Gómez, R.; Erpenbeck, D.; Richelle-Maurer, E.; van Dijk, T.; Woldringh, C.L.; van Soest, R.W.M. (2004). Affinities of the Aphanocapsa-like cyanobacteria from the marine sponge Xestospongia muta based on genetic and morphological analysis. In: Pansini M, Pronzato R, Bavestrello G, Manconi R, Sarà M (eds) Sponge Science in the New Millenium. Papers contributed to the VI International Sponge Conference Rapallo (Italy) 29 September – 5 October 2002. Bollettino dei Musei e degli Istituti Biologici dell'Universitá di Genova. 68, 335-347.

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Gómez, R.; Erpenbeck, D.; Richelle-Maurer, E.; van Dijk, T.; Woldringh, C.L.; van Soest, R.W.M.

2004

68, 335-347

Publication

Proceedings of the 6th International Sponge Conference

Available for editors   [request]

The marine sponge Xestospongia muta (Porifera: Demospongiae: Haplosclerida) harbours cyanobacteria in its peripheral tissue that have been described as having an Aphanocapsa feldmanni-type appearance. Through subsequent cell fractionation steps we obtained a virtually pure cell suspension of the cyanobacteria. Through amplification of a region of the 16S rRNA gene we found that these cyanobacteria seem closely related to Prochlorococcus (Cyanobacteria, Prochlorophytes, Prochlorococcaceae), and Synechococcus (Cyanobacteria, Chroococcales, Synechococcus). We furthermore developed a new method, to obtain a clear signal with FISH by bleaching the auto-fluorescence of cyanobacteria, with osmium tetroxide. The location and morphological characteristics of the cyanobacteria are described by both light and electron microscopy.

Caribbean region

Associations, Symbiosis, Commensalism (parasitism see *PAR)

Porifera

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