作者
René Richter, Carina Behringer, Isabel Karin Müller, Claus Schwechheimer
发表日期
2010/9/15
期刊
Genes & development
卷号
24
期号
18
页码范围
2093-2104
出版商
Cold Spring Harbor Lab
简介
The phytohormone gibberellin (GA) regulates various developmental processes in plants such as germination, greening, elongation growth, and flowering time. DELLA proteins, which are degraded in response to GA, repress GA signaling by inhibitory interactions with PHYTOCHROME-INTERACTING FACTOR (PIF) family transcription factors. How GA signaling is controlled downstream from the DELLA and PIF regulators is, at present, unclear. Here, we characterize GNC (GATA, NITRATE-INDUCIBLE, CARBON-METABOLISM INVOLVED) and GNL/CGA1 (GNC-LIKE/CYTOKININ-RESPONSIVE GATA FACTOR1), two homologous GATA-type transcription factors from Arabidopsis thaliana that we initially identified as GA-regulated genes. Our genetic analyses of loss-of-function mutants and overexpression lines establish that GNC and GNL are functionally redundant regulators of germination, greening, elongation …
学术搜索中的文章
R Richter, C Behringer, IK Müller, C Schwechheimer - Genes & development, 2010