Crucial Cell Signaling Compounds Crosstalk and Integrative Multi-Omics Techniques for Salinity Stress Tolerance in Plants

Rajesh K Singhal; Debanjana Saha; Milan Skalicky; Udit N Mishra; Jyoti Chauhan; Laxmi P Behera; Devidutta Lenka; Subhash Chand; Vivek Kumar; Prajjal Dey; Indu; Saurabh Pandey; Pavla Vachova; Aayushi Gupta; Marian Brestic; Ayman El Sabagh

doi:10.3389/fpls.2021.670369

Crucial Cell Signaling Compounds Crosstalk and Integrative Multi-Omics Techniques for Salinity Stress Tolerance in Plants

Front Plant Sci. 2021 Aug 13:12:670369. doi: 10.3389/fpls.2021.670369. eCollection 2021.

Authors

Rajesh K Singhal¹, Debanjana Saha², Milan Skalicky³, Udit N Mishra⁴, Jyoti Chauhan⁵, Laxmi P Behera⁶, Devidutta Lenka⁷, Subhash Chand¹, Vivek Kumar⁸, Prajjal Dey⁴, Indu¹, Saurabh Pandey⁹, Pavla Vachova³, Aayushi Gupta³, Marian Brestic^{3

10}, Ayman El Sabagh^{11

12}

Affiliations

¹ ICAR-Indian Grassland and Fodder Research Institute, Jhansi, India.
² Department of Biotechnology, Centurion University of Technology and Management, Bhubaneswar, India.
³ Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia.
⁴ Faculty of Agriculture, Sri Sri University, Cuttack, India.
⁵ Narayan Institute of Agricultural Sciences, Gopal Narayan Singh University, Jamuhar, India.
⁶ Department of Agriculture Biotechnology, Orissa University of Agriculture and Technology, Bhubaneswar, India.
⁷ Department of Plant Breeding and Genetics, Orissa University of Agriculture and Technology, Bhubaneswar, India.
⁸ Institute of Agriculture Sciences, Banaras Hindu University, Varanasi, India.
⁹ Department of Agriculture, Guru Nanak Dev University, Amritsar, India.
¹⁰ Department of Plant Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovakia.
¹¹ Department of Agronomy, Faculty of Agriculture, University of Kafrelsheikh, Kafr El Sheikh, Egypt.
¹² Department of Field Crops, Faculty of Agriculture, Siirt University, Siirt, Turkey.

Abstract

In the era of rapid climate change, abiotic stresses are the primary cause for yield gap in major agricultural crops. Among them, salinity is considered a calamitous stress due to its global distribution and consequences. Salinity affects plant processes and growth by imposing osmotic stress and destroys ionic and redox signaling. It also affects phytohormone homeostasis, which leads to oxidative stress and eventually imbalances metabolic activity. In this situation, signaling compound crosstalk such as gasotransmitters [nitric oxide (NO), hydrogen sulfide (H₂S), hydrogen peroxide (H₂O₂), calcium (Ca), reactive oxygen species (ROS)] and plant growth regulators (auxin, ethylene, abscisic acid, and salicylic acid) have a decisive role in regulating plant stress signaling and administer unfavorable circumstances including salinity stress. Moreover, recent significant progress in omics techniques (transcriptomics, genomics, proteomics, and metabolomics) have helped to reinforce the deep understanding of molecular insight in multiple stress tolerance. Currently, there is very little information on gasotransmitters and plant growth regulator crosstalk and inadequacy of information regarding the integration of multi-omics technology during salinity stress. Therefore, there is an urgent need to understand the crucial cell signaling crosstalk mechanisms and integrative multi-omics techniques to provide a more direct approach for salinity stress tolerance. To address the above-mentioned words, this review covers the common mechanisms of signaling compounds and role of different signaling crosstalk under salinity stress tolerance. Thereafter, we mention the integration of different omics technology and compile recent information with respect to salinity stress tolerance.

Keywords: antioxidant defense; crosstalk; homeostasis; omics approaches; plant growth regulators; salinity stress tolerance; signaling network.

Publication types

Review