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Related to perithecia: perithecium, dikaryon, basidia, Imperfect fungi


, pl.


(per'i-thē'sē-ŭm, -sē-ă),
In fungi, a flask-shaped ascocarp, one of the many shapes of structures that bear asci and ascospores; useful as an aid in identifying a fungus.
[peri- + G. thēkē, flask]


(pĕr′ə-thē′shē-əm, -sē-əm)
n. pl. perithe·cia (-shē-ə, -sē-ə)
A small flask-shaped fruiting body in certain ascomycetous fungi that contains the ascospores.

per′i·the′ci·al (-shē-əl, -sē-əl) adj.


a type of fruiting body found in fungi of the ASCOMYCOTA, containing numerous asci (see ASCUS).
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References in periodicals archive ?
In case of perithecial development (Table II), traces of perithecia were observed in response to maltose in the case of S1, S2, S3, Sw92.
No perithecia appeared within one week after 10 days small fruiting bodies just like the tip of the common pin appeared on the plates (Fig.
Perithecia olive green to brown, ostiolate, globose to subglobose 260-360 x 260-320 [micro]m in size anchor to the substrate by rhizoids.
Perithecia embedded in calcareous rock, thallus scant, white; involucrellum scant; spores 18-28 [micro]m x 9-14 [micro]m Verrucaria calciseda 2.
In February and May 2002, on roots and crowns of plants dead by black foot rot at Miraflores and Tabay, respectively, clusters of reddish to reddish brown perithecia were commonly found (Figure 2).
A widespread species of calcareous substrates with a whitish thallus and partially immersed perithecia.
But if made to wet, fungal grow was inhibited and after seven days at room temperature (20-24[grados]C) yielded numerous perithecia.
Mycelium characteristics were recorded after 13 days by examination for coremia and perithecia formation, hyphal pigmentation, mycelial thickness and surface texture, production of aerial hyphae, and the character of the mycelium margin.
Fruiting bodies: Stromata brick-red at maturity, eventually turning brownish-black to black with age; hemispherical, 3-7 mm across, confluent forming extensive lobed crusts; surface papillate with protruding tips of perithecia but ostiolar necks do not extend beyond the crust of the stroma; ostioles breaking exposing pore into perithecium.
In spring warm moist weather conditions are favourable for the development and maturation of conidia and perithecia that produce ascospores concurrently with the flowering of cereal crops (Markell and Francl 2003).
Only 10 out of 45 pineapple guava isolates and 2 out of 20 citrus isolates were selected based on different BDA media characteristics like colony color, conidial shape and ability to produce perithecia.