Parasitology最新文献

筛选
英文 中文
The first mitogenome of the genus Amphalius (Siphonaptera: Ceratophyllidae) and its phylogenetic implications. 双翅虫属的第一个有丝分裂基因组及其系统发育意义。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-12-03 DOI: 10.1017/S0031182024000635
Ju Pu, Xiaoxia Lin, Wenge Dong
{"title":"The first mitogenome of the genus <i>Amphalius</i> (Siphonaptera: Ceratophyllidae) and its phylogenetic implications.","authors":"Ju Pu, Xiaoxia Lin, Wenge Dong","doi":"10.1017/S0031182024000635","DOIUrl":"10.1017/S0031182024000635","url":null,"abstract":"<p><p><i>Amphalius spirataenius</i> belongs to Arthropoda, Insecta, Siphonaptera, Ceratophylloidea, Ceratophyllinae, <i>Amphalius</i>. Only 2 species from the subfamily Ceratophyllinae have been sequenced for mitogenomes to date. The genus <i>Amphalius</i> mitogenome research was still blank. The <i>A. spirataenius</i> mitogenome was determined, annotated and analysed for the first time in this study. The 14 825 bp long genome has the typical metazoan of 37 genes with insect ancestral genome arrangement pattern. There was no significant difference in codon usage of 13 protein-coding genes: UUA, UCU, GUU, ACU and GCU were the most frequently used codons. It was found that the reason for codon preference mainly contributed to natural selection base on PR2, ENC-plot and neutrality curve analysis. Evolutionary rate, conserved sites, variable sites and nucleotide diversity analysis indicated that <i>nad6</i> of <i>A. spirataenius</i> had the fastest evolutionary rate, while <i>cox1</i> had the slowest evolutionary rate. Phylogenetic trees were reconstructed based on 13 protein-coding genes and 2 rRNA genes datasets using Bayesian inference and maximum likelihood method. The phylogenetic tree supported that both Siphonaptera and Mecoptera were monophyletic, and were sister groups to each other. This study filled gap of the genus <i>Amphalius</i> mitogenome sequences and was of great significance for understanding evolution of the order Siphonaptera.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1085-1095"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A first record of a suspected intestinal myiasis caused by Muscina stabulans (Fallén 1817) (Diptera: Muscidae) in Southern South America. 在南美洲南部首次记录到由 Muscina stabulans (Fallén 1817) (双翅目:鹟科)引起的疑似肠肌炎。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-10-23 DOI: 10.1017/S0031182024001094
Fernando H Aballay, Marta I Saloña-Bordas, M Alejandra Perotti
{"title":"A first record of a suspected intestinal myiasis caused by <i>Muscina stabulans</i> (Fallén 1817) (Diptera: Muscidae) in Southern South America.","authors":"Fernando H Aballay, Marta I Saloña-Bordas, M Alejandra Perotti","doi":"10.1017/S0031182024001094","DOIUrl":"10.1017/S0031182024001094","url":null,"abstract":"<p><p>We report a case of a suspected intestinal myiasis of a child from Southeast Argentina. Diptera larvae were sampled by a physician from the nappy worn by the child and submitted for examination and identification to the Laboratorio de Artrópodos (Universidad Nacional de Mar del Plata). Based on diagnosis of the anterior and posterior spiracles and mouthparts, the larvae were identified as the false stable fly <i>Muscina stabulans</i> (Fallén, 1817) (Diptera: Muscidae). A comparison of diagnostic characters between Argentinean and European third instars of this species is presented. <i>Muscina stabulans</i> is a prevalent species in the district of General Pueyrredón, Buenos Aires province, where the case occurred. Its abundance in the area coincidentally peaked at the time of the infestation. This is the 1st report of <i>M. stabulans</i> as a suspect of intestinal myiasis for the whole of the southern cone of South America (Chile and Argentina).</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1277-1280"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893995/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A new blood parasite of the accentor birds: description, molecular characterization, phylogenetic relationships and distribution. 一种新的鸟类血液寄生虫:描述、分子特征、系统发育关系和分布。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-15 DOI: 10.1017/S0031182024000878
Gediminas Valkiūnas, Tatjana A Iezhova, Mélanie Duc, Jenny C Dunn, Staffan Bensch
