Distribuição de Biomphalaria glabrata (Say, 1818) (Pulmonata, Planorbidae) no Estado de São Paulo, Brasil

Teles, Horacio Manuel Santana; Vaz, Jorge Faria

doi:10.1590/s0034-89101987000600007

Cited by 15 publications

(10 citation statements)

References 6 publications

(2 reference statements)

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“…Em 1981, Paraense descreve a B. occidentalis, esclarecendo definitivamente as diferenças específicas entre a espécie e a B. tenagophila. Refeito o quadro de composição de planorbídeos na região de Ourinhos, deu-se como certa a presença de B. glabrata, B. tenagophila e B. occidentalis (Piza et al 1972, Vaz et al 1985, Teles & Vaz, 1987, Teles 2005 (Figura 4a, b). Essa acentuada biodiversidade pode estar relacionada com a complexidade deste habitat constituído por latossolo, com abundante vegetação aquática flutuante, principalmente aguapés-Eichornia SP, um microambiente que serve de abrigo e suporte para desovas ovipositadas por caramujos (Freitas 1976) (Figura 5a).…”

Section: Resultsunclassified

Distribuição e diversidade de espécies do gênero Biomphalaria em microrregiões localizadas no Médio Paranapanema, São Paulo, SP, Brasil

Tuan

2009

Biota Neotrop.

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TUAN, R. 2009. Diversity and distribution of the Biomphalaria species in the middle reaches of the Paranapanema River, São Paulo, SP, Brazil. Biota Neotrop. 9(1): http://www.biotaneotropica.org.br/v9n1/en/ abstract?short-communication+bn03009012009. Abstract:The predominant landscape in the studied region, composed by the Paranapanema and Pardo rivers, has been significantly affected by human interference in order to create extensive artificial irrigation ditches for agriculture. These environments are subject to drastic variations in water supply whereby draughts are created what bears a drastic populational fluctuation. The composition of schistosomiasis-associated planorbid fauna in Ourinhos and Ipauçu herein presented corroborate previous malacological surveys, which incriminates Biomphalaria. glabrata (Say, 1818) as the predominant species mainly at the Ourinhos micro-regions. At this site the snail distribution might be linked to the composition of deposited sediments in the hydrographic basin. Data from Ipauçu, a collection site that is only 30 km from Ourinhos, indicates absence of B. glabrata, and predominance of B. tenagophila (Orbigny, 1835

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Section: Resultsunclassified

Distribuição e diversidade de espécies do gênero Biomphalaria em microrregiões localizadas no Médio Paranapanema, São Paulo, SP, Brasil

Tuan

2009

Biota Neotrop.

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“…Biomphalaria tenagophila is the second most important specie related to the transmission of schistosomiasis in Brazil and in São Paulo State it is the most important intermediate host 36 . The relationship between the distribution of planorbids and schistosomiasis occurrence was observed in some studies 10,31,35,36,37,38 . Studies on the distribution of snails and presence of S. mansoni cercaria in metropolitan areas of São Paulo, is very scarce.…”

mentioning

confidence: 85%

Schistosoma mansoni and other larval trematodes in Biomphalaria tenagophila (Planorbidae) from Guarulhos, São Paulo State, Brazil

Moraes

Silva

Ohlweiler

et al. 2009

Rev. Inst. Med. trop. S. Paulo

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suMMaryA total of 909 Biomphalaria tenagophila were collected from two areas in Guarulhos (Metropolitan area of São Paulo, São Paulo State, Brazil) to assess larval trematode infections. In all collection sites, only this species was found and 183 (20.13%) harbored trematode infections. In these collections, four morphologically distinguishable types of cercariae were identified by confocal microscopy. Xiphidiocercaria (Cercaria lutzi) was the most common type of cercaria recovered, contributing 76.5% of all infections. Schistosoma mansoni cercariae were recovered and comprised the total of 13.11%. Strigea cercaria (Cercaria caratinguensis) and Brevifurcate pharyngeate Clinostomatoide cercaria (Cercaria ocellifera) contributed 8.33% and 2.22% of all infections, respectively. Double infections (S. mansoni and C. lutzi) were found in twelve snails, contributing 6.55% of all infections. In all sites studied, small vertebrates were found in snail habitats and it was observed human contact with the water. The presence of trematode infected snails in large cities has public health implications. It further provides a starting point for some comprehensive studies on snail-related aspects of transmission and biology of trematode of medical and veterinary importance.

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“…Biomphalaria glabrata (Say, 1818) has a wide geographic distribution and high susceptibility to Schistosoma mansoni (Sambon, 1907), thus representing the most important vector of schistosomiasis (Paraense et al, 1983;Teles and Vaz, 1987). This species also has a considerable degree of intraspecific polymorphism .…”

Section: Introductionmentioning

confidence: 99%

Genetic differences between strains of Biomphalaria glabrata (Planorbidae) that are susceptible and unsusceptible to schistosomiasis

Oliveira¹,

Silva²,

Manzano³

et al. 2010

Genet. Mol. Res.

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ABSTRACT. Despite the implementation control programs, schistosomiasis continues to spread throughout the world. Among modern control strategies, vector control is currently being emphasized. Within this context, analysis of the genetic variability of intermediate host snails (Biomphalaria spp) is important because it allows identification of specific sequences of the genome of this mollusk related to suscep- 1451©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 9 (3): 1450-1459 (2010) Genetic variability between Biomphalaria glabrata strains tibility/resistance to Schistosoma mansoni infection. We investigated Brazilian albino (non-pigmented) and pigmented (wild type) strains of Biomphalaria glabrata; these strains differ in their susceptibility to S. mansoni infection. Genetic variability was studied by RAPD-PCR using different random primers. The electrophoretic patterns resulting from amplification showed specific polymorphic markers for the albino and pigmented strains of B. glabrata. This information will help in the identification and isolation of genes specifically related to susceptibility, demonstrating that RAPD-PCR is an appropriate and efficient methodological approach for analysis of the genetic variability of schistosomiasis vectors.

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Distribuição de Biomphalaria glabrata (Say, 1818) (Pulmonata, Planorbidae) no Estado de São Paulo, Brasil

Cited by 15 publications

References 6 publications

Distribuição e diversidade de espécies do gênero Biomphalaria em microrregiões localizadas no Médio Paranapanema, São Paulo, SP, Brasil

Distribuição e diversidade de espécies do gênero Biomphalaria em microrregiões localizadas no Médio Paranapanema, São Paulo, SP, Brasil

Schistosoma mansoni and other larval trematodes in Biomphalaria tenagophila (Planorbidae) from Guarulhos, São Paulo State, Brazil

Genetic differences between strains of Biomphalaria glabrata (Planorbidae) that are susceptible and unsusceptible to schistosomiasis

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