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Hyperparasitism of Streptomyces albus on a Destructive Mycoparasite Nectria inventa
Author(s) -
Tu J. C.
Publication year - 1986
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1986.tb04362.x
Subject(s) - hypha , biology , appressorium , microbiology and biotechnology , streptomyces albus , botany , host (biology) , parasitism , streptomyces , ecology , bacteria , genetics
Using scanning electron microscopy, Streptomyces albus was proved to be a hyperparasite of Nectria inventa , itself a well‐known mycoparasite on many fungi. The hyperparasite had no apparent antagonistic activity against N. inventa , but did have intense tropic response toward it. Upon contact with the host, the hyperparasite grew along, and formed appressorium‐like structures on the host hyphae. The parasitism that led to the eventual collapse of the host cells was not necessarily accompanied by actual hyphal penetration. The hyperparasite could, however, readily penetrate the host hyphae, and its hyphae were frequently found inside the host hyphae.