Parasitology Research最新文献_第7页

The cyclophilin D (CypD) of Toxoplasma gondii is involved in the parasite's response to oxidative stress damage. 刚地弓形虫的亲环蛋白D （CypD）参与了寄生虫对氧化应激损伤的反应。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-12-04 DOI: 10.1007/s00436-024-08412-w

Zhu Ying, Yihan Wu, Zhepeng Sun, Jing Liu, Qun Liu

引用次数: 0

Helminth parasites of the invasive European brown hare (Lepus europaeus) in Brazil: the first report of Bunostomum trigonocephalum in a hare. 巴西入侵欧洲褐兔（Lepus europaeus）的寄生虫：野兔中三角头布诺stomum trigonocephalum的首次报道。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-12-03 DOI: 10.1007/s00436-024-08424-6

Carmen Arias-Pacheco, Patricia Parreira Perin, Wilson Junior Oliveira, Andressa de Souza Pollo, Danise Benatti, Talita Oliveira Mendonça, Lívia de Oliveira Andrade, Jonathan Silvestre Gomes, Natália de Oliveira Zolla, Adrian Felipe de Moraes Ferreira, Vitória Maximiana Soares Dos Santos, Estevam G Lux Hoppe

{"title":"Helminth parasites of the invasive European brown hare (Lepus europaeus) in Brazil: the first report of Bunostomum trigonocephalum in a hare.","authors":"Carmen Arias-Pacheco, Patricia Parreira Perin, Wilson Junior Oliveira, Andressa de Souza Pollo, Danise Benatti, Talita Oliveira Mendonça, Lívia de Oliveira Andrade, Jonathan Silvestre Gomes, Natália de Oliveira Zolla, Adrian Felipe de Moraes Ferreira, Vitória Maximiana Soares Dos Santos, Estevam G Lux Hoppe","doi":"10.1007/s00436-024-08424-6","DOIUrl":"10.1007/s00436-024-08424-6","url":null,"abstract":"Invasive alien species have the potential to introduce pathogens of economic and health importance in new environments. In Brazil, parasites from the non-native European brown hare can be a threat to humans, domestic animals, and wildlife. Therefore, we aimed to describe the helminth fauna of the invasive European brown hare in three Brazilian states (São Paulo, Paraná, and Rio Grande do Sul). For this, 90 brown hares were collected and examined for helminths. Helminth specimens recovered were morphologically identified and genetically characterized based on the DNA of male specimens using three genetic regions (28S rDNA, ITS-2, and cox-1 mtDNA). Descriptors of infection were calculated, and statistical analysis was performed. Parasites were found only in the small intestine of 14.4% (13/90) of brown hares and low parasite loads per animal were recorded (range = 1-530). The obtained specimens were morphologically identified as Trichostrongylus colubriformis and Bunostomum trigonocephalum. There was a high level of agreement between phylogenetic analysis and morphology for T. colubriformis. The geographical region was the only significant factor for infection; the State of Rio Grande do Sul had a higher general prevalence, higher T. colubriformis specific prevalence, and higher mean abundance than the other states evaluated. All hares were in a good body condition. To our knowledge, this is a new host record for B. trigonocephalum. This is the first study on the helminthological diversity of European brown hares in Brazil, and our results indicate that their helminth fauna is represented by parasites of domestic ruminants with zoonotic potential.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 12","pages":"403"},"PeriodicalIF":1.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential anti-schistosomal effect of Daflon, a repurposed drug targeting different stages of Schistosome maturity. 一种针对血吸虫成熟不同阶段的改型药物达芙蓉的潜在抗血吸虫作用。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-30 DOI: 10.1007/s00436-024-08418-4