{"title":"A new blood parasite of the accentor birds: description, molecular characterization, phylogenetic relationships and distribution.","authors":"Gediminas Valkiūnas, Tatjana A Iezhova, Mélanie Duc, Jenny C Dunn, Staffan Bensch","doi":"10.1017/S0031182024000878","DOIUrl":"10.1017/S0031182024000878","url":null,"abstract":"<p><p><i>Haemoproteus bobricklefsi</i> sp. nov. (Haemosporida, Haemoproteidae) was found in the dunnock <i>Prunella modularis</i> and represents the first blood parasite described in accentor birds of the Prunellidae. The description is based on the morphology of blood stages and includes information about a barcoding segment of the mitochondrial cytochrome <i>b</i> gene (lineage hDUNNO01) and the full mitochondrial genome, which can be used for identification and diagnosis of this infection. The new parasite can be readily distinguished from described species of haemoproteids parasitizing passeriform birds due to markedly variable position of nuclei in advanced and fully grown macrogametocytes. Illustrations of blood stages of the new species are given, and phylogenetic analyses based on partial mitochondrial cytochrome <i>b</i> gene sequences and the full mitochondrial genome identified the closely related lineages. DNA haplotype networks showed that transmission occurs in Europe and North America. This parasite was found in the dunnock in Europe and several species of the Passerellidae in North America. It is probably of Holarctic distribution, with the highest reported prevalence in the UK. The parasite distribution seems to be geographically patchy, with preference for areas of relatively cool climates. Phylogenetic analysis suggests that <i>H. bobricklefsi</i> sp. nov. belongs to the <i>Parahaemoproteus</i> subgenus and is probably transmitted by biting midges belonging to <i>Culicoides</i> (Ceratopogonidae). The available data on molecular occurrence indicate that this pathogen is prone to abortive development, so worth attention in regard of consequences for bird health.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1163-1173"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Unravelling the diversity of Posthodiplostomum Dubois, 1936 (Trematoda: Diplostomidae) in fish-eating birds from the Neotropical region of Mexico, with the description of a new species. 揭示墨西哥新热带地区食鱼鸟类中 Posthodiplostomum Dubois, 1936 (Trematoda: Diplostomidae) 的多样性,并描述一个新物种。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-11 DOI: 10.1017/S0031182024000970
Marcelo Tonatiuh González-García, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares, Ana Lucia Sereno-Uribe, Gerardo Pérez-Ponce de León, Martín García-Varela
{"title":"Unravelling the diversity of <i>Posthodiplostomum</i> Dubois, 1936 (Trematoda: Diplostomidae) in fish-eating birds from the Neotropical region of Mexico, with the description of a new species.","authors":"Marcelo Tonatiuh González-García, Alejandra López-Jiménez, Mirza Patricia Ortega-Olivares, Ana Lucia Sereno-Uribe, Gerardo Pérez-Ponce de León, Martín García-Varela","doi":"10.1017/S0031182024000970","DOIUrl":"10.1017/S0031182024000970","url":null,"abstract":"<p><p>Adults of the genus <i>Posthodiplostomum</i>, Dubois, 1936 are parasites of fish-eating birds, mainly of the family Ardeidae, and are globally distributed. The genus currently comprises 35 species, although recent molecular evidence has shown that the diversity of the genus is underestimated since several candidate species have been recognized. In the Neotropical region of Mexico, at least 6 <i>Posthodiplostomum</i> lineages have been detected with metacercaria stages recovered from unrelated fish hosts. Here, we obtained adult specimens of <i>Posthodiplostomum</i> from 6 fish-eating birds representing 2 families (<i>Butorides virescens</i>, <i>Ardea herodias</i>, <i>Nycticorax nycticorax</i>, <i>Tigrisoma mexicanum</i> – Ardeidae, and <i>Rynchops niger</i> and <i>Leucophaeus atricilla</i> – Lariidae) from 4 localities in southern Mexico. Specimens were sequenced for 2 nuclear (28S and ITS1–5.8S–ITS2) and 1 mitochondrial (<i>cox1</i>) molecular marker. Phylogenetic analyses allowed us to link metacercariae and adult specimens and recognized a lineage, which was described morphologically. The new species can be distinguished from its congeners by its prosoma morphology and body size; this is the first described species in the Neotropical region of Mexico. Additionally, new host and locality records for <i>P. macrocotyle</i> and <i>P. pricei</i> are presented, expanding their geographical distribution range in the Americas.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1225-1241"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894011/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Complete mitochondrial genome of Scathophaga stercoraria (Diptera: Scathophagidae) in wild plateau pika: Genome descriptions and Phylogenetic evolution - CORRIGENDUM. 野生高原鼠兔 Scathophaga stercoraria(双翅目:Scathophagidae)的完整线粒体基因组:Genome descriptions and Phylogenetic evolution - CORRIGENDUM.
