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  • 1
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    Individual codes, GenBank accession numbers and GenBank accession links for marine sponge-associated microbial metagenomes (2016)
    PANGAEA
    In:  Supplement to: Horn, Hannes; Slaby, Beate M; Jahn, Martin T; Bayer, Kristina; Moitinho-Silva, Lucas; Förster, Frank; Abdelmohsen, Usama Ramadan; Hentschel, Ute (2016): An Enrichment of CRISPR and Other Defense-Related Features in Marine Sponge-Associated Microbial Metagenomes. Frontiers in Microbiology, 7:1751, https://doi.org/10.3389/fmicb.2016.01751
    Details
    Publication Date: 2023-03-08
    Description: Dataset contains metainformation to the samples used in the given pulication: links to Bioprojects, Biosamples, metagenome assemblies and raw data.
    Keywords: Accession number; Accession number, link; Area/locality; Date/Time of event; Depth, bottom/max; Depth, top/min; DIVER; Event label; Latitude of event; Longitude of event; Milos_052013; Piran_052013; Piran, Slovenia; Project; Sample ID; Sample type; Sampling by diver; Sequence identifier; Species; Sponge Milos Collection
    Type: Dataset
    Format: text/tab-separated-values, 39 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Metadata and NCBI-Accession numbers of Vazella pourtalesii metagenomes from the Scotian Shelf (Canada) in summer 2017 (2020)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Description: Until now few studies have explored the microbiomes of glass sponges (Hexactinellida). Vazella pourtalesii forms globally unique, monospecific sponge grounds under low-oxygen conditions on the Scotian Shelf. Using metagenomic binning we performed detailed analyses of the metabolic functional capacities of four V. pourtalesii-associated microbial taxa (SAR324, Patescibacteria, Nanoarchaeota, and Crenarchaeota).
    Keywords: Accession number, genetics; Analytical method; Area/locality; Campaign; CTD/Rosette; CTD-RO; DATE/TIME; Deep-sea Sponge Grounds Ecosystems of the North Atlantic; DEPTH, water; Device type; Event label; glass sponge; Hexactinellida; Identification; LATITUDE; LONGITUDE; Martha L. Black; metagenomic binning; microbial metabolism; microbiome; MLB2017001; MLB2017001_006; MLB2017001_015; MLB2017001_017; MOOR; Mooring; OTNMoor_275; Porifera; Remote operated platform for oceanography; ROPOS; ROPOS 2030; Sample code/label; Sample comment; Sample type; South Atlantic Ocean; SponGES; Station label; symbiosis; Well-known text
    Type: Dataset
    Format: text/tab-separated-values, 168 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Metadata and NCBI-Accession numbers of 16S data for seawater, sediment, biofilm, and Vazella pourtalesii sponges from the Scotian Shelf (Canada) in summer 2016 and 2017 (2020)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Description: Anthropogenic pressures on marine ecosystems and organisms are steadily increasing. Whether and to which extent these pressures influence marine biodiversity is only starting to unveil. Establishment of adequate conservation areas represents a challenging but crucial task in the conservation of genetic diversity and biological variability. Using 16S rRNA gene amplicon sequencing, we analysed the microbial community structure of 32 individuals of the habitat-forming glass sponge Vazella pourtalesii, as well as reference seawater, sediment, and biofilm samples. We assessed how two anthropogenic impacts, i.e. habitat destruction by trawling and artificial substrate provision (moorings made of composite plastic), correspond with in situ V. pourtalesii microbiome variability. In addition, we evaluated the role of two bottom fishery closures in preserving sponge-associated microbial diversity on the Scotian Shelf, Canada.
