The promise and the potential consequences of the global transport of mycorrhizal fungal inoculum

Author: Schwartz, M.W.; Hoeksema, J.D.; Gehring, C.A.; Johnson, N.C.; Klironomos, J.N.; Abbott, L.K.; Pringle, A. Description: Advances in ecology during the past decade have led to a much more detailed understanding of the potential negative consequences of species’ introductions. Moreover, recent studies of mycorrhizal symbionts have led to an increased knowledge of the potential utility of fungal inoculations in agricultural, horticultural and ecological management. The intentional movement of mycorrhizal fungal species is growing, but the concomitant potential for negative ecological consequences of invasions by mycorrhizal fungi is poorly understood. We…

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Leaf Senescence: Correlated with Increased Levels of Membrane Permeability and Lipid Peroxidation, and Decreased Levels of Superoxide Dismutase and Catalase

Author: Dhindsa, R.S.; Plumb-Dhindsa, P.; Thorpe, T.A. Description: The changes in membrane permeability (soluble leakage), lipid peroxidation, and activities of superoxide dismutase (SOD) and catalase have been studied during in situ senescence of leaves of Nicotiana tabacum L., cv. Wisconsin 38. After full leaf expansion was reached there was a rapid, almost linear increase in the rate of 86Rb leakage from the preloaded leaf discs, with leaf age. Parallel with this increase in membrane permeability was a cumulative increase in the level of lipid peroxidation. At the same leaf age…

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The biological activities of 26 gibberellins in nine plant bioassays

Author: Crozier, A.; Kuo, C.C.; Durley, R.C.; Pharis, R.P. Description: The activities of gibberellins A1–A15, A17–A27 and A8-glucoside are compared, using original and previously published data, in the barley (Hordeum vulgare L.) aleurone α-amylase, Progress No. 9 dwarf pea (Pisum sativum L.), lettuce (Lactuca sativa L.), ‘Tan-ginbozu’ dwarf rice (Oryza sativa L.), cucumber (Cucumis sativus L.), and the d-1, d-2, d-3, and d-5 maize (Zea mays L.) mutant bioassays. Gibberellins A3 and A7 show high activity in most bioassays. Gibberellins A9, A10, A23, and A24 are species specific in their…

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Design and synthesis of 3-pyridylacetamide derivatives as dipeptidyl peptidase IV (DPP-4) inhibitors targeting a bidentate interaction with Arg125

Author: Miyamoto, Yasufumi; Banno, Yoshihiro; Yamashita, Tohru; Fujimoto, Tatsuhiko; Oi, Satoru; Moritoh, Yusuke; Asakawa, Tomoko; Kataoka, Osamu; Takeuchi, Koji; Suzuki, Nobuhiro; Ikedo, Koji; Kosaka, Takuo; Tsubotani, Shigetoshi; Tani, Akiyoshi; Funami, Miyuki; Amano, Michiko; Yamamoto, Yoshio; Aertgeerts, Kathleen; Yano, Jason; Maezaki, Hironobu Description: We have previously discovered nicotinic acid derivative 1 as a structurally novel dipeptidyl peptidase IV (DPP-4) inhibitor. In this study, we obtained the X-ray co-crystal structure between nicotinic acid derivative 1 and DPP-4. From these X-ray co-crystallography results, to achieve more potent inhibitory activity, we targeted Arg125 as…

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Phytochemical Methods: A Guide to Modern Techniques of Plant Analysis

Author: Harborne, A. J. Description: This third edition of Phytochemical Methods is, as its predecessors, a key tool for undergraduates, research workers in plant biochemistry, plant taxonomists and any researchers in related areas where the analysis of organic plant components is key to their investigations. Phytochemistry is a rapidly expanding area with new techniques being developed and existing ones perfected and made easier to incorporate as standard methods in the laboratory. This latest edition includes descriptions of the most up-to-date methods such as HPLC and the increasingly sophisticated NMR and…

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Seed Identification Manual

Author: Martin, A. C. & Barkley, W. D. Description: First published in 1961, this text deals exclusively with seed identification to help agriculturalists, foresters, wildlife biologists, and others interested in land-use programs identify the seeds in their particular fields of interest. Subject headings: Nature; Plants; Science; Life Sciences; Botany; Ecology; Seed identification Publication year: 1961 Publisher: University of California Press Pages: 221 Find the full text: https://books.google.com/books?hl=en&lr=&id=UlWQ97mR95YC&oi=fnd&pg=PA1&ots=3ouUh1gUhe&sig=qsqMBIfBiW1XB253nGrQtyy2NoU#v=onepage&q&f=false Find more like this one (cited by): https://scholar.google.com/scholar?cites=4976124359874531598&as_sdt=1000005&sciodt=0,16&hl=en Type: Book Serial number: 3104

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Soil-plant water relations, root distribution and biomass partitioning in Lupinus albus L. under drought conditions

Author: Rodrigues, M.L.; Pacheco, C.M.A.; Chaves, M.M. Description: Lupinus albus L. from different climatic origins responded to a 15 d period of water shortage during flowering by losing 50% of the total leaf canopy and gaining 55% in stem dry weight. Water deficits also led to a significant increase in the fine root length density and a slight increase in the fine root dry weight. The latter increase was especially pronounced in the deeper soil layers. Some marginal differences among genotypes were observed in the responses. Stomatal closure by midday…

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Role of mucilage in seed dispersal and germination of the annual ephemeral Alyssum minus (Brassicaceae)

Sun, Y., Tan, D.Y., Baskin, C.C., Baskin, J.M. (2012) Australian Journal of Botany, 60(5), 439-449 Seeds of Alyssum minus, an annual ephemeral in shrublands of north-west China, can produce a large amount of mucilage. The primary aim of this study was to explore the role of mucilage in seed dispersal, settlement onto the soil surface and germination of this species. Width of imbibed seeds with mucilage was three times greater than that of seeds without mucilage, and mass of mucilage increased 167 times after imbibition. Expanded dry mucilage significantly increased…

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