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  • 1
    ISSN: 1573-0832
    Keywords: cell wall extract ; trichothecene ; mycotoxin ; host-parasite interaction ; Cucumis melo
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Addition of fruit cell wall extracts from two muskmelon cultivars into liquid media affected mycotoxin production by a strain of Myrothecium roridum pathogenic to muskmelon. Cell wall extracts from a susceptible cultivar (‘Iroquois’) significantly increased toxin production while cell wall extracts from a resistant cultivar (‘Hales Best’) significantly inhibited toxin production. Media containing 0.1 or 1.0 mg ml−1 stimulated toxin production more than media containing 10 or 100 mg ml−1 of cell wall extracts. Previous studies in our laboratory suggest that roridin E may be involved in virulence or pathogenicity of M. roridum; the present study indicates that cell wall polysaccharides as well as other materials present in cell wall preparations from susceptible host tissue provide a better substrate for toxin production than cell wall preparation from resistant host tissue.
    Type of Medium: Electronic Resource
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