Nahla El Skhawy, Hala E Diab, Sarah Ahmed Hassan, Aceel Y Hassan

{"title":"Potential anti-schistosomal effect of Daflon, a repurposed drug targeting different stages of Schistosome maturity.","authors":"Nahla El Skhawy, Hala E Diab, Sarah Ahmed Hassan, Aceel Y Hassan","doi":"10.1007/s00436-024-08418-4","DOIUrl":"https://doi.org/10.1007/s00436-024-08418-4","url":null,"abstract":"Despite the long history of experimental trials to combat schistosomiasis, it remains a significant burden due to drug resistance and the effectiveness of the standard treatment only against the mature stage, while skipping other early developmental stages thus leading to severe permanent pathological sequelae. Therefore, repurposing a commonly used well-known safe drug would be a wise alternative. We investigated the potential anti-schistosomal drug activity of Daflon® (DAF) against different schistosomal developmental stages. DAF was administrated at a dose of 100 mg/kg/mouse on days zero, 21, and 42 post-infection towards the invasive, immature, and mature stages of Schistosoma mansoni respectively in comparison to the standard anti-schistosomal drug (Praziquantel). All mice were sacrificed on day 49 post-infection. DAF induced a significant reduction in the total and female worm count, hepatic granuloma size, and number, the extent of liver parenchymal injury and fibrosis as well as intestinal and hepatic egg count compared to the infected untreated control. Liver malondialdehyde (MDA) levels significantly decreased in all DAF-treated groups. Scanning electron microscope findings revealed edema, tegumental blebs, cracks, and fissures in male tegument in all DAF-treated groups with distortion of the ventral suckers and disarrangement of the spines of the oral sucker. The female worm from DAF-treated groups showed tegumental edema with loss of the spines at the posterior end. Compared to the documented reduction of testosterone levels and distortion of testicular architecture in the S. mansoni-infected untreated group, DAF significantly restored testosterone levels and testicular architecture.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 12","pages":"402"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amoebicidal and cysticidal in vitro activity of cationic dendritic molecules against Acanthamoeba polyphaga and Acanthamoeba griffini. 阳离子树突分子对多食棘阿米巴和griffini棘阿米巴的体外杀阿米巴和囊泡活性研究。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-30 DOI: 10.1007/s00436-024-08413-9

Cristina Verdú-Expósito, Tania Martín-Pérez, Jorge Pérez-Serrano, Javier Sanchez-Nieves, Francisco Javier de la Mata, Irene Heredero-Bermejo

{"title":"Amoebicidal and cysticidal in vitro activity of cationic dendritic molecules against Acanthamoeba polyphaga and Acanthamoeba griffini.","authors":"Cristina Verdú-Expósito, Tania Martín-Pérez, Jorge Pérez-Serrano, Javier Sanchez-Nieves, Francisco Javier de la Mata, Irene Heredero-Bermejo","doi":"10.1007/s00436-024-08413-9","DOIUrl":"10.1007/s00436-024-08413-9","url":null,"abstract":"Acanthamoeba species are responsible for serious human infections, including Acanthamoeba keratitis (AK) and granulomatous amoebic encephalitis (GAE). These pathogens have a simple life cycle consisting of an infective trophozoite stage and a resistant cyst stage, with cysts posing significant treatment challenges due to their resilience against harsh conditions and chemical agents. Current treatments for AK often involve combining diamines, such as propamidine, and biguanides, such as chlorhexidine (CLX), which exhibit limited efficacy and significant toxicity. Thus, the effect of new therapeutic molecules, such as multifunctional systems (e.g., carbosilane dendritic molecules), should be studied as potential alternatives due to their biocidal properties and lower toxicity. This study evaluates various dendritic compounds against trophozoites and cysts of two Acanthamoeba clinical isolates, both alone and in combination with CLX, and assesses their cytotoxicity on HeLa cells. The results indicated that certain dendritic compounds, especially BDSQ024, were effective against both trophozoites and cysts. Additionally, combinations of dendritic molecules and CLX showed enhanced efficacy in eliminating trophozoites and cysts, suggesting potential for synergistic treatments. The study underscores the promise of dendritic molecules in developing more effective and less toxic therapies for Acanthamoeba infections.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 12","pages":"401"},"PeriodicalIF":1.8,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Red deer (Cervus elaphus) antler myiasis caused by Prochyliza nigrimanus (Meigen 1826). 马鹿（Cervus elaphus）鹿角蝇病是由Prochyliza nigrimanus引起的（Meigen 1826）。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-29 DOI: 10.1007/s00436-024-08421-9

Nikolina Škvorc, Miljenko Bujanić, Krešimir Severin, Lucija Šerić Jelaska, Magdalena Palić, Andrea Gudan Kurilj, Snježana Kužir, Dean Konjević

