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FEMS Microbiol Ecol. 2011 Nov;78(2):366-75. doi: 10.1111/j.1574-6941.2011.01168.x. Epub 2011 Aug 22.

Planctomycetes diversity associated with macroalgae.

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1
Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal. olga.lage@fc.up.pt

Abstract

Planctomycetes associated with 12 macroalgae from the north coast of Portugal were isolated, using an improved method. A total of 138 isolates were found to comprise 10 operational taxonomic units (OTUs), with 65% of the strains being closely related to the species Rhodopirellula baltica. The other strains are probably new species or genera related to Rhodopirellula, Blastopirellula and Planctomyces. Some of the OTUs isolated are unique and have never been found before in previous studies. Catalyzed reporter deposition-FISH confirmed the presence of Planctomycetes on macroalgal surfaces. This study provides the first report of the cultured diversity of Planctomycetes on the epiphytic macroalgae community and presents clear evidence of their nutritional and intimate relationship.

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