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Ca2+ sensor-mediated ROS homeostasis: defense without yield penalty
Nidhi Kandhol1, Vijay Pratap Singh2, Yizhou Wang3
1Crop Nanobiology and Molecular Stress Physiology Laboratory, Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Sector-125, Noida-201313, India.
Trends in Plant Science
|May 31, 2022
Summary
Plants possess active immunity against pathogens, impacting growth. A calcium sensor, RESISTANCE OF RICE TO DISEASES1 (ROD1), balances plant defense and growth by regulating reactive oxygen species (ROS) metabolism and calcium-sensing.
Area of Science:
- Plant immunity
- Molecular plant pathology
- Plant physiology
Background:
- Constitutively active plant immunity can negatively affect plant growth and yield.
- Understanding the molecular mechanisms balancing immunity and growth is crucial for crop improvement.
Purpose of the Study:
- To investigate the role of the calcium sensor RESISTANCE OF RICE TO DISEASES1 (ROD1) in regulating plant immune responses.
- To elucidate how ROD1 integrates calcium-sensing and reactive oxygen species (ROS) metabolism for plant defense and growth.
Main Methods:
- Utilized genetic analysis and molecular biology techniques.
- Investigated the function of ROD1 in plant immune signaling pathways.
Main Results:
- Demonstrated that ROD1 acts as a calcium sensor.
- Showed that ROD1 regulates an immune suppression network.
- Revealed that this network consolidates ROS metabolism and Ca2+-sensing.
Conclusions:
- ROD1 plays a key role in equilibrating plant defense responses and optimal growth.
- The ROD1-mediated network provides a mechanism for plants to manage the trade-off between immunity and growth.
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