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Song X, Huang T, Yan X, Zuo M, Pan Y, He H, Li Y, Zou Y, Du C, Zheng F, Yang T. The pederin-producing bacteria density dynamics in Paederus fuscipes at different developmental stages. Med Vet Entomol 2024; 38:59-72. [PMID: 37771128 DOI: 10.1111/mve.12697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/12/2023] [Indexed: 09/30/2023]
Abstract
Pederin, a defensive toxin in Paederus fuscipes, is produced by an uncultured Gram-negative symbiont, which establishes a stable symbiotic relationship with a female host before completion of metamorphosis. However, the transmission process of pederin-producing bacteria (PPB) in P. fuscipes at different life stages remains unknown. Herein, the PPB population dynamics and transcriptome atlas for P. fuscipes development (egg, first-instar larva, second-instar larva, pupa, and newly emerged female and male) were characterised. We found that a microbial layer containing PPB covered the eggshell, which could be sterilised by smearing the eggshell with streptomycin. Maternal secretions over the eggshell are likely the main PPB acquisition route for P. fuscipes offspring. The PPB density in eggs was significantly higher than that in other life stages (p < 0.05), which demonstrated that the beetle mothers gave more PPB than the larvae acquired. Physiological changes (hatching and eclosion) led to a decreased PPB density in P. fuscipes. Pattern recognition receptors related to Gram-negative bacteria recognition were identified from P. fuscipes transcriptomes across various life stages, which might be used to screen genes involved in PPB regulation. These results will help advance future efforts to determine the molecular mechanisms of PPB colonisation of P. fuscipes.
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Affiliation(s)
- Xuhao Song
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
- Institute of Ecology, China West Normal University, Nanchong, Sichuan, China
| | - Ting Huang
- National Base for International Science and Technology Cooperation, School of Pharmacy, Chengdu University, Chengdu, China
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu, China
| | - Xianghui Yan
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Mengyuan Zuo
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Ying Pan
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Hengguo He
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Yujie Li
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Yuan Zou
- School of Ecology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chao Du
- Faculty of Biological Science and Technology, Baotou Teachers' College, Baotou, Inner Mongolia, China
| | - Fake Zheng
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
| | - Tingbang Yang
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, Sichuan, China
- Institute of Ecology, China West Normal University, Nanchong, Sichuan, China
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Heydari A, Anlaş S, Bakhshi H, Koosha M, Choubdar N, Panahi-Moghadam S, Oshaghi MA. Molecular Characterization of Paederus Spp (Coleoptera: Staphylinidae, Paederinae) the Agent of Human Linear Dermatitis in the Caspian Sea Coast, North of Iran. J Arthropod Borne Dis 2023; 17:94-104. [PMID: 37609561 PMCID: PMC10440500 DOI: 10.18502/jad.v17i1.13206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/29/2023] [Indexed: 08/24/2023] Open
Abstract
Background A combined morphological and molecular survey was performed to determine the agent of human linear dermatitis Paederus Fabricius, 1775 (Coleoptera: Staphylinidae, Paederinae) species composition in Mazandaran Province in the Caspian Sea coast in northern Iran, where most of linear dermatitis cases of the country occurred. Methods Altogether, 397 Paederus specimens were collected from May to August 2021 and classified using morphological characters and ITS2-rDNA sequence analysis. Results Morphological investigation revealed that all the specimens were Paederus fuscipes. ITS2 polymerase chain reaction (PCR) direct-sequences and the profiles of restriction fragment length polymorphism (RFLP) derived from digestion of PCR products by HinfI, HpaII, and SalI enzymes were identical confirming the morphological results, implying that all specimens belonged to a single taxon. Conclusion Paederus fuscipes (Fabricius, 1775) is considered the dominant taxon and responsible for linear dermatitis in Mazandaran Province. To our knowledge, we have provided the first molecular typing of Paederus beetles at the species level, suggesting that ITS2-rDNA characterization is an alternative tool for species discrimination of Paederus spp.
