Functional characterization and taxonomic classification of novel gammaproteobacterial diversity in sponges

IF 3.3 2区 生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Viet Hung Nguyen , Bernd Wemheuer , Weizhi Song , Holly Bennett , Giorgia Palladino , Ilia Burgsdorf , Sofia Sizikov , Laura Steindler , Nicole S. Webster , Torsten Thomas
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引用次数: 1

Abstract

Sponges harbour exceptionally diverse microbial communities, whose members are largely uncultured. The class Gammaproteobacteria often dominates the microbial communities of various sponge species, but most of its diversity remains functional and taxonomically uncharacterised. Here we reconstructed and characterised 32 metagenome-assembled genomes (MAGs) derived from three sponge species. These MAGs represent ten novel species and belong to seven orders, of which one is new. We propose nomenclature for all these taxa. These new species comprise sponge-specific bacteria with varying levels of host specificity. Functional gene profiling highlights significant differences in metabolic capabilities across the ten species, though each also often exhibited a large degree of metabolic diversity involving various nitrogen- and sulfur-based compounds. The genomic features of the ten species suggest they have evolved to form symbiotic interaction with their hosts or are well-adapted to survive within the sponge environment. These Gammaproteobacteria are proposed to scavenge substrates from the host environment, including metabolites or cellular components of the sponge. Their diverse metabolic capabilities may allow for efficient cycling of organic matter in the sponge environment, potentially to the benefit of the host and other symbionts.

海绵中新型γ -变形菌多样性的功能表征和分类
海绵拥有异常多样化的微生物群落,其成员大多未经培养。Gammaproteobacteria类通常在各种海绵物种的微生物群落中占主导地位,但其大多数多样性仍然具有功能性和分类学上的特征。在这里,我们重建并表征了来自三种海绵物种的32个宏基因组组装基因组(MAG)。这些MAG代表了十个新物种,属于七个目,其中一个是新的。我们建议为所有这些分类群命名。这些新物种包括具有不同宿主特异性水平的海绵特异性细菌。功能基因图谱突出了十个物种代谢能力的显著差异,尽管每个物种也经常表现出很大程度的代谢多样性,涉及各种氮基和硫基化合物。这十个物种的基因组特征表明,它们已经进化成与宿主形成共生相互作用,或者很好地适应了在海绵环境中生存。这些伽马射线菌被认为可以从宿主环境中清除底物,包括海绵的代谢物或细胞成分。它们多样化的代谢能力可能允许有机物在海绵环境中有效循环,这可能有利于宿主和其他共生体。
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来源期刊
Systematic and applied microbiology
Systematic and applied microbiology 生物-生物工程与应用微生物
CiteScore
7.50
自引率
5.90%
发文量
57
审稿时长
22 days
期刊介绍: Systematic and Applied Microbiology deals with various aspects of microbial diversity and systematics of prokaryotes. It focuses on Bacteria and Archaea; eukaryotic microorganisms will only be considered in rare cases. The journal perceives a broad understanding of microbial diversity and encourages the submission of manuscripts from the following branches of microbiology:
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