Bibliographic Detail
Cann, J. & Pennick, N. , 1986
Reference:
Cann, J. & Pennick, N. (1986). Observations on Petalomonas cantuscygni, n. sp., a new halo-tolerant Strain. Archiv für Protistenkunde 132: 63-71.
Abstract:
Observations made on a new marine species of Petalomonas, P. cantuscygni, revealed six dorsal ribs or keels and a constant ventral channel formed by two keels. This strain was able to survive drying of the surrounding medium until only crystals, and no liquid component remained, the cells becoming motile again upon the addition of sterile marine media.
Furthermore, the cells survived in freshwater media, although the keels became less pronounced. Ultrastructural observations demonstrated a separate reservoir for the flagellum and a separate canal for ingested material. A secondary, non-emergent flagellum was not observed. Between the keels, and on their surface, is a knobbly or granular array with a regular periodicity of 80 nm.