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Affiliation(s)
- Abbas Heydari
- Department of Entomology, Garmsar Branch, Islamic Azad University, Garmsar, Iran
| | - Sinan Anlaş
- Celal Bayar University, Alaşehir Vocational School, Department of Entomology, Alaşehir, Manisa, Turkey
| | - Hasan Bakhshi
- Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Koosha
- Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nayyereh Choubdar
- Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Panahi-Moghadam
- Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Oshaghi
- Department of Vector Biology and Control of Diseases, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Choi YJ, Yi J, Lee CJ, Kim JW, Jeon MJ, Park JS, Cho SJ. Development of markers using microsatellite loci of two rove beetle species, Paederus fuscipes Curtis and Aleochara (Aleochara) curtula Goeze (Coleoptera: Staphylinidae), followed by analyses of genetic diversity and population structure. Genes Genomics 2022; 44:1471-1476. [PMID: 35982374 DOI: 10.1007/s13258-022-01293-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/18/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND The family Staphylinidae is the most speciose beetle group in the world. The outbreaks of two staphylinid species, Paederus fuscipes and Aleochara (Aleochara) curtula, were recently reported in South Korea. None of research about molecular markers and genetic diversity have been conducted in these two species. OBJECTIVE To develop microsatellite markers and analyze the genetic diversity and population structures of two rove beetle species. METHODS NGS was used to sequence whole genomes of two species, Paederus fuscipes and Aleochara (Aleochara) curtula. Microsatellite loci were selected with flanking primer sequences. Specimens of P. fuscipes and A. curtula were collected from three localities, respectively. Genetic diversity and population structure were analyzed using the newly developed microsatellite markers. RESULTS The number of alleles ranged 5.727-6.636 (average 6.242) and 2.182-5.364 (average 4.091), expected heterozygosity ranged 0.560-0.582 (average 0.570) and 0.368-0.564 (average 0.498), observed heterozygosity ranged 0.458-0.497 (average 0.472) and 0.418-0.644 (average 0.537) in P. fuscipes and A. curtula, respectively. Population structure indicates that individuals of A. curtula are clustered to groups where they were collected, but those of P. fuscipes are not. CONCLUSION Population structures of P. fuscipes were shallow. In A. curtula, however, it was apparent that the genetic compositions of the populations are different significantly depending on collection localities.
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Affiliation(s)
- Yeon-Jae Choi
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Jeesoo Yi
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Chan-Jun Lee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Ji-Wook Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea
| | - Mi-Jeong Jeon
- National Institute of Biological Resources, Environmental Research Complex, Incheon, 22689, Republic of Korea
| | - Jong-Seok Park
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea.
| | - Sung-Jin Cho
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju, 28644, Republic of Korea.
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Song X, Yang T, Zhou C, Luo S, Dong M, Yan X, Lv W, Zheng F, Zhou C, Wei Y. Differences in microbiome composition and transcriptome profiles between male and female Paederus fuscipes harbouring pederin-producing bacteria. Insect Mol Biol 2022; 31:457-470. [PMID: 35302262 DOI: 10.1111/imb.12772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/08/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Pederin, a group of antitumor compounds, is produced by an endosymbiotic bacterium of Paederus fuscipes. Pederin content differed between male and female P. fuscipes, but the reason why these differences are maintained remains unexplored. Here, the pederin-producing bacteria (PPB) infection rate in P. fuscipes was investigated. Furthermore, we assessed the microbiota structure differences in male and female P. fuscipes harbouring PPB and sequenced the transcriptome of both sexes to shed light on genes of interest. Of the 625 analysed beetles (275 females, 350 males), 96.36% of females and 31.14% of males were positive for PPB infection. PPB accounted for 54.36%-82.70% of the bacterial population in females but showed a much lower abundance in males (0.92%-3.87%). Reproductive organs possessed the highest PPB abundance compared with other parts of females, but no such relationships existed in males. Moreover, we provide the first transcriptome analysis of male and female P. fuscipes harbouring PPB and identified 8893 differentially expressed unigenes. Our results indicated that the pederin content difference between males and females might be caused by the PPB density difference in hosts. The biosequence data would be helpful for illustrating the mechanism that regulates PPB density in P. fuscipes.
