Parasite最新文献_第4页

Diversity of Babesia spp. in skunks from selected states in the United States of America. 美国部分州臭鼬中巴贝斯菌属的多样性。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-07-24 DOI: 10.1051/parasite/2024043

Kayla B Garrett, Justin Brown, Mourad Gabriel, Robert Dowler, J Clint Perkins, Dianna Krejsa, Michael J Yabsley

{"title":"Diversity of Babesia spp. in skunks from selected states in the United States of America.","authors":"Kayla B Garrett, Justin Brown, Mourad Gabriel, Robert Dowler, J Clint Perkins, Dianna Krejsa, Michael J Yabsley","doi":"10.1051/parasite/2024043","DOIUrl":"10.1051/parasite/2024043","url":null,"abstract":"Babesia species are intraerythrocytic protozoan parasites that infect a variety of hosts. The goal of this study was to evaluate the piroplasm species present in skunks in various states in the United States and determine whether there was any geographic variation. Spleen, whole blood, or blood on filter paper were received from Pennsylvania, Kentucky, North Carolina, South Carolina, Georgia, Missouri, Louisiana, Texas, Kansas, and California, and were tested for Babesia sp. We tested four species of skunks including striped skunk (Mephitis mephitis, n = 72), eastern spotted skunk (Spilogale putorius, n = 28), western spotted skunk (Spilogale gracilis, n = 15), and hog-nosed skunk (Conepatus leuconotus, n = 11). A PCR assay targeting the 18S rRNA region and cox1 region were used to determine if skunks were infected with piroplasms and for phylogenetic analyses. A total of 48.4% (61/126) of skunks tested positive for a Babesia species. Both the 18S and cox1 analysis supported a skunk-specific Babesia microti-like sp. of carnivores as well as a species in the B. microti complex that is phylogenetically unique from both B. microti of humans and the B. microti-like sp. of carnivores. In the 18S analysis, there was a third species of Babesia in hog-nosed skunks in the western piroplasm group. This study shows that at least three species of piroplasms occur in skunk species in the United States and further highlights the importance of phylogenetic analyses and the use of multiple gene targets when studying piroplasms.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11271706/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141760255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of intestinal trichomonads in captive non-human primates in China. 中国圈养非人灵长类动物肠道滴虫的流行情况。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-26 DOI: 10.1051/parasite/2024018

Ping-Ping Ma, Yang Zou, Wen-Jie Mu, Yue-Yue Zhang, Ya-Qi Li, Zhong-Li Liu, Long Zhang, Li-Xian Chen, Guo-Hua Liu, Shuai Wang

{"title":"Prevalence of intestinal trichomonads in captive non-human primates in China.","authors":"Ping-Ping Ma, Yang Zou, Wen-Jie Mu, Yue-Yue Zhang, Ya-Qi Li, Zhong-Li Liu, Long Zhang, Li-Xian Chen, Guo-Hua Liu, Shuai Wang","doi":"10.1051/parasite/2024018","DOIUrl":"10.1051/parasite/2024018","url":null,"abstract":"Trichomonads are protozoan symbionts with the capacity to infect vertebrates including humans and non-human primates (NHPs), sometimes with pathogenic effects. However, their diversity and prevalence in NHPs in China are poorly understood. A total of 533 fecal samples were collected from captive NHPs in Yunnan Province, China, of which 461 samples from Macaca fascicularis and 72 from Macaca mulatta. Trichomonadidae species were identified using PCR amplification of the ITS-1/5.8S/ITS-2 sequences. The overall prevalence of trichomonads in NHPs was determined to be 11.4% (61/533), with gender, diarrhea, and region identified as potential risk factors for the infections. Sequence alignment and phylogenetic analysis identified three species of trichomonads, i.e., Trichomitopsis minor (n = 45), Pentatrichomonas hominis (n = 11), and Tetratrichomonas sp. (n = 5). To the best of our knowledge, this is the first study to report Trichomitopsis minor infection in NHPs in China. Of note, Pentatrichomonas hominis is generally recognized as a parasitic organism affecting humans. Collectively, our results suggest that NHPs are potential sources of zoonotic trichomonad infections, highlighting the importance of surveillance and control measures to protect human and animal populations.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10964852/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140288714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of an accusation of a possible breach of ethics in an article published in Parasite. 对《寄生虫》杂志发表的一篇文章中可能存在的违反职业道德的指控进行分析。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-05-15 DOI: 10.1051/parasite/2024022

