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P450 gene CYP321A8 is responsible for cross-resistance of insecticides in field populations of Spodoptera frugiperda

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Insect Science 2025年第1期32卷 227-242页

作者： Yumei Chen Yongjie Cen Yu Liu Yanan Peng Yiguang Lin Qili Feng Yong Xiao Sichun Zheng guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology Guangzhou Key Laboratory of Insect Development Regulation and Application ResearchInstitute of Insect Science and TechnologySchool of Life SciencesSouth China Normal UniversityGuangzhouChina Institute of Plant Protection Guangdong Academy of Agricultural SciencesKey Laboratory of Green Prevention and Control on Fruits and Vegetables in South China Ministry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of High Technology for Plant ProtectionGuangzhouChina

Continuous and long-term use of traditional and new pesticides can result in cross-resistance among pest populations in different *** on the mechanism of cross-resistance and related genes will help resistance management and field pest *** this study,the pesticide-resistance mechanism in Spodoptera frugiperda(FAW)was studied with field populations in 3 locations of South *** FAW populations were highly resistant to traditional insecticides,chlorpyrifos(organophosphate)and deltamethrin(pyrethroid),and had higher levels of cytochrome P450 activity than a non-resistant laboratory *** of P450 activity by piperonyl butoxide significantly increased the sensitivity of resistant FAW in 3 locations to chlorpyrifos,deltamethrin and chlorantraniliprole(amide),a new type of insecticide,suggesting that P450 detoxification is a critical factor for insecticide resistance in field FAW *** analysis indicated that 18 P450 genes were upregulated in the field FAW populations collected in 3 regions and in 2 consecutive years,with CYP321A8,the most significantly upregulated *** of CYP321A8 messenger RNA by RNA interference resulted in an increased sensitivity to the 3 tested insecticides in the field *** activity and molecular docking analyses indicated that CYP321A8 enzyme was able to metabolize the 3 tested insecticides and interact with 8 other types of insecticides,confirming that CYP321A8 is a key cross-resistance gene with a wide range of substrates in the field FAW populations across the different regions and can be used as a biomarker and target for management of FAW insecticide resistance in fields.

关键词： cross-resistance cytochrome P450 field population insecticide resistance Spodopterafrugiperda

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Classical biological control program for the mealybug Oracella acuta in guangdong province, China

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Insect Science 2010年第2期17卷 129-139页

作者： Stephen R. Clarke Hai-Bin Yu Mu-Rong Chen Gary L. DeBarr Jiang-Hua Sun US Department of Agriculture Forest Service Forest Health Protection Lufkin Texas USA forest pest control station of guangdong province Guangzhou China US Department of Agriculture Forest Service Southern Research Station Athens Geogria2 USA State Key Laboratory of Integrated Management of pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China

The mealybug Oracella acuta, native to the southeastern US, was accidentally introduced into slash pine plantations in guangdong province in China in 1988. A classical biological control program was initiated in 1995, and the parasitoids Allotropa oracellae, Acerophaus coccois, and Zarhopalus debarri were imported from the US. A total of 19 972 parasitized mealybugs were shipped to China from 1996-2004, from which 15 430 wasps emerged, 12 933 of which were the three target species. Efforts to establish a mass-rearing program for the parasitoids in China failed. Five field release sites were established, and 6 020 parasitoids were released. Only 118 individuals of the three imported species were collected during establishment checks, although several wasps were collected 1-2 years after the last parasitoid release. Over 2 000 Anagyrus dactylopii, a cosmopolitan parasitoid, emerged from the parasitized mealybugs collected, a majority from the Taishan area near the site of the original introduction ofO. acuta. To date the imported parasitoids have failed to establish, and natural enemies have not noticeably reduced mealybug populations.

关键词： Acerophagus coccois Anagyrus dactylopii Allotropa oracellae classical biological control Oracella acuta Zarhopalus debarri

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QUANTITATIVE DYNAMICS OF LARCH CATERPILLAR (DENDRALIMUS SUPERANS [BULLER]) AND THE BIOLOGICAL control

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Journal of Northeast forestry University 1994年第3期5卷 51-55页

作者：刘宽余刘玄基 1. Northeast forestry University China 2. forest pest and Disease control and Quarantine station Shangzhi County Heilongjiang Province

