ClO4-与As5+复合污染对斜纹夜蛾食物利用的影响

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Abstract

Spodoptera litura larvae were exposed to different concentrations of CA (compound contamination of ClO₄^- and As⁵⁺) in the artificial diets, and the effects of CA on the food utilization of S. litura were investigated. The results showed that the highest RGR of A1B3 was 3.75% and showed significantly difference among treatments on the 1^st day. The lowest of A3B5 was 1.01% and the control of A0B0 was 2.23%. On the 3^rd day, the lowest ECI and ECD of A3B4 were 28.61% and 36.29%, respectively. However, the treatments of A3B1 to A3B5 still had higher AD on the 5^st day. The growth of insect larvae could be stimulated by CA under low concentrations of As⁵⁺, but inhibited by CA under high concentrations of As⁵⁺. Furthermore, the food utilization and transformation ability of larvae were improved in order to intake more nutrition for larvae growth in low CA. In contrast, the high CA inhibited larvae growth and disturbed feeding behavior. These results will provide guide significance on the toxicological effects and mechanisms of CA on S. litura.

Key words： compound contamination of ClO4- and As5+ (CA) Spodoptera litura

Received: 25 June 2013

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	Articles by authors
	Qin Jun-hao
	Gu Chen
	Shu Ying-hua
	Wang Deng-ke
	Li Jun-fei
	Wen Ying
	Li Hua-shou

Cite this article:

Qin Jun-hao,Gu Chen,Shu Ying-hua, et al. Effect of compound contamination of arsenate and perchlorate on food utilization of Spodoptera litura[J]. , 2013, 32(3): 338-344.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2013/V32/I3/338

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