引用次数: 0

A single-pass type I membrane protein, mannose-specific L-type lectin, potentially involved in the adhesion and invasion of Cryptosporidium parvum. 一种单通道 I 型膜蛋白，即甘露糖特异性 L 型凝集素，可能参与了副猪隐孢子虫的粘附和入侵。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-08-29 DOI: 10.1051/parasite/2024051

Xiaotian Zhang, Songying Sun, Wenchao Zhao, Luyang Wang, Guanda Liang, Yuexin Wang, Baiyi Cai, Longxian Zhang, Xiaoying Li, Sumei Zhang

{"title":"A single-pass type I membrane protein, mannose-specific L-type lectin, potentially involved in the adhesion and invasion of Cryptosporidium parvum.","authors":"Xiaotian Zhang, Songying Sun, Wenchao Zhao, Luyang Wang, Guanda Liang, Yuexin Wang, Baiyi Cai, Longxian Zhang, Xiaoying Li, Sumei Zhang","doi":"10.1051/parasite/2024051","DOIUrl":"10.1051/parasite/2024051","url":null,"abstract":"Cryptosporidium is a globally distributed zoonotic protozoan parasite that can cause severe diarrhea in humans and animals. L-type lectins are carbohydrate-binding proteins involved in multiple pathways in animals and plants, including protein transportation, secretion, innate immunity, and the unfolded protein response signaling pathway. However, the biological function of the L-type lectins remains unknown in Cryptosporidium parvum. Here, we preliminarily characterized an L-type lectin in C. parvum (CpLTL) that contains a lectin-leg-like domain. Immunofluorescence assay confirmed that CpLTL is located on the wall of oocysts, the surface of the mid-anterior region of the sporozoite and the cytoplasm of merozoites. The involvement of CpLTL in parasite invasion is partly supported by experiments showing that an anti-CpLTL antibody could partially block the invasion of C. parvum sporozoites into host cells. Moreover, the recombinant CpLTL showed binding ability with mannose and the surface of host cells, and competitively inhibited the invasion of C. parvum. Two host cell proteins were identified by proteomics which should be prioritized for future validation of CpLTL-binding. Our data indicated that CpLTL is potentially involved in the adhesion and invasion of C. parvum.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11363900/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142110552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proliferation of MDSCs may indicate a lower ^CD4+ T cell immune response in schistosomiasis japonica. MDSCs 的增殖可能表明日本血吸虫病的 CD4+ T 细胞免疫反应较低。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-08-29 DOI: 10.1051/parasite/2024050

Bo Peng, Yulin Luo, Shudong Xie, Quan Zhuang, Junhui Li, Pengpeng Zhang, Kai Liu, Yu Zhang, Chen Zhou, Chen Guo, Zhaoqin Zhou, Jie Zhou, Yu Cai, Meng Xia, Ke Cheng, Yingzi Ming

