菌和类似菌的多样性存在于受鸟类原生影响的南极海上土壤中,使用metabarcoding进行评估
Vívian Nicolau Gonçalves1, Raphael Sânzio Pimenta2, Fabyano A C Lopes3
1Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brasil.
Journal of basic microbiology
|February 22, 2024
概括
南极鸟巢中的土壤真菌显示出高度的多样性,包括心理友好和潜在的特有物种. 这些由鸟类活动影响的真菌群体表现出复杂的生态作用和长距离传播的潜力.
科学领域:
- 菌类学 菌类学是指菌类学.
- 环境微生物学 环境微生物学
- 南极生态学 南极生态学
背景情况:
- 鸟类致虫土壤因鸟类的筑巢活动而发生重大变化.
- 南极的生态系统面临极端的环境条件,影响微生物生命.
- 了解土壤真菌多样性对于南极生态系统研究至关重要.
研究的目的:
- 评估在南极海域有鸟类原生影响的土壤中的土壤真菌和类似真菌的多样性.
- 为了确定主导的真菌类别及其在这些独特环境中的生态作用.
- 探索南极土壤真菌的潜在分散机制和特有性.
主要方法:
- 从鸟巢周围收集的土壤样本中对真菌DNA进行元编码.
- 对DNA的生物信息分析读取以识别真菌安普利康序列变异 (ASV).
- 计算多样性指数以比较真菌组合.
主要成果:
- 总共有1,392,784个真菌DNA阅读产生了186个ASV,其中主导的是Ascomycota.
- 检测到的真菌多样性很高,其中占主导地位的种类包括Antarctomyces sp. 和Pseudogymnoascus pannorum. 这是一个很好的例子.
- 这种真菌群体包括菌,一些病原体,心理友好性/心理耐受性种类,以及潜在的特有物种.
结论:
- 南极的鸟类原生土壤拥有丰富而复杂的真菌菌生态,尽管极端的条件.
- 真菌群体表现出不同的生态作用,并可能被鸟类和空气流分散.
- 该研究强调了在南极洲存在潜在的未被描述和特有真菌物种.
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