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Jasmonates: Emerging Players in Controlling Temperature Stress Tolerance
Manvi Sharma1, Ashverya Laxmi1
1National Institute of Plant Genome Research New Delhi, India.
Frontiers in Plant Science
|January 19, 2016
Summary
Plant hormones called jasmonates (JAs) help plants cope with cold and heat stress. JAs regulate key pathways like CBF signaling and induce enzymes to avoid damage, improving plant survival in temperature extremes.
Area of Science:
- Plant Physiology
- Molecular Biology
- Environmental Stress Response
Background:
- Plants face constant biotic and abiotic stresses due to their sessile nature.
- Phytohormones are crucial for mediating plant responses to environmental challenges.
- Jasmonates (JAs), a class of oxylipins, are vital regulators of plant development and stress responses.
Purpose of the Study:
- To review the role of jasmonates in plant responses to temperature stress.
- To elucidate the biosynthesis and signal transduction pathways of jasmonic acid.
- To highlight JAs' involvement in cold and heat stress tolerance mechanisms.
Main Methods:
- Literature review of existing research on jasmonates and temperature stress.
- Analysis of studies on JA signaling pathways and their interaction with stress-related factors.
- Examination of evidence for JA's role in regulating CBF pathways and thermotolerance.
Main Results:
- Jasmonates regulate the C-repeat binding factor (CBF) pathway during cold stress.
- JAs counteract chilling stress by inducing reactive oxygen species (ROS) avoidance enzymes.
- Evidence supports a positive regulatory role of JAs in thermotolerance.
Conclusions:
- Jasmonates are key players in plant adaptation to temperature fluctuations.
- Understanding JA pathways offers potential for enhancing crop resilience to thermal stress.
- Further research into JA signaling can unlock strategies for improving plant stress management.
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