| the microbial community of ophrydium versatile colonies: endosymbionts, residents, and tenants. | ophrydium versatile is a sessile peritrichous ciliate (kingdom protoctista, class oligohymenophora, order peritrichida, suborder sessilina) that forms green, gelatinous colonies. chlorophyll a and b impart a green color to ophrydium masses due to 400-500 chlorella-like endosymbionts in each peritrich. ophrydium colonies, collected from two bog wetlands (hawley and leverett, massachusetts) were analyzed for their gel inhabitants. other protists include ciliates, mastigotes, euglenids, chlorophyte ... | 1995 | 11539474 |