Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana

Excessive ammonium assimilation by plastidic glutamine synthetase causes ammonium toxicity in Arabidopsis thaliana

Ammonium is an important nitrogen source for plants but excess ammonium impairs growth. Here the authors show that ammonium toxicity results from assimilation by GLUTAMINE SYNTHETASE 2 in the plastids which results in excess proton accumulation and acidity stress.

Bibliographic Details
Main Authors: Takushi Hachiya, Jun Inaba, Mayumi Wakazaki, Mayuko Sato, Kiminori Toyooka, Atsuko Miyagi, Maki Kawai-Yamada, Daisuke Sugiura, Tsuyoshi Nakagawa, Takatoshi Kiba, Alain Gojon, Hitoshi Sakakibara
Format: Article
Language:English
Published: Nature Publishing Group 2021-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-021-25238-7

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