Analogous assembly mechanisms and functional guilds govern prokaryotic communities in mangrove ecosystems of China and South America.
Analogous assembly mechanisms and functional guilds govern prokaryotic communities in mangrove ecosystems of China and South America.
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DOI：
10.1128/spectrum.01577-23
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发表时间：
2023-09-05
影响因子：
3.7
通讯作者：
Li, Meng
中科院分区：
文献类型：
--
作者：
Du, Huan;Pan, Jie;Zhang, Cuijing;Yang, Xilan;Wang, Cheng;Lin, Xiaolan;Li, Jinhui;Liu, Wan;Zhou, Haokui;Yu, Xiaoli;Mo, Shuming;Zhang, Guoqing;Zhao, Guoping;Qu, Wu;Jiang, Chengjian;Tian, Yun;He, Zhili;Liu, Yang;Li, Meng
作为重要的沿海“蓝色碳汇”，红树林生态系统包含的微生物群落物种多样性尚不清楚。探索红树林湿地沉积物微生物群落的组合和结构有助于更好地了解红树林湿地的生态系统功能，如碳固存和其他生物地球化学循环。然而，与其他生物群落相比，红树林沉积物微生物群落的研究仍然有限，特别是在大空间尺度上的红树林生态系统中，红树林沉积物微生物群落可能具有不同的组成和功能。本文分析了来自中国和南美13个和8个代表性红树林生态系统的380个沉积物样本，并比较了它们的微生物特征。虽然群落组成具有明显的差异性，但两个地点的群落组合具有相似的模式：整个群落、丰富类群、稀有类群和通才类群的组合主要受随机过程驱动，具有显著的距离衰减模式，而专才类群的组合更可能与红树林生态系统内或周围其他生物的行为有关。此外，红树林沉积物微生物群落的共现和拓扑网络分析强调了两个地区硫酸盐还原原核生物的优势。此外，我们发现超过70%的基石和枢纽分类群是硫酸盐还原原核生物，这表明它们在维持红树林沉积物微生物群落的联系和稳定性方面发挥了重要作用。这项研究填补了覆盖遥远和多样化红树林生态系统的微生物组特征的大规模分析的空白。在此，我们向红树林微生物组计划（Mangrove Microbiome Initiative）提出建议，建议使用统一的引物对16S rRNA测序方案进行标准化，以便于红树林微生物组的全球范围分析，并进一步与其他生物组的参考数据集进行比较。红树林湿地是重要的生态系统，具有碳储存、物种多样性维护和海岸线稳定等重要生态功能。这些功能在很大程度上是由微生物驱动或支持的，微生物对红树林生态系统的生物地球化学循环做出了重要贡献。控制微生物群落的组成、结构和功能的机制对微生物生态学至关重要，但仍不清楚。此外，在大空间尺度上研究红树林微生物组的这些机制可以更全面地了解它们的普遍特征，并有助于理清微生物相互作用模式和微生物组功能。本研究在大空间范围内对中国和南美红树林微生物组进行了比较，发现中国和南美红树林微生物组的组合模式和关键功能行会具有相似性。整个群落表现出明显的距离衰减模式，受随机过程的强烈支配，而专家群落的聚集可能仅与红树林生态系统中生物的行为有关。此外，我们的研究结果强调了硫酸盐还原原核生物在红树林微生物群落中的优势地位及其在维持群落结构和功能稳定性方面的关键作用。
As an important coastal “blue carbon sink,” mangrove ecosystems contain microbial communities with an as-yet-unknown high species diversity. Exploring the assemblage and structure of sediment microbial communities therein can aid in a better understanding of their ecosystem functioning, such as carbon sequestration and other biogeochemical cycles in mangrove wetlands. However, compared to other biomes, the study of mangrove sediment microbiomes is limited, especially in diverse mangrove ecosystems at a large spatial scale, which may harbor microbial communities with distinct compositions and functioning. Here, we analyzed 380 sediment samples from 13 and 8 representative mangrove ecosystems, respectively, in China and South America and compared their microbial features. Although the microbial community compositions exhibited strong distinctions, the community assemblage in the two locations followed analogous patterns: the assemblages of the entire community, abundant taxa, rare taxa, and generalists were predominantly driven by stochastic processes with significant distance-decay patterns, while the assembly of specialists was more likely related to the behaviors of other organisms in or surrounding the mangrove ecosystems. In addition, co-occurrence and topological network analysis of mangrove sediment microbiomes underlined the dominance of sulfate-reducing prokaryotes in both the regions. Moreover, we found that more than 70% of the keystone and hub taxa were sulfate-reducing prokaryotes, implying their important roles in maintaining the linkage and stability of the mangrove sediment microbial communities. This study fills a gap in the large-scale analysis of microbiome features covering distantly located and diverse mangrove ecosystems. Here, we propose a suggestion to the Mangrove Microbiome Initiative that 16S rRNA sequencing protocols should be standardized with a unified primer to facilitate the global-scale analysis of mangrove microbiomes and further comparisons with the reference data sets from other biomes. Mangrove wetlands are important ecosystems possessing valuable ecological functions for carbon storage, species diversity maintenance, and coastline stabilization. These functions are greatly driven or supported by microorganisms that make essential contributions to biogeochemical cycles in mangrove ecosystems. The mechanisms governing the microbial community assembly, structure, and functions are vital to microbial ecology but remain unclear. Moreover, studying these mechanisms of mangrove microbiomes at a large spatial scale can provide a more comprehensive insight into their universal features and can help untangle microbial interaction patterns and microbiome functions. In this study, we compared the mangrove microbiomes in a large spatial range and found that the assembly patterns and key functional guilds of the Chinese and South American mangrove microbiomes were analogous. The entire communities exhibited significant distance-decay patterns and were strongly governed by stochastic processes, while the assemblage of specialists may be merely associated with the behaviors of the organisms in mangrove ecosystems. Furthermore, our results highlight the dominance of sulfate-reducing prokaryotes in mangrove microbiomes and their key roles in maintaining the stability of community structure and functions.
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影响因子：
18.3
作者：
Donato, Daniel C.;Kauffman, J. Boone;Kanninen, Markku
通讯作者：
Kanninen, Markku
影响因子：
2.9
作者：
Deborde, Jonathan;Marchand, Cyril;Meziane, Tarik
通讯作者：
Meziane, Tarik
影响因子：
6.1
作者：
CASWELL, H
通讯作者：
CASWELL, H
DOI：
10.1099/13500872-140-5-1069
发表时间：
1994-05-01
期刊：
MICROBIOLOGY-UK
影响因子：
--
作者：
BEVIVINO, A;TABACCHIONI, S;VISCA, P
通讯作者：
VISCA, P
影响因子：
5.8
作者：
Fernandez-Cadena, J. C.;Ruiz-Fernandez, P. S.;De la Iglesia, R.
通讯作者：
De la Iglesia, R.