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Potassium: A track to develop salinity tolerant plants
Sarika Kumari1, Himanshu Chhillar1, Priyanka Chopra1
1Department of Botany, Jamia Hamdard, New Delhi-110062, India.
Plant Physiology and Biochemistry : PPB
|October 1, 2021
Summary
Salinity severely limits crop productivity by disrupting plant ion balance. This review explores how potassium (K+) and plant growth regulators, aided by nanoparticles, can enhance plant salt tolerance.
Area of Science:
- Plant Science
- Agriculture
- Environmental Science
Background:
- Salinity is a major abiotic stress limiting global crop productivity.
- Salt stress disrupts ionic homeostasis, causing sodium (Na+) influx and potassium (K+) efflux, reducing cytosolic K+ levels and inhibiting growth.
Purpose of the Study:
- To review salinity-induced adversities in plants.
- To highlight the role of K+ in mitigating salinity stress.
- To discuss the influence of plant growth regulators (PGRs) and nanoparticles (NPs) on K+-mediated salt tolerance.
Main Methods:
- Literature review of existing research on salinity stress in plants.
- Analysis of the mechanisms of K+ uptake, transport, and function under salinity.
- Examination of the roles of PGRs, signaling molecules, and NPs in modulating K+ homeostasis.
Main Results:
- K+ is crucial for alleviating salinity stress and establishing salt tolerance mechanisms.
- PGRs and signaling molecules modulate K+-mediated salinity tolerance.
- Nanoparticles show potential in mediating K+ homeostasis and improving salt tolerance.
Conclusions:
- Understanding K+ roles and regulatory networks is key to improving plant salt tolerance.
- PGRs and NPs offer promising strategies for enhancing K+-mediated salinity tolerance in crops.
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