Gymnodinium linucheae

Super Group: 
Alveolata
Phylum: 
Dinophyta
Class: 
Dinophyceae
Order: 
Gymnodiniales
Family: 
Gymnodiniaceae
Genus: 
Gymnodinium
Species: 
linucheae
Authority: 
R.V.Trench & L.-V.Thinh 1995

Diagnosis

 Coccoid cells 10-12 micrometers in diameter enclosed in a cellulosic cell wall, with 2 chloroplasts and 2 stalked pyrenoids; pyrenoids without invasive chloroplast thylakoids; chloroplast envelope of 3 membranes; lamellae arranged in groups of 3 closely appressed thylakoids. Nucleus typically dinokaryon, with nucleolus, and double nuclear membrane with pores. Cells divide in coccoid stage only in hospite and in culture. In culture, cells motile in light phase, and coccoid in dark phase. Mastigote stage in culture typically gymnodinioid, with epicone larger than hypocone; cingulum displaced 0"17 times the length of the cell. Microtubular basket present. Neither trichocysts nor 'eyespots' observed.

Type illustration / Type locality / Type specimen

Type locality: Exuma Keys, Bahamas.
Type specimen. The type  is part of the Trench Symbiotic Dinoflagellate Culture Collection, Department of Biological Sciences, University of California at Santa Barbara, Santa Barbara CA 93106, USA.

Observation site(s)

HOSTS

Displaying 1 - 1 of 1
Association with... Region origin Name of site In reference...
Linuche unguiculata Bahamas Exuma Keys
Trench RK, van Thinh L- (1995) Gymnodinium linucheae sp. nov.: The dinoflagellate symbiont of the jellyfish Linuche unguiculata. European Journal of Phycology 30:149 - 154. doi: 10.1080/09670269500650911