MAPK Enzymes: a ROS Activated Signaling Sensors Involved in Modulating Heat Stress Response, Tolerance and Grain Stabili
- PDF / 1,914,054 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 2 Downloads / 165 Views
REVIEW ARTICLE
MAPK Enzymes: a ROS Activated Signaling Sensors Involved in Modulating Heat Stress Response, Tolerance and Grain Stability of Wheat under Heat Stress Ranjeet R. Kumar1 · Kirti Arora1 · Suneha Goswami1 · Akshay Sakhare2 · Bhupinder Singh3 · Viswanathan Chinnusamy2 · Shelly Praveen1 Received: 29 June 2020 / Accepted: 31 July 2020 © King Abdulaziz City for Science and Technology 2020
Abstract Mitogen-activated protein kinase (MAPK) signaling cascade is highly conserved across the species triggering the selfadjustment of the cells by transmitting the external signals to the nucleus. The cascade consists of MAPK kinase kinases (MAPKKKs), MAPK kinases (MAPKKs) and MAPKs. These kinases are functionally interrelated through activation by sequential phosphorylation. MAPK cascade is involved in modulating the tolerance and regulating the growth and developmental processes in plants through transcriptional programming. The cascade has been well characterized in Arabidopsis, Tobacco and rice, but limited information is available in wheat due to complexity of genome. MAPK-based sensors have been reported to be highly specific for the external or intracellular stimuli activating specific TF, stress-associated genes (SAGs) and stress-associated proteins (SAPs) linked with heat-stress tolerance and other biological functions especially size, number and quality of grains. Even, MAPKs have been reported to influence the activity of ATP-binding cassette (ABC) transporter superfamily involved in stabilizing the quality of the grains under adverse conditions. Wheat has also diverse network of MAPKs involved in transcriptional reprogramming upon sensing the terminal HS and in turn protect the plants. Current review mainly focuses on the role of MAPKs as signaling sensor and modulator of defense mechanism for mitigating the effect of heat on plants with focus on wheat. It also indirectly protects the nutrient depletion from the grains under heat stress. MAPKs, lying at pivotal positions, can be utilized for manipulating the heat-stress response (HSR) of wheat to develop plant for future (P4F). Keywords MAPK · Thermotolerance · Signaling cascade · Protein kinases · Terminal heat stress · Wheat Abbreviations MAPK Mitogen-activated protein kinase JNKs C-Jun N-terminal kinases ASK-1 Apoptosis signal-regulating kinase 1 SAGs Stress-associated genes
SAPs Stress-associated proteins HS Heat stress MSD1 Manganese superoxide dismutase 1 bZIP Basic leucine zipper CDPKs Calcium-dependent protein kinases
* Ranjeet R. Kumar [email protected]
Viswanathan Chinnusamy [email protected]
* Shelly Praveen [email protected]
1
Kirti Arora [email protected]
Division of Biochemistry, Indian Agricultural Research Institute, New Delhi 110012, India
2
Suneha Goswami [email protected]
Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India
3
Centre for Environment Science and Climate Resilient Agriculture (CESCRA), Indian Agricultural Research
Data Loading...
