Articles de revues : « A. donax »

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Khnzhaev, V. U., et S. F. Aripova. « Alkaloids ofArundo donax ». Chemistry of Natural Compounds 31, n^o 2 (mars 1995) : 277. http://dx.doi.org/10.1007/bf01170232.

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Khuzhaev, V. U., et S. F. Aripova. « Alkaloids ofArundo donax ». Chemistry of Natural Compounds 34, n^o 1 (janvier 1998) : 108–9. http://dx.doi.org/10.1007/bf02249703.

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Stover, Jiana, Edward Keller, Tom Dudley et Eddy Langendoen. « Fluvial Geomorphology, Root Distribution, and Tensile Strength of the Invasive Giant Reed, Arundo Donax and Its Role on Stream Bank Stability in the Santa Clara River, Southern California ». Geosciences 8, n^o 8 (14 août 2018) : 304. http://dx.doi.org/10.3390/geosciences8080304.

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Arundo donax (giant reed) is a large, perennial grass that invades semi-arid riparian systems where it competes with native vegetation and modifies channel geomorphology. For the Santa Clara River, CA, changes in channel width and intensity of braiding over several decades are linked in part to high flow events that remove A. donax. Nevertheless, the area of A. donax at the two study sites increased fivefold over a period of 28 years at one site and fourfold over 15 years at the second site. Effects of A. donax on bank stability are compared to those of a common native riparian tree—Salix laevigata (red willow)—at two sites on the banks and floodplain of the Santa Clara River. There is a significant difference of root density of A. donax compared to S. laevigata and the latter has a higher number of roots per unit area at nearly all depths of the soil profile. Tensile root strength for S. laevigata (for roots of 1–6 mm in diameter) is about five times stronger than for A. donax and adds twice the apparent cohesion to weakly cohesive bank materials than does A. donax (8.6 kPa compared to 3.3 kPa, respectively). Modeling of bank stability for banks of variable height suggests that S. laevigata, as compared to A. donax, increases the factor of safety (FS) by ~60% for banks 1 m high, ~55% for banks 2 m high and ~40% for banks 3 m high. For 3 m high banks, the FS for banks with A. donax is <1. This has geomorphic significance because, in the case of A. donax growing near the water line of alluvial banks, the upper 10–20 cm has a hard, resistant near-surface layer overlying more erodible banks just below the near-surface rhizomal layer. Such banks may be easily undercut during high flow events, resulting in overhanging blocks of soil and A. donax that slump and collapse into the active channel, facilitating lateral bank erosion. Therefore, there is a decrease in the lateral stability of channels if the mixed riparian forest is converted to dominance by A. donax.

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Ria Ashari et Handri Jurya Parmi. « STUDY TENTANG KERAGAMAN DAN KESERAGAMAN KERANG-KERANGAN DI PERAIRAN LABUHAN HAJI KECAMATAN LABUHAN HAJI KABUPATEN LOMBOK TIMUR PROVINSI NUSA TENGGARA BARAT ». Journal Ilmiah Rinjani : Media Informasi Ilmiah Universitas Gunung Rinjani 10, n^o 2 (30 juillet 2022) : 72–82. http://dx.doi.org/10.53952/jir.v10i2.410.

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The researcher aims to find out, namely: 1) The diversity and uniformity of shellfish in Labuhan Haji waters, 2) The habitat of shellfish in Labuhan Haji waters. The method used in this research is an exploratory method. While sampling using line transects (transect), the research made 4 stationsfourat each station made 10 plots each the distance between the plots is 10 m, plot size 2 m2. For taking samples in each plouseing a tool in the form of a mold and a plastic bag after that count the number of shellfish taken in each plot and write down their identification and type of substrate. The results showed that there was a diversity of shellfish species in Labuhan Haji waters, 7 types of shellfish were found, namely (donax trunculus, donax variegates, donax vittatus and donax curneatus, blunt tellin arcopagia and tellin incarnate, mytilus californianus). (Donax Trunculus) is the dominant species as long as the diversity and uniformity of shellfish species are in relatively low conditions. There are 3 types of shellfish substrates, namely sand substrate, muddy sand substrate, and sandy stone substrate. The highest diversity index value of shellfish can be obtained (0.55) at the third station found species (donax trunculus), while the lowest diversity value is found at station II of (0.26) species (donax trunculus) are found. The uniformity index value at each observation location shows that the range of this index value ranges from (0.10 - 0.16). Keywords: Diversity and Uniformity, shellfish, Waters Abstrak Peneliti bertujuan ingin mengetahui, yaitu : 1) Untuk mengetahui keragaman dan keseragaman kerang-kerangan di Perairan Labuhan Haji, 2) Untuk mengetahui habitat kerang-kerangan di Perairan Labuhan Haji.Metode yang digunakan dalam penelitian ini adalah metode eksploratif. Sedangkanpengambilan sampel dengan menggunakan cara line transek (transect), penelitian membuat ada 4 stasiun disetiap stasiun dibuat 10 plot tiap jarak antara plot adalah 10 m,ukuran plot 2 m2. Untuk pengambilan pengambilan sampel disetiap plot menggunkan alat berupa cetok dan kantong plastik setelah itu menghitung jumlah kerang-kerangan yang diambil disetiap plot dan menulis identifikasinya serta tipe substratnya. Hasil penelitian bahwa terdapat keragaman jenis kerang-kerangan di Perairan Labuhan Haji, ditemukan 7 jenis kerang-kerangan yaitu (donax trunculus, donax variegates, donax vittatus dan donax curneatus, blunt tellin arcopagia dan tellin incarnate, mytilus californianus). (donax Trunculus) merupakan spesies yang mendominasi selama keragaman dan keseragaman jenis kerang-kerangan berada dalam kondisi relatif rendah.Terdapat 3 tipe substrat jenis kerang-kerangan yaitu substrat pasir, substrat pasir berlumpur dan substrat batu berpasir. Nilai indeks keragaman kerang-kerangan tertinggi dapat diperoleh sebesar (0.55) pada stasiun ketiga ditemukan jenis (donax trunculus), Sedangkan nilai keragaman terendah terdapat pada stasiun II sebesar (0.26) ditemukan jenis (donax trunculus),Nilai indeks keseragaman di tiap lokasi pengamatan menunjukkan bahwa kisaran nilai indeks ini berkisar antara (0.10 - 0.16).

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Khuzhaev, V. U., S. F. Aripova et U. A. Abdullaev. « Alkaloids ofArundo donax. IV. donaxanine ? a new pyrrolidine alkaloid fromArundo donax ». Chemistry of Natural Compounds 31, n^o 5 (septembre 1995) : 610–11. http://dx.doi.org/10.1007/bf01164890.

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Canavan, K., I. D. Paterson, M. P. Hill et T. L. Dudley. « Testing the Enemy Release Hypothesis on tall-statured grasses in South Africa, using Arundo donax, Phragmites australis, and Phragmites mauritianus as models ». Bulletin of Entomological Research 109, n^o 3 (17 août 2018) : 287–99. http://dx.doi.org/10.1017/s0007485318000627.

