期刊
ARCHIVES OF MICROBIOLOGY
卷 197, 期 7, 页码 965-971出版社
SPRINGER
DOI: 10.1007/s00203-015-1133-0
关键词
Endosymbiotic bacteria; Dimethylsulfoniopropionate (DMSP) catabolism; Symbiosis; Pyrodinium bahemense var. compressum
类别
资金
- Department of Science and Technology (DOST) through the Philippine Council for Aquatic and Marine Research and Development (PCAMRD, now part of PCAARRD)
Many aspects of the biology and ecology of the toxic dinoflagellate Pyrodinium bahamense var. compressum are still poorly understood. In this brief note, we present identification of its associated intracellular bacteria or endosymbionts via PCR cloning and 16s rRNA gene sequencing and their localization by confocal microscopy, a first for Pyrodinium. The most frequently observed species in the endosymbiotic microflora were from Roseobacter clade (Alphaproteobacteria, 68 %) and Gilvibacter sediminis (Flavobacteriaceae, 20 %). Roseobacter lineage, the most abundant taxa in this study, is known to be involved in dimethylsulfoniopropionate metabolism which is highly produced in dinoflagellates-a possible strong factor shaping the structure of the associated bacterial community.
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