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Comparison of larval performance and oviposition preference of Spodoptera frugiperda among three host plants:Potential risks to potato and tobacco crops

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Insect Science 2021年第3期28卷 602-610页

作者： Jing-Fei Guo Meng-Di Zhang Zu-Peng Gao Deng-Jie Wang Kang-Lai He Zhen-Ying Wang State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijingChina engineering research center of natural enemy insects/institute of biological control Jilin Agricultural UniversityChangchunChina Mianyang Academy of Agricultural Sciences MianyangSichuan ProvinceChina

Fall armyworm(FAW),Spodoptera frugiperda(***),is a majorpolyphagous pest with the potential to seriously damage various crops.A better under-standing of FAW's performance on different hosts may help to predict which plants willbe attacked when the preferred host is absent,and facilitate the development of effectivepest management *** compared the larval performance of FAW fed on maizewith that of FAW fed on potato and tobacco,which are important crops in China,usingan age-stage two-sex life table and adult female oviposition preference *** experiments with potato,tobacco,or maize as the host,FAW reared on maize exhib-ited the strongest performance with shorter developmental time in thc larval stage,longerlongevity,and a higher reproductive rate in *** oviposited on maize in pref-erence to potato or *** with larvae fed on maize,those fed on potato andtobacco exhibited significantly lower survival,with only 31.61%and 8.13%developing tothe adult stage,*** life table parameters,including the mean generationtime(T),net reproductive rate(R^(0)),finite rate of increase(λ),and intrinsic rate of nat-ural increase(r)were negatively affected in FAW fed on potato and *** resultssupport the preference-performance hypothesis,that is,that herbivore females maximizefitness by choosing host plants associated with strong larval *** lar-vae and adults performed poorly on potato and tobacco,their offspring will be capable ofcstablishing populations on them,posing a potential threat to these crops in China.

关键词： fall armyworm host suitability maize potato tobacco

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Rho 1 participates in parasitoid wasp eggs maturation and host cellular immunity inhibition

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Insect Science 2023年第3期30卷 677-692页

作者： Ruijuan Wang Zhe Lin Lizhen Zhou Caihua Chen Xianhao Yu Junje Zhang Zhen Zou Zhiqiang Lu Department of Entomology College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxi ProvinceChina State Key Laboratory of Integrated Management of Pest insects and Rodents Institute of ZoologyChinese Academy of SciencesBejingChina CAS center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBejingChina engineering research center of natural Enemies Institute of Biological ControlJilin Agricultural UniversityChangchunJilinChina

Endoparasitoid wasps introduce venom into their host insects during the egglaying *** proteins play various roles in the host physiology,development,immunity,and behavior manipulation and *** this study,we identified a venom protein,MmRhol,a small guanine nucleotide-binding protein derived from ovary in the endoparasitoid wasp Microplitis mediator and found that knockdown of its expression by RNA interference caused down-regulation of vitellogenin and juvenile hormone,egg production,and cocoons formation in the female *** demonstrated that MmRho1 entered the cotton bollworm's(host)hemocytes and suppressed cellular immune responses after parasitism using immunofluorescence ***,wasp MmRhol interacted with the cotton bollworm's actin cytoskeleton rearrangement regulator diaphanous by yeast 2-hybrid and glutathione s-transferase *** conclusion,this study indicates that MmRho1 plays dual roles in wasp development and the suppression of the host insect cellular immune responses.

关键词： cellular immune responses diaphanous endoparasitoid wasp juvenile hormone small guanine nucleotide-binding protein vitellogenesis

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Methylation across the central dogma in health and diseases: new therapeutic strategies

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Signal Transduction and Targeted Therapy 2023年第9期8卷 4142-4187页

作者： Ruochen Liu Erhu Zhao Huijuan Yu Chaoyu Yuan Muhammad Nadeem Abbas Hongjuan Cui State Key Laboratory of Resource insects Medical Research InstituteSouthwest UniversityChongqing 400715China Jinfeng Laboratory Chongqing 401329China Chongqing engineering and Technology research center for Silk Biomaterials and Regenerative Medicine Chongqing 400716China engineering research center for Cancer Biomedical and Translational Medicine Southwest UniversityChongqing 400715China

The proper transfer of genetic information from DNA to RNA to protein is essential for cell-fate control,development,and *** of DNA,RNAs,histones,and non-histone proteins is a reversible post-synthesis modification that finetunes gene expression and function in diverse physiological *** methylation caused by genetic mutations or environmental stimuli promotes various diseases and accelerates aging,necessitating the development of therapies to correct the disease-driver methylation *** this Review,we summarize the operating system of methylation across the central dogma,which includes writers,erasers,readers,and reader-independent *** then discuss how dysregulation of the system contributes to neurological disorders,cancer,and *** small-molecule compounds that target the modifiers show modest success in certain *** methylome-wide action and lack of specificity lead to undesirable biological effects and cytotoxicity,limiting their therapeutic application,especially for diseases with a monogenic cause or different directions of methylation *** tools capable of site-specific methylation manipulation hold great promise to solve this *** the refinement of delivery vehicles,these new tools are well positioned to advance the basic research and clinical translation of the methylation field.

