叶状菌群在城市空气污染下保持不变,但不同表达与压力相关的基因
Valeria Stephany Flores-Almaraz1,2, Camille Truong3, Diana Hernández-Oaxaca4
1Posgrado en Ciencias Biológicas, Unidad de Posgrado, Edificio A, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Coyoacán, C.P. 04510, Distrito Federal, México.
Microbial ecology
|May 16, 2024
概括
热带层臭氧污染影响了神圣的松树林. 针中的真菌群体没有表现出臭氧症状的分类学变化,但表达了有助于氧化应激抵抗的基因,这表明它们具有保护作用.
科学领域:
- 环境科学 环境科学
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
背景情况:
- 热带层臭氧污染对全球森林生态系统构成重大威胁.
- 由于空气污染,墨西哥城附近的圣 (Abies religiosa) 森林正在减少.
- 各个树木对臭氧的反应各不相同,影响着森林的健康.
研究的目的:
- 调查神圣针中臭氧诱导症状与相关的真菌菌生物组的分类学和功能组成之间的关系.
- 为了确定真菌社区结构或基因表达模式是否与神圣针中可见的臭氧损伤相关.
- 探索真菌菌菌群在减轻宿主植物中臭氧压力的潜在作用.
主要方法:
- 使用RNA-Seq元转录和ITS2元编码技术进行综合分析.
- 在墨西哥城附近的高臭氧污染地区从神圣的树收集了针样本.
- 分析了真菌群体的分类学多样性和功能基因表达.
主要成果:
- 与臭氧相关的针头症状和真菌菌菌群的分类构成之间没有发现显著的相关性.
- 与有症状的针相比,在无症状针的真菌生物组中观察到不同的基因表达.
- 无症状针中8个差异表达的基因与抗氧化应激的抵抗有关.
结论:
- 菌菌群的分类结构似乎不是神圣针中臭氧诱导压力的主要指标.
- 菌群体可能有助于减轻神圣火中热层臭氧引起的氧化应激.
- 来自公共存储库的RNA-Seq数据对于研究真菌群落及其在植物组织中的基因表达是有效的.
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