Lösecke W, Neumann D, Schmauder HP, Gröger D. Changes in cytoplasmic ultrastructure during submerged cultivation of a peptide alkaloids-producing strain of Claviceps purpurea (Fr.) Tul.
ZEITSCHRIFT FUR ALLGEMEINE MIKROBIOLOGIE 1982;
22:49-61. [PMID:
6896107 DOI:
10.1002/jobm.3630220106]
[Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
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 membranes, which apparently may form numerous vesicles. The correlations between lipid and alkaloid synthesis are discussed.
Collapse