关键词： diseases therapeutic limiting

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Flavonoid-producing tomato plants have a direct negative effect on the zoophytophagous biological control agent Oriussauteri

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Insect Science 2023年第1期30卷 173-184页

作者： Fengbo Yang Xinyi Zhang Haowei Shen Hu Xue Tian Tian Qinghe Zhang Jinyu Hu Hong Tong Youjun Zhang Qi Su Hubei engineering Technology center for Forewarning and Management of Agricultural and Forestry Pests College of AgricultureYangtze UniversityJingzhouHubei ProvinceChina institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBejingChina

Orius sauteri(Poppius)(Hemiptera:Anthocoridae)is often used for biological control of small arthropod pests in greenhouse vegetable production systems in *** addition to feeding on arthropod prey,*** consumes small quantities of plant *** studies demonstrated that tomato plant chemistry confers antixenosis resistance to phloem-feeding whiteflies,but the potential nontarget effects of phytochemicals on the beneficial predator *** are *** of *** confined to near-isogenic lines(NILs)of tomatoes producing high levels offlavonoids(NIL-purple hypocotyl;resistant to whiteflies)and low levels of flavonoids(NIL-green hypocotyl;susceptible to whiteflies)revealed that *** had reduced oviposition,nymphal survival,and development on resistant plants,even if they were also provided with prey that did not feed on the host ***,*** showed a significant ovipositional preference in choice assays,laying significantly more eggs on susceptible than on resistant *** gut content analysis using the specific chloroplast trnL gene from tomato confirmed that adult and immature *** feed on both resistant and susceptible genotypes,and feeding behavior assays revealed that resistance did not affect plant feeding or prey acceptance by *** *** results demonstrate a direct negative effect of phytochemicals on a nontarget beneficial species and indicate that resistance mediated by phytochemicals can affect organisms that do not solely feed on phloem *** results also indicate that the mode of action and the potential ecological effects of phytochemicalmediated resistance are broader than previously recognized.

关键词： biological control host plant resistance insect resistance integrated pest management natural enemy phytochemistry

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直翅目虫草(肉座菌目):物种多样性及其与寄主的关系

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菌物学报 2020年第4期39卷 707-722页

作者：查岭生叶磊黄仕珂 Saranyaphat Boonmee Prapassorn D.Eungwanichayapant Kevin D.Hyde 文庭池淮北师范大学生命科学学院安徽淮北235000 贵州大学西南药用生物资源教育部工程研究中心贵州贵阳550025 center of Excellence in Fungal research Mae Fah Luang UniversityChiang Rai 57100Thailand 中国科学院昆明植物研究所经济植物和生物技术重点实验室云南昆明650201 世界农用林业中心中国和东亚办公室云南昆明650201

迄今为止,以直翅目昆虫为寄主的虫草共报道25种,本研究详细介绍了它们的种类、寄主与分布,并给出了相关的分类学注释。ITS和tef1-α基因联合数据的分子系统发育显示,直翅目虫草分别隶属于白僵菌属Beauveria、绿僵菌属Metarhizium和线虫... 详细信息

迄今为止,以直翅目昆虫为寄主的虫草共报道25种,本研究详细介绍了它们的种类、寄主与分布,并给出了相关的分类学注释。ITS和tef1-α基因联合数据的分子系统发育显示,直翅目虫草分别隶属于白僵菌属Beauveria、绿僵菌属Metarhizium和线虫草属Ophiocordyceps 3个属。基于直翅目昆虫六大类群的生态习性特点,分析并讨论了直翅目虫草物种多样性与寄主的关系。以两种白僵菌Beauveria及戴氏虫草Metacordyceps taii(贵州绿僵菌Metarhizium guizhouense的异名)为例,介绍了虫草的根状菌索,一种介于子实体和孢梗束形体之间的根须状结构。种类修订:蟋螽白僵菌新组合Beauveria grylli ***.≡蟋蟀虫草Cordyceps grylli=Beauveria loeiensis,Beauveria kirkii ***.≡Cordyceps kirkii。寄主更正:蟋螽白僵菌的寄主由原来的蟋蟀成虫(蟋蟀科Gryllidae)更正为螽斯(蟋螽)若虫(蟋螽科Gryllacrididae),蟋蟀线虫草Ophiocordycepstettigonia寄主由原来的螽斯成虫(螽斯科Tettigoniidae:螽斯属Tettigonia)更正为蟋蟀成虫(蟋蟀科)。

关键词：白僵菌属生物防治生态习性螽斯蝗虫新组合分类

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