The relationship between pest population and other factors is rather complex within the forest ecosystem. A number of environmental factors, such as extreme climatic conditions,infection of natural enemies, may cause the death of pest insects directly. The effect of these factors reflects basically the situation and cause of death of insects at different stages of entire process of growth and development, so that they may be cmployed as the basic records of the quantitative dynamic of the population, and are of important value to the study of population quantitative dynamics of pests. Since Morris and Miller (1954) applied the life table technique to study natural population of insects, the insect lif e table technique has becoming an important means for the study of quantitative dynamics of pest populations. In foreign countries, the study of the life table of forest pest began in 50 year’s already. Moreovcr. the rcsults of invcstigation were applicd to the productive practice, such as thc sprucc budworm (Choristoneura fumiferana Clemens),winter moth (Opperophtera brumala Linnaeus), while in our country, the quantitative dynamics of many forest pests were not investigated. The larch caterpillar is one of the great pest of larch plantation in China. Every ycar, the outbrcak of this pcst occur in some places, causing large economic loss. Many studies wcre performcd on the biological and chenlical controls, but the investigation on quantitative dynamics of the natural population of larch caterpi1Iar was *** 1980, we studicd the quantitative dynamics of the natural population of larch caterpillar in Shangzhi County, Heilongiiang province and worked out lif e tables of two generations.

关键词： Larch caterpillar Quantitative dynamics of population Life table Biological control

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Pine wilt disease in Yunnan, China： Evidence of non-local pine sawyer Monochamus alternatus （Coleoptera： Cerambycidae） populations revealed by mitochondrial DNA

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Insect Science 2010年第5期17卷 439-447页

作者： Da-Ying Fu Shao-Ji Hu Hui Ye Robert A. Haack Ping-Yang Zhou School of Life Sciences Yunnan University Kunming China USDA forest Service Northern Research Station 1407 South Harrison Road East Lansing MI 48823 USA forest Diseases and pest control ancl Quarantine station of Dehong Prefecture Luxi Yunnan Province China

Monochamus alternatus （Hope） specimens were collected from nine geographical populations in China, where the pinewood nematode Bursaphelenchus xylophilus （Steiner et Buhrer） was present. There were seven populations in southwestern China in Yunnan province （Ruili, Wanding, Lianghe, Pu＇er, Huaning, Stone forest and Yongsheng）, one in central China in Hubei province （Wuhan）, and one in eastern China in Zhejiang province （Hangzhou）. Twenty-two polymorphic sites were recognized and 18 haplotypes were established by analyzing a 565 bp gene fragment of mitochondrial cytochrome oxidase subunit II （CO II）. Kimura two-parameter distances demonstrated that M. alternatus populations in Ruili, Wanding and Lianghe （in southwestern Yunnan） differed from the other four Yunnan populations but were similar to the Zhejiang population. No close relationship was found between the M. alternatus populations in Yunnan and Hubei. Phylogenetic reconstruction established a neighbor-joining （N J） tree, which divided haplotypes of southwestern Yunnan and the rest of Yunnan into different clades with considerable bootstrapping values. Analysis of molecular variance and spatial analysis of molecular variance also suggested significant genetic differentiation between M. alternatus populations in southwestern Yunnan and the rest of Yunnan. Our research suggests that non-local populations of M. alternates, possibly from eastern China, have become established in southwestern Yunnan. Key words mitochondrial DNA, non-local vector, pine wilt disease

关键词： mitochondrial DNA non-local vector pine wilt disease

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Colonization patterns of the red turpentine beetle, Dendroctonus valans （Coleoptera： Curculionidae）, in the Luliang Mountains, China

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Insect Science 2008年第4期15卷 349-354页

作者： Zhudong Liu Longwa Zhang Zhanghong Shi Bo Wang Wan Qiang Tao Jiang-hua Sun The State Key Laboratory of Integrated Management of pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing Anhui Agricultural University Hefei Beijing forest pest control station Beijing China

The alien red turpentine beetle （RTB）, Dendroctonus valens LeConte, is one of the most economically destructive forest pests in China, having killed more than 6 million pines in recent years. There is a need to understand the basic biology and ecology of the beetle in order to develop an effective monitoring and management strategy. In this study, the effects of hillside exposure （south- and north-facing）, host-tree locations according to relief （valley, mid-slope, and ridge-top） and tree diameters on RTB colonization were investigated in one valley （3 sites）. The results showed that （i） RTB clearly preferred colonizing pines growing on south-facing hillsides, especially in the valley; （ii） RTB preferred to colonize the pines growing at the valley rather than pines growing at mid-slope or on ridge-top; （iii） RTB preferred to colonize trees with large diameter over small and medium-sized pines; （iv） the attack density of RTBs （measured by pitch tubes/pine） was obviously higher on larger trees standing in the valley than other trees standing at other places. We conclude from RTB colonization patterns, that RTB prefers to attack large trees in the valley, which may be useful in developing a pest-management strategy.

