Chlamydospore

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https://en.wikipedia.org/wiki/Chlamydospore
Gram stain of Candida albicans from a vaginal swab, showing hyphae, and chlamydospores, which are 2–4 µm in diameter.

A chlamydospore is the thick-walled large resting spore of several kinds of fungi, including Ascomycota such as Candida, [1] Basidiomycota such as Panus, [2] and various Mortierellales species. [3] It is the life-stage which survives in unfavourable conditions, such as dry or hot seasons. Fusarium oxysporum which causes the plant disease Fusarium wilt is one which forms chlamydospores in response to stresses like nutrient depletion. Mycelia of the pathogen can survive in this manner and germinate in favorable conditions.

Chlamydospores of the yeast Candida albicans

Chlamydospores are usually dark-coloured, spherical, and have a smooth (non-ornamented) surface. They are multicellular, with cells connected by pores in the septae between cells.

Chlamydospores are a result of asexual reproduction (in which case they are conidia called chlamydoconidia) or sexual reproduction (rare). Teliospores are special kind of chlamydospores formed by rusts and smuts.

See also

References

  1. ^ Staib, P; Morschhäuser, J (2007). "Chlamydospore formation in Candida albicans and Candida dubliniensis--an enigmatic developmental programme". Mycoses. 50 (1): 1–12. doi: 10.1111/j.1439-0507.2006.01308.x. PMID  17302741.
  2. ^ Dennis, R. L. (1969). "Fossil mycelium with clamp connections from the middle pennsylvanian". Science. 163 (3868): 670–1. Bibcode: 1969Sci...163..670D. doi: 10.1126/science.163.3868.670. JSTOR  1726335. PMID  17742734.
  3. ^ Wagner, L.; Stielow, B.; Hoffmann, K.; Petkovits, T.; Papp, T.; V, C. (2013). "A comprehensive molecular phylogeny of the Mortierellales (Mortierellomycotina) based on nuclear ribosomal DNA". Persoonia. 30 (1): 77–93. doi: 10.3767/003158513x666268. PMC  3734968. PMID  24027348.

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