    Keywords: Accession number, genetics; Anthropogenic impact; Area/locality; BC; Box corer; Campaign; CTD/Rosette; CTD-RO; DATE/TIME; Deep-sea Sponge Grounds Ecosystems of the North Atlantic; DEPTH, water; Device type; Event label; glass sponge grounds; HUD16/19_010; HUD16/19_012; HUD16/19_013; HUD16/19_383; HUD16/19_387; HUD16/19_391; HUD16/19_392; HUD16/19_395; HUD2016019; Hudson; Identification; LATITUDE; LONGITUDE; marine litter; Martha L. Black; microbiome; MLB2017001; MLB2017001_004; MLB2017001_005; MLB2017001_006; MLB2017001_015; MLB2017001_017; MLB2017001_020; MOOR; Mooring; Ocean Tracking Network (OTN); OTNMoor_275; Remote operated platform for oceanography; Remote operated vehicle; ROPOS; ROPOS 2028; ROPOS 2029; ROPOS 2030; ROPOS 2034; ROV; Sample code/label; Sample comment; Sample type; South Atlantic Ocean; Sponge Conservation Areas (SCAs); SponGES; Station label; trawling; Vazella pourtalesii; Well-known text
    Type: Dataset
    Format: text/tab-separated-values, 720 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Lifestyle evolution in cyanobacterial symbionts of sponges (2015)
    American Society for Microbiology
    Details
    Publication Date: 2022-05-25
    Description: © The Author(s), 2015. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in mBio 6 (2015): e00391-15, doi:10.1128/mBio.00391-15.
    Description: The “Candidatus Synechococcus spongiarum” group includes different clades of cyanobacteria with high 16S rRNA sequence identity (~99%) and is the most abundant and widespread cyanobacterial symbiont of marine sponges. The first draft genome of a “Ca. Synechococcus spongiarum” group member was recently published, providing evidence of genome reduction by loss of genes involved in several nonessential functions. However, “Ca. Synechococcus spongiarum” includes a variety of clades that may differ widely in genomic repertoire and consequently in physiology and symbiotic function. Here, we present three additional draft genomes of “Ca. Synechococcus spongiarum,” each from a different clade. By comparing all four symbiont genomes to those of free-living cyanobacteria, we revealed general adaptations to life inside sponges and specific adaptations of each phylotype. Symbiont genomes shared about half of their total number of coding genes. Common traits of “Ca. Synechococcus spongiarum” members were a high abundance of DNA modification and recombination genes and a reduction in genes involved in inorganic ion transport and metabolism, cell wall biogenesis, and signal transduction mechanisms. Moreover, these symbionts were characterized by a reduced number of antioxidant enzymes and low-weight peptides of photosystem II compared to their free-living relatives. Variability within the “Ca. Synechococcus spongiarum” group was mostly related to immune system features, potential for siderophore-mediated iron transport, and dependency on methionine from external sources. The common absence of genes involved in synthesis of residues, typical of the O antigen of free-living Synechococcus species, suggests a novel mechanism utilized by these symbionts to avoid sponge predation and phage attack.
    Description: Support for this study was provided by a USA-Israel Binational Science Foundation Young Investigator grant (BSF no. 4161011) to L.S. and a DOE Joint Genome Institute grant (CSP 1291) to U.H.; B.M.S. was supported by a grant of the German Excellence Initiative to the Graduate School of Life Sciences, University of Würzburg.