关键词： colonization patterns Dendroctonus valens Pinus tabulaeformis tree diameter,tree exposure tree location according to relief

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control TECHNIQUE OF BACTERIAL CANKER OF POPLAR

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Journal of Northeast forestry University 1991年第2期2卷 7-16页

作者： Wu Xingyin Zhang Jinghuaforest pest control and Quarantine station of Archeng City of Heilongjiang provinceXiang Cunti Li Guisheng ’ Shao Zhongwen Liu Xiaoguang Ma LiyaNortheast forestry UniversityZhang Xianwen Li Zhuo Xie Guicai Dang WenqiangArcheng forestry Bureau of Heilongjiang province 1. forest pest control and Quarantine station of Archeng City of Heilongjiang province China 2. Northeast forestry University China 3. Archeng forestry Bureau of Heilongjiang province China

The poplar bacterial canker caused by Erwinia sp. is a serious disease spreading in most parts of Northeast China, where poplars are cultivated. The disease seriously infects those poplars belonging to section Aigeiros or the intersection hybrids of section Tacamahaca and section Aigeiros and their clones. Five fine poplar cultivars resistant to the bacterial canker have been obtained by screening tests. They are Lz2(Populus simonii × nigra var. italica), A15(P. × sp.), 613(P. × sp.), A102and A98(P. × simonii × sp.). The following chemicals are obviously effective, such as: 50% DT germicide, 40% XF-136 and 10% C.C.M.A. or 12.5% ramphencol and 50,000 ppm/ml validamycin, with which the stems or the roots can be watered.

关键词： Poplar Bacterial canker control technique

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Determinants of species assemblages of insect pests in alpine forest ecosystems of western China

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forest Ecosystems 2021年第4期8卷 948-960页

作者： Chun-Jing Wang Rong Wang Chun-Mei Yu Yongcuo Pubu Wan-Gui Sun Xiao-Feng Dang Qiang-Feng Li Ji-Zhong Wan State Key Laboratory of Plateau Ecology and Agriculture College of Agriculture and Animal HusbandryQinghai UniversityXining 810016China forestry and Grassland Planning Institute of Qinghai province Xining 810016China forest pest control and Quarantine station of Qinghai province Xining 810016China forestry station of Yushu City Yushu 815000China

Background:Insect pests are a significant threat to natural resources and social *** species assemblages of insect pests can predict spatiotemporal pest ***,research gaps remain regarding the mechanism for determining species assemblages of insect pests in alpine forest ***,we explored these determinants using a field investigation conducted for insect pests in a region of the Qinghai-Tibet *** assessed the species assemblages of insect pests in alpine forest ecosystems based on species co-occurrence patterns and species diversity(i.e.,observed diversity,dark diversity,community completeness,and species pool).A probabilistic model was used to test for statistically significant pairwise patterns of species co-occurrence using the presence-absence matrix of pest species based on species *** used ordinary least squares regression modeling to explore relationships between abiotic factors(i.e.,climate factors and human influence)and species ***:Positive pest species interactions and many association links can occur widely across different investigation sites and parts of plant hosts in alpine forest *** detected high dark diversity and low community completeness of insect pests in alpine forest *** temperature and precipitation could promote pest species diversity,particularly dark diversity and species *** influence could drive high levels of pest species diversity and lead to dark diversity and species *** completeness could be an effective indicator for insect pest risk ***:Our study provides new evidence for the determinants of insect pest species assemblages in alpine forest ecosystems from the perspectives of pest species interactions and abiotic *** findings of our study could reveal the mechanism for shaping species assemblages and support the prevention and control of insect pests in alpine forest ecosystems.

关键词： Alpine forest ecosystems Community completeness Dark diversity Insect pest Species co-occurrence Species diversity

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AN OBSERVATION OF FORMICA FUKAII WHEELER PREDATORY BEHAVIOR IN MONGOLIAN SCOTS PINE STANDS

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Journal of Northeast forestry University 1991年第2期2卷 100-104页

作者： Hou AijuNortheast forestry UniversityLou Wei Yan DunliangInstitute of Protective forest of Heilongjiang provinceTian Jinquanstation of the Prevention and Quarantine of forest Diseases and pest of Nehe County 1. Northeast forestry University China 2. Institute of Protective forest of Heilongjiang province China 3. station of the Prevention and Quarantine of forest Diseases and pest of Nehe County China

The pine sawfly (Acantholyda posticalis Matsumura) is a serious pest of Pinus sylvestris; P. tabulaeformis and P. koraiensis. Chemical control has been generally applied, but caused a lot of problems. We first found Formica fukaii (new record in China). The ants nesting on Carex sp. preying on pine sawflics is an important predator. When nests are removed on purpose, the ant's behavior is normal and the nest are expanded. It is a dominant species and a natural enemy of pine sawfly in Nehe County.

