Photomorphogenic mutants of tomato
Photomorphogenic mutants of tomato
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DOI：
10.1046/j.1365-3040.1997.d01-109.x
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发表时间：
1997-06-01
影响因子：
7.3
通讯作者：
Koornneef, M
中科院分区：
文献类型：
--
作者：
Kendrick, RE;Kerckhoffs, LHJ;Koornneef, M
番茄（Lycopersicon esculentum Mill.）的光形态发生是借助在其光感受器组成或信号转导链上进行修饰的突变体进行的。光敏色素发色团突变体，可能缺乏所有的光敏色素，以及特异性缺乏光敏色素A （phyA）或B1 （phyB1）的突变体，已经被用来研究光敏色素在光形态发生中的作用。此外，其他突变体，包括过量产生phyA的转基因系，表现出夸张的光形态发生，使用这些突变体的研究进行了综述。随着重点放在花青素的生物合成和质体发育作为模型系统，解剖光感受器之间的复杂相互作用，并阐明光感受器转导链的性质，最近，通过筛选在phgA， phyb1缺乏的背景下分离出新的突变体。所选择的新表型是其他光感受器或其转导链突变的候选者。
Photomorphogenesis of tomato (Lycopersicon esculentum Mill.) is being studied with the aid of mutants which are modified either in their photoreceptor composition or in their signal transduction chain(s). Phytochrome chromophore mutants, presumably deficient in all phytochromes, and mutants specifically deficient in phytochrome A (phyA) or B1 (phyB1) have been used to study the roles played by phytochromes in photomorphogenesis, In addition, other mutants, including transgenic lines overproducing phyA, exhibit exaggerated photomorphogenesis, Studies using these mutants are reviewed, with emphasis being placed on anthocyanin biosynthesis and plastid development as model systems for the dissection of the complex interactions between photoreceptors and to elucidate the nature of photoreceptor transduction chains, Recently, new mutants have been isolated by screening in a phgA, phyB1-deficient background. The novel phenotypes selected are candidates for mutants in additional photoreceptors or their transduction chains.