In case of perithecial development (Table II), traces of perithecia
were observed in response to maltose in the case of S1, S2, S3, Sw92.
appeared within one week after 10 days small fruiting bodies just like the tip of the common pin appeared on the plates (Fig.
olive green to brown, ostiolate, globose to subglobose 260-360 x 260-320 [micro]m in size anchor to the substrate by rhizoids.
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.
After fertilization of the stromata, perithecia
with asci and ascospores develop.
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