Vol 10 No 3 (2004)
Cikkek

Effect of Erwinia amylovora infection on peroxidase enzyme activity in resistant apple cultivars

Published August 13, 2004
K. Kása
BUESPA, Faculty of Horticultural Science, Department of Fruit Science 1118 Budapest, Villányi út 29-43., Hungary
M. Hevesi
BUESPA, Faculty of Horticultural Science, Department of Fruit Science 1118 Budapest, Villányi út 29-43., Hungary
M. G. Tóth
BUESPA, Faculty of Horticultural Science, Department of Fruit Science 1118 Budapest, Villányi út 29-43., Hungary
É. Stefanovits-Bányai
BUESPA, Faculty of Food Science, Department of Applied Chemistry 1118 Budapest, Villányi út 29-43., Hungary
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How to Cite

APA

Kása, K., Hevesi, M., G. Tóth, M., & Stefanovits-Bányai, É. (2004). Effect of Erwinia amylovora infection on peroxidase enzyme activity in resistant apple cultivars. International Journal of Horticultural Science, 10(3), 37-39. https://doi.org/10.31421/IJHS/10/3/503

Abstract

Two apple cultivars that display enhanced resistance to fire blight (causal agent: Erwinia amylovora) were selected. The aim of the present study was to characterize the peroxidase (POD) enzyme activity of `Szemes alma' (a historical cultivar) and MR-03, (a Hungarian multiresistant hybrid of 'Prima') and compare them to susceptible 'Jonathan M 40' and resistant 'Remo' controls. Peroxides enzyme activity during E. amylovora infections was investigated in artificially infected apple shoots. Increases in enzyme activities were observed in a `Jonathan M40' and in 'Remo', MR-03, `Szemes alma' cultivars. There was a consistent relationship between total enzyme activity and fire blight disease severity. High activity of the peroxidase was positively correlated with the degree of resistance to fire blight. A general hypothesis that POD activity is related to fire blight susceptibility/resistance is supported by our results.

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