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AbstractThe Enemy Release Hypothesis (ERH) predicts that introduced plant species can escape herbivory and therefore have a competitive advantage over native plants, which are exposed to both generalist and specialist natural enemies. In this study, the ERH was explored using the invasive alien species, Arundo donax and two native tall-statured grasses, the cosmopolitan Phragmites australis and African endemic Phragmites mauritianus in South Africa. It was predicted that A. donax would have reduced species richness of herbivores compared with the native Phragmites spp., that it would be devoid of specialist herbivores and would thus be experiencing enemy escape in the adventive range. The herbivore assemblages were determined from both field surveys and a literature review. The assumptions of the ERH were for the most part not met; 13 herbivores were found on A. donax compared with 17 on P. australis and 20 on P. mauritianus. Arundo donax had two specialist herbivores from its native range, and shared native herbivores with Phragmites spp. Although A. donax had reduced species richness and diversity compared with that found in the native distribution, it has partially re-acquired a herbivore assemblage which is similar to that found on analogous native species. This suggests that enemy release may not fully explain the invasive success of A. donax in South Africa.

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Caparrós, Sebastián, Gil Garrote, José Ariza, Manuel Jesús Díaz et Francisco López. « Xylooligosaccharides Production fromArundo donax ». Journal of Agricultural and Food Chemistry 55, n^o 14 (juillet 2007) : 5536–43. http://dx.doi.org/10.1021/jf063159p.

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Haworth, Matthew, Giovanni Marino, Ezio Riggi, Giovanni Avola, Cecilia Brunetti, Danilo Scordia, Giorgio Testa et al. « The effect of summer drought on the yield of Arundo donax is reduced by the retention of photosynthetic capacity and leaf growth later in the growing season ». Annals of Botany 124, n^o 4 (19 décembre 2018) : 567–79. http://dx.doi.org/10.1093/aob/mcy223.

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Abstract Background and Aims The development of Arundo donax as a biomass crop for use on drought-prone marginal lands in areas with warm to hot climates is constrained by the lack of variation within this species. We investigated the effect of morphological and physiological variation on growth and tolerance to drought under field conditions in three ecotypes of A. donax collected from habitats representing a climate gradient: a pre-desert in Morocco, a semi-arid Mediterranean climate in southern Italy and a warm sub-humid region of central Italy. Methods The three A. donax ecotypes were grown under irrigated and rain-fed conditions in a common garden field trial in a region with a semi-arid Mediterranean climate. Physiological and morphological characteristics, and carbohydrate metabolism of the ecotypes were recorded to establish which traits were associated with yield and/or drought tolerance. Key Results Variation was observed between the A. donax ecotypes. The ecotype from the most arid habitat produced the highest biomass yield. Stem height and the retention of photosynthetic capacity later in the year were key traits associated with differences in biomass yield. The downregulation of photosynthetic capacity was not associated with changes in foliar concentrations of sugars or starch. Rain-fed plants maintained photosynthesis and growth later in the year compared with irrigated plants that began to senescence earlier, thus minimizing the difference in yield. Effective stomatal control prevented excessive water loss, and the emission of isoprene stabilized photosynthetic membranes under drought and heat stress in A. donax plants grown under rain-fed conditions without supplementary irrigation. Conclusions Arundo donax is well adapted to cultivation in drought-prone areas with warm to hot climates. None of the A. donax ecotypes exhibited all of the desired traits consistent with an ‘ideotype’. Breeding or genetic (identification of quantitative trait loci) improvement of A. donax should select ecotypes on the basis of stem morphology and the retention of photosynthetic capacity.

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Narchi, Walter. « On the conservation of the binomen Donax hanleyanus Philippi, 1847 (Bivalvia-Mollusca) ». Boletim de Zoologia 10, n^o 10 (26 octobre 1986) : 305. http://dx.doi.org/10.11606/issn.2526-3358.bolzoo.1986.122359.

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Donax hanleyanus Philippi, 1847 é um bivalve donacídeo que ocorre no litoral brasileiro do Estado do Espírito Santo até o Rio Grande do Sul. Essa espécie, cuja concha é extremamente variável em tamanho, cor e escultura, mantém grandes populações no ambiente instável que são as praias sujeitas a ação de ondas. Morrison em 1971 colocou a espécie na sinonímia de Donax hilairea Guérin, 1832. Narchi em 1975 apresentou à "International Commission on Zoological Nomenclature" uma defesa para a conservação do nome D. hanleyanus. A decisão da Comissão Internacional de Nomenclatura Zoológica foi: colocar o binômio Donax hanleyanus Philippi, 1847 na "Lista Oficial de Nomes Específicos em Zoologia"; o nome hilairea Guérin, 1832 como publicado no binômio Donax hilairea foi colocado no "Índice Oficial de Nomes Específicos Inválidos e Rejeitados em Zoologia".

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Jámbor, Attila, et Áron Török. « The Economics of Arundo donax—A Systematic Literature Review ». Sustainability 11, n^o 15 (5 août 2019) : 4225. http://dx.doi.org/10.3390/su11154225.

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Arundo donax (giant reed) is an herbaceous, perennial and non-food crop producing dry biomass with relatively high yields in many regions and under different climates. Although there exists a large amount of literature on A. donax, the economic aspects are somehow neglected or are very much limited in most papers. Therefore, the aim of this paper is to analyse the economics of A. donax by applying a systematic literature review of the field. Our sample consists of 68 relevant studies out of the 6009 identified, classified into four groups: Bioenergy, agronomy, invasiveness and phytoremediation. Most papers were focusing on Italy and on the Mediterranean region and were written on the bioenergy aspect. Most studies suggest that A. donax has a relatively high energy balance and yields, high investment but low maintenance costs and high potentials for phytoremediation of contaminated soils. However, a certain section of the literature, mainly based on US experience, shows that giant reed should be produced with care due to its invasiveness hazard. On the whole, A. donax was found to have high economic potentials for biomass production in marginal as well as disadvantageous lands operated by small farmers in the Mediterranean region.

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Teixeira, S. M. P., C. S. A. M. Maduro Dias, C. F. M. Vouzela, J. S. Madruga et A. E. S. Borba. « Nutritional valorisation of cane (Arundo donax) by treatment with sodium hydroxide ». South African Journal of Animal Science 51, n^o 4 (16 septembre 2021) : 437–43. http://dx.doi.org/10.4314/sajas.v51i4.3.

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This study evaluated the effects of sodium hydroxide (NaOH) treatment on the nutritional value of Arundo donax (A. donax). Its ultimate goal was to develop an environmentally friendly animal feed alternative that could be produced sustainably while combatting the spread of A. donax. Plants were collected and dried at 60 °C in an oven with controlled air circulation to determine the dry matter (DM) content. The dry plant material was then sprinkled with an NaOH solution of 2%, 4%, 6%, or 8% and placed in leak-proof containers for four weeks. The chemical and in vitro digestibility properties of treated and untreated A. donax samples were analysed in triplicate. The treatment led to significant decreases in neutral detergent fibre (NDF) from 81.06% DM to 69.39% DM, acid detergent fibre (ADF) from 46.99% DM to 43.19% DM, and ether extract (EE) from 2.06% DM to 1.39% DM, in the untreated samples compared with those treated with 8% NaOH, respectively. In addition, DM digestibility increased from 24.61% to 33.78%, ash content from 11.75% DM to 19.92% DM, and ADL from 7.43% M to 15.38% DM. Thus, treatment of A. donax with an 8% solution of NaOH concentration improved its nutritional value.

