Article
ERF4 and MYB52 transcription factors play antagonistic roles in regulating homogalacturonan de-methylesterification in Arabidopsis seed coat mucilage.
The Plant cell - 17 Apr 2021
Ding Anming, Tang Xianfeng, Yang Dahai, Wang Meng, Ren Angyan, Xu Zongchang, Hu Ruibo, Zhou Gongke, O'Neill Malcolm, Kong Yingzhen
Abstract excerpt
Homogalacturonan (HG), a component of pectin, is synthesized in the Golgi apparatus in its fully methylesterified form. It is then secreted into the apoplast where it is typically de-methylesterified by pectin methylesterases (PME). Secretion and de-esterification are critical for normal pectin function, yet the underlying transcriptional regulation mechanisms remain largely unknown. Here, we uncovered a...
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