Many species of echinoderms, in all five extant classes, contain subcuticular bacterial symbionts (SCB). The role of these extracellular symbionts and the nature of the relationship remain unclear. We have sequenced 168 rRNA genes from symbionts to determine their phylogenetic affinities. Symbionts of an ophiuroid, Ophiactis balli, appear closely related to bacteria within the alpha group of the class Proteobacteria, including intracellular endosymbionts and pathogens. SCB are clearly of separate origin from other documented major groups of marine symbiotic bacteria.
|Number of pages||4|
|Journal||APPL ENVIRON MICROB|
|Publication status||Published - 1997|
- SEA STAR
- SUB-CUTICULAR BACTERIA
- Biotechnology & Applied Microbiology
- ENDOSYMBIOTIC BACTERIA