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Cui, Jun, et Liang Wang. « Laboratory Study on the Performance of Domestic Wastewater Biofilters Made of Arundo Donax L. » Applied Mechanics and Materials 295-298 (février 2013) : 1104–9. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1104.

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Filter systems have the ability to remove pollutants from wastewater. However, to increase the treatment efficiency, the filter made of plants has been recommended which has been called the biofilter. The objective of this study was to examine the performance of biofilter made by Arundo donax L. on domestic wastewater treatment. In this paper, a laboratory study using vertical flow constructed wetlands planted with Arundo donax L. and without any other plants were conducted. For the biofilter planted in Arundo donax L., the removal of TN, NH4+-N and TP 89%, 93% and 98% respectively. In particular, we also got the nitrogen and phosphorus content of different parts of Arundo donax L. which was divided into root, stem and leaves. For the total nitrogen content in the plant, there is a quantitive relationship of stem<root<leaves. For the total phosphorus content, the relationship is root<stem<leaves quantitatively. Whilst, compared with the total removal of nitrogen and phosphorus, the removal via plant absorption accounts for 22% and 29% separately. The results of this research suggest that Arundo donax L. with large leaves could be used as a main plant in the domestic wastewater biofilter.

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Alyani, Dianah Filzan, et Reni Ambarwati. « Variasi Morfologi dan Kemelimpahan Donax faba (Bivalvia : Donacidae) di Pantai Tengket Bangkalan Madura ». Biotropic : The Journal of Tropical Biology 2, n^o 2 (31 août 2018) : 73–84. http://dx.doi.org/10.29080/biotropic.2018.2.2.73-84.

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Donax clams are important in taxonomic studies because they have many variations. The purposes of this study were to evaluate the morphological variations and the abundance of Donax clams; to analyze the habitat profiles of Donax clams at Tengket Bangkalan Madura Beach. The sample of clams were taken by belt transect method. The habitat profile was studied based on the substrate type, water acidity, substrate acidity, salinity and the temperature of water. The data was analyzed descriptive-quantitatively. The results showed that in Beach Tengket Madura found Donax faba which had 15 types. The most abundant variety was creamy with brown spots on the ventral and purplish white with brown spots. The profile of the habitat of D. faba in Tengket Beach was medium sandy substrate with water pH 6.7 and substrate pH 7, salinity 32.6-32.8‰, and temperature 32ᵒC.

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Thornby, David, David Spencer, Jim Hanan et Anna Sher. « L-DONAX, a growth model of the invasive weed species, Arundo donax L. » Aquatic Botany 87, n^o 4 (novembre 2007) : 275–84. http://dx.doi.org/10.1016/j.aquabot.2007.06.012.

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Danelli, Tommaso, Alessio Sepulcri, Giacomo Masetti, Federico Colombo, Stefano Sangiorgio, Elena Cassani, Simone Anelli, Fabrizio Adani et Roberto Pilu. « Arundo donax L. Biomass Production in a Polluted Area : Effects of Two Harvest Timings on Heavy Metals Uptake ». Applied Sciences 11, n^o 3 (27 janvier 2021) : 1147. http://dx.doi.org/10.3390/app11031147.

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Within the framework of energy biomass production, Arundo donax L. is very promising for its capability to grow on marginal lands with high yields. This potential can be realized in unused polluted areas where the energy production can be coupled with phytoremediation, and harvested biomass represents a resource and a means to remove contaminants from the soil. Two main processes are considered to evaluate A. donax L. biomass as an energy crop, determined by the timing of harvest: anaerobic digestion with fresh biomass before winter and combustion (e.g., pyrolysis and gasification) of dry canes in late winter. The aim of this work was to evaluate the use of A. donax L. in an area polluted by heavy metals for phytoextraction and energy production at two different harvest times (October and February). For that purpose, we established in polluted area in northern Italy (Caffaro area, Brescia) an experimental field of A. donax, and included switchgrass (Panicum virgatum L.) and mixed meadow species as controls. The results obtained by ICP-MS analysis performed on harvested biomasses highlighted a differential uptake of heavy metals depending on harvest time. In particular, considering the yield in the third year, A. donax was able to remove from the soil 3.87 kg ha−1 of Zn, 2.09 kg ha−1 of Cu and 0.007 kg ha−1 of Cd when harvested in October. Production of A. donax L. for anaerobic digestion or combustion in polluted areas represents a potential solution for both energy production and phytoextraction of heavy metals, in particular Cu, Zn and Cd.

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Brilli, Federico, Sara Pignattelli, Rita Baraldi, Luisa Neri, Susanna Pollastri, Cristina Gonnelli, Alessio Giovannelli, Francesco Loreto et Claudia Cocozza. « Root Exposure to 5-Aminolevulinic Acid (ALA) Affects Leaf Element Accumulation, Isoprene Emission, Phytohormonal Balance, and Photosynthesis of Salt-Stressed Arundo donax ». International Journal of Molecular Sciences 23, n^o 8 (13 avril 2022) : 4311. http://dx.doi.org/10.3390/ijms23084311.

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Arundo donax has been recognized as a promising crop for biomass production on marginal lands due to its superior productivity and stress tolerance. However, salt stress negatively impacts A. donax growth and photosynthesis. In this study, we tested whether the tolerance of A. donax to salinity stress can be enhanced by the addition of 5-aminolevulinic acid (ALA), a known promoter of plant growth and abiotic stress tolerance. Our results indicated that root exposure to ALA increased the ALA levels in leaves along the A. donax plant profile. ALA enhanced Na+ accumulation in the roots of salt-stressed plants and, at the same time, lowered Na+ concentration in leaves, while a reduced callose amount was found in the root tissue. ALA also improved the photosynthetic performance of salt-stressed apical leaves by stimulating stomatal opening and preventing an increase in the ratio between abscisic acid (ABA) and indol-3-acetic acid (IAA), without affecting leaf methanol emission and plant growth. Supply of ALA to the roots reduced isoprene fluxes from leaves of non-stressed plants, while it sustained isoprene fluxes along the profile of salt-stressed A. donax. Thus, ALA likely interacted with the methylerythritol 4-phosphate (MEP) pathway and modulate the synthesis of either ABA or isoprene under stressful conditions. Overall, our study highlights the effectiveness of ALA supply through soil fertirrigation in preserving the young apical developing leaves from the detrimental effects of salt stress, thus helping of A. donax to cope with salinity and favoring the recovery of the whole plant once the stress is removed.

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Touchell, Darren H., Thomas G. Ranney, Dilip R. Panthee, Ronald J. Gehl et Alexander Krings. « Genetic Diversity, Cytogenetics, and Biomass Yields among Taxa of Giant Reeds (Arundo Species) ». Journal of the American Society for Horticultural Science 141, n^o 3 (mai 2016) : 256–63. http://dx.doi.org/10.21273/jashs.141.3.256.

