Chloroflexi Dominate the Deep-Sea Golf Ball Sponges Craniella zetlandica and Craniella infrequens Throughout Different Life Stages

Busch, Kathrin, Wurz, Erik, Rapp, Hans T., Bayer, Kristina, Franke, Andrea and Hentschel, Ute (2020) Chloroflexi Dominate the Deep-Sea Golf Ball Sponges Craniella zetlandica and Craniella infrequens Throughout Different Life Stages Frontiers in Marine Science, 7 . Art.Nr. 674. DOI 10.3389/fmars.2020.00674.

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Abstract

Deep-sea sponge grounds are underexplored ecosystems that provide numerous goods and services to the functioning of the deep-sea. This study assessed the prokaryotic diversity in embryos, recruits, and adults of Craniella zetlandica and Craniella infrequens, common and abundant representatives of deep-sea sponge grounds in the North Atlantic. Our results reveal that symbiont transmission in the two Craniella sponge species likely occurs vertically, as highly similar microbial consortia have been identified in adults, embryos, and recruits. Moreover, transmission electron microscopy revealed high abundances of sponge-associated microorganisms, among which Chloroflexi (SAR202) were identified as common representatives by amplicon sequencing and fluorescence in situ hybridization (FISH). Equal diversity metrices, a similar overall prokaryotic community composition and a distinct dominance of the phylum Chloroflexi within all life stages are the key findings of our analyses. Information such as presented here provide understanding on the recruitment of deep-sea sponge holobionts which is needed to develop integrated management tools of such vulnerable marine ecosystems.

Document Type: Article
Additional Information: Accession no. for the data repository: PRJNA612549
Keywords: vulnerable marine ecosystems, sponges, Craniella, Chloroflexi, symbiosis, early life stages, amplicon sequencing, fluorescence in situ hybridization
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-MS Marine Symbioses
Refereed: Yes
DOI etc.: 10.3389/fmars.2020.00674
ISSN: 2296-7745
Related URLs:
Projects: SponGES
Date Deposited: 04 Aug 2020 11:36
Last Modified: 17 Sep 2020 06:44
URI: http://eprints.uni-kiel.de/id/eprint/50267

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