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da Silva GF, do Lago Santana G, Silva-Filho HF, Dos Santos JN, de Vasconcelos Melo FT, Maschio GF. HELMINTH FAUNA OF THECADACTYLUS RAPICAUDA (HOUTTUYN, 1782) (SQUAMATA, PHYLLODACTYLIDAE) IN THE CAXIUANÃ NATIONAL FOREST, FROM THE BRAZILIAN EASTERN AMAZON. J Parasitol 2021; 107:660-667. [PMID: 34437679 DOI: 10.1645/21-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The Amazon region is an important region for biodiversity, and many new species are described for this region each year. However, the diversity of parasites infecting Amazonian reptiles is still poorly known, and there are few studies about how parasite communities of these hosts are structured. Our study was designed to elucidate the parasite community structure of Thecadactylus rapicauda, one of the largest species of gekkonid lizards in the world, and to discover the relative utility of size, sex, and body mass of Thecadactylus rapicauda as predictive factors of the abundance of helminth parasites. We analyzed 40 individuals of T. rapicauda, of which 34 had parasites (85% of prevalence), with 269 specimens allocated to 10 species. Body size of the host showed a positive influence on the abundance of helminths. Host sex is another important factor related to the abundance of nematodes: females were usually heavily infected. We conclude that T. rapicauda has a high richness of the helminth species and that most of the species found infecting this host were nematodes with a direct life cycle. Additionally, we found new helminth species, which should be described formally in the future.
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Affiliation(s)
- Geovania Figueiredo da Silva
- Instituto Federal de Ciência e Tecnologia do Maranhão-Campus Presidente Dutra, Rua Adalberto Macedo S/N, 65760-000, Presidente Dutra, Maranhão, Brazil
| | - Gisele do Lago Santana
- Universidade Federal do Pará-Instituto de Ciências Biológicas (ICB)-Programa de Pós-Graduação em Zoologia convênio com o Museu Emílio Goeldi-PPGZool/MPEG, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil
| | - Heriberto Figueira Silva-Filho
- Laboratório de Biologia Celular e Helmintologia "Profa. Dra. Reinalda Marisa Lanfredi", Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil
| | - Jeannie Nascimento Dos Santos
- Laboratório de Biologia Celular e Helmintologia "Profa. Dra. Reinalda Marisa Lanfredi", Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil
| | - Francisco Tiago de Vasconcelos Melo
- Laboratório de Biologia Celular e Helmintologia "Profa. Dra. Reinalda Marisa Lanfredi", Instituto de Ciências Biológicas, Universidade Federal do Pará, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil.,Universidade Federal do Pará-Instituto de Ciências Biológicas (ICB)-Programa de Pós-Graduação em Zoologia convênio com o Museu Emílio Goeldi-PPGZool/MPEG, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil
| | - Gleomar Fabiano Maschio
- Universidade Federal do Pará-Instituto de Ciências Biológicas (ICB)-Programa de Pós-Graduação em Zoologia convênio com o Museu Emílio Goeldi-PPGZool/MPEG, Augusto Correa, 01, 66075-110, Belém, Pará, Brazil
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Silva EO, Diniz JAP, Lainson R, DaMatta RA, de Souza W. Ultrastructural aspects of Fallisia effusa (Haemosporina: Garniidae) in thrombocytes of the lizard Neusticurus bicarinatus (Reptilia: Teiidae). Protist 2005; 156:35-43. [PMID: 16048131 DOI: 10.1016/j.protis.2004.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The fine structure of the different stages of the Fallisia effusa (Haemosporina: Garniidae), infecting the thrombocytes of the semi-aquatic Amazonian lizard Neusticurus bicarinatus (Reptilia: Teiidae) is described. Gametocytes, meronts, and merozoites of Fallisia effusa were found within a parasitophorous vacuole (PV). Multiple infections of micro- and macrogametocytes were observed. A circumferential coil of microtubules was seen in the cytoplasm of the infected host cell and this microtubule array was pronounced in cells harboring gametocytes. A deep invagination of the inner membrane complex of gametocytes may be involved in nutrition. The non-pigmented parasites underwent both merogony and gametogony in thrombocytes of the peripheral blood. No infection of the erythrocytes was observed. These observations confirm that Fallisia effusa displays characteristic features distinguishing it from other members of the Haemosporidian families, and that it has the ability to modulate microtubule assembly.
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Affiliation(s)
- Edilene O Silva
- Laboratório de Parasitologia, Departamento de Patologia, Centro de Ciências Biológicas, Universidade Federal do Pará, Av. Augusto Corrêa s/n, Bairro Guamá, 66075-110 Belém, Pará, Brazil.
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