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Genetic diversity and cytogenetics of 31 accessions of Arundo L., collected from North America and South Asia, were characterized using 20 intersimple sequence repeat (ISSR) markers, flow cytometry, and cytology. In addition, field trials of 23 Arundo donax L. accessions were established in 2011 and harvested in 2012 to 2013 to assess annual biomass yields. Cluster analysis, based on Jaccard’s similarity coefficient method, clearly differentiated Arundo formasana Hack. from A. donax and a third unidentified Arundo taxon. Arundo donax further contained two subgroups representing North American (naturalized and cultivated) and South Asian collections. Within each A. donax subgroup, genetic distances were very low (0.03 for North America and 0.07 for South Asia). Principle coordinate analysis further supported distinct clusters. Relative genome sizes were determined using Pisum sativum L. as the reference genome and 6-diamidino-2-phenylindole (DAPI) fluorochrome. Chromosome numbers (2n), ploidy levels, and 2C relative genome sizes ranged from ≈62 to 105, near 12x to near 18x, and 2.78 to 4.13 pg, respectively, and were similar within each taxa/subgroup. While there was a low level of genetic variability among A. donax accession, dry biomass yields varied significantly ranging from 6.5 to 65 Mg·ha−1 per year for the third growing season.

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Lu, Min, Fei Fei Pei, Xiu Kui Song et Zhen Guo. « Study on the Purification Effects of Constructed Wetland Plants in TP Disposal in Living Wastewater ». Applied Mechanics and Materials 137 (octobre 2011) : 357–61. http://dx.doi.org/10.4028/www.scientific.net/amm.137.357.

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The study on the species selection of constructed wetland plants and the purification effects of the constructed wetland plants is the key to ecological wastewater treatment technology. The purification effects of different residence time of wastewater, different constructed wetland plants and their synergistic effect are studied in TP disposal in living wastewater. The results show that the best plant combination in purifying TP is that of Arundo donax, Typha orientalis and Canna generalis, followed by that of Phragmites communis, Arundo donax and Canna generalis. The best plant species in purifying TP is Canna generalis, followed by Arundo donax.

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Khuzhaev, V. U., I. Zh Zhalolov, M. G. Levkovich, S. F. Aripova et A. S. Shashkov. « Alkaloids of Arundo donax L. » Russian Chemical Bulletin 53, n^o 8 (août 2004) : 1765–67. http://dx.doi.org/10.1007/s11172-005-0033-x.

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Spencer, David F., Pui-Sze Liow, Wai Ki Chan, Gregory G. Ksander et Kurt D. Getsinger. « Estimating Arundo donax shoot biomass ». Aquatic Botany 84, n^o 3 (avril 2006) : 272–76. http://dx.doi.org/10.1016/j.aquabot.2005.11.004.

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Toscano, Giuseppe, Gaetano Zuccaro, Anna Corsini, Sarah Zecchin et Lucia Cavalca. « Dark Fermentation of Arundo donax : Characterization of the Anaerobic Microbial Consortium ». Energies 16, n^o 4 (11 février 2023) : 1813. http://dx.doi.org/10.3390/en16041813.

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The dark fermentation of lignocellulose hydrolysates is a promising process for the production of hydrogen from renewable sources. Nevertheless, hydrogen yields are often lower than those obtained from other carbohydrate sources due to the presence of microbial growth inhibitors in lignocellulose hydrolysates. In this study, a microbial consortium for the production of hydrogen by dark fermentation has been obtained from a wild methanogenic sludge by means of thermal treatments. The consortium has been initially acclimated to a glucose-based medium and then used as inoculum for the fermentation of Arundo donax hydrolysates. Hydrogen yields obtained from fermentation of A. donax hydrolysates were lower than those obtained from glucose fermentation using the same inoculum (0.30 ± 0.05 versus 1.11 ± 0.06 mol of H2 per mol of glucose equivalents). The hydrogen-producing bacteria belonged mainly to the Enterobacteriaceae family in cultures growing on glucose and to Clostridium in those growing on A. donax hydrolysate. In the latter cultures, Lactobacillus outcompeted Enterobacteriaceae, although Clostridium also increased. Lactobacillus outgrowth could account for the lower yields observed in cultures growing on A. donax hydrolysate.

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Lalopua, Vonda M. N., IMELDA E. K. SAVITRI et ODE F. ZAINUDIN. « KOMPOSISI ASAM LEMAK KERANG BUAH (Donax variabillis) PREPARASI DENGAN PEMANASAN UNTUK MELEPAS CANGKANG ». TECHNO-FISH 4, n^o 2 (23 décembre 2020) : 106–21. http://dx.doi.org/10.25139/tf.v4i2.3332.

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Kerang “Buah” (Donax variabillis.) merupakan salah satu biota laut yang banyak dikonsumsi terutama karena kandungan proteinnya yang tinggi. Kerang “Buah” biasanya diolah dengan cara kerang dilepas dari cangkang dengan pisau atau dipanaskan, setelah itu direbus dan di tumis dengan bumbu-bumbu seperti bawang putih bawang merah dan caberawit[TR1] . Kerang dimanfaatkan oleh masyarakat sebagai bahan makanan sudah cukup lama namun kandungan gizi terutama perubahan kandungan lemak dan komposisi asam lemak akibat penanganan kerang belum ada penelitian serta informasinya. Penelitian bertujuan untuk membandingkan kandungan lemak dan profil asam lemak kerang “Buah” (Donax variabillis.) perlakuan pelepasan cangjang dengan dipanaskan dan tanpa dipanaskan. Metode penelitian yang digunakan adalah eksperimen dan dilakukan analisa kandungan lemak dan profil asam lemak kerang. Hasil penelitian menunjukkan bahwa kandungan lemak kerang buah ( Donax variabilis ) perlakuan dipanaskan meningkat sedangkan kadar air menuru. Kandungan asam lemak daging kerang buah ( Donax variabilis ) terdeteksi 24 jenis asam lemak yang terdiri dari dari 10 asam lemak jenuh (Saturated Fatty Acid/SAFA), 5 asam lemak tak jenuh tunggal ( Monounsauturated Fatty Acid/MUFA) dan 9 asam lemak jenuh jamak (Polysaturated Fatty Acid/PUFA). Kandungan asam lemak jenuh (SAFA) menurun demikian pula asam lemak omega-3, EPA dan DHA menurun tetapi asam lemak jenuh tunggal (MUFA) meningkat dengan perlakuan dipanaskan.[TR2]

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Yıldırım, Pınar, Mine Çardak, Gülen Türker, Serhat Çolakoğlu et Hasan Basri Ormancı. « Determination of Free Radical Scavenging Activity in Some Economic Bivalve Species ». International Journal of Forest, Animal And Fisheries Research 6, n^o 3 (2022) : 22–27. http://dx.doi.org/10.22161/ijfaf.6.3.4.

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In this study, free radical scavenging activity, alpha tocopherol and total carotenoid contents of extracts of Mytilus galloprovincialis, Ruditapes philipinarum, Donax trunculus and Chamelea gallina bivalve species collected from Denizkent in the Marmara Sea are determined. As a result of the monthly samplings, the amount of alpha tocopherol is quite high in all species, whereas the total amount of carotenoids is highest in Donax trunculus (2435 µg/g), then in Mytilus galloprovincialis (2189.6 µg/g), and in the other two species parallel results are obtained. When the free radical scavenging activity is evaluated, on average, Ruditapes philipinarum (22.8%) is the highest, Mytilus galloprovincialis (16.75%) and Chamelea gallina (17.98%) are close to each other, 11% in Donax trunculus, it has been determined that 85. In addition, other parameters obtained in this study were examined by considering statistical evaluations

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Lu, Min, Gong Sheng Liu, Dong He Li, Wen Feng Kang, Jie Zhao, Ke Ke Li, Da Li et Xue Ming Zhao. « Study on the Effects of Wastewater Duress on Chlorophyll Content of 4 Species Wetland Plants ». Advanced Materials Research 1010-1012 (août 2014) : 809–12. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.809.

