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Wirkung von Pentachlornitrobenzol (PCNB) auf die Ultrastruktur von Mucor mucedo und Phytophthora cactorum
Author(s) -
Casperson G.,
Lyr H.
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.19820220402
Subject(s) - phytophthora cactorum , incubation , biology , ultrastructure , mucor , vacuole , lysis , microbiology and biotechnology , botany , phytophthora , cytoplasm , biochemistry , aspergillus
The effect of PCNB in various concentrations on the ultrastructure of Mucor mucedo and Phytophthora cactorum was analyzed after an incubation period of 2 hours. The most striking effect in both fungi was a diffuse lysis of the internal structure of the mitochondria which differs markedly from the lysis induced by etridiazol (terrazol). Moreover an enlargement of the perinuclear space and an increased formation of vacuoles was observed. In Mucor mucedo , but not in Phytophthora cactorum a pathological thickening of the cell wall was observed. Although after 2 hours incubation with PCNB Phytophthora gave similar ultrastructural reactions in the mitochondria as Mucor , in growth experiments on agar dishes this species was 5–10 times less sensitive to PCNB compared to Mucor .