Compositional and Quantitative Insights Into Bacterial and Archaeal Communities of South Pacific Deep-Sea Sponges (Demospongiae and Hexactinellida)


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berenike.bick [ at ] hifmb.de

Abstract

In the present study, we profiled bacterial and archaeal communities from 13 phylogenetically diverse deep-sea sponge species (Demospongiae and Hexactinellida) from the South Pacific by 16S rRNA-gene amplicon sequencing. Additionally, the associated bacteria and archaea were quantified by real-time qPCR. Our results show that bacterial communities from the deep-sea sponges are mostly host-species specific similar to what has been observed for shallow-water demosponges. The archaeal deep-sea sponge community structures are different from the bacterial community structures in that they are almost completely dominated by a single family, which are the ammonia-oxidizing genera within the Nitrosopumilaceae. Remarkably, the archaeal communities are mostly specific to individual sponges (rather than sponge-species), and this observation applies to both hexactinellids and demosponges. Finally, archaeal 16s gene numbers, as detected by quantitative real-time PCR, were up to three orders of magnitude higher than in shallow-water sponges, highlighting the importance of the archaea for deep-sea sponges in general.



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52312
DOI https://www.doi.org/10.3389/fmicb.2020.00716

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Steinert, G. , Busch, K. , Bayer, K. , Kodami, S. , Arbizu, P. M. , Kelly, M. , Mills, S. , Erpenbeck, D. , Dohrmann, M. , Wörheide, G. , Hentschel, U. and Schupp, P. J. (2020): Compositional and Quantitative Insights Into Bacterial and Archaeal Communities of South Pacific Deep-Sea Sponges (Demospongiae and Hexactinellida) , Frontiers in Microbiology, 11 (716), 716- . doi: https://www.doi.org/10.3389/fmicb.2020.00716


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