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一个新的UDP-糖基转移酶基因增强了小麦对赤霉病的抗性和脱氧雪腐镰刀菌烯醇的积累。 （原英文文本表述似乎不太完整准确，这是基于现有内容尽量通顺的翻译）

, a Novel UDP-Glycosyltransferase Gene Enhances the Resistance to FHB and DON Accumulation in Wheat.

作者信息

He Yi, Wu Lei, Liu Xiang, Jiang Peng, Yu Lixuan, Qiu Jianbo, Wang Gang, Zhang Xu, Ma Hongxiang

机构信息

CIMMYT-JAAS Joint Center for Wheat Diseases, Jiangsu Academy of Agricultural Sciences, Nanjing, China.

Tibet Agriculture and Animal Husbandry University, Linzhi, China.

出版信息

Front Plant Sci. 2020 Oct 16;11:574775. doi: 10.3389/fpls.2020.574775. eCollection 2020.

DOI:10.3389/fpls.2020.574775
PMID:33178244
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7596251/
Abstract

head blight (FHB), a devastating wheat disease, results in loss of yield and production of mycotoxins including deoxynivalenol (DON) in infected grains. DON is harmful to human and animal health and facilitates the spread of FHB symptoms. Its conversion into DON-3-glucoside (D3G) by UDP-glycosyltransferases (UGTs) is correlated with FHB resistance, and only few gene members in wheat have been investigated. Here, and DON-induced expression in the resistant cultivar Sumai 3 was cloned and characterized. TaUGT6::GFP was subcellularly located throughout cells. Purified TaUGT6 protein could convert DON into D3G to some extent . Transformation of into increased root tolerance when grown on agar plates containing DON. Furthermore, overexpression in wheat showed improved resistance to spread after . inoculation. Overall, this study provides useful insight into a novel gene for FHB resistance in wheat.

摘要

赤霉病（FHB）是一种毁灭性的小麦病害，会导致产量损失以及在受感染的谷物中产生包括脱氧雪腐镰刀菌烯醇（DON）在内的霉菌毒素。DON对人类和动物健康有害，并会促进赤霉病症状的传播。UDP-糖基转移酶（UGT）将其转化为DON-3-葡萄糖苷（D3G）与抗赤霉病性相关，而小麦中只有少数基因成员得到了研究。在此，从小麦抗赤霉病品种苏麦3号中克隆并鉴定了受DON诱导的基因。TaUGT6::GFP定位于整个细胞的亚细胞中。纯化的TaUGT6蛋白能在一定程度上将DON转化为D3G。将其转入拟南芥后，在含有DON的琼脂平板上生长时，根系耐受性增强。此外，在小麦中过表达TaUGT6后，在接种赤霉病菌后，对赤霉病传播的抗性有所提高。总体而言，本研究为小麦抗赤霉病的一个新基因提供了有用的见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1bcc/7596251/674ed9221db7/fpls-11-574775-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1bcc/7596251/674ed9221db7/fpls-11-574775-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1bcc/7596251/7d3308c47171/fpls-11-574775-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1bcc/7596251/c36610bed1f6/fpls-11-574775-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1bcc/7596251/674ed9221db7/fpls-11-574775-g008.jpg

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