Pesticide-induced oxidative stress in laboratory and field populations of native honey bees along intensive agricultural landscapes in two Eastern Indian states

• Published in: Apidologie Vol. 46; no. 1; pp. 107 - 129
• Main Authors: Chakrabarti, Priyadarshini, Rana, Santanu, Sarkar, Sagartirtha, Smith, Barbara, Basu, Parthiba
• Format: Journal Article
• Language: English
• Published: Paris Springer-Verlag 2015; Springer Paris; Springer Verlag
• Subjects: agricultural land; Apis dorsata; biomarkers; Biomedical and Life Sciences; catalase; Entomology; honey bees; invertebrates; laboratory experimentation; Life Sciences; Original Article; oxidative stress; pesticides; superoxide dismutase; xanthine oxidase; enzyme; insecticide; super-oxide dismutase; xanthine oxidase; catalase; Apis dorsata; Apis cerana
• ISSN: 0044-8435; 1297-9678
• DOI: 10.1007/s13592-014-0308-z

Pesticides have been cited as one of the major drivers of pollinator loss. However, little is known about pesticide impacts on natural populations of native honey bee species. This study looked into the effect of pesticides with respect to oxidative stress in the laboratory and in field populations of two native Indian honey bee species (Apis dorsata and A. cerana) by examining a combination of biomarkers, e.g., superoxide dismutase, catalase and xanthine oxidase. A significant upregulation of all three biomarkers was observed in both treated individuals in laboratory experiments and field populations sampled from a pesticide use gradient. This study reports, for the first time, an increase in expression of xanthine oxidase in an invertebrate system (honey bees) exposed to pesticides.