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Open AccessArticle

Cultivation of Sponge-Associated Bacteria from Agelas sventres and Xestospongia muta Collected from Different Depths

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Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
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Faculty of Medicine and Health Science, Warmadewa University, Jln Terompong 24, Denpasar 80239, Bali, Indonesia
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Marine Animal Ecology Group, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
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Wageningen Marine Research, Wageningen University & Research, Ankerpark 27, 1781 AG Den Helder, The Netherlands
*
Authors to whom correspondence should be addressed.
Mar. Drugs 2019, 17(10), 578; https://doi.org/10.3390/md17100578
Received: 22 July 2019 / Revised: 23 September 2019 / Accepted: 5 October 2019 / Published: 11 October 2019
(This article belongs to the Special Issue Marine Bacteria as Sources of Bioactive Compounds)
Sponge-associated bacteria have been mostly cultured from shallow water (≤30 m) sponges, whereas only few studies targeted specimens from below 30 m. This study assessed the cultivability of bacteria from two marine sponges Xestospongia muta and Agelas sventres collected from shallow (<30 m), upper mesophotic (30–60 m), and lower mesophotic (60–90 m) reefs. Sponge-associated bacteria were cultivated on six different media, and replicate plates were used to pick individual colonies or to recover the entire biomass. Prokaryotic community analysis was conducted using Illumina MiSeq sequencing of 16S rRNA gene amplicons. A total of 144 bacterial isolates were picked following a colony morphology coding scheme and subsequently identified by 16S rRNA gene sequence analysis. Sponge individuals at each depth-range harboured specific cultivable bacteria that were not retrieved from specimens collected at other depths. However, there were substantial differences in the number of colonies obtained for replicate sponges of the same species. In addition, source of inoculum and cultivation medium had more impact on the cultured prokaryotic community than sample collection depth. This suggests that the “plate count anomaly” is larger than differences in sponge-associated prokaryotic community composition related to depth. View Full-Text
Keywords: sponges; cultivation; bacteria; depth sponges; cultivation; bacteria; depth
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Indraningrat, A.A.G.; Micheller, S.; Runderkamp, M.; Sauerland, I.; Becking, L.E.; Smidt, H.; Sipkema, D. Cultivation of Sponge-Associated Bacteria from Agelas sventres and Xestospongia muta Collected from Different Depths. Mar. Drugs 2019, 17, 578.

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