生物
叶绿体
拟南芥
核基因
基因
突变体
遗传学
基因表达
细胞生物学
叶绿体DNA
转录因子
基因组
作者
R E Susek,Frederick M. Ausubel,Joanne Chory
出处
期刊:Cell
[Elsevier]
日期:1993-09-01
卷期号:74 (5): 787-799
被引量:583
标识
DOI:10.1016/0092-8674(93)90459-4
摘要
Chloroplast development requires coordinate nuclear and chloroplast gene expression. A putative signal from the chloroplast couples the transcription of certain nuclear genes encoding photosynthesis-related proteins with chloroplast function. We have identified at least three Arabidopsis nuclear genes (GUN1, GUN2, and GUN3) necessary for coupling the expression of some nuclear genes to the functional state of the chloroplast. Homozygous recessive gun mutations allow nuclear gene expression in the absence of chloroplast development and furthermore may interfere with the switch from dark-grown to light-grown development. Other reports suggest this intracellular cross-talk also involves mitochondrial interactions. The GUN genes thus define steps in one specific branch of a complex interorganellar regulatory network.
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