对一株来自沿海潮滩的新型黄杆菌科菌株的分类学、基因组学和生态学见解。
Taxonomic, genomic, and ecological insights into a novel Flavobacteriaceae strain from coastal tidal flats.
作者信息
Wang Haohao, Liu Jiahui, Guo Yifan, Chen Yaqin, Zhang Chi, He Shan, Zhang Weiyan, Ding Lijian
机构信息
College of Food Science and Engineering, Ningbo University, Ningbo, 315800, P. R. China.
Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo, 315800, P. R. China.
出版信息
BMC Microbiol. 2025 May 30;25(1):344. doi: 10.1186/s12866-025-04069-2.
BACKGROUND
Tidal flats are vital coastal ecosystems that play a significant role in organic carbon accumulation and biogeochemical cycles. Members of the family Flavobacteriaceae is known for its ability to degrade complex organic matter, including polysaccharides. However, the ecological roles and metabolic capabilities of Flavobacteriaceae in tidal flat environments remain underexplored.
RESULTS
In this study, we isolated and characterized a novel bacterium, strain NBU2967, from the tidal flats of Meishan Island in the East China Sea. Phylogenetic and genomic analyses identified this strain as a new genus and species within the family Flavobacteriaceae, for which we propose the name Meishania litoralis gen. nov., sp. nov. Comprehensive polyphasic characterization, including morphological, physiological, chemotaxonomic, and genomic analyses, confirmed its distinct taxonomic status. Genomic analysis revealed a diverse set of carbohydrate-active enzymes (CAZymes), along with multiple metabolic pathways associated with carbon and sulfur cycling, highlighting the strain's potential adaptation to organic-rich marine environments. Comparative genomic and pangenome analyses further demonstrated significant genetic divergence from related taxa. Environmental distribution data revealed that the newly proposed genus Meishania is widely distributed across global marine ecosystems.
CONCLUSIONS
We isolated and characterized a novel bacterium, designated NBU2967 (= KCTC 82912 = MCCC 1K06391), for which we propose the name Meishania litoralis gen. nov., sp. nov. This strain is classified as a new genus within the family Flavobacteriaceae. The strain's ability to process both carbon and sulfur compounds underscores its ecological significance in marine ecosystems. These findings provide novel insights into the ecological functions of the family Flavobacteriaceae in coastal tidal flats environments and enhance our understanding of microbial-mediated degradation and transformation of chemical compounds in dynamic coastal ecosystems.
背景
潮滩是重要的海岸生态系统，在有机碳积累和生物地球化学循环中发挥着重要作用。黄杆菌科成员以其降解包括多糖在内的复杂有机物的能力而闻名。然而，黄杆菌科在潮滩环境中的生态作用和代谢能力仍未得到充分研究。
结果
在本研究中，我们从中国东海梅山岛的潮滩中分离并鉴定了一种新型细菌，菌株NBU2967。系统发育和基因组分析确定该菌株为黄杆菌科内的一个新属和新种，我们将其命名为滨海梅氏菌（Meishania litoralis），新属，新种。包括形态学、生理学、化学分类学和基因组分析在内的综合多相表征证实了其独特的分类地位。基因组分析揭示了一组多样的碳水化合物活性酶（CAZymes），以及与碳和硫循环相关的多种代谢途径，突出了该菌株对富含有机物的海洋环境的潜在适应性。比较基因组和泛基因组分析进一步证明了与相关分类群的显著遗传差异。环境分布数据表明，新提出的梅氏菌属广泛分布于全球海洋生态系统中。
结论
我们分离并鉴定了一种新型细菌，命名为NBU2967（=KCTC 82912 = MCCC 1K06391），我们将其命名为滨海梅氏菌，新属，新种。该菌株被归类为黄杆菌科内的一个新属。该菌株处理碳和硫化合物的能力突出了其在海洋生态系统中的生态意义。这些发现为黄杆菌科在沿海潮滩环境中的生态功能提供了新的见解，并增强了我们对动态沿海生态系统中微生物介导的化合物降解和转化的理解。
Zotero 插件