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Montes MM, Croci Y, Barneche J, Ferrari W, Reig Cardarella G, Martorelli S. Description of Saccocoelioides miguelmontesi n. sp. (Digenea: Haploporidae) from characid fishes in the Iguazu River Basin based on morphological and molecular evidence. J Helminthol 2024; 98:e24. [PMID: 38477029 DOI: 10.1017/s0022149x24000117] [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] [Indexed: 03/14/2024]
Abstract
Here we describe a new species of the genus Saccocoelioides found parasitizing Astyanax dissimilis Garavello & Sampaio, Psalidodon bifasciatus (Garavello and Sampaio) and Bryconamericus ikaa Casciotta, Almirón & Azpelicueta from the Iguazu National Park, Misiones province, Argentina. Saccocoelioides miguelmontesi n. sp. was studied based on morphological and molecular (28S rDNA and COI mtDNA sequences) data. The COI mtDNA tree indicated that the specimens collected from the three fish hosts are conspecific, with an intragroup p-distance of 0%. The new species shows an intermediate morphological configuration between the diminutive and robust forms described for Saccocoelioides by Curran (2018). Although, in the 28S rDNA tree, it is placed in a well-supported clade with the two robust species analysed (S. elongatus and S. magnus; p-distance of 1 and 2%, respectively), it differs from the robust group by the range of body size, mature egg size, oral and ventral sucker size, sucker ratio, oral sucker to pharynx ratio, and post-cecal or post-testis/body length percentage. Our results led us to redefine the robust group as having eggs shorter or equal in length to the pharynx. Saccocoelioides miguelmontesi n. sp. the 10th species reported from Argentina and the 7th species within the robust group.
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Affiliation(s)
- M M Montes
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - Y Croci
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - J Barneche
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
| | - W Ferrari
- Instituto de Biotecnología Ambiental y Salud (INBIAS), Consejo Nacional de Investigaciones Científicas, Universidad Nacional de Rio Cuarto (CONICET-UNRC), Rio cuarto, Córdoba
| | - G Reig Cardarella
- Escuela de Tecnología Médica y Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O' Higgins, Santiago de Chile, Chile
| | - S Martorelli
- Centro de Estudios Parasitológicos y Vectores (CEPAVE), Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CCT, CONICET-UNLP), La Plata, Buenos Aires, Argentina
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Montes MM, Barneche J, Legunda N, Ferrari W, Aguilar-Aguilar R, Martorelli SR. Systematic assessment of nymphs of Diesingiinae (Pentastomida: Sebekidae) parasitizing Palloceros harpagos (Cyprinodontiformes: Poeciliidae) from Parque Nacional Iguazú, Argentina: filling gaps in an incomplete phylogenetic framework. AN ACAD BRAS CIENC 2023; 95:e20200668. [PMID: 37991102 DOI: 10.1590/0001-3765202320200668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 09/13/2020] [Indexed: 11/23/2023] Open
Abstract
During a search for parasites in fishes from Iguazu River, Argentina, a nymph of pentastomid was found encysted on mesenteries of Phalloceros harpagos. The 28S rDNA and COI mt-DNA were used to compare with the sequences deposited in the GenBank. Pentastomid nymphs belong to the subfamily Diesingiinae (Sebekidae) for having chloride cell pores distributed in a single row per annulus; also, the hooks and rows of spines of our material differ to other genera. Present specimens are most likely Diesingia sp., having 63-74 annuli, a U shaped oral cadre with fibers closing anteriorly and a peg like extension of the oral cadre. The 28S rDNA analysis places our samples into a sister group of Alofia sp., but the COI mt-DNA situate them on the base of the clade. In conclusion, our pentastomid positively belongs to Diesingia sp., however, indisputable assignation requires a reliable description of the nymph, or the availability of sequences linking nymphs and adults, which even could provide evidence of a new hitherto undescribed genus. Aditionally, the systematic position of Sebekia oxycephala previously described by P. harpagos is discussed on the basis of our results, allowing us to suggest a re-assignation of such specimens to the genus Diesingia.
