Root branching toward water involves posttranslational modification of transcription factor ARF7

作者：Beatriz Orosa-Puente, Nicola Leftley, Daniel von Wangenheim, Jason Banda, Anjil Kumar Srivastava, Kristine Hill, Jekaterina Truskina, Rahul Bhosale, Emily Morris, Moumita Srivastava, Britta M. C. Kümpers, Tatsuaki Goh, Hidehiro Fukaki, Joop E. M. Vermeer, Teva Vernoux, José R. Dinneny, Andrew P. French, Anthony Bishopp, Ari Sadanandom, Malcolm J. Bennett · 发表于：Science · 年份：2018 · DOI：10.1126/science.aau3956 · 被引用次数：293 · 研究领域：Plant Molecular Biology Research、Plant nutrient uptake and metabolism、Photosynthetic Processes and Mechanisms

Rooting out the mechanism of asymmetry Plant roots grow not in response to architectural blueprints but rather in search of scarce resources in the soil. Orosa-Puente et al. show why a new lateral root emerges on the damp side of a root rather than the dry side (see the Perspective by Giehl and von Wirén). The transcription factor ARF7 is found across the whole root but acquires a posttranslational modification on the dry side of the root, which represses its function. ARF7 on the damp side remains functional and is thus able to initiate the signaling cascade that leads to a new lateral root. Science , this issue p. 1407 ; see also p. 1358