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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    PAPER (OA)
  • 5
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    Bacterial precursors and unsaturated long-chain fatty acids are biomarkers of North-Atlantic deep-sea demosponges (2021)
    In:  EPIC3PLOS ONE, 16(1), pp. e0241095, ISSN: 1932-6203
    Details
    Publication Date: 2021-10-03
    Description: Sponges produce distinct fatty acids (FAs) that (potentially) can be used as chemotaxonomic and ecological biomarkers to study endosymbiont-host interactions and the functional ecology of sponges. Here, we present FA profiles of five common habitat-building deep-sea sponges (class Demospongiae, order Tetractinellida), which are classified as high microbial abundance (HMA) species. Geodia hentscheli, G. parva, G. atlantica, G. barretti, and Stelletta rhaphidiophora were collected from boreal and Arctic sponge grounds in the North-Atlantic Ocean. Bacterial FAs dominated in all five species and particularly isomeric mixtures of mid-chain branched FAs (MBFAs, 8- and 9-Me-C16:0 and 10- and 11-Me-C18:0) were found in high abundance (together ≥ 20% of total FAs) aside more common bacterial markers. In addition, the sponges produced long-chain linear, mid- and a(i)-branched unsaturated FAs (LCFAs) with a chain length of 24‒28 C atoms and had predominantly the typical Δ5,9 unsaturation, although the Δ9,19 and (yet undescribed) Δ11,21 unsaturations were also identified. G. parva and S. rhaphidiophora each produced distinct LCFAs, while G. atlantica, G. barretti, and G. hentscheli produced similar LCFAs, but in different ratios. The different bacterial precursors varied in carbon isotopic composition (δ13C), with MBFAs being more enriched compared to other bacterial (linear and a(i)-branched) FAs. We propose biosynthetic pathways for different LCFAs from their bacterial precursors, that are consistent with small isotopic differences found in LCFAs. Indeed, FA profiles of deep-sea sponges can serve as chemotaxonomic markers and support the concept that sponges acquire building blocks from their endosymbiotic bacteria.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
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  • 6
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    Biodiversity, environmental drivers, and sustainability of the global deep-sea sponge microbiome (2022)
    In:  EPIC3Nature Communications, 13(1), ISSN: 2041-1723
    Details
    Publication Date: 2022-09-14
    Description: In the deep ocean symbioses between microbes and invertebrates are emerging as key drivers of ecosystem health and services. We present a large-scale analysis of microbial diversity in deep-sea sponges (Porifera) from scales of sponge individuals to ocean basins, covering 52 locations, 1077 host individuals translating into 169 sponge species (including understudied glass sponges), and 469 reference samples, collected anew during 21 ship-based expeditions. We demonstrate the impacts of the sponge microbial abundance status, geographic distance, sponge phylogeny, and the physical-biogeochemical environment as drivers of microbiome composition, in descending order of relevance. Our study further discloses that fundamental concepts of sponge microbiology apply robustly to sponges from the deep-sea across distances of 〉10,000 km. Deep-sea sponge microbiomes are less complex, yet more heterogeneous, than their shallow-water counterparts. Our analysis underscores the uniqueness of each deep-sea sponge ground based on which we provide critical knowledge for conservation of these vulnerable ecosystems.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed , info:eu-repo/semantics/article
    Format: application/pdf
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  • 7
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    Giant sponge grounds of Central Arctic seamounts are associated with extinct seep life (2022)
    In:  EPIC3Nature Communications, 13(638)
    Details
    Publication Date: 2023-06-21
    Description: The Central Arctic Ocean is one of the most oligotrophic oceans on Earth because of its sea- ice cover and short productive season. Nonetheless, across the peaks of extinct volcanic seamounts of the Langseth Ridge (87°N, 61°E), we observe a surprisingly dense benthic biomass. Bacteriosponges are the most abundant fauna within this community, with a mass of 460 g C m−2 and an estimated carbon demand of around 110 g C m−2 yr−1, despite export fluxes from regional primary productivity only sufficient to provide 〈1% of this required carbon. Observed sponge distribution, bulk and compound-specific isotope data of fatty acids suggest that the sponge microbiome taps into refractory dissolved and particulate organic matter, including remnants of an extinct seep community. The metabolic profile of bacter- iosponge fatty acids and expressed genes indicate that autotrophic symbionts contribute significantly to carbon assimilation. We suggest that this hotspot ecosystem is unique to the Central Arctic and associated with extinct seep biota, once fueled by degassing of the volcanic mounts.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
