Drought: Sensing, signalling, effects and tolerance in higher plants

Drought can be considered as a cocktail of multiple stressful conditions that contribute to osmotic and ionic imbalance in plants. Considering that water is vital for plant life, the very survival of the plant becomes questionable during drought conditions. Water deficit affects a wide spectrum of m...

Full description

Saved in:
Bibliographic Details
Published in:Physiologia plantarum 2021-06, Vol.172 (2), p.1291-1300
Main Authors: Mukarram, Mohammad, Choudhary, Sadaf, Kurjak, Daniel, Petek, Anja, Khan, M. Masroor A.
Format: Article
Language:English
Subjects:
Abscisic acid
Antioxidants
Drought
Environmental impact
Gas exchange
Photosynthesis
Physiological effects
Physiology
Plant growth
Reactive oxygen species
Signal transduction
Stomata
Water deficit
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Drought can be considered as a cocktail of multiple stressful conditions that contribute to osmotic and ionic imbalance in plants. Considering that water is vital for plant life, the very survival of the plant becomes questionable during drought conditions. Water deficit affects a wide spectrum of morpho‐physiological phenomena restricting overall plant growth, development and productivity. To evade such complications and ameliorate drought‐induced effects, plants have a battery of various defence mechanisms. These mechanisms can vary from stomatal adjustments to osmotic adjustments and antioxidant metabolism to ion regulations. In this review, we critically evaluate how drought is perceived and signalled through the whole plant via abscisic acid mediated pathways. Additionally, the impact of drought on photosynthesis, gas exchange variables and reactive oxygen species pathway was also reviewed, along with the reversal of these induced effects through associated morpho‐physiological counter mechanisms.
ISSN:0031-9317
1399-3054
DOI:10.1111/ppl.13423