{"title":"Red deer (Cervus elaphus) antler myiasis caused by Prochyliza nigrimanus (Meigen 1826).","authors":"Nikolina Škvorc, Miljenko Bujanić, Krešimir Severin, Lucija Šerić Jelaska, Magdalena Palić, Andrea Gudan Kurilj, Snježana Kužir, Dean Konjević","doi":"10.1007/s00436-024-08421-9","DOIUrl":"https://doi.org/10.1007/s00436-024-08421-9","url":null,"abstract":"Antlers are bony structures that undergo regular annual growth, mineralisation and casting phases, representing only mammalian organs capable of full regeneration. Myiasis is infestation of live vertebrates with dipterous larvae. We sampled mineralised antlers from a red deer spiker stag 2 months after velvet shedding, divided it into three segments and fixed in 10% neutral buffered formalin. After demineralisation, samples were embedded in paraffin and sliced to a thickness of 6 µm. Tissue sections were stained with hematoxylin-eosin (HE), a modified staining to show the ossification process, toluidin blue and Masson's trichrome staining. Smears of liquid content from the antlers were made and stained with May-Grünwald Giemsa. Larvae were separated from segments and preserved in 70% ethanol for identification. Macroscopically, some parts of the antler tips were lacking the compact part. Microscopically, within the Haversian and Volkmann canals, a large number of bacteria, scarce protein content and remnants of red blood corpuscles were visible. In the area of cancellous bone, cross-sectioned larvae were present. A large quantity of bacteria and a few degraded red blood corpuscles were visible on the smear made of liquid from the antlers. For morphological identification, three larvae were examined: two were third-instar larvae (L3), while one was a first instar larva (L1). Based on the shape of the cephaloskeleton, L3 was identified as Prochyliza nigrimanus and confirmed using molecular tools. To the extent of the authors' knowledge, this is the first record of Prochyliza nigrimanus in non-casted hard red deer antlers and the first description of this species in Croatia.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 12","pages":"400"},"PeriodicalIF":1.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recessivity of deltamethrin resistance, kdr mutations, and detoxifying enzymes in hybrids of Triatoma phyllosoma subcomplex from Mexico. 墨西哥 Triatoma phyllosoma 亚复合体杂交种中溴氰菊酯抗性、kdr 突变和解毒酶的递归性。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-28 DOI: 10.1007/s00436-024-08396-7

Jesus A Davila-Barboza, Selene M Gutierrez-Rodriguez, Beatriz Lopez-Monroy, Ildefonso Fernandez-Salas, Iram P Rodriguez-Sanchez, Alejandro Villegas-Trejo, Adriana E Flores

{"title":"Recessivity of deltamethrin resistance, kdr mutations, and detoxifying enzymes in hybrids of Triatoma phyllosoma subcomplex from Mexico.","authors":"Jesus A Davila-Barboza, Selene M Gutierrez-Rodriguez, Beatriz Lopez-Monroy, Ildefonso Fernandez-Salas, Iram P Rodriguez-Sanchez, Alejandro Villegas-Trejo, Adriana E Flores","doi":"10.1007/s00436-024-08396-7","DOIUrl":"10.1007/s00436-024-08396-7","url":null,"abstract":"Triatoma species from the phyllosoma subcomplex are sympatrically distributed and include some of the main vectors of Chagas disease in Mexico. Species within this subcomplex, including Triatoma pallidipennis, T. mazzottii, T. picturata, and T. longipennis, have shown resistance to pyrethroid insecticides, associated with mutations in the para gene of the voltage gate sodium channel (VGSC) and the activity of detoxifying enzymes such as β-esterases and glutathione s-transferases (GST). In this study, we evaluated resistance to deltamethrin in hybrids of T. pallidipennis × T. mazzottii (T.pal × T.maz) and T. pallidipennis × T. picturata (T.pal × T.pic) under laboratory conditions, and the inheritance was determined based on the degree of dominance (DO). Additionally, associated resistance mechanisms were analyzed, including detoxifying enzymes and knockdown resistance (kdr) mutations. High levels of resistance to deltamethrin were found in the hybrids of T.pal × T.maz when compared with the susceptible strain of T. mazzottii (RR50 = 17.50). Dominance levels calculated for each hybrid showed values < - 1, confirming that resistance to deltamethrin was recessive. Hybrids exhibited reduced α-, β-esterases, and cytochrome P450 mixed-function oxidases (MFO) activity. However, both hybrids showed significantly increased GST activity, particularly in T.pal × T.pic, suggesting enhanced detoxification through this pathway. The kdr mutation A943V, present in T. mazzottii, was found in T.pal × T.maz hybrids. These results emphasize the importance of considering hybridization in resistance management programs and its potential impact on the success of insecticide-based control measures.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 11","pages":"399"},"PeriodicalIF":1.8,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142740138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immunomodulatory role of Trichinella spiralis-derived antigen on imiquimod-induced psoriasis in mice model. 螺旋毛霉衍生抗原对咪喹莫特诱导的小鼠银屑病模型的免疫调节作用