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-21 DOI: 10.1017/S003118202400115X
Haining Zhang, Wangkai Chen, Ru Meng, Hong Duo, Xueyong Zhang, Zhihong Guo, Xiuying Shen, Qing Liu, Zhi Li, Yong Fu
{"title":"Complete mitochondrial genome of <i>Scathophaga stercoraria</i> (Diptera: Scathophagidae) in wild plateau pika: Genome descriptions and Phylogenetic evolution - CORRIGENDUM.","authors":"Haining Zhang, Wangkai Chen, Ru Meng, Hong Duo, Xueyong Zhang, Zhihong Guo, Xiuying Shen, Qing Liu, Zhi Li, Yong Fu","doi":"10.1017/S003118202400115X","DOIUrl":"10.1017/S003118202400115X","url":null,"abstract":"","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1174"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11893994/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Analyses of the essential C82 subunit uncovered some differences in RNA polymerase III transcription between Trypanosoma brucei and Leishmania major. 对重要的 C82 亚基的分析发现,布氏锥虫和大利什曼原虫的 RNA 聚合酶 III 转录存在一些差异。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-11 DOI: 10.1017/S0031182024000921
Andrés Cano-Santiago, Luis E Florencio-Martínez, Daniel E Vélez-Ramírez, Adrián J Romero-Chaveste, Rebeca G Manning-Cela, Tomás Nepomuceno-Mejía, Santiago Martínez-Calvillo
{"title":"Analyses of the essential C82 subunit uncovered some differences in RNA polymerase III transcription between <i>Trypanosoma brucei</i> and <i>Leishmania major</i>.","authors":"Andrés Cano-Santiago, Luis E Florencio-Martínez, Daniel E Vélez-Ramírez, Adrián J Romero-Chaveste, Rebeca G Manning-Cela, Tomás Nepomuceno-Mejía, Santiago Martínez-Calvillo","doi":"10.1017/S0031182024000921","DOIUrl":"10.1017/S0031182024000921","url":null,"abstract":"<p><p>The 17-subunit RNA polymerase III (RNAP III) synthesizes essential untranslated RNAs such as tRNAs and 5S rRNA. In yeast and vertebrates, subunit C82 forms a stable subcomplex with C34 and C31 that is necessary for promoter-specific transcription initiation. Little is known about RNAP III transcription in trypanosomatid parasites. To narrow this knowledge gap, we characterized the C82 subunit in <i>Trypanosoma brucei</i> and <i>Leishmania major</i>. Bioinformatic analyses showed that the 4 distinctive extended winged-helix (eWH) domains and the coiled-coil motif are present in C82 in these microorganisms. Nevertheless, C82 in trypanosomatids presents certain unique traits, including an exclusive loop within the eWH1 domain. We found that C82 localizes to the nucleus and binds to RNAP III-dependent genes in the insect stages of both parasites. Knock-down of C82 by RNA interference significantly reduced the levels of tRNAs and 5S rRNA and led to the death of procyclic forms of <i>T. brucei</i>. Tandem affinity purifications with both parasites allowed the identification of several C82-interacting partners, including C34 and some genus-specific putative regulators of transcription. However, the orthologue of C31 was not found in trypanosomatids. Interestingly, our data suggest a strong association of C82 with TFIIIC subunits in <i>T. brucei</i>, but not in <i>L. major</i>.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1185-1200"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Paleoparasitological analysis of a 15th-16th c. CE latrine from the merchant quarter of Bruges, Belgium: Evidence for local and exotic parasite infections. 比利时布鲁日商业区一座公元15 -16世纪厕所的古寄生虫学分析:当地和外来寄生虫感染的证据。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-12-06 DOI: 10.1017/S0031182024001100
Marissa L Ledger, Maxime Poulain, Koen Deforce
{"title":"Paleoparasitological analysis of a 15th-16th c. CE latrine from the merchant quarter of Bruges, Belgium: Evidence for local and exotic parasite infections.","authors":"Marissa L Ledger, Maxime Poulain, Koen Deforce","doi":"10.1017/S0031182024001100","DOIUrl":"10.1017/S0031182024001100","url":null,"abstract":"<p><p>Paleoparasitological studies have made important contributions to our understanding of the past epidemiology of parasites, infection in past populations and lifestyle in the past. In some cases, these ancient parasites can also provide evidence for long distance travel or migration of people in the past. Three sediment samples from a 15th–16th