Chapter 11
Role of ET and ROS in Salt Homeostasis and Salinity Stress Tolerance and Transgenic Approaches to Making Salt-Tolerant Crops
Neeraj Kumar Dubey,
Kapil Gupta,
Surendra Pratap Singh,
Jogeswar Panigrahi,
Satendra Pal Singh,
Neeraj Kumar Dubey
Botany Department, Rashtriya Snatkottar Mahavidyalaya, Jamuhai, Jaunpur, Uttar Pradesh, India
Search for more papers by this authorKapil Gupta
Department of Biotechnology, Central University of Rajasthan, Ajmer, Rajasthan, India
Department of Biotechnology, Siddharth University, Kapilvastu, Uttar Pradesh, India
Search for more papers by this authorSurendra Pratap Singh
Department of Botany, D.A.V. College, C.S.J.M. University, Kanpur, Uttar Pradesh, India
Search for more papers by this authorJogeswar Panigrahi
Department of Biosciences and Bioinformatics, Khallikote University, Konishi, Berhampur, Odisha, India
Search for more papers by this authorSatendra Pal Singh
Department of Botany, Y.D. (P.G.) College, Lakhimpur Kheri, Uttar Pradesh, India
Search for more papers by this authorNeeraj Kumar Dubey,
Kapil Gupta,
Surendra Pratap Singh,
Jogeswar Panigrahi,
Satendra Pal Singh,
Neeraj Kumar Dubey
Botany Department, Rashtriya Snatkottar Mahavidyalaya, Jamuhai, Jaunpur, Uttar Pradesh, India
Search for more papers by this authorKapil Gupta
Department of Biotechnology, Central University of Rajasthan, Ajmer, Rajasthan, India
Department of Biotechnology, Siddharth University, Kapilvastu, Uttar Pradesh, India
Search for more papers by this authorSurendra Pratap Singh
Department of Botany, D.A.V. College, C.S.J.M. University, Kanpur, Uttar Pradesh, India
Search for more papers by this authorJogeswar Panigrahi
Department of Biosciences and Bioinformatics, Khallikote University, Konishi, Berhampur, Odisha, India
Search for more papers by this authorSatendra Pal Singh
Department of Botany, Y.D. (P.G.) College, Lakhimpur Kheri, Uttar Pradesh, India
Search for more papers by this authorBook Editor(s):Samiksha Singh, Tajammul Husain, Vijay Pratap Singh, Durgesh Kumar Tripathi,
Sheo Mohan Prasad, Nawal Kishore Dubey,
Durgesh Kumar Tripathi
Amity University Uttar Pradesh, Noida, India
Search for more papers by this authorFirst published: 26 August 2022
Summary
Plants face biotic and abiotic stresses that they cannot escape due to their immovable nature. Various phytohormones and signaling molecules, such as abscisic acid (ABA), ethylene (ET), gibberellin (GA), jasmonic acid (JA), salicylic acid (SA), auxins (IAAs), cytokinins (CKs), brassinosteroids (BRs), reactive oxygen species (ROS), and nitric oxide (NO), alone or together, help in the management of these stresses during plant life. Among the abiotic stresses, flooding, salinity, and heavy metals affect plant development and productivity. Salt stress is a major problem for agricultural land because most agricultural crops are glycophytes. A small amount of salt – about 100 millimolar (mM) – can create salt stress on plants and significantly damage crop production. These abiotic stresses induce changes in the balance of phytohormones expression, leading to the appearance of ET and ET-mediated ROS to battle salt stress. Roots are the first organs to face the problem of salt stress, and ET and ROS play an important role in root development under such stress conditions. Blocked ET pathways in mutant plants showed sensitivity toward salt stress. Considering the importance of these key players in salt stress, this chapter summarizes the role of ET and ROS in salinity stress and how this knowledge can be used to develop plant varieties that are tolerant to salt stress to achieve productivity at the requireed levels.
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