TITLE

An investigation into induced plant defences

AUTHOR(S)
Wright, P.J.; Bonser, R.
PUB. DATE
September 1999
SOURCE
Journal of Biological Education (Society of Biology);Autumn99, Vol. 33 Issue 4, p217
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This laboratory exercise involves techniques that can be used to investigate induced plant defences. Runner beans are damaged, and the leaves that subsequently grow are tested for the presence of additional defence mechanisms. A control (undamaged) group is kept for comparison. Induced physical defences are indicated by an increase in the density of hairs (trichomes) on the leaves, and induced chemical defences by a decrease in the palatability of the leaves. The latter is tested by a bioassay using garden snails. These basic methods can be used to investigate a variety of defensive responses in plants.
ACCESSION #
2307533

 

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