The effect of tobacco mosaic virus and potato virus X on peroxidase activity and peroxidase isozymes in Nicotiana glutinosa

Peroxidase activity and peroxidase isozymes were determined at intervals over a period of 14 days and 28 days respectively in Nicotiana glutinosa leaf tissue infected by tobacco mosaic virus (TMV) or potato virus X (PVX). Peroxidase activity was higher in extracts from leaves showing necrosis, than...

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Published inPhytochemistry (Oxford) Vol. 9; no. 11; pp. 2323 - 2326
Main Authors Chant, S.R., Bates, D.C.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.01.1970
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Summary:Peroxidase activity and peroxidase isozymes were determined at intervals over a period of 14 days and 28 days respectively in Nicotiana glutinosa leaf tissue infected by tobacco mosaic virus (TMV) or potato virus X (PVX). Peroxidase activity was higher in extracts from leaves showing necrosis, than in healthy leaves or from leaves showing chlorosis. Increase in peroxidase activity was accompanied by alterations in isozyme pattern. Five isozymes were found in extracts from healthy leaves and an additional one in virus-infected leaves. This isozyme and one of the others which was apparently associated with senescence, appeared earlier in extracts from necrotic than from extracts from chlorotic leaves.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(00)85733-7