Issue:ISSN 2095-1353
CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position ：
Home->Past Journals Catalog->
2012年49 No.5
Effects of paraquat on lifespan and level of expression of antioxidantenzyme genes in worker bees of Apis mellifera ligustica
Author of the article:
Author's Workplace：
Key Words：Apis mellifera ligustica，worker，lifespan，antioxidant enzyme
Abstract： We investigated the effects of paraquat on lifespan and the level of expression of mRNA for the antioxidant enzyme genes Sod 1 and Sod 2 in newly emerged worker bees of Apis mellifera ligustica Spinola． Paraquat was given atdoses of 200 mg /L，400 mg /L and 600 mg /L． Bees in the control group were fed sucrose． The results showed thatlifespans of honey bees decreased with the increase of paraquat concentration(P ＜ 0. 01) ． The relative level of expressionof the antioxidant enzyme gene Sod 1 increased linearly with the increase of paraquat concentration and it was significantlylower in the control group than in the paraquat-treated groups (P ＜ 0. 05) ． In contrast，the relative level of expression ofthe antioxidant enzyme gene Sod 2 increased initially but then decreased with the increase of paraquat concentration． The level of expression of this gene was significantly lower in the high-dosage paraquat-treated group (600 mg /L) than that inboth the control group and the low-and middle-dosage paraquat-treated groups (P ＜ 0. 05) ．