    Format: application/pdf
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  • 8
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    In situ observation of sponge trails suggests common sponge locomotion in the deep central Arctic (2021)
    In:  EPIC3Current Biology, 31(8), pp. R368-R370, ISSN: 09609822
    Details
    Publication Date: 2023-03-13
    Description: Located 10° further north than any sponge ground yet reported, the population, primarily comprising Geodia parva, G. hentscheli and Stelletta rhaphidiophora individuals, covers the great majority of the Langseth Ridge from ∼1,000 m upward, to a shallowest peak of 580 m depth, at very high abundance1. Sizes of individual sponges varied, with a median diameter of 17 cm (± 0.10 cm SE, n = 10,839, and IQR 11–25 cm); the maximum diameter observed was 110 cm and the smallest were just over 1 cm. This size range equates to a median wet weight of 1.4 kg (± 0.12 kg SE, n = 10,839; IQR 0.4–5 kg; Figure S1). Sponges are opportunistic feeders; although they efficiently retain particulates by filter feeding, dissolved organic matter in seawater often represents the main food source2. The low productivity and nutrient fluxes that characterize this region — due to high latitude, permanent sea ice cover, and distance from land — raise the question of how this abundant biomass is maintained. We analyzed the many trails of interwoven spicules across the seamount peaks. Trails were observed to be several centimeters in height and up to meters in length, often connected directly to living sponges. These trails were particularly visible in areas of low sponge density, that is, where trails crossed bedrock in areas sparsely covered by sediments or organic debris (Figure 1A–E and Video S1). Spicule trails in areas of denser sponge aggregation exhibited a higher vertical thickness than observed elsewhere (Figures 1F and S1A, and Video S1). Our observations also suggest that the spicule trails correlated with the distribution of smaller juvenile sponges (Figure S1A).
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev , info:eu-repo/semantics/article
    Format: application/pdf
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  • 9
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    Publisher Correction: Biodiversity, environmental drivers, and sustainability of the global deep-sea sponge microbiome (2022)
    Springer Nature
    In:  EPIC3Nature Communications, Springer Nature, 13(1), pp. 6546-6546, ISSN: 2041-1723
    Details
    Publication Date: 2023-07-25
    Description: The original version of the Description of Additional Supplementary Files associated with this Article contained errors in the legends of Supplementary Data 5–8 and omitted legends for the Source Data. The HTML has been updated to include a corrected version of the Description of Additional Supplementary Files; the original incorrect version of this file can be found as Supplementary Information associated with this Correction.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
    Format: application/pdf
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  • 10
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    Phylogeny and genomics of SAUL, an enigmatic bacterial lineage frequently associated with marine sponges (2018)
    Wiley / Society for Applied Microbiology and Blackwell Publishing Ltd,
    In:  Environmental Microbiology, 20 . pp. 561-576.
    Details
    Publication Date: 2021-02-08
    Description: Many marine sponges contain dense and diverse communities of associated microorganisms. Members of the “sponge-associated unclassified lineage” (SAUL) are frequently recorded from sponges, yet little is known about these bacteria. Here we investigated the distribution and phylogenetic status of SAUL. A meta-analysis of the available literature revealed the widespread distribution of this clade and its association with taxonomically varied sponge hosts. Phylogenetic analyses, conducted using both 16S rRNA gene-based phylogeny and concatenated marker protein sequences, revealed that SAUL is a sister clade of the candidate phylum “Latescibacteria”. Furthermore, we conducted a comprehensive analysis of two draft genomes assembled from sponge metagenomes, revealing novel insights into the physiology of this symbiont. Metabolic reconstruction suggested that SAUL members are aerobic bacteria with facultative anaerobic metabolism, with the capacity to degrade multiple sponge- and algae-derived carbohydrates. We described for the first time in a sponge symbiont the putative genomic capacity to transport phosphate into the cell and to produce and store polyphosphate granules, presumably constituting a phosphate reservoir for the sponge host in deprivation periods. Our findings suggest that the lifestyle of SAUL is symbiotic with the host sponge, and identify symbiont factors which may facilitate the establishment and maintenance of this relationship.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    DOI: 10.1111/1462-2920.13965
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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