内生真菌群体的组成和功能对草基因型和疾病耐药性的反应
Hongjun Yang1,2, Xu Zhang1,2, Rui Wang1
1College of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang, Jiangsu, China.
PeerJ
|May 13, 2025
概括
草品种的栽培品种
科学领域:
- 植物病理学 植物病理学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 植物内生微生物组为提高作物病原体耐药性的化学农药提供了一个可持续的替代方案.
- 在像草这样的多年果植物中对真菌群落的研究仍然有限.
- 了解这些微生物群对于开发有效的生物控制策略至关重要.
研究的目的:
- 为了全面描述三种草品种 ("白色精灵"",Tokun"",Akihime") 的真菌群体组成和多样性.
- 评估这些品种对真菌病原体 *Colletotrichum gloeosporioides* 和 *Alternaria alternata* 的耐病性.
- 为了将真菌社区结构与草植物的病原体耐药性相关联.
主要方法:
- 内部转录间隔器 (ITS) rRNA amplicon测序用于分析根,茎和叶组织中的真菌群体.
- 使用隔离培养方法获得和识别真菌菌株.
- 进行了致病性测试,以评估草品种对特定真菌病原体的耐药性.
主要成果:
- "白精灵"对*Colletotrichum gloeosporioides*和*Alternaria alternata*表现出优越的抵抗力,其次是"Tokun",而"Akihime"表现出较弱的抵抗力.
- 总共有来自34个属的258种真菌菌株被分离出来;像*Trichoderma*和*Talaromyces*这样的有益属在"白精灵"中很丰富.
- 致病性属 (*Colletotrichum*, *Alternaria*, *Fusarium*) 在易受感染的"Akihime"品种中更为普遍,表明基因型特定的微生物社区结构.
结论:
- 草品种的基因型显著影响内菌菌群体的组成和结构.
- 植物对病原体的耐药性是塑造相关微生物群落的关键因素.
- 这些发现支持对草疾病的生物控制,并为改善种植的植物微生物组工程提供信息.
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