关键词： Formica fukaii control Acanlholyda posticalis Mongolian scots pine Artificial removing

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Effects of Different Eucalyptus Varieties(Clones) on Fitness and Development of Leptocybe invasa Fisher et La Salle

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Plant Diseases and pests 2014年第2期5卷 13-17页

作者： Kang Wentong Zhang Huafeng Chen Shunli Wei Chujiang Zhang Silu Disease and pest control and Quarantine station of Xiamen forest pest Management and Quarantine Bureau of Fujian province College of forestry Fujian Agriculture and Forestry University Disease and pest control and Quarantine station of Shaxian

The damage status of L. invasa on different Eucalyptus varieties( clones) were surveyed in the field,and effects of Eucalyptus varieties on fitness,development and reproduction of this pest were studied in the study. Results showed that:( 1) Most of the major Eucalyptus varieties( clones) could be attacked by L. invasa in Fujian province,and galls formed on E. urophylla × E. camaldulensis DH201-2,E. gradis QG3,E. dunnii,E. urophylla cU6,E. grandis × E. urophylla GL9,E. robusta and E. exserta; L. invasa could develop and complete its life cycle on above varieties.( 2) The damage degree of different Eucalyptus varieties( clones) was different from fitness degree to L. invasa. L. invasa had different selection frequency,fecundity and number of larvae per gall on different Eucalyptus varieties( clones).( 3) In addition to little difference in female ratios,L. invasa feeding different Eucalyptus varieties( clones) had extremely significant differences in the indicators such as number of emerged L. invasa,body mass of female adult,fecundity,longevity,etc.( 4) According to the fitness index( FI),the host plants of L. invasa were divided into 4 types by cluster analysis: suitable host,moderately suitable host,less suitable host and unsuitable host; the fecundity of each female was more than 70 eggs in suitable host,which was adequate to lead to potential population outbreak of the pest. Host fitness index could be used as a comprehensive evaluation index for screening of resistant varieties( clones) in production.

关键词： Leptocybe invasa Fisher et La Salle Eucalyptus varieties Host fitness Insect resistance

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Lutein delays photoreceptor degeneration in a mouse model of retinitis pigmentosa

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Neural Regeneration Research 2022年第7期17卷 1596-1603页

作者： Hui-Jun Zhang Xiao-Bin Liu Xiong-Min Chen Qi-Hang Kong Yu-Sang Liu Kwok-Fai So Jian-Su Chen Ying Xu Xue-Song Mi Shi-Bo Tang Department of Ophthalmology the First Affiliated Hospital of Jinan UniversityGuangzhouGuangdong ProvinceChina Department of Ophthalmology Guangzhou Panyu Central HospitalGuangzhouGuangdong ProvinceChina guangdong-Hong Kong-Macao Institute of CNS Regeneration Jinan UniversityGuangzhouGuangdong ProvinceChina Laboratory of Retinal Cell Biology Aier Eye InstituteChangshaHunan ProvinceChina Aier Academician station ChangshaHunan ProvinceChina Key Laboratory of CNS Regeneration(Jinan University) Ministry of EducationGuangzhouGuangdong ProvinceChina CoInnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina

Retinitis pigmentosa is a retinal disease characterized by photoreceptor *** is currently no effective treatment for retinitis *** a mixture of lutein and other antioxidant agents has shown promising effects in protecting the retina from degeneration,the role of lutein alone remains *** this study,we administered intragastric lutein to Pde6brd10 model mice,which display degeneration of retinal photoreceptors,on postnatal days 17(P17)to P25,when rod apoptosis reaches *** at the optimal protective dose of 200 mg/kg promoted the survival of photoreceptors compared with vehicle *** increased rhodopsin expression in rod cells and opsin expression in cone cells,in line with an increased survival rate of ***,lutein improved visual behavior,visual acuity,and retinal electroretinogram responses in Pde6brd10 ***,lutein reduced the expression of glial fibrillary acidic protein in Müller glial *** results of this study confirm the ability of lutein to postpone photoreceptor degeneration by reducing reactive gliosis of Müller cells in the retina and exerting anti-inflammatory *** study was approved by the Laboratory Animal Ethics Committee of Jinan University(approval ***-20181217-02)on December 17,2018.

关键词： anti-inflammation glial fibrillary acidic protein lutein microglia Pde6brd10(rd10)mouse photoreceptor reactive gliosis retinal degeneration retinal disease retinitis pigmentosa

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