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A motile flagellated asexually produced spore, as of certain algae, oomycetes, and fungi.

zo′o·spor′ic adj.


1. (Biology) an asexual spore of some algae and fungi that moves by means of flagella
2. (Biology) one of several spores produced in a saclike body (sporocyst) by some parasitic protozoans
ˌzooˈsporic, zoosporous adj


(ˈzoʊ əˌspɔr, -ˌspoʊr)

1. an asexual spore of certain algae or fungi that moves by cilia or flagella, often capable of encysting in adverse conditions.
2. an ameboid or flagellate reproductive form that emerges from the sporocyst in certain protozoans.
zo`o•spor′ic (-ˈspɔr ɪk, -ˈspɒr-) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.zoospore - an asexual spore of some algae and fungi that moves by means of flagella
spore - a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes"
References in periodicals archive ?
The evaluation of spore germination, under optical microscopy, only considered those that had the zoospores release and emptiness appearance.
Effect of temperature on germination of zoospores of Phytophthora drechsleri f.
The mean values of microbial count, protozoal and fungal zoospores were remarkably different among tieatments (p<0.
After about 12 hr, the motile secondary zoospores were collected and number of zoospores in the suspension was counted (6 x104 spores per ml) using haemocytometer (Pradhan et al.
Temperatures between 30 and 40[degrees]C are necessary for the production of zoospores, in addition to the accumulation of water in flooded regions.
Infection of shoots via infested tubers can be caused by mycelium growing from the tuber into the developing stem tissue or via sporangia and zoospores formed on the tuber surface under moist conditions (Johnson, 2010).
Micro-topographic cues for settlement of zoospores of the green fouling alga Enteromorpha.
Resting propagules are comparatively large and heavy, and as such they don't disperse as well as other spore types such as sporangia or zoospores (Judelson and Blanco 2005).
Indeed, in the field and laboratory, freshwater zooplankton was found to trigger Bd infection in two amphibian species by directly consuming Bd zoospores.
Reproduction occurs by asexual quadriflagellate zoospores or sexual biflagellate gametes (Bourrelly, 1966; Chapman, 1984; Silva, 1982; Sluiman, 1989; O'Kelly and Floyd, 1990; Thompson and Wujek, 1997).
Dermatophilus congolensis produces motile coccal zoospores and ability of individual strains to invade epidermis determining their virulence.