Identification of an Asexual Reproduction Inducer of Phytopathogenic and Toxigenic
<i>Fusarium</i>
作者:Jianhua Qi、Lihong Cheng、Yujuan Sun、Yushi Hirata、Naoki Ushida、Zhonghua Ma、Hiroyuki Osada、Toshio Nishikawa、Lan Xiang
DOI:10.1002/anie.201803329
日期:2018.7.2
configuration, of Fusarium asexual reproduction inducer (FARI), a new sesquiterpene derivative, by spectroscopic analysis, total synthesis, and conidium‐inducing assays of synthetic isomers. We have also uncovered the universality of FARI among Fusarium species. Moreover, a mechanism‐of‐action study suggested that the Gpmk1 and LaeA signaling pathways are required for conidium formation induced by FARI; conversely
无性生殖和有性生殖是植物致病性和产毒性镰刀菌生命周期中最重要的生物学事件,是造成疾病流行的原因。但是,诱导镰刀菌无性繁殖的信号分子尚不清楚。在此,我们通过光谱分析,全合成和合成异构体的分生孢子诱导测定,描述了镰刀菌无性生殖诱导剂(FARI)(一种新的倍半萜衍生物)的结构解析,包括绝对构型。我们还发现了镰刀菌中FARI的普遍性物种。此外,作用机理研究表明,FARI诱导分生孢子形成需要Gpmk1和LaeA信号通路。相反,丝裂原活化蛋白激酶的Mgv1不参与分生孢子的形成。FARI在极低的剂量和高的立体选择性下表现出分生孢子诱导活性,这可能表明存在立体特异性靶标。