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Changes in growth regulator content of radish seedlings, Raphanus sativus, infested with the aphid Myzus persicae
Author(s) -
HUSSAIN A.,
FORREST J. M. S.,
DIXON A. F. G.
Publication year - 1973
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1973.tb07308.x
Subject(s) - myzus persicae , biology , raphanus , aphid , infestation , wilting , aphididae , auxin , girdling , brevicoryne brassicae , horticulture , homoptera , agronomy , botany , pest analysis , biochemistry , gene
SUMMARY Following 10 days of infestation by the aphid Myzus persicae there was an increase in the amount of growth inhibiting substances and a decrease in cytokinins, gibberellins and auxins in infested as compared with similar uninfested radish seedlings. Even after previously infested seedlings have been freed of aphids for 10 days, differences in the hormone balance remained. The possible relationships between the changes in hormonal balance and the effect of the aphid infestation on growth, translocation and wilting are discussed.