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Changes in cytoplasmic ultrastructure during submerged cultivation of a peptide alkaloids‐producing strain of Claviceps purpurea (FR.) TUL
Author(s) -
Lösecke W.,
Neumann D.,
Schmauder H.P.,
Gröger D.
Publication year - 1982
Publication title -
zeitschrift für allgemeine mikrobiologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0044-2208
DOI - 10.1002/jobm.19820220106
Subject(s) - claviceps purpurea , ultrastructure , strain (injury) , cytoplasm , biology , botany , microbiology and biotechnology , anatomy
A strain of Claviceps purpurea , designated Pepty 695/S produces ergotoxine alkaloids under particular conditions of fermentation. The onset of alkaloid synthesis occurs around the second day of cultivation. Alkaloid formation is connected with morphological and ultrastructural changes. In the first 3‐5 days of cultivation short thickened, septated hyphae, organized in plectenchymatic pellets as well as large single cells are formed. The hyphae are ultrastructurally characterized by increasing number of lipid droplets, deposits of glycogen and by extended ER membrances, which apparently may form numerous vesicles. The correlations between lipid and alkaloid synthesis are discussed.