与冬季小麦叶子相关的酵母社区及其对杀菌剂的敏感性
Helena Randmäe1, Regina Pütsepp2, Lee Põllumaa2
1Institute of Molecular and Cell Biology, University of Tartu, Riia 23B, 51010, Tartu, Estonia.
Scientific reports
|February 6, 2026
概括
在冬季小麦上使用的杀菌剂比目标病原体Zymoseptoria tritici更严重地伤害有益的植物圈酵母. 皮胺显示出较低的非目标效应,表明可持续疾病管理的潜力.
科学领域:
- 农业微生物学 农业微生物学
- 植物病理学 植物病理学
- 环境科学 环境科学
背景情况:
- 植物植物界是植物健康至关重要的微生物群落的庇护所.
- 了解杀菌剂对这些社区的影响对于可持续农业至关重要.
- 有益的植物界酵母多样性对植物健康和病原体耐药性至关重要.
研究的目的:
- 在冬季小麦叶上的酵母社区的特征.
- 评估植物界酵母对常用的农业杀菌剂的敏感性.
- 为了比较非目标酵母和病原体Zymoseptoria tritici对杀菌剂的敏感性.
主要方法:
- 从冬季小麦叶子中分离和识别酵母菌种.
- 鉴定出酵母分离物和Z. tritici. 的真菌杀菌剂敏感性概况.
- 酵母社区组成和生长季节的时间变化分析.
主要成果:
- 确定了34种酵母物种,主要是Basidiomycota,其中Sporobolomyces roseus是主导物种.
- 非目标酵母对梅芬特里弗卢科纳,前列康纳,皮拉克洛斯特罗宾和阿佐克西斯特罗宾的敏感性比Z.tritici.tritici更高.
- 皮胺对Z. tritici具有很高的活性,对非目标酵母的影响最小.
结论:
- 在小麦种植中使用杀菌剂可能会对有益的植物界酵母多样性产生负面影响.
- 皮胺为管理Septoria tritici斑点提供了一个有希望的替代方案,减少了目标外影响.
- 可持续的疾病管理需要仔细考虑杀菌剂对植物圈微生物生态的影响.
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