Zoospores


Also found in: Dictionary, Thesaurus, Medical.

Zoospores

 

zoogonidia, or swarm spores, special cells in many algae and some lower fungi that are capable of moving in water like protozoans by means of flagella, whose number varies in different species (usually two, more rarely one, four, or more).

Zoospores function in asexual reproduction and settlement. In contrast to typical plant cells, zoospores do not have a rigid membrane. The zoospores of many algae have, in addition to a chromatophore, red ocelli and pulsating vacuoles. The movement of zoospores is forward and rotary; after some time a zoospore stops, loses its flagella, secretes a rigid membrane, and develops into a new alga or fungus organism. The cells in which zoospores are formed are called zoosporangia.

References in periodicals archive ?
For the zoospore series, approximately 15 ml of zoospores were introduced to each cage.
We evaluated the development of sporangia and zoospores in sporulation medium (see above).
Along with making students excited about microbiology and teaching important techniques that are standard in many laboratories, the aim of this lab exercise was to make students and their teachers aware of the connection between amphibians, an amphibian pathogen, and microcrustaceans as predators of single-celled prokaryotes and eukaryotes (including motile zoospores of the chytrid pathogen).
Zoosporic true fungi and heterotrophic straminipiles are especially adapted to aquatic habitats by the production of zoospores (Sparrow, 1960).
17) In brief, zoospores were released from fertile plants and the concentration of spores adjusted to 5 x [10.
The specific number of pathogenic zoospores in water may be regarded as risk factor.
v otros tres autores, Release of highlv elicitor-active glucans bv germinating zoospores of Phytophthora megasperma f.
Encysted zoospores of rumen fungi produce a rhizoidal system capable of penetrating plant tissues, thereby allowing access by fungi to fermentable carbohydrates that are not accessible to other rumen micro-organisms (Bachuap, 1981).
Gentle aeration distributed the zoospores throughout the tank so they settled evenly across the V tank walls.
It should also be noted that this new Pseudomonas isolate has the potential to be employed in the agricultural sector for its ability to produce substances that promote plant growth and biocontrol activity against fungal zoospores, which are responsible for causing diseases in fique plants and have generated important economic losses in the fique sector in Colombia.