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-27 DOI: 10.1007/s00436-024-08415-7

Nahla El Skhawy, Maha M Eissa, Maram Allam, Eman M Eleryan

{"title":"Immunomodulatory role of Trichinella spiralis-derived antigen on imiquimod-induced psoriasis in mice model.","authors":"Nahla El Skhawy, Maha M Eissa, Maram Allam, Eman M Eleryan","doi":"10.1007/s00436-024-08415-7","DOIUrl":"10.1007/s00436-024-08415-7","url":null,"abstract":"The immunomodulatory activity of parasites has been extensively investigated in multiple immune-related diseases. However, dermatological diseases have been off the list for a long time despite their vast incidence and the deleterious consequences of some of them. This study explored the immunomodulatory role of autoclaved Trichinella spiralis (T. spiralis) larvae antigen (ATSLA) as a psoriasis immunotherapeutic candidate in a mice model. Psoriasis was induced in Swiss albino mice using commercial imiquimod cream (IMQ). Mice were randomly divided into the IMQ untreated control group and the IMQ treated group that was treated with ATSLA twice, on day 0 and day 3. Additional mice served as normal controls. Assessment of skin thickness, erythema, and scales was recorded. Total skin scores were calculated. Skin MDA levels, splenic indices, serum and skin IL-23, and tumor necrosis factor alpha (TNF-α) were measured. Skin sections were stained with H&E and immune stained for CD68-positive cells using immunohistochemistry. Treatment with ATSLA significantly reduced skin thickness, erythema, scales, and total skin scores in the IMQ-treated group compared to the untreated control. This was accompanied by a reduction in the splenic index, skin MDA levels, IL-23, and TNF-α in both the skin and serum of the treated group. Pathologically, skin sections of the treated group showed less epidermal thickness, acanthosis, hyperkeratosis, and CD68 cell count. The study concluded the immunotherapeutic activity of ATSLA in experimental psoriatic skin lesions. This will enrich the psoriasis immunotherapeutic list with novel candidates of parasitic origin.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 11","pages":"397"},"PeriodicalIF":1.8,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142731808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification and Immunological Characterization of Annexin B8 and Annexin E1 from Spirometra Erinaceieuropaei Spargana. 螺旋藻中的 Annexin B8 和 Annexin E1 的鉴定和免疫学特征。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-27 DOI: 10.1007/s00436-024-08407-7

Ruijia Fu, Yanquan Xu, Gang Lu, Fan Zhang, Pei Liang, Dayong Wang

{"title":"Identification and Immunological Characterization of Annexin B8 and Annexin E1 from Spirometra Erinaceieuropaei Spargana.","authors":"Ruijia Fu, Yanquan Xu, Gang Lu, Fan Zhang, Pei Liang, Dayong Wang","doi":"10.1007/s00436-024-08407-7","DOIUrl":"10.1007/s00436-024-08407-7","url":null,"abstract":"Sparganosis is a parasitic zoonotic disease that poses a serious threat to public hygiene and human health. Annexin is a phospholipid-binding protein with calcium ion binding activity, serving various important functions, including interaction with the parasite and regulation of the host's immune response. In this study, two annexin (ANX) family genes, Spirometra erinaceieuropaei (S. erinaceieuropaei) Annexin B8 (SeANXB8) and E1 (SeANXE1), isolated from spargana, were cloned and immunologically characterized. Both recombinant S. erinaceieuropaei Annexin B8 (rSeANXB8) and E1 (rSeANXE1) were specifically recognized by serum from rats immunized with the recombinant proteins, displaying strong immunoreactivity. They are also among the major components of sparganum excretion/secretion products (ESPs). SeANXE1 was identified in the parasite's tegument, testis, genital pore, ovary, and eggs, while SeANXB8 was found in the parasite's tegument and eggs. Plasminogen (PLG)-binding assays revealed that the two annexins could bind to human PLG in a concentration-dependent manner, which was blocked by the corresponding antibodies. These findings suggest that SeANXB8 and SeANXE1 may be involved in host-parasite interaction and may influence the host's immune response during sparganosis. They could be potential diagnosis and vaccination targets for sparganosis.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 11","pages":"398"},"PeriodicalIF":1.8,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142731807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Yellow grub diseases on two seasonal killifish (Cyprinodontiformes, Rivulidae): a histopathological study. 两种季节性鳉鱼（鲤形目，鳉科）的黄蛴螬病：组织病理学研究。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-26 DOI: 10.1007/s00436-024-08420-w

