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Characterization of sectored colonies of a high‐yielding Claviceps purpurea strain
Author(s) -
DidekBrumec Matjana,
GabercPorekar Vladimira,
Alačević Marija,
Druškovič Blanka,
Sočič Helena
Publication year - 1991
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620310105
Subject(s) - claviceps purpurea , strain (injury) , mycelium , hypha , biology , morphology (biology) , botany , pigment , chemistry , genetics , anatomy , organic chemistry
Abstract When sectored colonies of a high‐yielding Claviceps purpurea strain, producing ergotoxine alkaloids in submerged cultures, were investigated significant differences in surface morphology, mycelial differentiation, number of nuclei and in alkaloid production were established among sectors obtained after segregation. Biosynthetically most active sectors showed sclerotia‐like structure and a polynuclear state in cells, while low‐yielding sectors were composed mainly of undifferentiated hyphae with only few nuclei per cell. In cells of high productive sectors the content of DNA was about four times higher than in sectors of lower activity.