Abstract
Abstract Extracts from healthy leaf tissues of Phaseolus vulgaris and Nicotiana glutinosa contained electrophoretically different peroxidase isozymes. Virus infection leading to local lesion development resulted in the formation of new peroxidase components. A comparison of the change in the peroxidase isozyme spectrum in various host-virus combinations indicated that the type of change is determined mainly by the host tissue, not by the virus. Lesion formation induced by the treatment of bean leaves with HgCl 2 was also accompanied by alterations in the peroxidase isozyme spectrum. These changes were only partly similar to those evoked by virus infection.
Published Version
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