L Di Cesare, M M Montes, M S Vargas, C G Barbeito, S E Plaul

{"title":"Yellow grub diseases on two seasonal killifish (Cyprinodontiformes, Rivulidae): a histopathological study.","authors":"L Di Cesare, M M Montes, M S Vargas, C G Barbeito, S E Plaul","doi":"10.1007/s00436-024-08420-w","DOIUrl":"10.1007/s00436-024-08420-w","url":null,"abstract":"Yellow grub disease is a parasite infection, caused by Clinostomum spp. Metacercariae and affecting axial muscles and internal organs of freshwater fish. Killifishes live in seasonal ponds and are short-lived; in the Neotropical region they are among the most vulnerable vertebrates. The current study analyzes the possible injury and inflammatory reaction caused by parasitic infection with Clinostomum spp. metacercariae in testes, ovaries, liver, intestine and mesentery in the seasonal killifishes Trigonectes aplocheiloides and Titanolebias monstrosus. Apparently, this parasite could migrate through the circulatory system to different organs, since a cercaria was found in the lumen of a hepatic sinusoid. In all organs the inflammatory response showed dilated, congested vascular areas and infiltration of numerous inflammatory cells, mainly composed of lymphocytes, eosinophilic granular cells and macrophages. However, the most affected organs were the pancreas, ovaries and testes. In these organs, severe pancreatitis with degranulation of the pancreatic acini, scarce ovarian follicles and spermatocysts dilated with few or no seminiferous cells were observed. In seasonal killifish, yellow grub disease could cause low fertility rates or even sterility by reducing or impairing their reproductive capacity. Therefore, this type of parasitism has a considerable impact on the perpetuation of this species due to the short periods they have to breed before their habitats dry out.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 11","pages":"395"},"PeriodicalIF":1.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parasite traits, host traits, and environment as determinants of dark diversity affinity in flea and gamasid mite assemblages from the Palearctic. 寄生虫性状、宿主性状和环境是古北区跳蚤和伽马螨群暗色多样性亲缘关系的决定因素。

IF 1.8 3区医学

Parasitology Research Pub Date : 2024-11-26 DOI: 10.1007/s00436-024-08408-6

Boris R Krasnov, Maxim V Vinarski, Natalia P Korallo-Vinarskaya, Irina S Khokhlova, Vasily I Grabovsky

{"title":"Parasite traits, host traits, and environment as determinants of dark diversity affinity in flea and gamasid mite assemblages from the Palearctic.","authors":"Boris R Krasnov, Maxim V Vinarski, Natalia P Korallo-Vinarskaya, Irina S Khokhlova, Vasily I Grabovsky","doi":"10.1007/s00436-024-08408-6","DOIUrl":"10.1007/s00436-024-08408-6","url":null,"abstract":"A species set in a site comprises species that are present (realized diversity) and species that could inhabit this site but are absent (dark diversity; DD). DD can be both species-driven (a species' traits preclude its presence, independently of site features) and site-driven (site features preclude the species' presence, independently of its traits). DD affinity (DDA) is a measure of species' tendencies to be absent from sites that they could inhabit or of sites' tendencies to lack species that could be present. Decomposition of DDA into DDA for species (ddasp) and for sites (ddasite) allows (a) disentangling these two mechanisms and (b) detecting species traits and site features contributing to their DDA. The species-site unified model is a Bayesian statistical model aimed at simultaneously estimating ddasp and ddasite. We applied it to flea and mite assemblages (a) within a host species across regions (component metacommunities; CtM; ddasite = ddaregion) and (b) within a region across host species (compound metacommunities; CdM, ddasite = ddahost). In CtMs, ddasp and ddaregion equally contributed to DD, whereas the relative contributions of ddasp and ddahost to DD in CdMs varied from the former being higher than the latter and vice versa. In CtM and CdM, ddasp increased in low-abundance ectoparasites exploiting a restricted number of hosts. In CtMs, ddaregion was associated with the regional environment, but we failed to find host traits affecting ddahost in CdMs. We conclude that ectoparasite species and either regions in CtMs or host species in CdMs independently contribute to DD.","PeriodicalId":19968,"journal":{"name":"Parasitology Research","volume":"123 11","pages":"396"},"PeriodicalIF":1.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11599333/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716764","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