Approaches in modulating proline metabolism in plants for salt and drought stress tolerance: Phytohormones, mineral nutrients and transgenics

Per, T S and Khan, N A and Reddy, P S and Masood, A and Hasanuzzaman, M and Khan, M I R and Anjum, N A (2017) Approaches in modulating proline metabolism in plants for salt and drought stress tolerance: Phytohormones, mineral nutrients and transgenics. Plant Physiology and Biochemistry, 115. pp. 126-140. ISSN 0981-9428

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Abstract

Major abiotic stress factors such as salt and drought adversely affect important physiological processes and biochemical mechanisms and cause severe loss in crop productivity worldwide. Plants develop various strategies to stand healthy against these stress factors. The accumulation of proline (Pro) is one of the striking metabolic responses of plants to salt and drought stress. Pro biosynthesis and signalling contribute to the redox balance of cell under normal and stressful conditions. However, literature is meager on the sustainable strategies potentially fit for modulating Pro biosynthesis and production in stressed plants. Considering the recent literature, this paper in its first part overviews Pro biosynthesis and transport in plants and also briefly highlights the significance of Pro in plant responses to salt and drought stress. Secondly, this paper discusses mechanisms underlying the regulation of Pro metabolism in salt and drought-exposed plant via phytohormones, mineral nutrients and transgenic approaches. The outcome of the studies may give new opportunities in modulating Pro metabolism for improving plant tolerance to salt and drought stress and benefit sustainable agriculture.

Item Type: Article
Divisions: Research Program : Genetic Gains
CRP: UNSPECIFIED
Uncontrolled Keywords: Abiotic stress, Compatible solutes; Drought stress; Osmotic stress; Phytohormones; Proline; Salt stress; Sustainable agriculture
Subjects: Others > Plant Physiology
Depositing User: Mr Ramesh K
Date Deposited: 12 Apr 2017 08:19
Last Modified: 12 Apr 2017 08:19
URI: http://oar.icrisat.org/id/eprint/9951
Official URL: http://doi.org/10.1016/j.plaphy.2017.03.018
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: Research facilities in the laboratory of NAK are provided in BUILDER Programme (BT/PR4872INF22/150/2012) of the Department of Biotechnology, New Delhi.
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