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Published on: August 5, 2020
Plant salinity stress, sensing, and its mitigation through WRKY
Gyanendra Kumar Rai1, Sonal Mishra2, Rekha Chouhan3
1School of Biotechnology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India.
Salinity negatively impacts plant growth and crop yields. This review explores how plants sense salt and how WRKY transcription factors help manage salinity stress to ensure global food security.
Area of Science:
- Plant Biology
- Molecular Biology
- Agricultural Science
Background:
- Salinity stress poses a significant threat to global crop productivity.
- Salt stress induces osmotic, ionic, and oxidative damage in plants.
- Plants have evolved complex homeostatic mechanisms to cope with salinity.
Purpose of the Study:
- To review the global impact of salinity on plants.
- To elucidate plant salt-sensing mechanisms.
- To highlight the role of WRKY transcription factors in salinity tolerance.
Main Methods:
- Literature review focusing on plant responses to salinity.
- Analysis of signaling pathways involved in salt stress response (SOS, ABA, ROS).
- Examination of the function of WRKY transcription factors in stress modulation.
Main Results:
- Salinity triggers diverse physiological and biochemical disturbances in plants.
- Activation of signaling pathways and transcriptional modulation are key responses.
- WRKY proteins play a crucial role in regulating plant adaptation to salt stress.
Conclusions:
- Understanding salt-sensing mechanisms is vital for improving crop resilience.
- WRKY transcription factors are key targets for enhancing salinity tolerance.
- This review provides insights for managing salinity to ensure food security.
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