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RISS 인기검색어
- 검색키워드
- 저자 : Chaoliang Lei (검색결과 3 건)
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김길남,신운철,윤철남,송혜승,Zhi-Juan Huang,Qiu-Ying Huang,Chaoliang Lei 한국응용곤충학회 2019 Journal of Asia-Pacific Entomology Vol.22 No.2
The oriental armyworm, Mythimna separata Walker, is an important insect pest in eastern Asia. Green (520 nm) light with an exposure time of > 30 min can result in a stronger phototactic response than the wavelengths of other lights in M. separata moths. The present study was mainly focused to estimate the activities of several enzymes (such as glyceraldehyde-3-phosphate dehydrogenase (GAPDH), glycerol-3-phosphate dehydrogenase (GPDH), lactate dehydrogenase (LDH) and 3-hydroxyacyl-CoA dehydrogenase (HOAD)) involved in the energy metabolism and a ratio of HOAD to GAPDH activity in M. separata moths exposed to the green light for different exposure times. Our results showed that when M. separata moths were exposed to the green light for 30 min, the activities of the two enzymes (GPDH and HOAD) and as well as the ratio of HOAD to GAPDH activity were significantly elevated. The activity of LDH was significantly increased in the moths exposed for 60 min. Furthermore, significant differences in enzyme activities between the male and female moths were recorded in 45 min exposure time group of the GAPDH, all light treatment groups of the LDH, and 45 min group of the ratio of HOAD to GAPDH activity, respectively. We suggest that when M. separata adult moths are exposed to the green light, these enzymes can be activated to produce energy for starting the phototactic behavior to the green light. Our findings may provide a theoretical basis for elucidating a reason of the phototactic behavior of nocturnal moths.
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Lin Qiu,Peipei Wang,Boyao Zhang,Lang Liu,Xiaoping Wang,Chaoliang Lei,Yongjun Lin,Weihua Ma 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.4
Transgenic rice expressing Bacillus thuringiensis (Bt) Cry1Ac and Cry2Aa toxins have proven resistant to lepidopteran pests in China, including the striped stem borer, Chilo suppressalis. Identifying the molecular mechanisms through which Cry toxins affect insect pests is essential, both for understanding the nature of their toxicity, and for assessing the potential for the development of resistance to such toxins. In this study, both onedimensional gel electrophoresis (1-DE), combined ligand blots and mass spectrometry, were used to identify proteins binding to the Cry1Ac and Cry2Aa toxins in brush border membrane vesicles (BBMVs) of the C. suppressalis larvae midgut. Aminopeptidase-N (APN), alkaline phosphatase (ALP), cadherin-like (CAD), ATP-binding cassette transporter subfamily C1 protein (ABCC1), actin, ATPase, alpha amylase, and heat shock protein cognate (HSPC), were detected in Cry1Ac binding bands, and APN, actin, ATPase and HSPC were identified as Cry2Aa potential binding proteins. The novel potential binding protein, delta-aminolevulinic acid dehydratase, was also detected in both Cry1Ac and Cry2Aa binding bands. This is the first study to comprehensively identify the proteins that bind to Cry1Ac and Cry2Aa toxins in C. suppressalis.
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Kil-Nam Kim,Hye-Seng Song,Chung-Seng Li,Qiu-Ying Huang,Chaoliang Lei 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.3
Recently, light traps equipped with light-emitting diode (LED) lights have been used to monitor and control nocturnal insect pests. The oriental armyworm, Mythimna separata Walker, is an important cosmopolitan agriculture pest. The phototactic responses of nocturnal insects, including moths are influenced by abiotic and biological factors. The present study aimed to evaluate the phototactic response to different wavelength LED lights to determine the wavelength to which M. separata adults are most sensitive, and then identify the effects of several factors on the phototactic response. Our experiments revealed that M. separata adult moths had a significantly higher attraction rate to the green (520 nm) LED light compared with other LED lights, the green LED light was 1.28 times more attractive the moths than the commercial double-wave light used as a control. The phototactic response of the adult moths was significantly influenced by several factors, including adaption time in darkness, age, mating status and sexuality. These findings suggest that using a green LED light as a light source in trap could be effective in monitoring or controlling M. separata moths. Our results may provide a theoretical and scientific basis for improving the light trap technique for M. separata moths.
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