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您的检索式：作者名="Weilu Peng"
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| 1 | Identification of three major Bemisia tabaci biotypes in China based on morphological and DNA polymorphisms显示文摘The sweet potato whitefly, Bemisia tabaci, is a complex species, and many of its biotypes are important agricultural pests. The B and Q biotypes are invasive and coexist with the native Cv biotype on vegetable and ornamental crops in China. In this study, these three bio- types were identified based on their morphological characteristics, RAPD-PCR analysis, and DNA sequences of the COI gene. The ante-rior and posterior wax fringes of the B, Q, and Cv biotypes significantly differed from each other. Based on this morphological characteristic, the three biotypes can easily be distinguished in greenhouses and fields. Genomic DNA RAPD-PCR band patterns also revealed differences between these biotypes using the H16 primer. The B biotype has three bright DNA bands between 250 and 600 bp, the Q biotype only has one bright band at 300 bp, while the Cv biotype has no band between 250 and 500 bp. Both the Cv and Q biotypes have two bright bands at 750 and 1000 bp while the B biotype has only one band at 1000 bp. Based on the COI gene, the genetic identity between B and Cv, B and Q, and Q and CV was 85.8%, 94.7%, and 86.0%, respectively. The MP tree indicated that the phylogenetic relationship between the B and Q biotypes is much closer than that between the B and Cv or the Q and Cv biotypes. The uses of the morphological, RAPD-PCR, and DNA sequencing methods in biotype identification of B. tabaci are discussed. | Baoli Qiu Yanping Chen Li Liu Weilu Peng Xiaoxi Li Muhammad Z. Ahmed Vartika Mathur Yuzhou Du Shunxiang Ren | 2009 | Progress in Natural Science:Materials International2009，19，6： | 5 |
| 2 | Pd nanoparticles on defective polymer carbon nitride:Enhanced activity and origin for electrocatalytic hydrodechlorination reaction显示文摘Here we report a facile defect-engineering strategy on the support to optimize the metal-support interaction and enhance the metal’s electrocatalytic hydrodechlo rination perfo rmance in converting 2,4-dichlorophenol(2,4-DCP)to phenol.The specific activity of the Pd nanoparticles(Pd NPs)on defective polymer carbon nitride(Pd/PCN-x)reaches 0.09 min^(-1) m^-2Pd,which is 1.5 times that of the Pd NPs supported on the perfect PCN(Pd/PCN-0).The combined experimental and theoretical results demonstrate that the strong adsorption of phenol on Pd/PCN-0 passivates the active sites,limiting the dechlorination progress.The PCN-x containing-C≡N defects can effectively mediate the spatial configuration and electronic structure of Pd NPs,and promote the preferential adsorption of 2,4-DCP rather than phenol,resulting in an enhanced dechlorination efficiency. | Song Shu Peng Wang Wendong Zhang Weilu Wang Jianjun Li Yinghao Chu Fusheng Wei Xianming Zhang Guangming Jiang | 2020 | Chinese Chemical Letters2020，31，10： | 0 |
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