|
Fairly common in marine
environments. Labyrinthula has not been included in past
literature concerned with marine amoebae but has been included here as
it has many amoeboid features, and frequently appears in cultures when
one is attempting to isolate marine amoebae (Rogerson & Gwaltney, 2000).
Labyrinthula is classified as being a Heterokont on the basis
of the morphology of the zoospores (Sleigh,
1989), an ongoing study into
the phylogenetic position of Labyrinthula has been undertaken
by Professor
David Porter's Lab, more recently relate members,
Thraustochytrium, Labyrinthuloides and Labyrinthula sp
itself have been studied and determined to form
a monophylectic group within the
Heterokonta (Honda et al, 2000).
Labyrinthula
zosterae is the causitive agent in the
Zostera marina wasting disease (Muehlstein
et al, 1991).
|
| References:-
Dietz, C. & Schnetter, R. (1999).
"Interaction of two myosins with microfilaments causes locomotion
in Labyrinthula sp." Protoplasma 206:
97-104.
Honda, D., Yokochi, T., Nakahara, T.,
Raghukumar, S., Nakagiri, A., Schaumann, K. & Higashihara, T.
(1999). "Molecular phylogeny of Labyrinthulids and Thraustochytrids
based on the seuencing of 18S ribosomal RNA gene." J.Euk.Microbiol.
46(6), 637-647.
Muelstein, .L.K., Porter, D., and Short, F.T.
(1991). "Labyrinthula zosterae sp. nov., the causative
agent of wasting disease of eelgrass, Zostera marina. Mycology
83: 180-191.
Perkins, F.O. & Amon, J.P. (1969). "Zoosporulation
in Labyrinthula sp. ; an electron microscopy study." J.Protozool.
16: 235-257.
Pokorny, K.S. (1967). "Labyrinthula".
J.Protozool. 14(4): 697-708.
Porter, D. (1969). "Ultrastructure of Labyrinthula."
Protoplasma 67: 1-19.
Porter, D. (1972). "Cell division in the
marine slime mold, Labyrinthula sp.,and the role of the
bothrosome in extracellular production." Protoplasma 74:
427-448.
Preston, T.M., Baines, I.C. & Kings, C.A.
(1992). "The gliding motility of the cellular slime mold Labyrinthula:
a possible cytoskeletal motor". Eur.J.Protozool. 36:
365-372.
Rogerson, A. & Gwaltney, C. (2000).
"High numbers of naked amoebae in planktonic waters of a mangrove
stand in Southern Florida, USA." J.Euk.Microbiol. 47(3):
235-241.
Sleigh, M. (1989). "Protozoa and other
protists." Edward Arnold Publ. London. p138.
|
