Current Understanding of the Interplay between Phytohormones and Photosynthesis under Environmental Stress.
Abiotic stress accounts for huge crop losses every year across the globe. In plants, the photosynthetic machinery gets severely damaged at various levels due to adverse environmental conditions. Moreover, the reactive oxygen species (ROS) generated as a result of stress further promote the photosynthetic damage by inhibiting the repair system of photosystem II. Earlier studies have suggested that phytohormones are not only required for plant growth and development, but they also play a pivotal role in regulating plants' responses to different abiotic stress conditions. Although, phytohormones have been studied in great detail in the past, their influence on the photosynthetic machinery under abiotic stress has not been studied. One of the major factors that limits researchers from elucidating the precise roles of phytohormones is the highly complex nature of hormonal crosstalk in plants. Another factor that needs to be elucidated is the method used for assessing photosynthetic damage in plants that are subjected to abiotic stress. Here, we review the current understanding on the role of phytohormones in the photosynthetic machinery under various abiotic stress conditions and discuss the potential areas for further research.
School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbook 712-749, Korea. mayank@ynu.ac.kr.
Mayank Anand
MA
Gururani
School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbook 712-749, Korea. nostoc.tapan@gmail.com.
Tapan Kumar
TK
Mohanta
School of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbook 712-749, Korea. hanhongbae@ynu.ac.kr.
Hanhong
H
Bae
D004777:Environment; D010788:Photosynthesis; D045332:Photosystem II Protein Complex / Q000378:metabolism; D010937:Plant Growth Regulators / Q000378:metabolism*; D018521:Plant Physiological Phenomena; D010944:Plants / Q000378:metabolism; D013312:Stress, Physiological
D045332:Photosystem II Protein Complex; D010937:Plant Growth Regulators
environmental stress; photosystem II; photosystem II (PSII) repairing system; phytohormones; stress tolerance