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Affiliation(s)
- Xuhao Song
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
- Institute of Ecology, China West Normal University, Nanchong, China
- Key Laboratory of Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Tingbang Yang
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
- Institute of Ecology, China West Normal University, Nanchong, China
| | - Chuang Zhou
- Key Laboratory of Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, China
| | - Songkui Luo
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Meixiu Dong
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Xianghui Yan
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Weixiang Lv
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Fake Zheng
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Caiquan Zhou
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
- Institute of Ecology, China West Normal University, Nanchong, China
| | - Yi Wei
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
- Institute of Ecology, China West Normal University, Nanchong, China
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Khan MM, Hafeez M, Elgizawy K, Wang H, Zhao J, Cai W, Ma W, Hua H. Sublethal effects of chlorantraniliprole on Paederus fuscipes (Staphylinidae: Coleoptera), a general predator in paddle field. Environ Pollut 2021; 291:118171. [PMID: 34562692 DOI: 10.1016/j.envpol.2021.118171] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/17/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
Paederus fuscipes is a general predator in rice fields and a non-target organism of chlorantraniliprole, an effective insecticide for insect-pest control in paddy fields. Pesticide hazards to non-target organisms have been a growing global problem for decades. This study was designed to evaluate the toxicity of chlorantraniliprole at lethal and sublethal levels against P. fuscipes larvae and adults. The LC50 of chlorantraniliprole against P. fuscipes adults and larvae were respectively 535.49 and 111.24 mg a.i. L-1, which is higher than the dosage recommended for use in the field (59.38 mg a.i. L-1), but the LC30 and LC10 for larvae are lower than the recommended field dose which showed that the sublethal effects on immature stages are inevitable. Treatment at larval stage with LC30 of chlorantraniliprole significantly elongated the pre-imaginal developmental and pre-oviposition periods. Also, adults exposed directly to chlorantraniliprole oviposited significantly less number of eggs in both LC10 and LC30 treatments. Furthermore, the larval predation efficiency and female bodyweight were also reduced due to exposure to sublethal doses. Meanwhile, the activities of antioxidant (SOD, POD and CAT) and detoxification (P450, AChE and GST) enzymes were also significantly affected by the exposure to these sublethal concentrations. These findings showed that sublethal doses of chlorantraniliprole adversely influenced P. fuscipes development and physiology, and therefore its use as part of integrative pest management should be given further considerations.
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Affiliation(s)
- Muhammad Musa Khan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Research Centre of Biological Control, South China Agricultural University, Guangzhou, 510642, PR China
| | - Muhammad Hafeez
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences Hangzhou, 310021, China
| | - Karam Elgizawy
- Plant Protection Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh, 13736, Egypt
| | - Hanyu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Jing Zhao
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Wanlun Cai
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Weihua Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China.
| | - Hongxia Hua
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
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Khan MM, Khan AH, Ali MW, Hafeez M, Ali S, Du C, Fan Z, Sattar M, Hua H. Emamectin benzoate induced enzymatic and transcriptional alternation in detoxification mechanism of predatory beetle Paederus fuscipes (Coleoptera: Staphylinidae) at the sublethal concentration. Ecotoxicology 2021; 30:1227-1241. [PMID: 34117552 DOI: 10.1007/s10646-021-02426-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
In this study, the detoxification enzyme activity and the transcriptional profile changes in the second instar through RNA-sequencing technology due to emamectin benzoate (EB) were assessed. The cytochrome P450 monooxygenases (P450) enzyme activity was not altered by EB due to the change in concentration and exposure time in all treatments. The glutathione S-transferase (GST) enzyme was not considerably varying in all treatments, while exposure time significantly changed the enzyme activity. Results showed that the esterase (Ests) activity was elevated with the increasing concentrations and exposure time. Two libraries were generated, containing 107,767,542 and 108,142,289 clean reads for the samples treated with LC30 of EB and control. These reads were grouped into 218,070 transcripts and 38,097 unigenes. A total of 2257 differentially expressed genes (DEGs) were identified from these unigenes, of which 599 up-regulated and 1658 were down-regulated. The majority of these DEGs related to pesticides resistance were identified in numerous Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, e.g., steroid hormone biosynthesis, glutathione metabolism, drug metabolism-other enzymes, chemical carcinogenesis, pathways of cancer, metabolism of xenobiotics by cytochrome P450, drug metabolism of cytochrome P450, linoleic acid metabolism, retinol metabolism, and insect hormone biosynthesis. These pathways also shared the same genes as cytochrome P450 monooxygenases (P450s), glutathione S-transferases (GSTs), Esterase (Ests), UDP-glucosyltransferases (UGTs), and ATP-binding cassettes (ABCs). A heatmap analysis also showed that regulation of genes in a pathway causes a series of gene expression regulation in subsequent pathways. Our quantitative reverse transcription-PCR (qRT-PCR) results were consistent with the DEG's data of transcriptome analysis. The comprehensive transcriptome sequence resource attained through this study evidence that the EB induces significant modification in enzyme activity and transcriptome profile of Paederus fuscipes, which may enable more significant molecular underpinnings behind the insecticide-resistance mechanism for further investigations.
