Phytohormones and their metabolic engineering for abiotic stress tolerance in crop plants

By S. H. Wani, Vinay Kumar, V. Shriram, S. Sah. 2016

799 citations recorded by the source corpus.

Abiotic stresses including drought, salinity, heat, cold, flooding, and ultraviolet radiation causes crop losses worldwide. In recent times, preventing these crop losses and producing more food and feed to meet the demands of ever-increasing human populations have gained unprecedented importance. However, the proportion of agricultural lands facing multiple abiotic stresses is expected only to rise under a changing global climate fueled by anthropogenic activities. Identifying the mechanisms developed and deployed by plants to counteract abiotic stresses and maintain their growth and survival under harsh conditions thus holds great significance. Recent investigations have shown that phytohormones, including the classical auxins, cytokinins, ethylene, and gibberellins, and newer members including brassinosteroids, jasmonates, and strigolactones may prove to be important metabolic engineering targets for producing abiotic stress-tolerant crop plants. In this review, we summarize and critically assess the roles that phytohormones play in plant growth and development and abiotic stress tolerance, besides their engineering for conferring abiotic stress tolerance in transgenic crops. We also describe recent successes in identifying the roles of phytohormones under stressful conditions. We conclude by describing the recent progress and future prospects including limitations and challenges of phytohormone engineering for inducing abiotic stress tolerance in crop plants.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/0e79276fc88e7114ced30c2aebd7343637ed86f4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Plant Science

1. H. Hussain
2. A. Ali
3. M. Al-Issawi
4. Ying Ma
5. S. Hussain
6. Dhananjaya P. Singh
7. Ratna Prabha
8. Harkesh B. Singh

Citations in the corpus

• Advances in physiological and molecular aspects of plant cold tolerance (2017, positive): “Finally, phytohormones engineering is very promising in plant response to environmental stresses; however, more research is still needed in this field (Wani et al. 2016).”
• Drought and Salinity Stress Responses and Microbe-Induced Tolerance in Plants (2020, background): “It is well known that drought and salinity are the two foremost abiotic stresses that reduce the global productivity of major crops (Kaushal and Wani, 2016; Singh et  al., 2018).”
• Metabolic Processes During Seed Germination (2017, background): “Each of ABA, SA, JA and ET is found to play an essential role in mediating plant defense response against stresses [113].”
• Abiotic Stress Responses and Microbe-Mediated Mitigation in Plants: The Omics Strategies (2017, background): “Phytohormones are crucial for the plant growth and development but they critically play role in the abiotic stress tolerance (Wani et al., 2016).”
• Chilling and Drought Stresses in Crop Plants: Implications, Cross Talk, and Potential Management Opportunities (2018, background): “During drought stress, increased accumulation of ABA decreases the Cks contents while triggers the ABA/Cks ratio in plants (Wani et al., 2016).”
• Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects (2017, background): “…section: This article was submitted to Plant Physiology, a section of the journal Frontiers in Plant Science Received: 02 September 2016 Accepted: 25 January 2017 Published: 20 February 2017 Citation: Vishwakarma K, Upadhyay N, Kumar N, Yadav G, Singh J, Mishra RK, Kumar V,…”