土壤和树皮的生物多样性在葡萄园之间形成了独立的岛屿,这些岛屿不受距离或管理制度的影响
Lucie Jiraska1, Beatrix Jones1, Sarah J Knight1
1The School of Biological Sciences, University of Auckland, Auckland, New Zealand.
Environmental microbiology
|October 31, 2023
概括
农业生态系统的微生物群落是由息地和葡萄园的位置塑造的,而不是管理实践. 生物多样性在不同地点之间存在差异,但距离并不决定这些微生物差异的程度.
科学领域:
- 微生物生态学 微生物生态学
- 农业生态系统生物多样性 生物多样性
- 环境微生物学 环境微生物学
背景情况:
- 物理息地和地理位置是农业生态系统微生物群落的主要驱动因素.
- 现有数据表明,微生物社区的相似性随着地理距离的增加而减少.
- 缺乏解释这些模式的综合假设.
研究的目的:
- 在葡萄园中对影响微生物社区聚集的因素进行正式化和测试假设.
- 研究息地,地理位置和管理制度对微生物群落的影响.
- 评估微生物社区相似性的距离衰变关系.
主要方法:
- 测序了380万个细菌16S,真菌ITS2和非真菌真核生物COI条形码.
- 分析了6个葡萄园地点的108个土壤和树皮样本.
- 传统与保护管理制度的比较.
主要成果:
- 息地和葡萄园的位置都对微生物社区组合产生了重大影响.
- 息地是细菌群落的强大因素,而管理制度没有影响.
- 没有发现社区相似性距离衰变的一致证据,除了树皮细菌社区.
结论:
- 葡萄园地区在息地内充当独立的生物多样性岛屿.
- 微生物生物多样性在各个地点之间在很大程度上存在差异,不管它们之间的距离有多大.
- 息地和地点,而不是管理,是葡萄园微生物群落的关键决定因素.
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