Researchers report a transcription factor, NGA1, in Arabidopsis thaliana that accumulates under dehydration stress and activates the NCED3 gene, which in turn produces an enzyme used in the biosynthesis of abscisic acid (ABA), a plant hormone that promotes protective responses to drought and is degraded under non-drought conditions, suggesting that the transcription factor plays a role in early drought stress to upregulate ABA accumulation.
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Article #18-11491: "Arabidopsis thaliana NGATHA1 transcription factor induces ABA biosynthesis by activating NCED3 gene during dehydration stress," by Hikaru Sato et al.
MEDIA CONTACTS : Hikaru Sato, RIKEN Center for Sustainable Resource Science, Tsukuba, JAPAN; e-mail: < hikaru.sato@riken.jp >; Kazuo Shinozaki, RIKEN Center for Sustainable Resource Science, Tsukuba, JAPAN; e-mail: kazuo.shinozaki@riken.jp
Proceedings of the National Academy of Sciences