Physiology of Anthocyanin Accumulation in Corn Leaves Treated with Metsulfuron-methyl
1998
Park E.Y. | Kim J.S. KRICT, P.O.Box 107, Yuseong, Daejon (Korea Republic)
The objective of this study was to investigate the cause of anthocyanin accumulation in the corn leaves treated with metsulfuron-methyl. The accumulation of anthocyanin and total sugar was increased with the time after metsulfuron-methyl application and with the greater herbicide concentration as well. The anthocyanin increase was alleviated by the combined treatment of DUMU or the tank-mixture treatment of metsulfuron-methyl, isoleucine and valine. Metsulfuron-methyl could not enhance the anthocyanin formation in the nonchlorophyllous tissue in which photosynthetic carbohydrate production was limited. Upon the exogenous supply of sucrose, however, the contents of anthocyanin was increased in the both chlorophyllous and nonchlorophyllous leaf segment of corn without the herbicide treatment. On the other hand, the herbicide itself did not influence Hill reaction in vitro and photosynthesis electron transport in vivo.
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