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Published on: August 25, 2018
The regulation of ACC synthase protein turnover: a rapid route for modulating plant development and stress responses
Chanung Park1, Han Yong Lee1, Gyeong Mee Yoon1
1Department of Botany and Plant Pathology and Center for Plant Biology, Purdue University, West Lafayette, IN, 47907, USA.
Abstract:
The phytohormone ethylene regulates plant growth, development, and stress responses. The strict fine-tuning of the regulation of ethylene biosynthesis contributes to the diverse roles of ethylene in plants. Pyridoxal 5'-phosphate-dependent 1-aminocyclopropane-1-carboxylic acid synthase, a rate-limiting enzyme in ethylene biosynthesis, is central and often rate-limiting to regulate ethylene concentration in plants. The post-translational regulation of ACS is a major pathway controlling ethylene biosynthesis in response to various stimuli. We conclude that the regulation of ACS turnover may serve as a central hub for the rapid integration of developmental, environmental, and hormonal signals, all of which influence plant growth and stress responses.
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