Roles of stay-green (SGR) homologs during chlorophyll degradation in green plants

Botanical Studies

Wei Lv¹  Baozhen Jiao¹  Qingwei Meng¹ 

[1] State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Daizong Street, 271018, Tai’an, Shandong, People’s Republic of China;

关键词: Chlorophyll degradation;    Stay-green (SGR) homologs;    Degreening;   

DOI  :  10.1186/s40529-020-00302-5

来源: Springer

【 摘 要 】

Chlorophyll (Chl) degradation is one of the most obvious signs of leaf senescence and fruit ripening. Stay-green (SGR) homologs that can remove magnesium from Chl a are the most important components in Chl degradation pathway in green plants. SGR homologs are not only universally involved in Chl breakdown during the senescence of green organs, but also play crucial roles in other organs during plant growth and development, such as fruit mature and nodule development. In this review, we focus on the diverse functions of SGR homologs in plant growth and development. A better understanding of SGR would be helpful for providing a theoretical basis for further illustrating the regulatory mechanism of SGR homologs.

【 授权许可】

CC BY