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通过质外体蛋白几丁质酶样 1 重新定位含有重复序列的真菌效应物可阻止其毒性。

Re-localization of a repeat-containing fungal effector by apoplastic protein Chitinase-like 1 blocks its toxicity.

机构信息

State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Nanjing Agricultural University, Nanjing, 210095, China.

Engineering Research Center of Ministry of Education for Cotton Germplasm Enhancement and Application, Nanjing Agricultural University, Nanjing, 210095, China.

出版信息

Nat Commun. 2024 Nov 22;15(1):10122. doi: 10.1038/s41467-024-54470-0.

DOI:10.1038/s41467-024-54470-0
PMID:39578470
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11584738/
Abstract

A fungal effector that is toxic to plant cells was identified in Verticillium dahliae. The effector contains a non-canonical Common in several Fungal Extracellular Membrane proteins (CFEM) domain, a tandem repeat region consisting of four 14-amino acid repeats rich in proline, and a C-terminal region, thus is designated V. dahliae tetrapeptide repeat protein (VdTRP). The membrane targeting of VdTRP is vital for its cell toxicity. CFEM mediates the membrane targeting and the tandem repeat region exerts the toxic function upon cell membrane. The chitinase-like 1 (CTL1), an essential apoplastic protein of cotton, can redirect VdTRP from cell membrane to apoplast. Transgenic cotton overexpressing CTL1 greatly enhances cotton resistance to V. dahliae without affecting cotton growth and development, implicating its potential application in breeding cotton with high wilt resistance. Our data demonstrates that genetic manipulation of effector target constitutes potential strategy for improving crop resistance to fungal pathogens.

摘要

在黄萎病菌中鉴定到一种对植物细胞有毒的真菌效应子。该效应子含有一个非典型的普通真菌细胞外膜蛋白 (CFEM) 结构域、一个由四个富含脯氨酸的 14 个氨基酸重复组成的串联重复区和一个 C 末端区,因此被命名为黄萎病菌四肽重复蛋白 (VdTRP)。VdTRP 的膜靶向对于其细胞毒性至关重要。CFEM 介导膜靶向,串联重复区在细胞膜上发挥毒性功能。几丁质酶样 1 (CTL1) 是棉花必需的质外体蛋白,它可以将 VdTRP 从细胞膜重新定向到质外体。过表达 CTL1 的转基因棉花显著增强了棉花对黄萎病菌的抗性,而不影响棉花的生长和发育,这暗示了其在培育高枯萎病抗性棉花方面的潜在应用。我们的数据表明,效应子靶标的遗传操作构成了提高作物对真菌病原体抗性的潜在策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/7b543036602a/41467_2024_54470_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/98e9d6abc9fc/41467_2024_54470_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/edd5d69d7240/41467_2024_54470_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/9e59c8045580/41467_2024_54470_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/15185f4c26c6/41467_2024_54470_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/4193611050fe/41467_2024_54470_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/ff22063fb817/41467_2024_54470_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/ac740dff1d9b/41467_2024_54470_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/1e8843d5643d/41467_2024_54470_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/7b543036602a/41467_2024_54470_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/98e9d6abc9fc/41467_2024_54470_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/edd5d69d7240/41467_2024_54470_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/9e59c8045580/41467_2024_54470_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/15185f4c26c6/41467_2024_54470_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/4193611050fe/41467_2024_54470_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/ff22063fb817/41467_2024_54470_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/ac740dff1d9b/41467_2024_54470_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/1e8843d5643d/41467_2024_54470_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d617/11584738/7b543036602a/41467_2024_54470_Fig9_HTML.jpg

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