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

zo′o·spor′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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"
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References in periodicals archive ?
Our initial findings suggest filtering results in 5- to 10-fold higher yields of Bsal DNA than centrifugation, the 95% limit of detection for Bsal when filtering is between 10 and 100 zoospores, and DNA recovery appears to scale linearly with water volume filtered.
If it goes through asexual reproduction, the pathogen sporangia germinates and releases zoospores which can then move chemo-tactically (in C) within the environment or directly through sporangia by wind or water.
In Brazil, pythiosis is more common in equids, and lesions are more commonly reported in the distal extremities of the limbs, thorax, and ventral abdomen, because of frequent contact with water contaminated with zoospores (SANTURIO et al., 2008).
hamatum culture supernatant has been shown to inhibit the germination and growth of encysted Pythium zoospores (Thrane et al., 1997).
Phytophthora infections can be identified by detecting swimming zoospores released from infected roots into bench leachate.
Strain S91 and Zoospores of the Green Alga Ulva australis independent of bacteriocidal activity.
Although the occurrence of zoospores has been reported in culture (Whyte et al.
The symbiotic green algae can escape from the host polyps and can form swimming zoospores (which have two flagella) in culture solution.
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.sp.
The mean values of microbial count, protozoal and fungal zoospores were remarkably different among tieatments (p<0.05).