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Affiliation(s)
- Martín Miguel Montes
- Centro de Estudios Parasitológicos y Vectores (CEPAVE-UNLP-CONICET-), Boulevard 120 s/n e/60 y 64, C.P. 1900, La Plata, Buenos Aires, Argentina
| | - Jorge Barneche
- Centro de Estudios Parasitológicos y Vectores (CEPAVE-UNLP-CONICET-), Boulevard 120 s/n e/60 y 64, C.P. 1900, La Plata, Buenos Aires, Argentina
| | - Nicolas Legunda
- Centro de Estudios Parasitológicos y Vectores (CEPAVE-UNLP-CONICET-), Boulevard 120 s/n e/60 y 64, C.P. 1900, La Plata, Buenos Aires, Argentina
| | - Walter Ferrari
- Centro de Estudios Parasitológicos y Vectores (CEPAVE-UNLP-CONICET-), Boulevard 120 s/n e/60 y 64, C.P. 1900, La Plata, Buenos Aires, Argentina
| | - Rogelio Aguilar-Aguilar
- Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Circuito Exterior s/n, C.P. 04510, Ciudad Universitaria, Mexico
| | - Sergio Roberto Martorelli
- Centro de Estudios Parasitológicos y Vectores (CEPAVE-UNLP-CONICET-), Boulevard 120 s/n e/60 y 64, C.P. 1900, La Plata, Buenos Aires, Argentina
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Montes MM, Barneche J, Pagano L, Ferrari W, Martorelli SR, de León GPP. Molecular data reveal hidden diversity of the genus Clinostomum (Digenea, Clinostomidae) in Argentina, with the description of a new species from Ardea cocoi (Ardeidae). Parasitol Res 2021; 120:2779-2791. [PMID: 34232388 DOI: 10.1007/s00436-021-07234-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 06/23/2021] [Indexed: 11/29/2022]
Abstract
The genus Clinostomum has been recently a subject of a large number of molecular phylogenetic studies that have uncovered a larger species diversity than we thought. In Argentina, only two nominal species have been reported, namely C. detruncatum and C. marginatum. Three putative species represented by metacercariae were recently molecularly diagnosed, and there are at least two additional metacercarial morphotypes diagnosed on morphological grounds. Here, we molecularly characterized specimens of Clinostomum sampled from freshwater fishes and fish-eating birds from Argentina through mtDNA cytochrome c oxidase subunit I (COI). Unexpectedly, the phylogenetic analysis uncovered three new additional genetic lineages, two of them corresponding to metacercarial stages and another matching COI sequences of C. heluans Braun, 1899, being considered conspecific, whereas the others still require formal description. Additionally, we add a new host species for a lineage molecularly diagnosed in a previous study. The adult specimens recovered from A. cocoi in Buenos Aires Province represented a new species clearly distinguished from the two species previously reported in Argentina. Clinostomum detruncatum is distinguished from the new species by possessing a characteristic tenoidean uterus, and testes located more posteriorly. Clinostomum marginatum is morphologically similar but differs from the new species in having rounded ovary, posterior testis lobated, and lateral cirrus-sac and displacing the anterior testis, and vitelline follicles not extending beyond the caeca end. Our study raises the number of Clinostomum species in Argentina up to 10. We describe the new species herein.
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Affiliation(s)
- Martin Miguel Montes
- Centro de Estudios Parasitológicos y Vectores, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata-Comision de Investigaciones Científicas, La Plata, Argentina.
| | - Jorge Barneche
- Centro de Estudios Parasitológicos y Vectores, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata-Comision de Investigaciones Científicas, La Plata, Argentina
| | - Luis Pagano
- División Ornitología, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, La Plata, Argentina
| | - Walter Ferrari
- Centro de Estudios Parasitológicos y Vectores, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata-Comision de Investigaciones Científicas, La Plata, Argentina
| | - Sergio Roberto Martorelli
- Centro de Estudios Parasitológicos y Vectores, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata-Comision de Investigaciones Científicas, La Plata, Argentina
| | - Gerardo Pérez-Ponce de León
- Escuela Nacional de Estudios Superiores Unidad Mérida (ENES-Mérida), Universidad Nacional Autónoma de México, Km. 4.5 carretera Mérida-Tétiz, 97357, Ucú Municipality, Yucatán, Mexico
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Gutierrez AC, Leclerque A, Manfrino RG, Luz C, Ferrari WAO, Barneche J, García JJ, López Lastra CC. Natural occurrence in Argentina of a new fungal pathogen of cockroaches, Metarhizium argentinense sp. nov. Fungal Biol 2019; 123:364-372. [PMID: 31053325 DOI: 10.1016/j.funbio.2019.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 10/18/2017] [Revised: 01/16/2019] [Accepted: 02/12/2019] [Indexed: 01/20/2023]
Abstract
The aim of this study was to search for entomopathogenic fungi that infect wild cockroaches in forest ecosystems in two protected natural areas of Argentina. Two isolates of Metarhizium argentinense were obtained and identified from wild cockroaches (Blaberidae: Epilamprinae) through the use of morphological characteristics and molecular phylogenetic analyses. This novel species was found in Argentina and is a member of the Metarhizium flavoviride species complex. Phylogenetic analyses, based on sequence similarity analysis using internal transcribed spacer (ITS) and a set of four protein-coding marker sequences (EF1A, RPB1, RPB2 and BTUB), supported the status of this fungus as a new species. In addition, we tested the biological activity of the new species through assays against Blattella germanica nymphs and found that the two evaluated isolates were pathogenic. However, isolate CEP424 was more virulent and caused a confirmed mortality of 76 % with a median lethal time of 7.2 d. This study reports the southernmost worldwide location of a Metarhizium species that infects cockroaches and will help expand the knowledge of the biodiversity of pathogenic fungi of Argentine cockroaches.