c. CE latrine from the Spanish nation house in Bruges, Belgium were analysed for preserved helminth eggs using microscopy. Bruges was a major trading centre in medieval Europe, thus it was home to a large merchant population with extensive trading networks. Paleoparasitological analysis revealed a preserved parasite egg from <i>Schistosoma mansoni</i>, which causes intestinal schistosomiasis. Roundworm, whipworm, liver fluke and <i>Taenia</i> tapeworm eggs were also found in the latrine which is consistent with parasites previously found in the local population in the medieval period. These new data provide direct evidence for the movement of <i>S. mansoni</i> outside of its endemic area. Today the vast majority of <i>S. mansoni</i> infections occur in Sub-Saharan Africa, with additional endemic areas in the Arabian peninsula and South America. The introduction of <i>S. mansoni</i> into South America is proposed to have occurred relatively recently in human history, as the result of forced movement of people from Africa to the Americas with the Atlantic slave trade. Thus, this infection may have occurred in a merchant who acquired the parasite during trade voyages to Africa or in an individual living in Africa who migrated to Bruges.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1281-1289"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894012/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142786432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Haemoparasite infection risk in multi-host avian system: an integrated analysis. 多宿主禽类系统中的血寄生虫感染风险:综合分析。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-20 DOI: 10.1017/S0031182024000994
Edyta Podmokła, Anna Dubiec, Bartosz Pluciński, Bartłomiej Zając, Lars Gustafsson
{"title":"Haemoparasite infection risk in multi-host avian system: an integrated analysis.","authors":"Edyta Podmokła, Anna Dubiec, Bartosz Pluciński, Bartłomiej Zając, Lars Gustafsson","doi":"10.1017/S0031182024000994","DOIUrl":"10.1017/S0031182024000994","url":null,"abstract":"<p><p>Avian blood parasites play a crucial role in wildlife health and ecosystem dynamics, exhibiting heterogeneous spatial distribution influenced by various factors. Although factors underlying heterogeneity in infection with blood parasites have been explored in many avian hosts, their importance in the context of host species and the parasite taxon remains poorly understood, particularly in cohabiting host species. Using next-generation sequencing for parasite screening, we investigate the association between <i>Haemoproteus</i>, <i>Plasmodium</i> and <i>Trypanosoma</i> infections in relation to individual parameters, host densities and landscape features in 3 cavity-nesting passerines: great tit (<i>Parus major</i>), blue tit (<i>Cyanistes caeruleus</i>) and collared flycatcher (<i>Ficedula albicollis</i>) in a highly fragmented forest habitat. Overall, <i>Haemoproteus</i> infections predominated, followed by <i>Plasmodium</i> and <i>Trypanosoma</i>, with great tits most and collared flycatchers least parasitized. There were no common patterns across host species in the probability of infection with locally transmitted parasites from each genus. Specifically, in all cases, the effect of particular parameters, if present, was observed only in 1 host species. Body condition influenced <i>Haemoproteus</i> and <i>Plasmodium</i> infections differently in tits. Host density, whether own species or all pooled, explained <i>Haemoproteus</i> infections in great tits and collared flycatchers, and <i>Plasmodium</i> in great tits. Landscape metrics, such as moisture index and distance to coast edge and pastures, affected infection probability in specific host–parasite combinations. Relative risk maps revealed infection risk gradients, but spatial variation repeatability over time was low. Our study highlights the complex dynamics of avian blood parasites in multi-host systems, shedding light on host–parasite interactions in natural ecosystems.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1242-1253"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894008/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
