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Title: Polyamines: Small Amines with Large Effects on Plant Abiotic Stress Tolerance
Author: Alcázar Hernández, Rubén
Bueno, Milagros
Fernández Tiburcio, Antonio
Keywords: Plantes
Efecte de l'estrès sobre les plantes
Canvi climàtic
Effect of stress on plants
Climatic change
Issue Date: 29-Oct-2020
Publisher: MDPI
Abstract: In recent years, climate change has altered many ecosystems due to a combination of frequent droughts, irregular precipitation, increasingly salinized areas and high temperatures. These environmental changes have also caused a decline in crop yield worldwide. Therefore, there is an urgent need to fully understand the plant responses to abiotic stress and to apply the acquired knowledge to improve stress tolerance in crop plants. The accumulation of polyamines (PAs) in response to many abiotic stresses is one of the most remarkable plant metabolic responses. In this review, we provide an update about the most significant achievements improving plant tolerance to drought, salinity, low and high temperature stresses by exogenous application of PAs or genetic manipulation of endogenous PA levels. We also provide some clues about possible mechanisms underlying PA functions, as well as known cross-talks with other stress signaling pathways. Finally, we discuss about the possible use of PAs for seed priming to induce abiotic stress tolerance in agricultural valuable crop plants.
Note: Reproducció del document publicat a:
It is part of: Cells, 2020, vol. 9(11), num. 2373
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ISSN: 2073-4409
Appears in Collections:Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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