共查询到20条相似文献,搜索用时 375 毫秒
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The strawberry FaMYB1 transcription factor suppresses anthocyanin and flavonol accumulation in transgenic tobacco 总被引:21,自引:0,他引:21
Asaph Aharoni C. H. Ric De Vos Martina Wein Zhongkui Sun Raffaella Greco Arthur Kroon Joseph N. M. Mol Ann P. O''Connell 《The Plant journal : for cell and molecular biology》2001,28(3):319-332
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Hancock KR Collette V Fraser K Greig M Xue H Richardson K Jones C Rasmussen S 《Plant physiology》2012,159(3):1204-1220
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Appelhagen I Lu GH Huep G Schmelzer E Weisshaar B Sagasser M 《The Plant journal : for cell and molecular biology》2011,67(3):406-419
Wild type seed coats of Arabidopsis thaliana are brown due to the accumulation of proanthocyanidin pigments (PAs). The pigmentation requires activation of phenylpropanoid biosynthesis genes and mutations in some of these genes cause a yellow appearance of seeds, termed transparent testa (tt) phenotype. The TT1 gene encodes a WIP‐type zinc finger protein and is expressed in the seed coat endothelium where most of the PAs accumulate in wild type plants. In this study we show that TT1 is not only required for correct expression of PA‐specific genes in the seed coat, but also affects CHS, encoding the first enzyme of flavonoid biosynthesis. Many steps of this pathway are controlled by complexes of MYB and BHLH proteins with the WD40 factor TTG1. We demonstrate that TT1 can interact with the R2R3 MYB protein TT2 and that ectopic expression of TT2 can partially restore the lack in PA production in tt1. Reduced seed coat pigmentation was obtained using a TT1 variant lacking nuclear localisation signals. Based on our results we propose that the TT2/TT8/TTG1 regulon may also comprise early genes like CHS and discuss steps to further unravel the regulatory network controlling flavonoid accumulation in endothelium cells during A. thaliana seed development. 相似文献
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MYB12 and MYB22 play essential roles in proanthocyanidin and flavonol synthesis in red‐fleshed apple (Malus sieversii f. niedzwetzkyana) 下载免费PDF全文
Nan Wang Haifeng Xu Shenghui Jiang Zongying Zhang Ninglin Lu Huarong Qiu Changzhi Qu Yicheng Wang Shujing Wu Xuesen Chen 《The Plant journal : for cell and molecular biology》2017,90(2):276-292
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Characterization of an activation‐tagged mutant uncovers a role of GLABRA2 in anthocyanin biosynthesis in Arabidopsis 下载免费PDF全文
Xiaoyu Wang Xianling Wang Qingnan Hu Xuemei Dai Hainan Tian Kaijie Zheng Xiaoping Wang Tonglin Mao Jin‐Gui Chen Shucai Wang 《The Plant journal : for cell and molecular biology》2015,83(2):300-311
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Identification of key amino acids for the evolution of promoter target specificity of anthocyanin and proanthocyanidin regulating MYB factors 总被引:1,自引:0,他引:1
Simon C. Heppel Felix W. Jaffé Adam M. Takos Swen Schellmann Thomas Rausch Amanda R. Walker Jochen Bogs 《Plant molecular biology》2013,82(4-5):457-471
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The proanthocyanidin‐specific transcription factor MdMYBPA1 initiates anthocyanin synthesis under low‐temperature conditions in red‐fleshed apples 下载免费PDF全文
Nan Wang Changzhi Qu Shenghui Jiang Zijing Chen Haifeng Xu Hongcheng Fang Mengyu Su Jing Zhang Yicheng Wang Wenjun Liu Zongying Zhang Ninglin Lu Xuesen Chen 《The Plant journal : for cell and molecular biology》2018,96(1):39-55