在表现为木超延长疾病的症状叶子组织中,木菌群的表征
Angela Alleyne1, Shanice Mason1, Yvonne Vallès1
1Faculty of Science and Technology, The University of the West Indies, Cave Hill Campus, Bridgetown BB11000, Barbados.
Journal of fungi (Basel, Switzerland)
|December 22, 2023
概括
麻瓜中超长期延长性疾病 (SED) 是由复杂的真菌群体引起的,而不是单一的病原体. 这项研究表明,各种真菌之间的相互作用,包括Elsinoë物种,有助于SED症状,这表明未来研究需要一种病菌群方法.
科学领域:
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
- 农业科学 农业科学
背景情况:
- 超延长性疾病 (SED) 对加勒比地区的麻豆产量产生了重大影响,由于多种病原体引起的类似症状,它带来了诊断挑战.
- 鉴定SED的主要致病原体是困难的,因为病原体的生长速度缓慢,以及实验室培养物中的污染问题.
- 豆SED中真菌内细胞的作用仍然在很大程度上未被探索,尽管这种疾病的流行率很高.
研究的目的:
- 描述与展示SED症状的麻瓜相关的真菌群落.
- 调查真菌相互作用和内植物对疾病发展的潜在贡献.
- 为了区分SED与其他影响木的叶子斑病.
主要方法:
- 从多个加勒比地区的生病麻豆叶组织中分离和培养真菌.
- 单独培养的粗真菌形态分析.
- 使用ITS2 amplicon测序分析症状叶子中的真菌群体组成的元基因组学分析.
主要成果:
- 多种真菌物种,包括 *Fusarium*, *Colletotrichum*, *Alternaria* 和 *Elsinoë brasiliensis* (同义词) *Sphaceloma manihoticola*),在患病的麻豆叶中被发现.
- 社区的分析表明,SED症状可能是由于真菌菌体内的相互作用引起的,涉及*Elsinoë*物种和其他真菌.
- 这项研究证实了在有症状的麻瓜中存在多种不同的真菌群落,挑战了单一致病原体的概念.
结论:
- 香超延长性疾病可能是由植物菌体内的多种真菌物种的协同相互作用引起的,而不是单一的病原体.
- 这些发现强调了SED病因学的复杂性,以及需要考虑"病原生物组"概念以有效管理疾病.
- 未来的研究应该专注于了解这些真菌相互作用,以制定针对中SED的向控制策略.
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