Pak. J. Bot., 36(3): 603-609, 2004. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
PEROXIDASE ACTIVITY IN RELATION TO ANTHOCYANIN AND CHLOROPHYLL CONTENT IN JUVENILE AND ADULT LEAVES OF "MINI-STAR" GAZANIA SPLENDENS GÜL CEVAHIR*, SEMAHAT YENTÜR, MEVZULE YAZGAN, MUAMMER ÜNAL AND NADIM YILMAZER1
Abstract: Gazania
splendens is an ornamental and decorative plant which is cultivated in parks
and gardens and shows distinct juvenile and adult leaves in transition from the
vegetative phase to the reproductive phase. There is no information in current
literature that Gazania shows heterophylly. The objective of the present
study was to assess the physiological parameters such as the changes of peroxidase
activity (POD), anthocyanin and chlorophyll content in juvenile and adult leaves.
It was found that POD activity and chlorophyll level increased in the juvenile
leaves compared to the adult ones in which anthocyanin content decreased. These
results indicate that there is an inverse correlation between the amount of anthocyanin
and chlorophyll in the juvenile and adult leaf tissues, and increasing POD activity
may limit anthocyanin content in the adult leaves. Department of Botany, Faculty
of Science, Istanbul University, 34460, Süleymaniye-Istanbul, Turkey. |
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