生长素
侧根
邻氨基苯甲酸
细胞生物学
生物
细胞壁
串扰
胚芽鞘
根际
生物化学
植物
化学
拟南芥
突变体
细菌
基因
物理
遗传学
光学
作者
Yu Chen,Yue Fu,Yanwei Xia,Youzhi Miao,Jiahui Shao,Wei Xuan,Yunpeng Liu,Weibing Xun,Yan Qu,Qirong Shen,Ruifu Zhang
出处
期刊:Cell Reports
[Elsevier]
日期:2024-04-01
卷期号:43 (4): 114030-114030
标识
DOI:10.1016/j.celrep.2024.114030
摘要
Trichoderma spp. have evolved the capacity to communicate with plants by producing various secondary metabolites (SMs). Nonhormonal SMs play important roles in plant root development, while specific SMs from rhizosphere microbes and their underlying mechanisms to control plant root branching are still largely unknown. In this study, a compound, anthranilic acid (2-AA), is identified from T. guizhouense NJAU4742 to promote lateral root development. Further studies demonstrate that 2-AA positively regulates auxin signaling and transport in the canonical auxin pathway. 2-AA also partly rescues the lateral root numbers of CASP1pro:shy2-2, which regulates endodermal cell wall remodeling via an RBOHF-induced reactive oxygen species burst. In addition, our work reports another role for microbial 2-AA in the regulation of lateral root development, which is different from its better-known role in plant indole-3-acetic acid biosynthesis. In summary, this study identifies 2-AA from T. guizhouense NJAU4742, which plays versatile roles in regulating plant root development.
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