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A chloroplast retrograde signal, 3'-phosphoadenosine 5'-phosphate, acts as a secondary messenger in abscisic acid signaling in stomatal closure and germination

Pornsiriwong, Wannarat; Estavillo, Gonzalo; Chan, Kai Xun; Ganguly, Diep; Crisp, Peter; Phua, Su Yin; Zhao, Chenchen; Qiu, Jiaen; Park, Jiyoung; Yong, Miing Tiem; Nisar, Nazia; Yadav, Arun; Schwessinger, Benjamin; Rathjen, John; Cazzonelli, Christopher; Wilson, Philippa; Gilliham, Matthew; Chen, Zhong-Hua; Pogson, Barry; Tee, Estee

Description

Organelle-nuclear retrograde signaling regulates gene expression, but its roles in specialized cells and integration with hormonal signaling remain enigmatic. Here we show that the SAL1-PAP (3′-phosphoadenosine 5′- phosphate) retrograde pathway interacts with abscisic acid (ABA) signaling to regulate stomatal closure and seed germination in Arabidopsis. Genetically or exogenously manipulating PAP bypasses the canonical signaling components ABA Insensitive 1 (ABI1) and Open Stomata 1 (OST1);...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/231021
Source: eLife
DOI: 10.7554/eLife.23361
Access Rights: Open Access

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