{"title":"Proliferation of MDSCs may indicate a lower CD4+ T cell immune response in schistosomiasis japonica.","authors":"Bo Peng, Yulin Luo, Shudong Xie, Quan Zhuang, Junhui Li, Pengpeng Zhang, Kai Liu, Yu Zhang, Chen Zhou, Chen Guo, Zhaoqin Zhou, Jie Zhou, Yu Cai, Meng Xia, Ke Cheng, Yingzi Ming","doi":"10.1051/parasite/2024050","DOIUrl":"10.1051/parasite/2024050","url":null,"abstract":"Background: Schistosoma japonicum (S. japonicum) is the main species of Schistosoma prevalent in China. Myeloid-derived suppressor cells (MDSCs) are important immunoregulatory cells and generally expand in parasite infection, but there is little research relating to MDSCs in Schistosoma infection.Methods: Fifty-six S. japonicum-infected patients were included in this study. MDSCs and percentages and absolute cell numbers of lymphocyte subsets, including CD3+ T cells, CD4+ T cells, CD8+ T cells, B cells and natural killer (NK) cells were detected using flow cytometry. The degree of liver fibrosis was determined using color Doppler ultrasound.Results: Patients infected with S. japonicum had a much higher percentage of MDSCs among peripheral blood mononuclear cells (PBMCs) than the healthy control. Regarding subpopulations of MDSCs, the percentage of granulocytic myeloid-derived suppressor cells (G-MDSCs) was clearly increased. Correlation analysis showed that the absolute cell counts of T-cell subsets correlated negatively with the percentages of MDSCs and G-MDSCs among PBMCs. The percentage of G-MDSCs in PBMCs was also significantly higher in patients with liver fibrosis diagnosed by color doppler ultrasound (grade > 0), and the percentage of G-MDSCs in PBMCs and liver fibrosis grading based on ultrasound showed a positive correlation.Conclusion: S. japonicum infection contributes to an increase in MDSCs, especially G-MDSCs, whose proliferation may inhibit the number of CD4+ T cells in peripheral blood. Meanwhile, there is a close relationship between proliferation of G-MDSCs and liver fibrosis in S. japonicum-infected patients.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11363901/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142110554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bed bug control with various dusts: Efficacy comparison between silicon dioxide, diatomaceous earth, and Sommières earth. 用各种粉尘控制臭虫：二氧化硅、硅藻土和索米埃尔土的功效比较。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-07-24 DOI: 10.1051/parasite/2024040

Halilou Almou Oumarou, Harouna Tahirou Hima, Jean Michel Berenger, Grégory Michel, Olivier Grauby, Philippe Parola, Christelle Pomares, Pascal Delaunay

{"title":"Bed bug control with various dusts: Efficacy comparison between silicon dioxide, diatomaceous earth, and Sommières earth.","authors":"Halilou Almou Oumarou, Harouna Tahirou Hima, Jean Michel Berenger, Grégory Michel, Olivier Grauby, Philippe Parola, Christelle Pomares, Pascal Delaunay","doi":"10.1051/parasite/2024040","DOIUrl":"10.1051/parasite/2024040","url":null,"abstract":"Bed bugs are considered a major public health problem in industrialized countries. Usually, bed bug infestations are managed using a combination of physical and chemical methods. In recent years, new strategies for bed bug control have emerged, particularly the use of dusts like diatomaceous earth and silicon dioxide. However, in Europe, the use of silicon dioxide is restricted to professional, while diatomaceous earth can be harmful to the lungs. This study aimed to assess bed bug mortality rates associated with Sommières earth, green clay, talc, and sodium bicarbonate compared to silicon dioxide and diatomaceous earth from a pest management company, diatomaceous earth for litter conditioner, and diatomaceous earth from a supermarket. We tested permanent exposure, short exposure, horizontal transfer and repellent effect on two bed bug colonies. Sommières earth demonstrated efficacy ranging from 75% to 100% in permanent and short exposures, similar to the efficacy of diatomaceous earth from the pest management company. On the contrary, diatomaceous earth for litter conditioner and diatomaceous earth from a supermarket, green clay, talc, and sodium bicarbonate were found to be ineffective. This study demonstrates, for the first time, the efficacy of Sommières earth against bed bugs, but also highlights the variability in efficacy of diatomaceous earths on bed bugs depending on their quality.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11271705/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141760254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular characterization of EcCLP1, a new putative cathepsin L protease from Echinococcus canadensis. EcCLP1 的分子特征，ECLP1 是一种来自犬棘球蚴的新的推定 cathepsin L 蛋白酶。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-07-09 DOI: 10.1051/parasite/2024036

