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An oospore is a thick-walled sexual spore that develops from a fertilized oosphere in some algae, fungi, and oomycetes.[1] They are believed to have evolved either through the fusion of two species or the chemically induced stimulation of mycelia, leading to oospore formation.[2]
In Oomycetes, oospores can also result from asexual reproduction, by apomixis. These haploid, non-motile spores are the site of meiosis and karyogamy in oomycetes.[3]
A dormant oospore, when observed under an electron microscope, has led researchers to draw conclusion that there is only a single central globule with other storage bodies surrounding it.[4]
References
edit- ^ Tronsmo, Anne, M. (2020). Plant Pathology and Plant Disease. CABI. ISBN 978-1789243178.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Uchida, J. Y.; Aragaki, M. (1980). "Chemical Stimulation of Oospore Formation in Phytophthora capsici". Mycologia. 72 (6): 1103. doi:10.2307/3759563. JSTOR 3759563.
- ^ Fry, William, E. "Introduction to Oomycetes". American Phytopathological Society. Retrieved 29 March 2021.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Ruben, D.M (May 1978). "Ultrastructure of Oospore Germination in Pythiumaphanidermatum". American Journal of Botany. 65 (5): 491–501. doi:10.2307/2442581. JSTOR 2442581. Retrieved 2021-04-04.