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Affiliation(s)
- Alejandra C Gutierrez
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina.
| | - Andreas Leclerque
- Institute for Microbiology and Biochemistry, Geisenheim University, Geisenheim, D-65366, Germany.
| | - Romina G Manfrino
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina.
| | - Christian Luz
- Instituto de Patologia Tropical e Saúde Pública (IPTSP), Universidade Federal de Goiás (UFG), Goiânia, 74605-050, Goiás, Brazil.
| | - Walter A O Ferrari
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina.
| | - Jorge Barneche
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina.
| | - Juan J García
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina; Comisión de Investigaciones Científicas (CIC), La Plata, 1900, Buenos Aires, Argentina.
| | - Claudia C López Lastra
- Centro de Estudios Parasitológicos y de Vectores - CEPAVE (CONICET, Consejo Nacional de Investigaciones Científicas; UNLP, Universidad Nacional de La Plata), La Plata, 1900, Buenos Aires, Argentina.
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Marcotegui PS, Montes MM, Barneche J, Ferrari W, Martorelli S. Geometric morphometric on a new species of Trichodinidae. A tool to discriminate trichodinid species combined with traditional morphology and molecular analysis. Int J Parasitol Parasites Wildl 2018; 7:228-236. [PMID: 29988856 PMCID: PMC6032030 DOI: 10.1016/j.ijppaw.2018.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 06/11/2018] [Accepted: 06/17/2018] [Indexed: 11/14/2022]
Abstract
This study reports a new Trichodinidae, Trichodina bellottii n. sp., parasitizing the pearly fish Austrolebias bellottii from Buenos Aires, Argentina. Its small subunit ribosomal ribonucleic acid (SSU rDNA) was sequenced for the first time. Based on the results from morphological identification, SSU rDNA sequencing, and Elliptical Fourier analysis, the new species was identified and compared with similar species. Phylogenetic analysis revealed that the genetic distances among the new species and similar species reached interspecific levels, furthermore, the phylogenetic study also validated the identification of T. bellottii n. sp. and its placement in the genus Trichodina. To be able to quantitatively describe the differences in shapes with similar species, this study used the elliptic Fourier analysis by first time in this genus. A new species of Trichodina is described. A trichodinid species is reported by first time on an annual fish. Using Fourier analysis the new species can be differentiated from similar species.
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Affiliation(s)
- Paula S Marcotegui
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CCT-La Plata-CONICET-UNLP), Argentina
| | - Martin M Montes
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CCT-La Plata-CONICET-UNLP), Argentina
| | - Jorge Barneche
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CCT-La Plata-CONICET-UNLP), Argentina
| | - Walter Ferrari
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CCT-La Plata-CONICET-UNLP), Argentina
| | - Sergio Martorelli
- Centro de Estudios Parasitológicos y de Vectores (CEPAVE) (CCT-La Plata-CONICET-UNLP), Argentina
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Montes MM, Barneche J, García I, Preisz S, Martorelli SR. New data on the acanthocephalan Neoechinorhynchus villoldoi Vizcaíno, 1992 (Neoechinorhynchidae: Acanthocephala), based on specimens found in Austrolebias bellottii (Steindachner, 1881) (Rivulidae: Cyprinodontiformes) from Punta Indio, Argentina. CheckList 2017. [DOI: 10.15560/13.4.53] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Manfrino RG, González A, Barneche J, Tornesello Galván J, Hywell-Jones N, López Lastra CC. Contribution to the knowledge of pathogenic fungi of spiders in Argentina. Southernmost record in the world. Rev Argent Microbiol 2017; 49:197-200. [DOI: 10.1016/j.ram.2016.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 10/14/2016] [Accepted: 10/29/2016] [Indexed: 11/25/2022] Open
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Abstract
Two new species of Plesiopelma Pocock, 1901 from northern Argentina are described and diagnosed based on males and habitat descriptions are presented. Males of Plesiopelma paganoi sp. nov. differ from most of species by the absence of spiniform setae on the retrolateral face of cymbium, aspect of the palpal bulb. Plesiopelma aspidosperma sp. nov. differs from most species of the genus by the presence of spiniform setae on the retrolateral face of cymbium and it can be distinguished from P. myodes Pocock, 1901, P. longisternale (Schiapelli & Gerschman, 1942) and P. rectimanum (Mello-Leitão, 1923) by the separated palpal bulb keels and basal nodule of metatarsus I very developed. It differs from P. minense (Mello-Leitão, 1943) by the shape of the palpal bulb and basal nodule on metatarsus I well developed. Specimens were captured in Salta province, Argentina, inhabiting high cloud forests of Yungas eco-region.
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Abstract
A new species of Eupalaestrus Pocock, 1901 from northern Argentina is described and illustrated. Males and females of Eupalaestrus larae sp. nov. differ from those all other species of the genus by the color with distinct two parallel longitudinal stripes on the femora, patellae, tibiae and one longitudinal stripe reaching half of metatarsi; the presence of a thickened femur and tibia IV; a straight embolus of the male palpal bulb and retrolateral keel pronounced. Specimens were captured in Chaco province, inhabiting unflooded flat grasslands open areas inside forest in transitional Chaco eco-region.
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