Epistatic relationships and linkage among colour markers of the imperfect entomopathogenic fungus Metarhizium anisopliae

Abstract

MAGOON, J., and K. MESSING-AL- AIDROOS. 1986. Epistatic relationships and linkage among colour markers of the imperfect entomopathogenic fungus Metarhizium anisopliae. Can. J. Genet. Cytol. 28: 96-100 Diploid strains of the imperfect entomopathogen Metarhizium anisopliae were obtained by forced matings of complementary auxotrophic and spore-colour marked mutants. Genetic analysis of diploid and haploid mitotic recombinants suggests the existence of two metabolic pathways for spore pigmentation biosynthesis in Metarhizium anisopliae. Ten markers (two new and eight previously identified) were assigned to five linkage groups.

Conidial Pigmentation Is Important to Tolerance Against Solar‐simulated Radiation in the Entornopathogenic Fungus Metarhizium anisopliae

“…Wild M. anisopliae isolates have dark green conidia, with the green tonality varying widely among isolates. Little is known about the biosynthesis, chemical nature and biological importance of the pigments present in M. anisopliae conidia, but the synthesis of green conidial color seems to depend on at least two different metabolic pathways (30). In addition to genetic determination, pigmentation is also strongly influenced by the environment ( e.g .…”

Mutants and isolates of Metarhizium anisopliae are diverse in their relationships between conidial pigmentation and stress tolerance

“…There are, however, considerable color variations among the currently available wild-types. In addition, many spontaneous and mutagen-induced color mutants of M. anisopliae have been described as exhibiting brown, tan, yellow, lemon, orange, purple, pale vinaceous or mustard conidia (Magoon and Al-Aidroos, 1986;Oliveira et al, 1994). In the current study, the conidial colors of 3 wild-types and 30 color mutants of M. anisopliae were precisely described through the use of the PANTONE ® color standard (Eiseman and Herbert, 1990).…”