李正西 - 中国农业大学 - 植物保护学院

个人简介

工作经历 2012.01至今中国农业大学昆虫学系教授/博士生导师 2003.09-2011.12 中国农业大学昆虫学系副教授 2002.10-2003.10 英国洛桑研究所生化系博士后（分子昆虫学） 2001.07-2003.08 中国农业大学昆虫学系讲师教育经历 1983.09-1987.07 湖南师范大学学士（生物学） 1987.09-1990.07 湖南农业大学硕士（昆虫学） 1998.09-2001.07 中国农业大学博士（昆虫学）学术兼职《昆虫学报》、《应用昆虫学报》、《植物保护学报》、《植物保护》和《微生物学报》编委科研项目主持或参加国家自然科学基金、科技部、教育部、北京市自然科学基金项目十多项。近年主持项目 2018.1-2021.12 主持人，国家自然科学基金项目：基于烟粉虱生殖不亲和系的种群调控及其内在机制（31772169）[71.6万] 2014.1-2017.12 主持人，国家自然科学基金项目：蚜虫从头合成法呢烯的分子基础及其调控机理（31371940）[80万] 2014.1-2016.12 主持人，教育部博士点基金：Wolbachia诱导的胞质不亲和性及其在烟粉虱种群控制中的作用机制（20130008110011）[12万] 2012.1-2015.12 主持人，国家自然科学基金项目：蚜虫类异戊二烯通路关键酶基因的比较功能研究（31171845）[64万] 2011.1-2013.12 主持人，国家自然科学基金项目：Wolbachia在烟粉虱种群分化与竞争取代中的作用及其机制（31071748）[35万]

研究领域

（一）蚜虫萜类碳骨架生物合成通路的功能可塑性及其调控机理 1. 蚜虫异戊烯转移酶除合成萜类碳骨架之外的兼职功能。 2. 蚜虫萜类碳骨架生物合成通路的关联生化途径及环境调控机制。（二）昆虫生殖不亲和系的构建及其对农业害虫种群的调控机制 1. 基于外源Wolbachia所诱导的胞质不亲和性构建昆虫生殖不亲和系。 2. 探讨利用生殖不亲和系控制农业害虫种群的可行性。

近期论文

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Both farnesyl diphosphate synthase genes are involved in the production of alarm pheromone in the green peach aphid Myzus persicae Spatiotemporal expression profiling of the farnesyl diphosphate synthase genes in aphids and analysis of their associations with the biosynthesis of alarm pheromone The terpenoid backbone biosynthesis pathway directly affects the biosynthesis of alarm pheromone in the aphid Host plants and obligate endosymbionts are not the sources for biosynthesis of the aphid alarm pheromone Establishment of the cytoplasmic incompatibility-inducing Wolbachia strain wMel in an important agricultural pest insect A novel W olbachia strain from the rice moth C orcyra cephalonica induces reproductive incompatibility in the whitefly B emisia tabaci : sequence typing combined with phenotypic evidence: A CI-inducing Wolbachia strain Bidirectional Cytoplasmic Incompatibility Induced by Cross-Order Transfection of Wolbachia: Implications for Control of the Host Population A Type-III Insect Geranylgeranyl Diphosphate Synthase with a Novel Catalytic Property In vitro and in vivo characterization of a novel insect decaprenyl diphosphate synthase: A two-major step catalytic mechanism is proposed Influences of tetracycline on the reproduction of the B biotype of Bemisia tabaci (Homoptera: Aleyrodidae) Functional analysis and molecular docking identify two active short-chain prenyltransferases in the green peach aphid, Myzus persicae In Silico and In Vitro Analyses Identified Three Amino Acid Residues Critical to the Catalysis of Two Aphid Farnesyl Diphosphate Synthase Molecular cloning and characterization of a prenyltransferase from the cotton aphid, Aphis gossypii Distribution and diversity of Wolbachia in different populations of the wheat aphid Sitobion miscanthi (Hemiptera: Aphididae) in China Two different farnesyl diphosphate synthase genes exist in the genome of the green peach aphid, Myzus persicae [Wolbachia extensively harbored by Bemisia tabaci in China] Molecular differentiation of the four most commonly occuring Trichogramma (Hymenoptera: Trichogrammatidae) species in China Prevalence of Wolbachia Infection in Bemisia tabaci Molecular phylogenetic analysis reveals at least five genetic races ofBemisia tabaci in China Rapid identification of B biotype of Bemisia tabaci (Homoptera: Aleyrodidae) based on analysis of internally transcribed spacer 1 sequence Molecular differentiation of the B biotype from other biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae), based on internally transcribed spacer 1 sequences Identification and expression of odorant binding proteins of the malaria-carrying mosquito Anopheles gambiae and Anopheles arabiensis Identification and expression profiling of putative odorant-binding proteins in the malaria mosquitoes, Anopheles gambiae and A. arabiensis Using internally transcribed spacer 2 sequences to re-examine the taxonomic status of several cryptic species of Trichogramma (Hymenoptera: Trichogrammatidae) Bioinformatics-Based Identification of Chemosensory Proteins in African Malaria Mosquito, Anopheles gambiae Identification of Chinese populations of Bemisia tabaci (Gennadius) by analyzing ITS1 sequence