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The research which is the species selection of constructed wetland plants and the resistance of the plants is the key to ecological wastewater treatment technology. This paper studies the change of chlorophyll content in 4 wetland plants (Phragmites communis, Typha orientalis, Arundo donax and Canna generalis) in different wastewater duress time. The results show: chlorophyll contents in Canna generalis and Arundo donax have less change, and their anti-stress capability are stronger.

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Holzapfel, Klaus. « Arundo Donax Sive Mauritanica Sive Mediterranea ». Zeitschrift für Klassische Homöopathie 53, n^o 04 (décembre 2009) : 201–7. http://dx.doi.org/10.1055/s-0029-1242541.

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Miles, D. Howard, Kwanjai Tunsuwan, Vallapa Chittawong, Udom Kokpol, M. Iqbal Choudhary et Jon Clardy. « Boll weevil antifeedants from Arundo donax ». Phytochemistry 34, n^o 5 (novembre 1993) : 1277–79. http://dx.doi.org/10.1016/0031-9422(91)80015-s.

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Ocaña, Frank A., et Alejandro Fernández. « MORFOMETRÍA DE LA CONCHA DE DONAX DENTICULATUS Y DONAX STRIATUS DE DOS PLAYAS DE CUBA ORIENTAL ». Revista Ciencias Marinas y Costeras 3 (31 décembre 2011) : 67. http://dx.doi.org/10.15359/revmar.3.5.

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Se han realizado estudios sobre morfología y ecología de Donax striatus y D. denticulatus en playas del Caribe, sin embargo, ninguna investigación ha abordado aspectos sobre morfometría en vistas de aplicar esta información para establecer pautas para la explotación de este recurso. Los objetivos de este trabajo son cuantificar las relaciones entre las variables morfométricas, así como verificar si el Indicador de Estabilización de la Forma (IEF) puede ser útil para determinar la talla mínima de captura para estas dos especies. D. striatus alcanza mayor tamaño que D. denticulatus. En todos los casos, la correlación entre las variables morfométricas es altamente significativa. En D. striatus se puede discernir fácilmente que ocurre una estabilización de la forma a una longitud de 15.48 mm, sin embargo, para D. denticulatus no se puede diferenciar con claridad un punto de inflexión en las curvas de los cocientes entre las medidas morfométricas. Los resultados no parecen ser concluyentes en cuanto a la utilización de IEF como una medida para proponer pautas de manejo para las pesquerías de las especies de Donax Se sugiere que la longitud mínima de captura de D. striatus y D. denticulatus sea establecida en 20 mm, con el fin de permitir que los individuos se hayan reproducido al menos una vez en su ciclo de vida. ABSTRACT Studies have been conducted on the morphology and ecology of Donax striatus and D. denticulatus in the Caribbean beaches. However, no investigation has been focused on their morphometry as to apply this information to determine a guideline for the exploitation of this resource. The objective of this paper is to quantify the relationships between morphometric variables and verify whether the Shell Shape Stabilization Indicator (IEF, Spanish acronym) is useful to determine the minimum size of catch for the two species. D. striatus is larger than D. denticulatus. In all cases, correlation between the morphometric variables is highly significant. In D. Striatus, shell shape stabilization is visible to occur at 15.48 mm in length; however, for D. denticulatus an inflexion point is not easily observed in the curves of the ratios between the morphometric measures. Results are not conclusive to propose the use of IEF as a guideline for fishery of Donax species. The minimum size of catch of D. striatus and D. denticulatus suggested should be established at 20 mm to allow individuals to reproduce at least once during their life cycle.

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Neuberger-Cywiak, L., Y. Achituv et L. Mizrahi. « The ecology of Donax trunculus Linnaeus and Donax semistriatus Poli from the Mediterranean coast of Israel ». Journal of Experimental Marine Biology and Ecology 134, n^o 3 (janvier 1989) : 203–20. http://dx.doi.org/10.1016/0022-0981(89)90070-1.

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Di Fidio, Nicola, Anna Maria Raspolli Galletti, Sara Fulignati, Domenico Licursi, Federico Liuzzi, Isabella De Bari et Claudia Antonetti. « Multi-Step Exploitation of Raw Arundo donax L. for the Selective Synthesis of Second-Generation Sugars by Chemical and Biological Route ». Catalysts 10, n^o 1 (5 janvier 2020) : 79. http://dx.doi.org/10.3390/catal10010079.

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Lignocellulosic biomass represents one of the most important feedstocks for future biorefineries, being a precursor of valuable bio-products, obtainable through both chemical and biological conversion routes. Lignocellulosic biomass has a complex matrix, which requires the careful development of multi-step approaches for its complete exploitation to value-added compounds. Based on this perspective, the present work focuses on the valorization of hemicellulose and cellulose fractionsof giant reed (Arundo donax L.) to give second-generation sugars, minimizing the formation of reaction by-products. The conversion of hemicellulose to xylose was undertaken in the presence of the heterogeneous acid catalyst Amberlyst-70 under microwave irradiation. The effect of the main reaction parameters, such as temperature, reaction time, catalyst, and biomass loadings on sugars yield was studied, developing a high gravity approach. Under the optimised reaction conditions (17 wt% Arundo donax L. loading, 160 °C, Amberlyst-70/Arundo donax L. weight ratio 0.2 wt/wt), the xylose yield was 96.3 mol%. In the second step, the cellulose-rich solid residue was exploited through the chemical or enzymatic route, obtaining glucose yields of 32.5 and 56.2 mol%, respectively. This work proves the efficiency of this innovative combination of chemical and biological catalytic approaches, for the selective conversion of hemicellulose and cellulose fractions of Arundo donax L. to versatile platform products.

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Ristorini, Martina, Maria Luisa Astolfi, Maria Agostina Frezzini, Silvia Canepari et Lorenzo Massimi. « Evaluation of the Efficiency of Arundo donax L. Leaves as Biomonitors for Atmospheric Element Concentrations in an Urban and Industrial Area of Central Italy ». Atmosphere 11, n^o 3 (26 février 2020) : 226. http://dx.doi.org/10.3390/atmos11030226.

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Washed and unwashed Arundo donax L. (A. donax) leaves were analyzed for elements, and results were compared with element concentrations detected in river water and particulate matter (PM) Samples were collected along a river in an urban and industrial hot spot of Central Italy, where element concentrations show relevant spatial gradients both in air and river water. The aim of this study is to identify the role of the two environmental matrices on leaves composition. Element concentrations of washed and unwashed leaves were compared to differentiate between the superficial deposition and the uptake into leaf tissues of elements. Water-soluble and -insoluble element concentrations were measured in PM10 samples collected on membrane filters by using innovative high spatial resolution samplers. The comparison among leaf and atmospheric concentrations of PM10 elements showed a similar trend for Ni, Mo, Cr, Ti, and Fe, which are reliable tracers of the PM10 contribution by steel plant and vehicular traffic. Soluble species appeared to be mainly bounded into leaf tissues, while insoluble species were deposited on their surface. On the other hand, element concentrations detected in washed A. donax leaves were poorly correlated with those measured in river water samples. The obtained results proved that A. donax leaves can be used as reliable biomonitors for the evaluation of the atmospheric concentrations of some PM10 elemental components.

