Biotechnology Bulletin ›› 2023, Vol. 39 ›› Issue (12): 33-42.doi: 10.13560/j.cnki.biotech.bull.1985.2023-0658

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Research Progress in the Mechanism of Plant Photosystem II(PSII)Responsing to Abiotic Stress

CHENG Shuang1(), ULAANDUU Namuun1, LI Zhuo-lin2, HU Hai-ling1, DENG Xiao-xia1, LI Yue-ming1, WANG Jing-hong1, LIN Ji-xiang1()   

  1. 1. College of Landscape Architecture, Northeast Forestry University, Harbin 150040
    2. Shanghai Normal University Tianhua College,Shanghai 201815
  • Received:2023-07-11 Online:2023-12-26 Published:2024-01-11
  • Contact: LIN Ji-xiang E-mail:2022120637@nefu.edu.cn;linjixiang@nefu.edu.cn

Abstract:

Plant growth process is influenced by a series of abiotic stresses represented by environmental factors(temperature, drought, salinity, and heavy metals, etc.), which hinder the photosynthetic process mainly characterized by substance conversion and energy metabolism. Photosystem II(PSII)is a multi-subunit pigment-protein complex located on the thylakoid membrane, which is particularly important for plant growth and development by capturing light energy to complete the photolysis of water and plastoquinone reduction. Generally, abiotic stress may inhibit the activity of PSII, affect its structure, and hinder electron transport and energy conversion. As the most vulnerable part of photosynthesis, PSII has attracted much attention in recent years due to its relationship with environmental factors. Based on this, this article summarized the physiological responses of plant PSII under major abiotic stresses such as temperature, drought, salt and heavy metals, and reviewed the structure and function of PSII, electron transfer process, photoinhibition and photoprotection based on chlorophyll fluorescence technology. It also provides a theoretical basis for further research on the physiological and molecular mechanisms of plant PSII response to abiotic stress.

Key words: abiotic stress, photosystem II(PSII), chlorophyll fluorescence technique, photosynthetic electron transport, photoinhibition