Ariel Naidich, Ariana M Gutierrez, Federico Camicia

{"title":"Molecular characterization of EcCLP1, a new putative cathepsin L protease from Echinococcus canadensis.","authors":"Ariel Naidich, Ariana M Gutierrez, Federico Camicia","doi":"10.1051/parasite/2024036","DOIUrl":"10.1051/parasite/2024036","url":null,"abstract":"Echinococcus granulosus sensu lato is a platyhelminth parasite and the etiological cause of cystic echinococcosis (CE), a zoonotic and neglected disease that infects animals and humans worldwide. As a part of the biological arsenal of the parasite, cathepsin L proteases are a group of proteins that are believed to be essential for parasite penetration, immune evasion, and establishment in the tissues of the host. In this work, we have cloned and sequenced a new putative cathepsin L protease from Echinococcus canadensis (EcCLP1). The bioinformatic analysis suggests that EcCLP1 could be synthesized as a zymogen and activated after proteolytic cleavage. The multiple sequence alignment with other cathepsin proteases reveals important functional conserved features like a conserved active site, an N-linked glycosylation residue, a catalytic triad, an oxyanion hole, and three putative disulfide bonds. The phylogenetic analysis suggests that EcCLP1 could indeed be a cathepsin L cysteine protease from clade 1 as it grouped with cathepsins from other species in this clade. Modeling studies suggest that EcCLP1 has two domains forming a cleft where the active site is located and an occluding role for the propeptide. The transcriptomic analysis reveals different levels of cathepsin transcript expression along the different stages of the parasite life cycle. The whole-mount immunohistochemistry shows an interesting superficial punctate pattern of staining which suggests a secretory pattern of expression. The putative cathepsin L protease characterized here may represent an interesting tool for diagnostic purposes, vaccine design, or a new pharmacological target for antiparasitic intervention.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11242924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141590987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence and risk factors of Toxoplasma gondii infection in dairy cattle from the Western Region of Thailand. 泰国西部地区奶牛弓形虫感染的流行率和风险因素。

IF 2.3 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-07-09 DOI: 10.1051/parasite/2024038

Napasaporn Wannapong, Preeda Lertwatcharasarakul, Theera Rukkwamsuk

{"title":"Prevalence and risk factors of Toxoplasma gondii infection in dairy cattle from the Western Region of Thailand.","authors":"Napasaporn Wannapong, Preeda Lertwatcharasarakul, Theera Rukkwamsuk","doi":"10.1051/parasite/2024038","DOIUrl":"10.1051/parasite/2024038","url":null,"abstract":"In total, 901 dairy cow sera and data were collected from 51 farms in Nakhon Pathom, Ratchaburi and Kanchanaburi provinces (Western Region of Thailand). Serum samples were processed via the multispecies ELISA method to detect IgG antibodies against Toxoplasma gondii infection. The results demonstrated that the calculated true prevalence was 1.48% (95% CI, 0.64-2.75%) for the individual-level and 29.41% (95% CI, 18.71-43%) for the farm-level. The univariate risk factor analysis showed that the number of total owned cats, the presence of stray cats, and the frequency of cleaning per day were significant factors (p < 0.2). These three factors were subjected to logistic regression analysis, and the results revealed that the frequency of cleaning farms per day was a potential risk factor for T. gondii-seropositive farms (OR = 2.745, 95% CI, 1.15-8.69, p = 0.02). The frequency of cleaning might increase the T. gondii oocyst distribution within the barn area, thus increasing the possibility of infection. Our findings show that T. gondii continues to circulate in the dairy cow population in the western part of Thailand. The presence of cats on farms was not found to be associated with T. gondii infection, but the high frequency of cleaning the floor was, and contributed to the potential risk of infection.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11242923/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141590988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radiation dose fractionation and its potential hormetic effects on male Glossina palpalis gambiensis (Diptera: Glossinidae): a comparative study of reproductive and flight quality parameters. 辐射剂量分馏及其对雄性Glossina palpalis gambiensis (Diptera: Glossinidae)的潜在激素效应：生殖和飞行质量参数的比较研究。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-02-08 DOI: 10.1051/parasite/2024001

Bénéwendé Aristide Kaboré, Syeda Dua Taqi, Athumani Mkinga, Anibal E Morales Zambrana, Robert L Mach, Marc Jb Vreysen, Chantel J de Beer

