Physiological and Genetic Responses to Pesticide Mixture Treatment of Veronica beccabunga

摘要: The effects of a five-pesticide mixture on pesticide accumulation, phytohormone levels (indole-3-acetic acid, gibberellic jasmonic and salicylic acid), pigment contents (total chlorophyll carotenoid), antioxidant enzyme (catalase guaiacol peroxidase) activities, lipid peroxidation product (malondialdehyde), DNA profiles were investigated in the leaves Veronica beccabunga. Laboratory-acclimatized plants treated with mix five pesticides (atrazine, disulfoton, chlorpyrifos, metalaxyl, ethion) doses 50 ppt, 1 ppb, 100 ppb, 1 ppm for 1, 3, 6 days. accumulation each pesticide, from highest to lowest, was as follows: atrazine, ethion. amounts total protein decreased increased concentration. Antioxidant activities malondialdehyde amount linearly increasing exposure. However, concentration caused decreases peroxidase (POD) activity (MDA) content at all treatment times. Both acid exposure gradually after. It also determined that application affected V. most band changes detected sixth day treatment.