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中科院植物激素研究获突破: 发现独脚金内酯信号转导中的双功能抑制蛋白

北京时间6月11日23点,中国科学院遗传与发育生物学研究所李家洋院士团队在国际著名期刊《自然》在线发表了题为“Transcriptional regulation of strigolactone signalling in Arabidopsis”的研究论文(DOI:10.1038/s41586-020-2382-x.),系统鉴定了拟南芥中独脚金内酯(Strigolactone, SL)的早期响应基因,阐明了独脚金内酯调控分枝发育、叶片形状以及花青素积累的分子机制,突破了独脚金内酯信号途径研究的瓶颈,发现SMXL6、SMXL7和SMXL8(简称SMXL6,7,8)作为转录因子调控自身转录,同时作为转录抑制蛋白调控分枝等重要发育过程,揭示了一种全新的植物激素信号转导机制。

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