oospore


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o·o·spore

(ō'ō-spōr),
A thick-walled fungus spore that develops from a female gamete either through fertilization or parthenogenesis in an oogonium.

oospore

(ō′ə-spôr′)
n.
A thick-walled zygote developed from a fertilized oosphere, especially in an oomycete.

o′o·spor′ic (-spôr′ĭk, -spŏr′-) adj.

oospore

(ō′ō-spor) [″ + sporos, seed]
A spore formed by the union of opposite sexual elements.

oospore

the thick-walled spore found, for example, in some fungi, and arising from the fertilization of the OOSPHERE derived from an OOGONIUM.
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References in periodicals archive ?
An SEM study of the oospore of some Nitella species (Chlorophyta, Charales) with descriptions of wall ornamentation and an assessment of its taxonomic importance.
Sexual structures produced by Phytophthora species after mating are called oospores and are produced by a single individual in homothallic species, or when two individuals bearing different mating types come into contact in heterothallic species.
Determination of viability of Phytophthora capsici oospores with tetrazolium bromide staining test versus a plasmolysis method.
According to macrofossil data, the number of Chara oospores and Potamogeton seeds decreased significantly in comparison with the previous zone.
Inoculum was provided by soilborne oospores, the levels of which had been built up over the years by ploughing infected plants into the soil following each screen, and airborne sporangia from rows of infected 7042(S) and HB 3 genotypes planted every 9th row.
Some of the new strains resist fungicides and may mate with strains already here and produce the long-lived oospores.
Biometry of oospores and oogonia of Pythium (Oomycetes): the independent taxonomic value of calculated ratios.
The pathogen is mainly perpetuated through tuber and soil through production of oospores. The management of the disease can be done through host resistance, cultural adjustments, biological and use of fungicides.
It can be suggested that Hyaloperonospora parasitica persists as oospores in the soil over several years.