Arabidopsis STAY-GREEN2 is a negative regulator of chlorophyll degradation during leaf senescence.

@article{Sakuraba2014ArabidopsisSI,
  title={Arabidopsis STAY-GREEN2 is a negative regulator of chlorophyll degradation during leaf senescence.},
  author={Yasuhito Sakuraba and So-Yon Park and Ye-Sol Kim and Seung-Hyun Wang and Soo-Cheul Yoo and Stefan H{\"o}rtensteiner and Nam-Chon Paek},
  journal={Molecular plant},
  year={2014},
  volume={7 8},
  pages={1288-1302}
}
Chlorophyll (Chl) degradation causes leaf yellowing during senescence or under stress conditions. For Chl breakdown, STAY-GREEN1 (SGR1) interacts with Chl catabolic enzymes (CCEs) and light-harvesting complex II (LHCII) at the thylakoid membrane, possibly to allow metabolic channeling of potentially phototoxic Chl breakdown intermediates. Among these Chl catabolic components, SGR1 acts as a key regulator of leaf yellowing. In addition to SGR1 (At4g22920), the Arabidopsis thaliana genome… CONTINUE READING
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