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Applied and Environmental Microbiology, January 2007, p. 303-311, Vol. 73, No. 1
0099-2240/07/$08.00+0     doi:10.1128/AEM.00604-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

-Proteobacterial Symbionts of Marine Bryozoans in the Genus Watersipora

Scripps Institution of Oceanography, Marine Biology Research Division, University of California, San Diego, La Jolla, California 92093-0202,¹ Department of Environmental and Biomolecular Systems, OGI School of Science & Engineering, Oregon Health & Science University, Beaverton, Oregon 97006-8921²

Received 14 March 2006/ Accepted 21 October 2006

Bacterial symbionts that resembled mollicutes were discovered in the marine bryozoan Watersipora arcuata in the 1980s. In this study, we used PCR and sequencing of 16S rRNA genes, specific fluorescence in situ hybridization, and phylogenetic analysis to determine that the bacterial symbionts of "W. subtorquata" and "W. arcuata" from several locations along the California coast are actually closely related -Proteobacteria, not mollicutes. We propose the names "Candidatus Endowatersipora palomitas" and "Candidatus Endowatersipora rubus" for the symbionts of "W. subtorquata" and "W. arcuata," respectively.

Published ahead of print on 27 October 2006.