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Affiliation(s)
- Muhammad Musa Khan
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Research Centre of Biological Control, South China Agricultural University, Guangzhou, P.R. China.
| | - Aamir Hamid Khan
- National Key laboratory of crop genetic improvement, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, P.R. China
| | - Muhammad Waqar Ali
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, P.R. China
| | - Muhammad Hafeez
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, P.R. China
| | - Shahbaz Ali
- Fareed Biodiversity and Conservation Centre, Department of Agricultural Engineering, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan
| | - Cailian Du
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, P.R. China
| | - Zeyun Fan
- Key Laboratory of Bio-Pesticide Innovation and Application, Engineering Research Centre of Biological Control, South China Agricultural University, Guangzhou, P.R. China
| | - Muzammil Sattar
- Plant Protection Division, Nuclear Institute for Agriculture and Biology, Faisalabad, Punjab, Pakistan
| | - Hongxia Hua
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, P.R. China
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Ge C, Hu J, Zhao Z, Hoffmann AA, Ma S, Shen L, Fang J, Zhu J, Yu W, Jiang W. Phylogeny and Density Dynamics of Wolbachia Infection of the Health Pest Paederus fuscipes Curtis (Coleoptera: Staphylinidae). Insects 2020; 11:E625. [PMID: 32932887 DOI: 10.3390/insects11090625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 11/16/2022]
Abstract
The maternally inherited obligate intracellular bacteria Wolbachia infects the reproductive tissues of a wide range of arthropods and affects host reproduction. Wolbachia is a credible biocontrol agent for reducing the impact of diseases associated with arthropod vectors. Paederus fuscipes is a small staphylinid beetle that causes dermatitis linearis and conjunctivitis in humans when they come into contact with skin. Wolbachia occur in this beetle, but their relatedness to other Wolbachia, their infection dynamics, and their potential host effects remain unknown. In this study, we report the phylogenetic position and density dynamics of Wolbachia in P. fuscipes. The phylogeny of Wolbachia based on an analysis of MLST genotyping showed that the bacteria from P. fuscipes belong to supergroup B. Quantitative PCR indicated that the infection density in adults was higher than in any other life stage (egg, larva or pupa), and that reproductive tissue in adults had the highest infection densities, with similar densities in the sexes. These findings provide a starting point for understanding the Wolbachia infection dynamics in P. fuscipes, and interactions with other components of the microbiota.
