假定含有SET域的蛋白质在Phytophthora capsici中起着重要的作用
Bingting Lai1, Hengyuan Guo1, Kaidi Zhang1
1Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, Danzhou Invasive Species Observation and Research Station of Hainan Province, School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China.
Microbiological research
|August 22, 2025
概括
植物 (Phytophthora capsici) 的SET域蛋白 (PcSETs) 对虫的生长和致病性至关重要. 删除PcSET-A,PcSET-B或PcSET-C基因显著降低了花和毒性,突出显示它们是控制植物疾病的目标.
科学领域:
- 植物病理学
- 分子菌学
- 虫遗传学
背景情况:
- 植物虫在各种作物中引起破坏性疾病,导致全球产量大幅下降.
- 分子因素,包括效应蛋白和表观遗传调节剂,是P. capsici的致病性的关键.
- 含有SET域的蛋白质参与调节卵巢细胞的基因表达和发育.
研究的目的:
- 在P. capsici中识别和描述含有SET域的蛋白质.
- 研究特定的SET域蛋白在P. capsici生长,化和致病性的作用.
- 评估PCSET作为植物疾病管理目标的潜力.
主要方法:
- 在P. capsici基因组中识别SET域蛋白的生物信息分析.
- 在宿主感染期间识别候选效应基因的转录组分析.
- 针对基因删除的CRISPR-Cas9和同源重组.
- 基因删除突变体的表型分析,包括生长,化和致病性测试.
主要成果:
- 在P. capsici中发现了56种含有SET域的蛋白质,预计有35种是效应蛋白.
- 在感染期间,13个候选效应基因被上调.
- 删除PcSET-A和PcSET-B会影响植物生长,而 ΔPcset-C则不会.
- 干扰PcSET-A,PcSET-B和PcSET-C减少了胞分泌并消除了病原性.
- 这三种基因的删除没有影响动物释.
结论:
- 含有SET域的蛋白质在P. capsici的形态和病理发育中起着至关重要的作用.
- PcSET-A,PcSET-B和PcSET-C对于P. capsici的毒性和无性分娩至关重要.
- 这些PCSET蛋白代表了开发新策略控制P. capsici诱导的植物疾病的有希望的目标.
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