来自台湾的Cirsium kawakamii中的内生真菌多样性
Yi-Jeng Chen1, Hui-Juan Chen2, Wen-Hsin Chung2,3
1Department of Plant Medicine, National Chiayi University, Chiayi 600, Taiwan.
Journal of fungi (Basel, Switzerland)
|November 24, 2023
概括
台湾的内菌 在台湾的内菌.
科学领域:
- 菌类学 菌类学是指菌类学.
- 植物病理学 植物病理学
- 生态生态学 生态生态学
背景情况:
- 植物内菌是居住在植物组织中的微生物,在植物健康和生态系统动态中起着至关重要的作用.
- 草原Cirsium kawakamii是台湾本土的草本,它拥有独特的真菌群体,需要对其生态意义和潜在的致病性进行调查.
- 了解内性真菌多样性对于植物疾病管理和发现新生物活性化合物至关重要.
研究的目的:
- 综合分析与台湾Cirsium kawakamii相关的内生真菌多样性.
- 为了确定主导的真菌属,并评估不同地理位置和季节的真菌群落的变化.
- 评估孤立真菌的病原性潜力,特别是类真菌,对经济重要作物.
主要方法:
- 从台湾多个地点收集的Cirsium kawakamii组织中分离和识别内菌.
- 用分子和形态学技术将真菌分离物分类为类型,类,家族和属.
- 统计分析,包括属积累曲线,香农和吉尼-辛普森指数,以及主要成分分析 (PCA),以评估真菌多样性和社区结构.
- 对小麦,土豆和果进行致病性测试,以评估选定的真菌分离物的植物致病性潜力,特别是Fusarium物种.
主要成果:
- 总共获得了1836个内性真菌分离物,代表了2个类和8个类的68个属.
- 鉴定到的主导属包括科莱托里奇姆 (Colletotrichum),福萨里姆 (Fusarium),福莫普西斯 (Phomopsis) 和西拉里亚 (Xylaria) (阿斯科米科塔 (Ascomycota),索尔达里奥米塞特 (Sordariomycetes).
- 在不同的地点和季节,真菌社区的组成有很大的不同,通过PCA观察到不同的社区结构.
- 普利镇的冬季内植物与其他季节和地点相比,表现出明显减少的α多样性.
- 几种Fusarium分离物对小麦,土豆和果表现出致病性,可能属于Fusarium tricinctum物种复合体 (FTSC).
结论:
- 在台湾,Cirsium kawakamii拥有丰富多样化的内菌群体,因地点和季节而有显著的变化.
- 已识别的真菌内植物,特别是Fusarium物种,作为植物病原体对重要的作物构成潜在威胁.
- 建议对与Cirsium kawakamii相关的Fusarium tricinctum物种复合体 (FTSC) 进行进一步的研究,以了解它们的致病机制和生态作用.
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