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Sowing a future for peas
September 17, 2008New research from the John Innes Centre and the Central Science Laboratory could help breeders to develop pea varieties able to withstand drought stress and climate change. The research also shows that the composition of crops is likely to change with the climate.
"While many compounds have been reported to change in laboratory based drought stress experiments, few have identified how such compounds change in crops under field conditions," says Dr Claire Domoney of the John Innes Centre.
The researchers used NMR spectroscopy to produce a profile of the levels of all the different small molecules or metabolites in pea plant leaves. This profile, known as the metabolome, was then compared with that from plants subjected to controlled drought stress. The study found several key plant metabolites increased under drought stress, some of which had not previously been shown to be involved.
Less water, especially at critical times in the growing season, means lower yield and quality. This new information could be used to identify varieties of pea and other pulse crops that are more tolerant to changes in water availability.
Drought stress also induced changes in compounds that could have an impact on taste and flavour. Changes in climate are likely to alter the characteristics of commercial crops and could possibly affect their value. Peas and other legumes make a valuable contribution to sustainable food production by fixing nitrogen in the soil for the next crop, reducing the need for nitrogen fertilizer.
Norwich BioScience Institutes
Less water, especially at critical times in the growing season, means lower yield and quality. This new information could be used to identify varieties of pea and other pulse crops that are more tolerant to changes in water availability.
Drought stress also induced changes in compounds that could have an impact on taste and flavour. Changes in climate are likely to alter the characteristics of commercial crops and could possibly affect their value. Peas and other legumes make a valuable contribution to sustainable food production by fixing nitrogen in the soil for the next crop, reducing the need for nitrogen fertilizer.
Norwich BioScience Institutes
UCR plant scientist's research spawns new discoveries showing how crops survive drought
Breakthrough research done earlier this year by a plant cell biologist at the University of California, Riverside has greatly accelerated scientists' knowledge on how plants and crops can survive difficult environmental conditions such as drought.
Gene That Controls Ozone Resistance of Plants Could Lead to Drought-Resistant Crops
Biologists at the University of California, San Diego, working with collaborators at the University of Helsinki in Finland and two other European institutions, have elucidated the mechanism of a plant gene that controls the amount of atmospheric ozone entering a plant's leaves.
Membrane research opens window to benefits for plants, humans
A wilting, water-starved houseplant and flood-covered crops have something in common. That knowledge, gleaned from spinach and researchers on two continents, potentially could open the gate to advances in both plant and human health.
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Abiotic Stresses and Soybean: Influence of Salinity and Drought on Soybean, Strategies for Alleviating Salt and Drought Stress, and Role of Associated Fungal Endophytes by Muhammad Hamayun (Author) Agricultural productivity is subjected to enormous environmental constraints, particularly to salinity and drought. This book includes screening of 69 soybean cultivars for salinity and drought stress. The changes in endogenous phytohormones and pertinent growth attributes of soybean in response to salinity and drought were also examined. Plant growth regulators (PGRs) and other chemicals were investigated for salt and drought stress alleviation on soybean growth, endogenous hormones and germination. Furthermore, the role of endophytic fungi under stressful environmental condition was investigated. Seven endophytic fungi with significant gibberellins production and plant growth promotion capacity were identified. Gibberella fujikuroi was used for comparison purpose. Of... |
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Drought Stress Signal Transduction by the Hd-Zip Transcription Factors Athb6 & Athb7 (Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science & Technology) by Mattias Hjellstrom (Author) | |
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Physiologic and Morphologic Investigations of Grain Sorghum Sorghum Bicolor Moench: I. Vascularization II. Response to Internal Drought Stress by Joe Hultquist (Author) dissertaion, hardcover, red cloth | |
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Does lipophilicity of toxic compounds determine effects on drought tolerance of the soil collembolan Folsomia candida? [An article from: Environmental Pollution] by G. Skovlund (Author), C. Damgaard (Author), M. Bayley (Author), M. Holmstrup (Author) This digital document is a journal article from Environmental Pollution, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: The ability of Collembola to survive drought stress is crucial for their distribution in the terrestrial environment. Previous studies have suggested that several toxic compounds affect the drought tolerance of Folsomia candida in a synergistic manner and that these compounds have the feature in common that they elicit their toxicity by causing membrane damage. We hypothesised that the detrimental effect of toxic chemicals on drought tolerance in F. candida depends on the lipophilicity (logK"o"w) of the... |
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