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| Effects of 4-tert-octylphenol on the growth and development of silkworms, Bombyx mori L. |
| Received:February 21, 2020 |
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| KeyWord:4-tert-octylphenol;Bombyx mori L.;growth and development |
| Author Name | Affiliation | | YUAN Hong-xia | School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou 215009, China | | QIN Fen-ju | School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou 215009, China | | GU Hua-jie | School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou 215009, China |
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| Abstract: |
| In order to evaluate the effects of 4-tert-octylphenol(4-t-OP)on the growth and development of silkworms(Bombyx mori L.), larvae were exposed to 4-t-OP(0.01, 0.02, 0.04 g·kg-1, and 0.08 g·kg-1 of nutrient)in the laboratory and the development velocity, growth weight, uniformity of growth and development, and vitality index were recorded during different developmental stages(larval, pupal and adult). After exposure to 0.01 g·kg-1 of 4-t-OP, decreases in development velocity(life span of larval and pupal stage), growth weight (larval weight and cocoon weight), and vitality(the fasting survival hours of the 3rd instar newly molted larvae, the percentage of cocoon death in pupa and adult of the 4th newly molted larvae)were observed at the larval and pupal stages. In addition, a decrease in dormant silkworm weight was detected in the different developmental stages, especially in the later developmental stages of larvae, pupation, and eclosion. Exposure to 4-t-OP might have accumulative effects on silkworms. When exposed to more than 0.08 g·kg-1 of 4-t-OP, silkworms could not complete their life cycles. These results demonstrate the growth and development toxicity of 4-t-OP on Bombyx mori, with distinctive concentration and time effects. |
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