SEASONAL CHANGES OF PEROXIDASE ISOZYME IN SEVERAL RUBUS SPECIES

Zymograms of peroxidase isozyme generally varied depending on species and even leaf age on a cane. Changes in the number of isozyme bands depending on the leaf age were classified into 5 patterns. Seasonal changes of the zymograms were also observed. The patterns of seasonal change in isozyme bands showed similarity to the patterns depending on the leaf age. These patterns seem to relate to cane character (erect or creaping) and leaf character (evergreen, semi-evergreen, or deciduous). The maximum number of isozyme bands in most species was observed to occure in November. This fact seems to relate to cold-resistance of leaves in winter.

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