三体:来自中美洲和南美洲的土壤中的Harzianum Clade
Adnan Ismaiel1, Prashant P Jambhulkar2, Parimal Sinha3
1Environmental Microbial & Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD 20705, USA.
Journal of fungi (Basel, Switzerland)
|December 27, 2024
概括
生物控制剂,如Trichoderma是可持续农业的关键. 这项研究重新识别了140多种Trichoderma菌株,揭示了南美和中美洲的11种,有助于生物控制产品的开发.
科学领域:
- 农业科学 农业科学
- 菌类学 菌类学是指菌类学.
- 可持续农业 可持续农业
背景情况:
- 由于环境和健康问题,生物控制剂越来越多地用于可持续农业.
- 三体物种,特别是T. harzianum,是生物杀菌剂中常见的活性成分.
- 对T. harzianum的错误识别是普遍存在的,因为Harzianum类 (HC) 包含超过95种神秘物种.
研究的目的:
- 准确识别来自南美和中美洲土壤的Harzianum类 (HC) 中的Trichoderma物种.
- 为了解决围绕T. harzianum物种复杂的分类学模两可.
- 确定在生物控制和生物肥料产品中潜在使用的主导HC物种.
主要方法:
- 用 tef1α,rpb2 和 ITS 基因序列进行的遗传学分析.
- 从南美洲和中美洲的土壤调查中重新识别了49个先前识别的T. harzianum菌株.
- 整合了来自五项调查的数据,共计148个HC菌株,与当前的分类学数据.
主要成果:
- 从分析的菌株中,在Harzianum类 (HC) 中鉴定出11种不同的Trichoderma物种.
- 确定了T. afroharzianum,T. lentiforme和T. endophyticum作为主导物种.
- 此外,T. azevedoi和T. harzianum也被发现在该地区的HC中普遍存在.
结论:
- 这项研究提供了第一个关于南美和中美洲土壤中HC内主导的Trichoderma物种的全面报告.
- 准确识别Trichoderma物种对于有效的生物控制和生物肥料应用至关重要.
- 这些发现将指导选择优质Trichoderma菌株,用于开发该地区的农产品.
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