{"title":"Radiation dose fractionation and its potential hormetic effects on male Glossina palpalis gambiensis (Diptera: Glossinidae): a comparative study of reproductive and flight quality parameters.","authors":"Bénéwendé Aristide Kaboré, Syeda Dua Taqi, Athumani Mkinga, Anibal E Morales Zambrana, Robert L Mach, Marc Jb Vreysen, Chantel J de Beer","doi":"10.1051/parasite/2024001","DOIUrl":"10.1051/parasite/2024001","url":null,"abstract":"One of the most critical factors for implementing the sterile insect technique for the management of tsetse is the production of large quantities of highly competitive sterile males in the field. Several factors may influence the biological quality of sterile males, but optimizing the irradiation protocols to limit unwanted somatic cell damage could improve male performance. This study evaluated the effect of fractionation of gamma radiation doses on the fertility and flight quality of male Glossina palpalis gambiensis. Induced sterility was assessed by mating irradiated males with virgin fertile females. Flight quality was assessed using a standard protocol. The male flies were irradiated as pupae on day 23-27 post larviposition with 110 Gy, either in a single dose or in fractionations of 10 + 100 Gy and 50 + 60 Gy separated by 1-, 2- and 3-day intervals or 55 + 55 Gy separated by 4-, 8-, and 24-hour intervals. All treatments induced more than 90% sterility in females mated with irradiated males, as compared with untreated males. No significant differences were found in emergence rate or flight propensity between fractionated and single radiation doses, nor between the types of fractionations. Overall, the 50(D0) + 60(D1) Gy dose showed slightly higher induced sterility, flight propensity, and survival of males under feeding regime. Dose fractionation resulted in only small improvements with respect to flight propensity and survival, and this should be traded off with the required increase in labor that dose fractionation entails, especially in larger control programs.","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10854482/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139707510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Untangling the Derogenes varicus species complex in Scandinavian waters and the Arctic: description of Derogenes abba n. sp. (Trematoda, Derogenidae) from Hippoglossoides platessoides and new host records for D. varicus (Müller, 1784) sensu stricto. 在斯堪的纳维亚水域和北极地区解开 Derogenes varicus 的物种复合体：描述来自 Hippoglossoides platessoides 的 Derogenes abba n. sp.（吸虫纲，Derogenidae）和 D. varicus (Müller, 1784) sensu stricto 的新宿主记录。

IF 2.9 2区医学

Parasite Pub Date : 2024-01-01 Epub Date: 2024-05-22 DOI: 10.1051/parasite/2024024

Chahinez Bouguerche, Daniel C Huston, Egil Karlsbakk, Mohammed Ahmed, Oleksandr Holovachov

{"title":"Untangling the Derogenes varicus species complex in Scandinavian waters and the Arctic: description of Derogenes abba n. sp. (Trematoda, Derogenidae) from Hippoglossoides platessoides and new host records for D. varicus (Müller, 1784) sensu stricto.","authors":"Chahinez Bouguerche, Daniel C Huston, Egil Karlsbakk, Mohammed Ahmed, Oleksandr Holovachov","doi":"10.1051/parasite/2024024","DOIUrl":"10.1051/parasite/2024024","url":null,"abstract":"Several studies have shown that the euryxenic trematode Derogenes varicus (Müller, 1784) represents a species complex. Four lineages have been designated (DV1-4) with the DV1 clade corresponding to D. varicus sensu stricto. Herein, we investigate newly collected specimens of D. varicus sensu lato from Scandinavian and Arctic waters using integrative taxonomy. The trematodes were collected from Melanogrammus aeglefinus, Eutrigla gurnardus, Trachinus draco, and Merluccius merluccius off the Atlantic coast of Sweden and from Hippoglossoides platessoides from Arctic Svalbard. 28S sequences of derogenids from Sweden were identical to D. varicus sensu stricto, confirming its euryxeny. The 28S sequences of Derogenes sp. from H. platessoides were identical to Derogenes DV2 and differed from D. varicus sensu stricto by 3% and from Derogenes DV3 by 2%. The 28S sequence divergences of Derogenes sp. from H. platessoides with D. ruber and D. lacustris were 3 and 10%, respectively. ITS2 and cox1 divergences between Derogenes sp. from H. platessoides and other Derogenes species/lineages were at levels of interspecific differences. The species from H. platessoides is described here as D. abba n. sp. We also examined the type material of Progonus muelleri (Levinsen, 1881), the type and only species of the genus Progonus, with redescription and designations of paralectotypes. Based on specimens from Theodor Odhner's collections at the Swedish Museum of Natural History, SMNH, Stockholm, we provide novel morphological and anatomical data for D. varicus sensu lato species complex. Lastly, we investigated Arthur Looss's \"lost collection\" of Trematodes at the SMNH and characterised a putative species Derogenes sp. \"limula\".","PeriodicalId":19796,"journal":{"name":"Parasite","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11110757/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141076604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0