Journal Article10.1080/07352680590910410
Drought and Salt Tolerance in Plants
2.6K
TL;DR: The responses of plants to salt and water stress are described, the regulatory circuits which allow plants to cope with stress are presented, and how the present knowledge can be applied to obtain tolerant plants is discussed.
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Abstract: Agricultural productivity worldwide is subject to increasing environmental constraints, particularly to drought and salinity due to their high magnitude of impact and wide distribution. Traditional breeding programs trying to improve abiotic stress tolerance have had some success, but are limited by the multigenic nature of the trait. Tolerant plants such as Craterostigma plantagenium, Mesembryanthemum crystallinum, Thellungiella halophila and other hardy plants could be valuable tools to dissect the extreme tolerance nature. In the last decade, Arabidopsis thaliana, a genetic model plant, has been extensively used for unravelling the molecular basis of stress tolerance. Arabidopsis also proved to be extremely important for assessing functions for individual stress-associated genes due to the availability of knock-out mutants and its amenability for genetic transformation. In this review, the responses of plants to salt and water stress are described, the regulatory circuits which allow plants to cope wit...
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Citations
Crop Plant Hormones and Environmental Stress
Shah Fahad,Lixiao Nie,Yutiao Chen,Chao Wu,Dongliang Xiong,Shah Saud,Liu Hongyan,Kehui Cui,Jianliang Huang +8 more
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TL;DR: In this paper, the authors reviewed the role of hormones against abiotic tolerance in crop plants and found that abscisic acid act as a mediator in plant responses to many stresses, including salt stress.
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Tolerance of citrus plants to the combination of high temperatures and drought is associated to the increase in transpiration modulated by a reduction in abscisic acid levels
TL;DR: Data indicate that specific physiological responses to the combination of heat and drought exist in citrus and these responses are differently modulated depending on the particular stress tolerance of citrus genotypes.
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Putrescine accumulation confers drought tolerance in transgenic Arabidopsis plants over-expressing the homologous Arginine decarboxylase 2 gene.
Rubén Alcázar,Joan Planas,Triambak Saxena,Xavier Zarza,Cristina Bortolotti,Juan C. Cuevas,Marta Bitrián,Antonio F. Tiburcio,Teresa Altabella +8 more
TL;DR: Study of the response to drought of transgenic Arabidopsis thaliana lines constitutively expressing the homologous Arginine decarboxlase 2 gene indicates that one of the mechanisms involved in the drought tolerance oftransgenic plants over-producing Put is related to a reduction of water loss by transpiration.
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