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The Ultrastructure of the Fungus Trichoderma viride and Investigation of its Growth on Cellulose
Author(s) -
BERG BJÖRN,
HOFSTEN ANGELICA v.
Publication year - 1976
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1976.tb00651.x
Subject(s) - trichoderma viride , hypha , ultrastructure , autolysis (biology) , conidium , cellulose , fungus , cellobiose , botany , germination , cell wall , chemistry , biology , cellulase , biochemistry , enzyme
Changes in the ultrastructure of Trichoderma viride during growth in shake cultures on cellobiose and cellulose fibres were examined. Electron micrographs of thin sections of germinating conidia, septate hyphae with ascomycete pores and other cell organelles are presented. Extensive autolysis of hyphae was observed after growth for 20 h on cellobiose. The fungus grew in the lumina and within the walls of cellulose fibres. The hyphae followed the directions of the laminar structure but did not grow across them. The observations indicated that the hyphae penetrated the fibres by causing cracks and by dissolving enzymatically the cellulose.