First record of Perkinsus beihaiensis in cultured mussels Mytilus coruscus in the East China Sea. 首次在中国东海的养殖贻贝中发现北海鲈。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-21 DOI: 10.1017/S0031182024000702
Jia Y Zhai, Peng Z Qi, Xiao A Yang, Zhong J Ren, Zi H Zhang, Jia X Gao, Deng H Zhu, Pei P Fu
{"title":"First record of <i>Perkinsus beihaiensis</i> in cultured mussels <i>Mytilus coruscus</i> in the East China Sea.","authors":"Jia Y Zhai, Peng Z Qi, Xiao A Yang, Zhong J Ren, Zi H Zhang, Jia X Gao, Deng H Zhu, Pei P Fu","doi":"10.1017/S0031182024000702","DOIUrl":"10.1017/S0031182024000702","url":null,"abstract":"<p><p>During the investigation of parasitic pathogens of <i>Mytilus coruscus</i>, infection of a <i>Perkinsus</i>-like protozoan parasite was detected by alternative Ray's Fluid Thioglycolate Medium (ARFTM). The diameter of hypnospores or prezoosporangia was 8–27 (15.6 ± 4.0, <i>n</i> = 111) μm. The prevalence of the <i>Perkinsus</i>-like species in <i>M. coruscus</i> was 25 and 12.5% using ARFTM and PCR, respectively. The ITS1-5.8S-ITS2 fragments amplified by PCR assay had 100% homology to that of <i>P. beihaiensis</i>, suggesting that the protozoan parasite was <i>P. beihaisensis</i> and <i>M. coruscus</i> was its new host in East China Sea (ECS). Histological analysis showed the presence of trophozoites of <i>P. beihaiensis</i> in gill, mantle and visceral mass, and the schizonts only found in visceral mass. <i>Perkinsus beihaiensis</i> infection led to inflammatory reaction of hemocyte and the destruction of digestive tubules in visceral mass, which had negative effect on health of the farmed <i>M. coruscus</i> and it deserves more attention.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1104-1107"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894007/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Henneguya patriciai n. sp. (Cnidaria: Myxosporea) parasitizing Leporinus friderici (Bloch 1794) from Tartarugalzinho river, eastern Amazon. Henneguya patriciai n. sp. (Cnidaria: Myxosporea) 寄生于亚马逊东部 Tartarugalzinho 河的 Leporinus friderici (Bloch 1794)。
IF 2.1 3区 医学
Parasitology Pub Date : 2024-09-01 Epub Date: 2024-11-11 DOI: 10.1017/S0031182024000684
Abthyllane Amaral de Carvalho, Lilia Suzane de Oliveira Nascimento, Luize Cristine Pantoja Dos Reis, Roger Leomar da Silva Ferreira, Saturo Cardoso Morais, Elane Guerreiro Geise, Marcela Nunes Videira, Edilson Rodrigues Matos
{"title":"<i>Henneguya patriciai</i> n. sp. (Cnidaria: Myxosporea) parasitizing <i>Leporinus friderici</i> (Bloch 1794) from Tartarugalzinho river, eastern Amazon.","authors":"Abthyllane Amaral de Carvalho, Lilia Suzane de Oliveira Nascimento, Luize Cristine Pantoja Dos Reis, Roger Leomar da Silva Ferreira, Saturo Cardoso Morais, Elane Guerreiro Geise, Marcela Nunes Videira, Edilson Rodrigues Matos","doi":"10.1017/S0031182024000684","DOIUrl":"10.1017/S0031182024000684","url":null,"abstract":"<p><p>The Amazon basin has the largest number of fish in the world, and among the most common fishes of the Neotropical region, the threespot (<i>Leporinus friderici</i>) is cited, which in relation to its microparasitic fauna, has described only 1 species of the genus <i>Henneguya</i>, <i>Henneguya friderici</i>. The Myxozoa class is considered an obligate parasite, being morphologically characterized by spores formed by valves connected by a suture line. This study describes a new species of <i>Henneguya</i> sp. in the Amazon region for <i>L. friderici</i>. This parasite was found in the host's pyloric caeca and caudal kidney, with mature spores with a total spore length of 38.4 ± 2.5 (35.9–40.9) <i>μ</i>m; the spore body 14.4 ± 1.1 (13.3–15.5) <i>μ</i>m and 7.3 ± 0.6 (6.7–7.9) <i>μ</i>m wide. Regarding its 2 polar capsules, they had a length of 5.1 ± 0.4 (4.7–5.5) <i>μ</i>m and a width of 2.0 ± 0.1 (1.9–2.1) <i>μ</i>m in the same pear-shaped, and each polar capsule contained 9–11 turns. Morphological and phylogenetic analyses denote that this is a new species of the genus <i>Henneguya</i>.</p>","PeriodicalId":19967,"journal":{"name":"Parasitology","volume":" ","pages":"1096-1103"},"PeriodicalIF":2.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11894024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信