由宿主抗微生物蛋白LsGRP1赋予的灰色菌抑制涉及对非抗微生物区域LsGRP1的主要病原体有针对性的操纵
Chia-Hua Lin1, Fang-Wei Liu1, Ying-Chieh Pan1
1Molecular Plant Pathology Laboratory, Department of Plant Pathology and Microbiology, National Taiwan University; No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.
Journal of agricultural and food chemistry
|August 18, 2023
概括
抗微生物蛋白LsGRP1保护百合花免受灰色菌的影响. 其非抗微生物区域LsGRP1^N增强了抗微生物区域LsGRP1^C.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 灰色菌是由圆形菌 (Botrytis elliptica) 引起的,是一种破坏性疾病,影响着花植物.
- 抗菌蛋白 (AMP) 是植物防御机制的关键组成部分.
- LsGRP1是一种在Lilium中发现的AMP,具有对灰色菌的保护功能.
研究的目的:
- 研究抗微生物蛋白LsGRP1及其非抗微生物区域LsGRP1^N在Lilium灰菌中的双重作用.
- 阐明LsGRP1^N在调节病原体反应和增强抗菌疗效方面的新型作用方式.
- 探索LsGRP1^N作为开发向抗菌剂的工具的潜力.
主要方法:
- 评估LsGRP1^N,LsGRP1和LsGRP1^C对菌体芽,菌体生长和的疾病发展的影响.
- 进行B. eliptica*细胞活力测试,以评估LsGRP1^C的致命效率,包括和没有LsGRP1^N预处理.
- 利用逆转录定量聚合酶链反应 (RT-qPCR) 和用于检测糖的体化学染色来分析基因表达和宿主防御反应.
主要成果:
- 发现非抗微生物区域LsGRP1^N促进了子发芽,但增强了B.elliptica对抗微生物区域LsGRP1^C.的敏感性.
- LsGRP1^N 预处理显著提高了 LsGRP1^C 对圆形菌的致命效率.
- LsGRP1^N治疗导致感染相关基因的表达减少,并在B. elliptica*中增加宿主防御诱导活性.
结论:
- 通过操纵病原体,LsGRP1^N表现出一种新的抗菌蛋白的作用机制,从而促进疾病抑制.
- 这些发现表明,LsGRP1^N可用于开发针对性抗菌剂,对休眠微生物有更强的疗效.
- 这项研究为植物抗微生物蛋白和真菌病原体之间的复杂相互作用提供了新的见解,为创新的疾病管理策略铺平了道路.
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