Changes in Total Soluble Proteins and in Some Enzymes during Morphogenesis of Sclerotium rolfsii
1972; Microbiology Society; Volume: 72; Issue: 3 Linguagem: Inglês
10.1099/00221287-72-3-451
ISSN2059-9323
AutoresI. Chet, Nira Retig, Y. Henis,
Tópico(s)Phytochemicals and Antioxidant Activities
ResumoSUMMARY: Patterns of soluble proteins and enzymes were studied in the normal mycelium of the fungus Sclerotium rolfsii and at three stages of sclerotial formation. Significant changes in total soluble proteins were found during the morphogenetic process, as detected by gel isoelectric focusing. While no changes could be detected in acid phosphatase activity, peroxidase activity was higher in mature sclerotia than at other stages. Polyphenol oxidase activity was demonstrated with dihydroxy-phenylalanine, catechol and tyrosine as substrates. While only one active isozyme of the latter enzyme was found in the mycelium, six different isozymes were detected in the mature sclerotia. Esterase isozymes, on the other hand, decreased significantly during morphogenesis.
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