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Resistenzinduktion gegen systemische Virusinfektionen durch Kulturfiltrate von Stachybotrys chartarum (Ehrenb. ex Link) Hughes
Author(s) -
Maiss E.
Publication year - 1987
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.1439-0434.1987.tb00480.x
Subject(s) - biology , inoculation , microbiology and biotechnology , virus , fungus , virology , host (biology) , horticulture , botany , ecology
Induced resistance in systemic host‐virus combinations by culture filtrates of Stachybotrys chartarum (Ehrenb. ex Link) Hughes Culture filtrates of the fungus Stachybotrys chartarum sprayed on systemic hosts decreased the development of symptoms of different elongated and isometric viruses. The degree of induced resistance depended on the host‐virus system. An interval of three or five days between application of the filtrate and virus inoculation was sufficient to induce resistance. High inoculum concentration reduced the efficiency of induced resistance in cucumber against CMV. The content of CMV in inoculated andsystemically infected, induced resistant cucumber leaves was decreased. TMV inoculated leaves of induced resistant tobacco plants contained higher, systemically infected leaves lower virus amounts as comparable untreated control leaves. Reduced virus content and distribution in induced resistant plants obviously resulted from inhibition of multiplication and spread of viruses.