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Krička, Tajana, Ana Matin, Nikola Bilandžija, Vanja Jurišić, Alan Antonović, Neven Voća et Mateja Grubor. « Biomass valorisation of Arundo donax L., Miscanthus × giganteus and Sida hermaphrodita for biofuel production ». International Agrophysics 31, n^o 4 (1 octobre 2017) : 575–81. http://dx.doi.org/10.1515/intag-2016-0085.

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Abstract In the context of the growing demand for biomass, which is being encouraged by the EU directives on the promotion of the use of renewable energy, recent investigations have been increasingly focused on fast-growing energy crops. The aim of this study was to investigate the energy properties of three types of agricultural energy crops: Arundo donax L., Miscanthus × giganteus and Sida hermaphrodita. This investigation looked into the content of non-combustible and combustible matter, higher and lower heating values, lignocellulose content, and biomass macro-elements. The results indicate that the energy values of these crops are comparable, while their lignocellulose content shows significant variations. Thus, Arundo donax L. can best be utilised as solid biofuel due to its highest lignin content, while Miscanthus × giganteus and Sida hermaphrodita L. can be used for both liquid and solid biofuels production. As far as Arundo donax L. is concerned, a higher ash level should be taken into consideration.

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NIISSALO, MATTI A., GILLIAN S. KHEW, EDWARD L. WEBB et JANA LEONG-ŠKORNIČKOVÁ. « Notes on Singaporean native Zingiberales II : revision of Marantaceae, with a new generic record and notes on naturalised and commonly cultivated exotic species ». Phytotaxa 289, n^o 3 (29 décembre 2016) : 201. http://dx.doi.org/10.11646/phytotaxa.289.3.1.

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An illustrated revision of Marantaceae in Singapore with an identification key and proposed national IUCN Red List assessments is presented here. In total three genera and four species are considered native to Singapore (Donax canniformis, Phrynium hirtum, Stachyphrynium parvum, and Stachyphrynium latifolium) representing 33 % of diversity currently known to occur in Peninsular Malaysia. Although the genus Phrynium Willdenow (1797: 1) was previously reported for Singapore based on the presence of P. villosulum, we show that this species is, contrary to previous accounts, not native but introduced. Newly reported Phrynium hirtum therefore represents a new native generic record for the country. We are changing the status of Schumannianthus benthamianus, previously considered native, to cultivated, as there are no historic or recent collections of this species. Non-native species commonly employed in Singapore streetscapes and parks are also briefly discussed and illustrated in this paper. Actoplanes ridleyi, Donax grandis, Donax parviflora, Maranta tonchat, Phrynium latifolium and Phrynium sumatranum are lectotypified and Maranta arundinacea Blanco (non L.) is neotypified.

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Shcherbakova, T. O. « Features of seasonal growth of Arundo donax var. versicolor Mill. (Stokes) in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine ». Plant varieties studying and protection 17, n^o 3 (30 septembre 2021) : 175–82. http://dx.doi.org/10.21498/2518-1017.17.3.2021.242945.

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Purpose. To define of phenological and morphological features of A. donax var. versicolor growth during the introduction in the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine (NBG). Methods. The object of research was the plants of A. donax var. versicolor in the collection of ornamental grasses of the department of flower and ornamental plants of NBG. The plants were grown on a sunny experimental area during 2014–2020. Since under NBG conditions, A. donax var. versicolor did not enter the flowering phase, the beginning of the phases of spring regrowth, leaf unfolding, and the end of the growing season were recorded. Morphometric parameters and shoot-forming ability were investigated for 3–5 years of cultivation. Results. The beginning and duration of the phases of shoot spring regrowth and the unfolding of leaves of A. donax var. versicolor as well as their dependence on the sum of effective temperatures was established. Thus, spring regrowth begins with renewal buds on May 11 ± 5 days at the effective temperature sums of 226.6 ± 19.7 °С. The phase of leaf development in plants occurred on May 20 ± 7 days. The effective temperature sum at the beginning of this phase was 309.45 ± 11.66 °C. The productivity of shoot formation (1.6 ± 0.3 shoot per plant) under the conditions of introduction was determined. Conclusions. A. donax var. versicolor plants did not have a full cycle of seasonal development in the conditions of the NBG. Plants formed vegetative monocyclic shoots 240–260 cm tall. The duration of their vegetation was 182–189 days. The optimal period for the growth of the ground mass of plants fell on July-August. During this period, the leaves were quickly formed, the number of which was 28.8 ± 6.68 on the shoot. The correlation between the rate of accumulation of effective temperatures and the rate of regrowth of plant shoots was recorded.

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Umroh, Umroh, Suarman Suarman et Kurniawan Kurniawan. « KELIMPAHAN DAN POLA SEBARAN REMIS Donax sp. DI PANTAI BATU BEDAUN DAN PANTAI BERIGA BANGKA BELITUNG ». Journal of Aquatropica Asia 4, n^o 1 (7 avril 2020) : 26–32. http://dx.doi.org/10.33019/aquatropica.v4i1.1684.

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Penelitian untuk mengetahui kelimpahan dan pola distribusi Remis (Donax sp) di Pantai Batu Bedaun dan Pantai Beriga Provinsi Kepulauan Bangka Belitung pada Bulan Maret 2017. Penentuan lokasi pengambilan sampel dilakukan dengan metode Purposive Sampling. Pengambilan sampel dilakukan pada 2 lokasi dan masing-masing 3 stasiun dengan 4 kali ulangan. Parameter fisika dan kimia yang diukur meliputi: suhu, salinitas, kelembaban, pH, substrat dasar perairan, sedangkan pengukuran substrat dasar perairan dilakukan di Laboratorium Manajemen Sumberdaya Perairan, Fakultas FPPB (Pertanian, Perikanan dan Biologi) Universitas Bangka Belitung. Hasil penelitian menunjukkan bahwa kelimpahan populasi Remis (Donax sp) di Pantai Batu Bedaun Kecamatan Sungailiat berkisar antara 6 - 16 ind/m2. Analisis kelimpahan secara umum menunjukkan tingkat kelimpahan yang rendah, sedangkan di Pantai Beriga Kecamatan Lubuk Besar berkisar antara 151 - 194 ind/m2 dan kelimpahan secara umum menunjukkan tingkat kelimpahan yang cukup tinggi. Analisis indeks Morisita secara umum menunjukkan Pola sebaran Remis (Donax sp) di Pantai Batu Bedaun Kecamatan Sungailiat termasuk kategori merata (Id < 1), sedangkan di Pantai Beriga Kecamatan Lubuk Besar termasuk kategori mengelompok (Id > 1).

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Rotunno, Silvia, Claudia Cocozza, Vitantonio Pantaleo, Paola Leonetti, Loris Bertoldi, Giorgio Valle, Gian Paolo Accotto, Francesco Loreto, Gabriella Stefania Scippa et Laura Miozzi. « Identification of Known and Novel Arundo donax L. MicroRNAs and Their Targets Using High-Throughput Sequencing and Degradome Analysis ». Life 12, n^o 5 (27 avril 2022) : 651. http://dx.doi.org/10.3390/life12050651.

