科莱托里 (Colletotrichum) 种 (Glomerellales,Glomerellaceae) 在中国造成了核桃炭病
Lin Zhang1, Lili Zhao1, Chen Liang2
1School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
MycoKeys
|September 9, 2024
概括
这项研究确定了12种Collettotrichum物种,包括一种新的物种C. chinensis,导致中国核桃中的炭. 它强调了区域性流行,并确认所有已识别的物种都是核桃病原体.
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
- 农业科学 农业科学
背景情况:
- 科莱托里丘姆物种是全球重要的植物病原体,影响着众多宿主.
- 中国是全球领先的核桃生产国,但中国核桃上的Colletotrichum种类的了解很少.
- 人类鼻病对核桃产量构成威胁.
研究的目的:
- 调查和识别与中国核桃上的 antracnose 相关的 Colletotrichum 物种.
- 确定这些Collettotrichum物种在核桃上的分布和病原性.
主要方法:
- 从中国七个省份的14个地区收集了470个表现出人类病症状的核桃样本 (水果和叶子).
- 隔离了165种Colletotrichum菌株,并使用多个基因 (ACT,CHS-1,GAPDH,ITS,TUB2) 的形态特征和序列分析来识别它们.
- 使用科赫的假设证实了所有已识别的物种的致病性.
主要成果:
- 鉴定了12种Collettotrichum物种,11种已知的物种和一种新物种,Collettotrichum chinensis sp. 在新的一年里.
- 记录了物种的区域流行情况,甘和山东的C. mengyinense占主导地位,北京的C. chinensis占主导地位.
- 证实所有12种种类都会在核桃上引起炭菌,C. boninense,C. citrulli和C. karsti首次在全球范围内被报告为核桃病原体.
结论:
- 这项研究提供了首份关于Collettotrichum物种在中国核桃中引起炭菌的综合报告.
- 这些发现揭示了各种各样的Colletotrichum病原体,包括新发现和以前未报告的物种,影响中国核桃产量.
- 了解物种分布和病原性对于在中国重要的核桃产业中制定有效的疾病管理策略至关重要.
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