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一种来自HW的被认为是MAMP的蛋白质激发子PeVn1触发植物免疫反应。

A protein elicitor PeVn1 from HW recognized as a MAMP triggers plant immunity response.

作者信息

Zhang Ziyu, Wang Dong, Dong Baozhu, Wang Yu, Xu Jialu, Hao Jianxiu, Zhou Hongyou

机构信息

College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Key Laboratory of Biopesticide Creation and Resource Utilization for Autonomous Region Higher Education Institutions, Hohhot, China.

出版信息

Front Plant Sci. 2024 Oct 10;15:1468437. doi: 10.3389/fpls.2024.1468437. eCollection 2024.

DOI:10.3389/fpls.2024.1468437
PMID:39450088
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11499194/
Abstract

Protein elicitors can induce plant systemic resistance to pathogens. The recognition of a potential elicitor activates intracellular signaling events, leading to plant resistance against pathogens. In this study, a novel protein elicitor was isolated from the culture filtrate of and named PeVn1, which can induce cell death in several plant species. The PeVn1 gene was then cloned and expressed in . The recombinant protein PeVn1 triggers cell death in in and dependent manner. Through bioassay analysis showed that the recombinant PeVn1 induced early defense induction events, such as reactive oxygen species burst, callose deposition and the activation of defense hormone signaling pathways and defense enzyme activities. Moreover, PeVn1 significantly enhanced resistance of to , and mosaic virus and tomato to pv. DC3000. In conclusion, our study reveals that PeVn1 protein as a microbe-associated molecular pattern can induce plant immune responses, which provides a theoretical basis for the development of novel protein-induced disease resistance agents.

摘要

蛋白质激发子可诱导植物对病原体产生系统抗性。对潜在激发子的识别会激活细胞内信号转导事件，从而使植物对病原体产生抗性。在本研究中，从[具体名称未给出]的培养滤液中分离出一种新型蛋白质激发子，并将其命名为PeVn1，它可在多种植物物种中诱导细胞死亡。随后克隆了PeVn1基因并在[具体名称未给出]中表达。重组蛋白PeVn1以[具体方式未明确给出]依赖性方式在[具体物种未明确给出]中触发细胞死亡。通过生物测定分析表明，重组PeVn1诱导了早期防御诱导事件，如活性氧爆发、胼胝质沉积以及防御激素信号通路的激活和防御酶活性。此外，PeVn1显著增强了[具体植物未明确给出]对[具体病原体未明确给出]、[具体病原体未明确给出]和花叶病毒以及番茄对[具体病原体未明确给出]pv. DC3000的抗性。总之，我们的研究表明，PeVn1蛋白作为一种微生物相关分子模式可诱导植物免疫反应，这为新型蛋白质诱导抗病剂的开发提供了理论基础。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/d99b37819cd2/fpls-15-1468437-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/2d596fdcd04b/fpls-15-1468437-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/98c8492a5099/fpls-15-1468437-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/6e4bf6f37f0f/fpls-15-1468437-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/f85a6c70ca15/fpls-15-1468437-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/5cdad3d25448/fpls-15-1468437-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/e0c28842f879/fpls-15-1468437-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/b61d9b0e7c99/fpls-15-1468437-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/d99b37819cd2/fpls-15-1468437-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/2d596fdcd04b/fpls-15-1468437-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/98c8492a5099/fpls-15-1468437-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/6e4bf6f37f0f/fpls-15-1468437-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/f85a6c70ca15/fpls-15-1468437-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/5cdad3d25448/fpls-15-1468437-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/e0c28842f879/fpls-15-1468437-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/b61d9b0e7c99/fpls-15-1468437-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c852/11499194/d99b37819cd2/fpls-15-1468437-g008.jpg

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