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MicroRNAs (miRNAs) are a class of non-coding molecules involved in the regulation of a variety of biological processes. They have been identified and characterized in several plant species, but only limited data are available for Arundo donax L., one of the most promising bioenergy crops. Here we identified, for the first time, A. donax conserved and novel miRNAs together with their targets, through a combined analysis of high-throughput sequencing of small RNAs, transcriptome and degradome data. A total of 134 conserved miRNAs, belonging to 45 families, and 27 novel miRNA candidates were identified, along with the corresponding primary and precursor miRNA sequences. A total of 96 targets, 69 for known miRNAs and 27 for novel miRNA candidates, were also identified by degradome analysis and selected slice sites were validated by 5′-RACE. The identified set of conserved and novel candidate miRNAs, together with their targets, extends our knowledge about miRNAs in monocots and pave the way to further investigations on miRNAs-mediated regulatory processes in A. donax, Poaceae and other bioenergy crops.

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BOOSE et HOLT. « Environmental effects on asexual reproduction inArundo donax ». Weed Research 39, n^o 2 (avril 1999) : 117–27. http://dx.doi.org/10.1046/j.1365-3180.1999.00129.x.

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San Martín, Carolina, Jennifer A. Gourlie et Judit Barroso. « Control of Volunteer Giant Reed (Arundo donax) ». Invasive Plant Science and Management 12, n^o 1 (13 février 2019) : 43–50. http://dx.doi.org/10.1017/inp.2018.36.

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AbstractGiant reed (Arundo donaxL.) has recently shown great potential as a feedstock for the bioenergy industry. However, beforeA. donaxcan be grown commercially, due to its invasive nature, management strategies must be developed to reduce the risk of unintended spread. This research was conducted in northeastern Oregon (USA) during two growing seasons. Nine control strategies were evaluated in a field that previously hadA. donaxas a crop. The control strategies included mechanical practices (stem cutting and rhizome digging), physical practices (covering with an opaque tarp), chemical practices (glyphosate applications at different rates and timings), and a combination of these practices. Spring samplings ofA. donaxregrowth in the season following treatments indicated that stem cutting in the spring without follow-up control practices provided no control. Covering plants with a tarp after cutting them (either with or without a glyphosate treatment after cutting) resulted in 96% control. Application of glyphosate alone also resulted in excellent control, although timing of application was an important factor for maximizing efficacy. The best results were found when the maximum dose (10.2 L ai ha−1) was split among two or three applications (>99% of control) compared with the maximum dose applied once (75% to 94%). Control was lower (73% to 89%) for two of the strategies that included mechanical practices, stem cutting + glyphosate and rhizome digging, in comparison to other strategies involving tarps and/or glyphosate applications (88% to 100%). Results indicated that it is very difficult to eradicate volunteerA. donaxin 1 yr, but very good control can be achieved with several of the strategies tested.

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Ruiz-Azcona, Paz, Rafael Rodríguez-Sierra et Josefa B. Martín. « Culture of coquina clam, Donax trunculus, larvae ». Aquaculture 139, n^o 1-2 (janvier 1996) : 151–55. http://dx.doi.org/10.1016/0044-8486(95)01154-4.

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Spatz, H. Ch, H. Beismann, F. Brüchert, A. Emanns et Th Speck. « Biomechanics of the giant reed Arundo donax ». Philosophical Transactions of the Royal Society of London. Series B : Biological Sciences 352, n^o 1349 (29 janvier 1997) : 1–10. http://dx.doi.org/10.1098/rstb.1997.0001.

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The quantitative description of local buckling of hollow plant stems requires the knowledge of Young's modulus in the longitudinal and tangential directions for the different tissues of which the stem is composed. For thick–walled stems the shear modulus for the radial–tangential plane is needed for an advanced treatment of the process of ovalization. The primary causes of failure can be predicted if critical compressive strains in the longitudinal direction and critical tensile strains in the tangential direction are known. All of these mechanical properties and their variation along the length of the stem can be measured in Arundo donax .

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Milani, Marzo, Toscano, Consoli, Cirelli, Ventura et Barbagallo. « Evapotranspiration from Horizontal Subsurface Flow Constructed Wetlands Planted with Different Perennial Plant Species ». Water 11, n^o 10 (17 octobre 2019) : 2159. http://dx.doi.org/10.3390/w11102159.

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This paper presents the results of an experiment carried out in Southern Italy (Sicily) on the estimation evapotranspiration (ET) in pilot constructed wetlands planted with different species (Chrysopogon zizanioides, Myscanthus x giganteus, Arundo donax, Phragmites australis, and Cyperus papyrus). In the two monitored growing seasons, reference ET0 was calculated with the Penman-Monteith formula, while actual ET and crop coefficients were measured through a water balance and the FAO 56 approach, respectively. The highest average seasonal ET value was observed in Phragmites australis (17.31 mm d−1) followed by Arundo donax (11.23 mm day−1) Chrysopogon zizanioides (8.56 mm day−1), Cyperus papyrus (7.86 mm day−1), and Myscanthus x giganteus (7.35 mm day−1). For all plants, crop coefficient values showed different patterns in relation to growth stages and were strongly correlated with phenological parameters. Myscanthus x giganteus and Arundo donax showed a water use efficiency values significantly higher than those observed for the other tested species. Results of this study may contribute to select appropriate plant species for constructed wetlands located in semi-arid regions, especially when the use of reclaimed water and/or the use of aboveground biomass are planned.

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Pan, R. R., F. L. Fan, Y. Li et X. J. Jin. « Microwave regeneration of phenol-loaded activated carbons obtained from Arundo donax and waste fiberboard ». RSC Advances 6, n^o 39 (2016) : 32960–66. http://dx.doi.org/10.1039/c6ra01642a.

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Valencia de Ita, María Ángeles, María Dolores Castañeda Antonio, Manuel Huerta Lara et Omar Romero Arenas. « Carrizo silvestre (Arundo donax) como sustrato alternativo en la producción de Pleurotus ostreatus ». Scientia Fungorum 48 (23 février 2019) : 15–22. http://dx.doi.org/10.33885/sf.2018.48.1231.

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Antecedentes: La producción de hongos comestibles es una alternativa para la obtención de alimentos, manejo de residuos agrícolas y aprovechamiento de recursos vegetales; en el caso de Arundo donax, además de ser una especie exótica invasora en sistemas riparios, es un eficiente productor de biomasa, con alto contenido de nutrientes, que lo convierten en un sustrato adecuado para la producción de setas.Objetivos: Evaluar el potencial productivo y proximal de la CP-50 de P. ostreatus, utilizando carrizo silvestre en comparación y combinación con residuos agrícolas, en condiciones controladas.Métodos: Se seleccionó el carrizo silvestre y tres residuos agrícolas de la región de Tetela de Ocampo, Puebla. Se evaluó la eficiencia biológica, la tasa de producción y la tasa de biodegradación en un diseño de bloques al azar, además, se realizó un estudio químico proximal de los basidiomas obtenidos de la cepa CP-50 y de A. donax como sustrato y se calculó el valor energético (Kcal/100 g) de las setas para cada tratamiento.Resultados y conclusiones: Arundo donax como sustrato obtuvo el mayor rendimiento, ya que presentó una alta concentración de proteína y materia seca, la cual benefició el potencial productivo de la CP-50 con residuos agrícolas de la región.

