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Transient-rare Bacterial Taxa Are Assembled Neutrally across Temporal Scales.
Microbes and Environments ( IF 2.2 ) Pub Date : 2021-01-01 , DOI: 10.1264/jsme2.me20110 Sang-Hoon Lee,Taek-Seung Kim,Hee-Deung Park
Microbes and Environments ( IF 2.2 ) Pub Date : 2021-01-01 , DOI: 10.1264/jsme2.me20110 Sang-Hoon Lee,Taek-Seung Kim,Hee-Deung Park
Despite the importance of microbial communities in ecosystem functions, the mechanisms underlying the assembly of rare taxa over time are poorly understood. It remains largely unknown whether rare taxa exhibit similar assembly processes to common taxa in local communities. We herein retrieved the 16S rRNA sequences of bacteria collected bimonthly for 2 years from the Pohang wastewater treatment plant. The transient-rare taxa showed different abundance distributions from the common taxa. Transient-rare taxon assemblages also exhibited higher temporal variations than common taxon assemblages, suggesting the distinct ecological patterns of the two assemblages. A multivariate analysis revealed that environmental parameters accounted for 25.3 and 61.6% of temporal variations in the transient-rare and common taxon assemblages, respectively. The fitting of all observed taxa to a neutral community model revealed that 96.4% of the transient-rare taxa (relative abundance, 71.4%) and 73.3% of the common taxa (relative abundance, 45.6%) followed the model, suggesting that stochastic mechanisms were more important than deterministic ones in the assembly of the transient-rare taxa. Collectively, the present results indicate that the transient-rare bacterial taxa at the Pohang wastewater treatment plant differed from the common taxa in ecological patterns, suggesting that dispersal is a key process in their assembly.
中文翻译:
瞬态稀有细菌分类群在时间尺度上中性组装。
尽管微生物群落在生态系统功能中很重要,但人们对稀有分类群随时间组装的机制知之甚少。稀有分类群是否表现出与当地社区常见分类群相似的组装过程,目前仍然未知。我们在此检索了从浦项污水处理厂 2 年每两个月收集一次的细菌 16S rRNA 序列。短暂的稀有类群显示出与常见类群不同的丰度分布。瞬态稀有分类群组合也表现出比常见分类群组合更高的时间变化,表明这两个组合具有不同的生态模式。多变量分析显示,环境参数分别占瞬态稀有和常见分类群组合的时间变化的 25.3% 和 61.6%。将所有观察到的分类群与中性群落模型拟合显示,96.4% 的瞬时稀有分类群(相对丰度,71.4%)和 73.3% 的常见分类群(相对丰度,45.6%)遵循该模型,表明随机机制在短暂的稀有分类群的组装中比确定性的更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。表明在瞬态稀有分类群的组装中,随机机制比确定性机制更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。表明在瞬态稀有分类群的组装中,随机机制比确定性机制更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。
更新日期:2021-01-01
中文翻译:
瞬态稀有细菌分类群在时间尺度上中性组装。
尽管微生物群落在生态系统功能中很重要,但人们对稀有分类群随时间组装的机制知之甚少。稀有分类群是否表现出与当地社区常见分类群相似的组装过程,目前仍然未知。我们在此检索了从浦项污水处理厂 2 年每两个月收集一次的细菌 16S rRNA 序列。短暂的稀有类群显示出与常见类群不同的丰度分布。瞬态稀有分类群组合也表现出比常见分类群组合更高的时间变化,表明这两个组合具有不同的生态模式。多变量分析显示,环境参数分别占瞬态稀有和常见分类群组合的时间变化的 25.3% 和 61.6%。将所有观察到的分类群与中性群落模型拟合显示,96.4% 的瞬时稀有分类群(相对丰度,71.4%)和 73.3% 的常见分类群(相对丰度,45.6%)遵循该模型,表明随机机制在短暂的稀有分类群的组装中比确定性的更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。表明在瞬态稀有分类群的组装中,随机机制比确定性机制更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。表明在瞬态稀有分类群的组装中,随机机制比确定性机制更重要。总的来说,目前的结果表明,浦项污水处理厂的暂时性稀有细菌类群在生态模式上与常见类群不同,这表明扩散是它们组装的关键过程。