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Guo M, Wang Z, Cai W, Hua H, Zhao J. Safety assessment of transgenic Cry2Aa rice to a generalist predator, Paederus fuscipes Curtis (Coleoptera: Staphylinidae). Ecotoxicol Environ Saf 2020; 200:110719. [PMID: 32460046 DOI: 10.1016/j.ecoenv.2020.110719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/27/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
The insecticidal crystal proteins of Cry2A family from Bacillus thuringiensis (Bt) are important candidate proteins expressed in gene pyramiding Bt crops. A transgenic rice line (T2A-1) harboring a synthetic Cry2A* (Cry2Aa) gene showed effective resistance to some lepidopteran rice pests. As a generalist predator in rice ecosystems, the rove beetle (Paederus fuscipes) can prey on many rice insect pests such as planthoppers. Considering the possible exposure of Cry2Aa to P. fuscipes through tritrophic food chain, it is necessary to assess the potential risks of T2A-1 rice to this predator. In this study, a tritrophic experiment was conducted to assess the prey-mediated effects of Cry2Aa on P. fuscipes through the T2A-1 rice-Nilaparvata lugens-P. fuscipes food chain. After preying on N. lugens nymphs reared on T2A-1, no accumulated Cry2Aa could be detected in P. fuscipes adults, despite Cry2Aa being detected in N. lugens. In addition, no harmful effects were detected on the life table parameters of P. fuscipes in this tritrophic chain. Additionally, direct exposure to a high dose of purified Cry2Aa protein, representing the worst case scenario, showed no significant adverse effects on the development of P. fuscipes. These results showed that transgenic Cry2Aa rice had no harmful effects on P. fuscipes.
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Affiliation(s)
- Mengjian Guo
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhengjie Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wanlun Cai
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Hongxia Hua
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jing Zhao
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
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Khan MM, Nawaz M, Hua H, Cai W, Zhao J. Lethal and sublethal effects of emamectin benzoate on the rove beetle, Paederus fuscipes, a non-target predator of rice brown planthopper, Nilaparvata lugens. Ecotoxicol Environ Saf 2018; 165:19-24. [PMID: 30173022 DOI: 10.1016/j.ecoenv.2018.08.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/11/2018] [Accepted: 08/14/2018] [Indexed: 05/27/2023]
Abstract
The use of pesticides in rice can not only manage the pest but also influence non-target organisms. The rove beetle (Paederus fuscipes), which is an important predator of the brown plant hopper (Nilaparvata lugens) in rice ecosystems, was tested to investigate acute and chronic effects of emamectin benzoate. The results from this study show that the LC50 of emamectin benzoate to adults of P. fuscipes at 72 h was 3.07 (1.84-4.54) mg a.i. L-1, whereas the LC50 of emamectin benzoate to the second instar larvae of P. fuscipes at 72 h was 2.58 (1.95-3.19) mg a.i. L-1. Tested sublethal doses (LC10 and LC30) had significant effects on the second instar developmental time of P. fuscipes compared with that of the control. The LC30 dose had a negative influence on the pre-imaginal developmental duration and the feeding potential of treated P. fuscipes larvae. Additionally, the LC30 reduced the pre-oviposition period, the fecundity and the body weight of adults emerged from treated larvae of P. fuscipes. In the sublethal experiment with adults, the fecundity and the feeding potential were significantly reduced at the LC30 dose. These results revealed that sublethal doses of emamectin benzoate negatively affected the development and biological activities of P. fuscipes, and we conclude that more attention should be paid to the use of this chemical as part of integrated pest management strategies.
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Affiliation(s)
- Muhammad Musa Khan
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Muhammad Nawaz
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Hongxia Hua
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Wanlun Cai
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Jing Zhao
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
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Liu Z, Zhang Q, Wu X, Yu W, Guo S. Insecticidal Mechanism of Wintergreen Oil Against the Health Pest Paederus fuscipes (Coleoptera: Staphylinidae). J Med Entomol 2018; 55:155-162. [PMID: 29029320 DOI: 10.1093/jme/tjx162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 06/07/2023]
Abstract
Paederus fuscipes, a health pest, causes dermatitis linearis in humans. Wintergreen oil exhibits optimal insecticidal activity against P. fuscipes. However, the insecticidal mechanism remains unclear not only in P. fuscipes but also in other pests. In this study, we explored the insecticidal mechanism of wintergreen oil in terms of its effect on the activity of acetylcholinesterase (AChE) enzyme and detoxifying enzymes (carboxylesterase, glutathione-S-transferase, and mixed function oxidase); such effect was studied by fumigation both in vivo and in vitro in P. fuscipes male and female adults. In the in vivo and in vitro experiments on male and female adults, wintergreen oil did not significantly affect the activities of the three detoxifying enzymes. Hence, the mode of action of wintergreen oil may be unrelated to the three detoxifying enzymes. Wintergreen oil significantly inhibited AChE activity. When wintergreen oil was tested at different times in vivo, the highest inhibition rates were 41.99% (male) and 40.91% (female). When different doses of wintergreen oil were used for in vivo treatment, the highest inhibition rates were 33.78% (male) and 43.33% (female). When wintergreen oil was tested in vitro, the highest inhibition rates were 31.06% (male) and 35.57% (female). In vitro with chlorpyrifos as a positive control, the AChE activity of 3-μl wintergreen oil treatment was significantly lower than that of 10 mg/liter chlorpyrifos in both P. fuscipes male and female adults. The results demonstrated that AChE is a potential key factor, maybe a target enzyme, in the mechanism of wintergreen oil against P. fuscipes.
