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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.
More Drought Stress Current Events and Drought Stress News Articles
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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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Compensation processes of Aleppo pine (Pinus halepensis Mill.) to ozone exposure and drought stress [An article from: Environmental Pollution] by R. Inclan (Author), B.S. Gimeno (Author), P. Dizengremel (Author), M Sanchez (Author) This digital document is a journal article from Environmental Pollution, published by Elsevier in . 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: A long-term experiment was performed to study the effects of O"3 and drought-stress (DS) on Aleppo pine seedlings (Pinus halepensis Mill.) exposed in open-top chambers. Ozone reduced gas exchange rates, ribulose-1,5-biphosphate carboxylase/oxygenase activity (Rubisco), aboveground C and needle N concentrations and C/N ratio and Ca concentrations of the twigs under 3 mm... |
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Drought stress induced changes in some organic substances in nodules and other plant parts of two potential legumes differing in salt tolerance [An article from: Flora] by M. Ashraf (Author), A. Iram (Author) This digital document is a journal article from Flora, published by Elsevier in . 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: A greenhouse experiment was conducted to assess the effect of water stress on growth and metabolic changes in nodules and other plant parts of two leguminous species, Phaseolus vulgaris and Sesbania aculeata, with the major objective that nodules play a vital role in drought tolerance. Imposition of water deficit conditions for 45 days to 15-day-old plants of P. vulgaris and S. aculeata reduced shoot mass and nodule mass of both species, but the reduction was more pronounced in P. vulgaris than in S. aculeata. Nitrate reductase... |
![Drought stress and fluctuating asymmetry in Quercus undulata leaves: confounding effects of absolute and relative amounts of stress? [An article from: Journal of Arid Environments]](http://ecx.images-amazon.com/images/I/51AS332DPEL._SL160_.jpg) |
Drought stress and fluctuating asymmetry in Quercus undulata leaves: confounding effects of absolute and relative amounts of stress? [An article from: Journal of Arid Environments] by J.M. Fair (Author), D.D. Breshears (Author) This digital document is a journal article from Journal of Arid Environments, published by Elsevier in 2005. 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: One of the most general types of stress experienced by plants is water-limitation, which becomes particularly pronounced during periods of drought. We evaluated fluctuating asymmetry (FA) in Quercus undulata leaves for two subsequent dry years: 2001, when precipitation was 25% below average, and 2002, when precipitation was 65% below average, from a plot receiving ambient water and one in which water was excluded. In the first and less severe drought year, ambient-water trees had a slightly higher index... |
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Physiological performance, yield, and quality of dry bean seeds under drought stress/Comportamiento fisiologico, rendimiento y calidad de semilla de frijol ... An article from: Interciencia by Ma. Claudia Castaneda-Saucedo (Author), Leobigildo Cordova-Tellez (Author), Victor A. Gonzalez-Hernandez (Author), Adriana Delgado-Alvarado (Author), Amalio Santacruz-Varela (Author), Gabino Garcia-de los Santos (Author) This digital document is an article from Interciencia, published by Interciencia Association on October 1, 2009. The length of the article is 6387 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. Citation Details Title: Physiological performance, yield, and quality of dry bean seeds under drought stress/Comportamiento fisiologico, rendimiento y calidad de semilla de frijol sometido a sequia/Comportamento fisiologico, rendimento e qualidade da semente do feijao submetido a seca.(REPORTS/COMUNICACIONES/COMUNICACOES) Author: Ma. Claudia Castaneda-Saucedo Publication: Interciencia (Magazine/Journal) Date: October 1,... | |
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Effect of drought stress and methanol on yield and yield components of soybean max (L 17).(Report): An article from: American Journal of Biochemistry and Biotechnology by Mojtaba Mirakhori (Author), Farzad Paknejad (Author), Foad Moradi (Author), Mohammadreza Ardakani (Author), Hossein Zahedi (Author), Parisa Nazeri (Author) This digital document is an article from American Journal of Biochemistry and Biotechnology, published by Science Publications on September 22, 2009. The length of the article is 5026 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser. From the author: Key words: Drought stress, methanol, growth, yield components, soybean Citation Details Title: Effect of drought stress and methanol on yield and yield components of soybean max (L 17).(Report) Author: Mojtaba Mirakhori Publication: American Journal of Biochemistry and Biotechnology (Magazine/Journal) Date: September 22, 2009 Publisher: Science Publications Volume: 5... | |
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Plant Responses to Abiotic Stress (Topics in Current Genetics) by Heribert Hirt (Editor), Kazuo Shinozaki (Editor) Environmental stresses represent the most limiting factors for agricultural productivity. Apart from biotic stress caused by plant pathogens, there are a number of abiotic stresses such as extremes in temperature, drought, salinity, heavy metals and radiation which all have detrimental effects on plant growth and yield. However, certain plant species and ecotypes have developed various mechanisms to adapt to such stress conditions. Recent advances in the understanding of these abiotic stress responses provided the impetus for compiling up-to-date reviews discussing all relevant topics in abiotic stress signaling of plants in a single volume. Topical reviews were prepared by selected experts and contain an introduction, discussion of the state of the art and important future tasks of the... |
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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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Interacting Stresses on Plants in a Changing Climate (NATO ASI Series / Global Environmental Change) by Michael B. Jackson (Editor), Colin R. Black (Editor) The current climatic changes mean increasing environmental stress on plants: gaseous pollutants such as carbon dioxide, sulphur dioxide, ozone and oxides of nitrogen, together with the impacts of flooding and submergence, drought and cold. The physiological, biochemical and molecular biological bases of injury to plants and their adaptations to this stress are discussed in this volume. The importance of the combined effects of more than one type of stress is emphasized, e.g. increased ultraviolet (UVB) radiation exacerbating injury from drought or offsetting beneficial effects of increases in atmospheric carbon dioxide. The prospects for improving tolerance to environmental stress by genetic engineering are assessed and some examples of recent progress described. |
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