Results 101 to 110 of about 316,695 (204)

Contractile vacuoles: a rapidly expanding (and occasionally diminishing?) understanding

open access: yesEuropean Journal of Protistology
Osmoregulation is the homeostatic mechanism essential for the survival of organisms in hypoosmotic and hyperosmotic conditions. In freshwater or soil dwelling protists this is frequently achieved through the action of an osmoregulatory organelle, the contractile vacuole.
Kiran J. More   +4 more
openaire   +2 more sources

A new member of the Eugleninele, Protoeuglena noctilucae Gen. et sp. Nov., occurring in Noctiluca miliaris Suriray, causing green discoloration of the sea off Calicut [PDF]

open access: yes, 1954
The presence of small green flagellates inside Noctiluca appears to have been first recorded by Weber and Weber-van Bosse (1890) who, however, did not observe the living ...
Subrahmanyan, R
core  

Studies on the contractile vacuole of Poterioochromonas malhamensis Peterfi. II. Antimonate stains the contractile vacuole of Poterioochromonas.

open access: yesEuropean journal of cell biology, 2001
Fixation of the chrysophycean flagellate Poterioochromonas malhamensis in the presence of potassium (pyro) antimonate have been carried out. Intense antimonate deposits are characteristic of the various elements of the contractile vacuole as well as a portion of the plasma membrane adjacent to the contractile vacuole.
H, Quader   +3 more
openaire   +1 more source

Distribution of Naegleria fowleri in Selected Northeast Arkansas Lakes [PDF]

open access: yes, 1980
Seven northeast Arkansas recreational lakes were examined for the presence of pathogenic and nonpathogenic Naegleria fowleri. Cultural differentiation and microscopic morphology were used as species determining tests, while mouse pathogenicity tests were
Evans, Robert Dean, Hinck, Lawrence W.
core   +2 more sources

Structure and dynamics of the contractile vacuole complex in Tetrahymena thermophila.

open access: yesJ Cell Sci, 2023
Cheng CY   +4 more
europepmc   +1 more source

Ultrastructure of the reproductive system of the black swamp snake (\u3ci\u3eSeminatrix pygaea\u3c/i\u3e). Part III. The sexual segment of the male kidney. [PDF]

open access: yes, 2002
In mature male snakes and lizards, a distal portion of the nephron is hypertrophied in relation to its appearance in females and immature males. This sexual segment of the male kidney apparently provides seminal fluid that is mixed with sperm and ...
Sever, David M.
core   +1 more source

THE CONTRACTILE VACUOLE INPARAMECIUM TRICHIUM

open access: yesThe Biological Bulletin, 1928
1. There is an anterior and a posterior contractile vacuolar apparatus in Paramecium trichium.2. Each is permanent and consists of feeding vesicles, contractile vacuole, excretory tube and pore.3. The contractile vacuoles of Paramecium trichium are vesicle-fed, differing here from those of other well known species in the same genus which are canal-fed ...
openaire   +2 more sources

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