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Ramos, Diego, Nour-Eddine El Mansouri, Francesc Ferrando et Joan Salvadó. « All-lignocellulosic Fiberboard from Steam Exploded Arundo Donax L. » Molecules 23, n^o 9 (21 août 2018) : 2088. http://dx.doi.org/10.3390/molecules23092088.

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This paper explores the possibility of producing all-lignocellulosic fiberboards from Arundo donax L. as a source of lignocellulosic fibers with no synthetic binders. This raw material was steam exploded with a thermomechanical aqueous vapor process in a batch reactor. The Arundo donax raw material and its obtained pulp were characterized in terms of chemical composition and the results were compared to other lignocellulosic materials. The chemical composition of steam exploded Arundo fibers showed high cellulose and a moderate lignin content suggesting it was a good raw material for fiberboard production. The all-lignocellulosic fiberboards were produced on laboratory scale; using the steam exploded Arundo donax by means of a wet process. The effects of pressing pressure on physical and mechanical properties were evaluated and the conditions that optimize the responses were found. The analyzed properties were density (d); water absorption (WA); thickness swelling (TS); modulus of elasticity (MOE); modulus of rupture (MOR); and internal bond strength (IB). The tested levels of the pressing pressure range from 0.35 to 15 MPa. The optimum IB; MOE; MOR; WA and TS were 1.28 MPa, 7439 MPa, 40.4 MPa, 17.6% and 13.3%, respectively. The obtained fiberboards were of very good quality and more than satisfy the requirements of the relevant standard specifications.

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Eller, Franziska, Per Magnus Ehde, Claudia Oehmke, Linjing Ren, Hans Brix, Brian K. Sorrell et Stefan E. B. Weisner. « Biomethane Yield from Different European Phragmites australis Genotypes, Compared with Other Herbaceous Wetland Species Grown at Different Fertilization Regimes ». Resources 9, n^o 5 (12 mai 2020) : 57. http://dx.doi.org/10.3390/resources9050057.

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Phragmites australis, Typha latifolia, T. angustifolia and Arundo donax are tall wetland graminoids with the potential to replace fossil fuels under sustainable cultivation conditions. We investigated the biomethane (CH4) production of these four species, including four different genotypes of P. australis, which represent the high intraspecific diversity of European reed. All plants were grown under three different macronutrient supplies (no nutrients added, an equivalent of 75 kg N ha−1 year−1 added and an equivalent of 500 kg N ha−1 year−1 added). Biomethane production was measured in four independent batch digestion tests. Across all experiments, fertilization regime had little effect on CH4 yield, which was on average 222 ± 31 L kg−1 volatile solids (VS). The lowest yield was produced by T. angustifolia (140 L kgVS−1) receiving no nutrients, while the highest yield was produced by A. donax (305 L kgVS−1) in the highest nutrient treatment. The intraspecific diversity of P. australis did not affect biomethane production. All P. australis genotypes produced on average 226 ± 19 L CH4 kgVS−1, which, although high, was still lower than conventional biogas species. The biomass production of P. australis was less increased by fertilization than that of Typha sp. and A. donax, but all species had similar biomass without fertilization.

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Nunes, Helder P. B., Sofia Teixeira, Cristiana S. A. M. Maduro Dias et Alfredo E. S. Borba. « Alternative Forages as Roughage for Ruminant : Nutritional Characteristics and Digestibility of Six Exotic Plants in Azores Archipelago ». Animals 12, n^o 24 (19 décembre 2022) : 3587. http://dx.doi.org/10.3390/ani12243587.

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This study aimed to evaluate the nutritional potential of unconventional plants: Pittosporum undulatum, Cryptomeria japonica, Acacia melanoxylon, Hedychium gardnerianum, Eucalyptus globulus, and Arundo donax, as an alternative roughage for ruminants. Chemical composition, gross energy, in vitro gas production, kinetics, and digestibility of dry matter and organic matter in vitro were determined for each species. The obtained results showed variations between the studied forages concerning crude protein, and the different fiber fractions: NDF, ADF, and ADL The P. undulatum with a relative food value of 92.12%, showed a significant difference compared to the other species under study. After 96 h of incubation, the plants that produced, on average, less in vitro gas were A. melanoxylon and E. globulus. Among the studied species, A. donax stands out as the species that presented the highest gas production, with 31.53 mL. 200 mg−1 DM, observing a significant difference compared to the other plants. This is a reflection of it having the highest DMD (60.44 ± 1.22%) as well. P. undulatum was the species with the longest colonization time (4.8 h). Among the plants studied, we highlight P. undulatum as presenting a good quality in the RFV index and A. donax as having good digestibility. Both can be used as roughage in periods of greater shortage of pastures.

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Borah, Arup Jyoti, Shuchi Singh, Arun Goyal et Vijayanand S. Moholkar. « An assessment of the potential of invasive weeds as multiple feedstocks for biofuel production ». RSC Advances 6, n^o 52 (2016) : 47151–63. http://dx.doi.org/10.1039/c5ra27787f.

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The present study assessed the feasibility of five invasive weeds, namely, Arundo donax, Saccharum spontaneum, Mikania mikrantha, Lantana camara and Eichhornia crasspies, as a feedstock for biofuels production.

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Bhattarai, Krishna Prasad, Bishnu Datt Pant, Rajan Rai, Ram Lochan Aryal, Hari Paudyal, Surendra Kumar Gautam, Kedar Nath Ghimire, Megh Raj Pokhrel et Bhoj Raj Poudel. « Efficient Sequestration of Cr(VI) from Aqueous Solution Using Biosorbent Derived from Arundo donax Stem ». Journal of Chemistry 2022 (14 octobre 2022) : 1–12. http://dx.doi.org/10.1155/2022/9926391.

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The potential of a biosorbent derived from Arundo donax stem, a readily available agricultural product, was examined to remove Cr(VI) from water. Various techniques such as XRD, FTIR, SEM, and EDX were used for the characterization of the prepared adsorbent. The optimal pH for Cr(VI) biosorption was found to be 2.0. The experimental data best suits the Langmuir isotherm model and pseudosecond-order kinetics. The maximum biosorption capacity (qmax) of the investigated biosorbent for Cr(VI) was evaluated to be 76.92 mg/g by the Langmuir model. From the results of the Cr(VI) biosorption using charred Arundo donax stem powder (CADSP), it can be a novel, cost-efficient, and effective material for removing Cr(VI) from water and wastewater.

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Çolakolu, Fatma Arik, Mine Çardak, Serhat Çolakoglu et Ibrahim Ender Künili. « Depuration Times of Donax trunculus and Tapes decussatus ». Brazilian Journal of Microbiology 45, n^o 3 (septembre 2014) : 1017–22. http://dx.doi.org/10.1590/s1517-83822014000300034.

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Ellers, O. « Form and Motion of Donax variabilis in Flow ». Biological Bulletin 189, n^o 2 (octobre 1995) : 138–47. http://dx.doi.org/10.2307/1542464.

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Spencer, David, Anna Sher, David Thornby, Pui-Sze Liow, Gregory Ksander et Wailun Tan. « Non-Destructive Assessment ofArundo donax(Poaceae) Leaf Quality ». Journal of Freshwater Ecology 22, n^o 2 (juin 2007) : 277–85. http://dx.doi.org/10.1080/02705060.2007.9665049.

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