farmers. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2004. http://dx.doi.org/10.53055/icimod.419.
