Chlamydospore


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chlamydospore

[klə′mid·ə‚spȯr]
(mycology)
A thick-walled, unicellar resting spore developed from vegetative hyphae in almost all parasitic fungi.

Chlamydospore

 

the name for the spores of smut fungi (order Ustilaginales) and certain other fungi, formed from specialized or nonspecialized cells of the hyphae, which become enlarged and usually acquire a thickened, often pigmented membrane. Depending on their numbers, chlamydospores may be solitary or grow in chains. They contain considerable reserves of nutrients. A fungus in its resting state can survive unfavorable environmental conditions by forming chlamydospores.

References in periodicals archive ?
Colony color ISOLATE PDA CMA MALT Fus-01 Pink White White Fus-02 Light pink White Purple Fus-03 Light pink White White and purple Fus-04 Light pink White Violet TABLE 7--Length, width, number of septa and shape of macro and microconidia, and production of chlamydospores of Fusarium oxysporum isolates.
On the other hand a surprising result was obtained where 36 strains failed to produce germ-tube and out of these 2 were positive for chlamydospores coupled with results of carbohydrate assimilation and chromogenic agar these were identified as C.
Production of chlamydospores: Out of 24 isolated PNF, 23 were positive for the formation of resistance structures (Figs.
'Previous studies have shown that when sheep were given an adequate daily dose of chlamydospores, there was more than 80% reduction in the number of infective larvae derived from nematode eggs in faeces; Knox says.
albicans are typically identified by their ability to form germ tubes (Germ Tube Test) or single terminal chlamydospores (In Dalmau Plate Technique) under the appropriate conditions.
albicans in producing both germ tubes and chlamydospores, has since been recovered from the oral washings of approximately 25% of 94 HIV-positive Irish patients with or without AIDS and 3% of 150 HIV-negative Irish persons (3,4), which suggests that this species belongs to the indigenous microflora of the oral cavity, albeit in a minority of healthy persons.
Induction of traps by Ostertagia ostertagi larvae, chlamydospore production and growth rate in the nematode-trapping fungus Duddingtonia flagrans.
The Candida isolates were further speciated by germ tube test, chlamydospore formation on corn meal agar, urease test and inoculation onto chromogenic medium.
asperellum was described as a new species in 1999 for isolates that produce finely warted conidia, with temperature optima of 30[degrees]C and survive by producing chlamydospore. It is used as biological control agent against a wide spectrum of plant disease-causing organisms, including straminopiles such as Phytophthora megakarya fungi and nematodes.
Based on morphological characterization, the foot rot pathogen exhibited globose oogonia with paragynous antheridia, chlamydospore, torulose hyphae and lemon shaped sporangia with long pedicel.