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Affiliation(s)
- Zhiping Liu
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing, China
| | - Qiang Zhang
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing, China
| | - Xuan Wu
- Chongqing Animal Disease Control Center, Chongqing, China
| | - Wei Yu
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing, China
| | - Shengquan Guo
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing, China
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Lin A, Song N, Zhao X, Zhang F. Analysis of the nearly complete mitochondrial genome of Paederus fuscipes (Coleoptera: Staphylinidae). Mitochondrial DNA B Resour 2018; 3:85-87. [PMID: 33474075 PMCID: PMC7799980 DOI: 10.1080/23802359.2017.1422410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 12/26/2017] [Indexed: 11/09/2022] Open
Abstract
The nearly complete mitochondrial genome of Paederus fuscipes (GenBank accession no. MG581161) is 17,644 bp in size, containing 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and a partial control region. The gene order is similar to the typical insect mitochondrial genome. Maximum likelihood tree recovered the monophyly of Staphylininae, Pselaphinae, Paederinae and Aleocharinae. Additionally, Staphylininae is a sister group to Paederinae.
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Affiliation(s)
- Aili Lin
- Department of Entomology, College of Plant Protection, Henan Agricultural University, Zhengzhou, People’s Republic of China
| | - Nan Song
- Department of Entomology, College of Plant Protection, Henan Agricultural University, Zhengzhou, People’s Republic of China
| | - Xincheng Zhao
- Department of Entomology, College of Plant Protection, Henan Agricultural University, Zhengzhou, People’s Republic of China
| | - Fangmei Zhang
- Department of Entomology, Xinyang Agriculture and Forestry University, Xinyang, People’s Republic of China
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Zhang Q, Wu X, Liu Z. Primary Screening of Plant Essential Oils as Insecticides, Fumigants, and Repellents Against the Health Pest Paederus fuscipes (Coleoptera: Staphylinidae). J Econ Entomol 2016; 109:2388-2396. [PMID: 27744281 DOI: 10.1093/jee/tow232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
The contact and fumigant toxicity as well as repellent activity of 10 plant essential oils were evaluated against Paederus fuscipes Curtis adults. Essential oils were identified through gas chromatography-mass spectrometry analysis. Results showed that wintergreen oil exhibited optimal contact and fumigant toxicity but had no significant repellent activity against P. fuscipes. The LC50 values of fumigant toxicity of wintergreen oil were 2.680 and 1.591 µL/L air after 1 and 8 h of exposure, respectively. The LC50 values of contact toxicity of wintergreen oil were 0.086 and 0.060 µL/adult after 1 and 8 h of exposure, respectively. Cinnamon oil exhibited the highest repellent activity. In particular, 0.1 µL/cm2 cinnamon oil showed 100% repellency against P. fuscipes even for 6 h. Moreover, 0.01 and 0.005 µL/cm2 cinnamon oil conferred 80% repellency against P. fuscipes for 8 and 4 h, respectively. Overall, wintergreen oil is the best candidate insecticide and fumigant, and cinnamon oil is optimal as a repellent. The low-dose, rapid action of wintergreen oil and the low-dose, persistent repellency of cinnamon oil are important factors that suggest their use as insecticides, fumigants, and repellents against P. fuscipes.
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Affiliation(s)
- Qiang Zhang
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing 400715, China (; )
| | - Xuan Wu
- Chongqing Animal Disease Control Center, Chongqing 401147, China
| | - Zhiping Liu
- Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing 400715, China (; )
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