FHY3 and FAR1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis

来源 :中国遗传学会第九次全国会员代表大会暨学术研讨会 | 被引量 : 0次 | 上传用户：zhangdeting

【摘要】

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【作者】

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Weijiang Tang Qiang Ji Yongping Huang Zhimin Jiang Manzhu Bao Haiyang Wang Rongcheng Lin

【机构】

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Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, Ch

【出处】

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中国遗传学会第九次全国会员代表大会暨学术研讨会

【发表日期】

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2013年11期

【关键词】

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FHY3 light ABA signaling crosstalk

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　　Light and phytohormone abscisic acid (ABA) regulate overlapping processes in plants, such as seed germination and seedling development.However, the molecular mechanism underlying the interaction between light and ABA signaling is largely unknown.Here, we show that FAR-RED ELONGATED HYPOCOTYL3 (FHY3) and FAR-RED IMPAIRED RESPONSE1 (FAR1), two key positive transcription factors in the phytochrome A pathway, directly bind to the promoter of ABI5 and activate its expression.Disruption of FHY3 and/or FAR1 reduces sensitivity to ABA-mediated inhibition of seed germination, seedling development, and primary root growth.

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FHY3 and FAR1 Transcription Factors Integrate Light and Abscisic Acid Signaling in Arabidopsis

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