Results 11 to 20 of about 10,603 (155)

Molecular identification of similar species of the genus Biomphalaria (Mollusca: Planorbidae) determined by a polymerase chain reaction-restriction fragment length polymorphism [PDF]

Memorias do Instituto Oswaldo Cruz, 1998
The freshwater snails Biomphalaria straminea, B. intermedia, B. kuhniana and B. peregrina, are morphologically similar; based on this similarity the first three species were therefore grouped in the complex B. straminea.
Roberta Lima Caldeira, Teofânia HDA Vidigal, Sônia Torquato Paulinelli, Andrew JG Simpson, Omar S Carvalho   +4 more
doaj   +3 more sources

Identification and characterization ofBiomphalaria peregrina(Orbignyi, 1835) from Agua Escondida in northern Patagonia, Argentina

Journal of Natural History, 2011
During a general malacological survey for freshwater gastropods in northern Patagonia, a population of Biomphalaria was encountered at Agua Escondida. Biomphalaria spp. are freshwater pulmonates of biomedical importance, uncommon in Mendoza Province, and often act as intermediate hosts for Schistosoma mansoni.
Standley, Claire, Poitier, Jean Pierre, Issia, Laura Andrea, Wisnivesky, Maria Cristina, Stothard, R   +4 more
openaire   +3 more sources

Morphological and polymerase chain reaction-restriction fragment lenght polymorphism characterization of Biomphalaria kuhniana and Biomphalaria amazonica from Colombia

Memorias do Instituto Oswaldo Cruz, 2002
In Colombia, five Biomphalaria planorbid species are known: B. kuhniana, B. straminea, B. peregrina, B. canonica and B. oligoza(var. B. philippiana). Among them, B. straminea is intermediate host of Schistosoma mansoni and B.
Luz E Velásquez, Roberta L Caldeira, Victoria Estrada, Omar S Carvalho   +3 more
doaj   +2 more sources

Biomphalaria molluscs (Gastropoda: Planorbidae) in Rio Grande do Sul, Brazil

Memorias do Instituto Oswaldo Cruz, 2009
The present study was aimed at characterising Biomphalaria species using both morphological and molecular (PCR-RFLP) approaches. The specimens were collected in 15 localities in 12 municipalities of the southern region of the state of Rio Grande do Sul ...
Michele Soares Pepe, Roberta Lima Caldeira, Omar dos Santos Carvalho, Gertrud Muller, Liana Konovaloff Jannotti-Passos, Alice Pozza Rodrigues, Hugo Leonardo Amaral, Maria Elisabeth Aires Berne   +7 more
doaj   +2 more sources

Identification of Biomphalaria havanensis and Biomphalaria obstructa populations from Cuba using polymerase chain reaction and restriction fragment length polymorphism of the ribosomal RNA intergenic spacer

Memorias do Instituto Oswaldo Cruz, 2001
In Cuba, several Biomphalaria species have been reported such as B. orbignyi, B. schrammi, B. helophila, B. havanensis and B. peregrina; only the latter three are considered as potential hosts of Schistosoma mansoni.
Teofânia HDA Vidigal, Roberta L Caldeira, Andrew JG Simpson, Omar S Carvalho   +3 more
doaj   +2 more sources

ITS2 variability of Biomphalaria (Mollusca, Planorbidae) species from the Paranapanema Valley (São Paulo State, Brazil): diversity patterns, population structure, and phylogenetic relationships

Genetics and Molecular Biology, 2007
The ribosomal DNA internal transcribed spacer 2 (ITS2) has been shown to be a useful genetic marker for species identification and phylogenetic reconstruction in the genus of freshwater snails Biomphalaria (Preston 1910).
Roseli Tuan, Priscila dos Santos
doaj   +2 more sources

Further studies on the molecular systematics of Biomphalaria snails from Brazil [PDF]

Memorias do Instituto Oswaldo Cruz, 2000
The polymerase chain reaction and restriction fragment length polymorphism (RFLP) of the internal transcribed spacer (ITS) region of the rRNA gene, using the enzyme DdeI were used for the molecular identification of ten species and one subspecies of ...
Teofânia HDA Vidigal, Roberta Lima Caldeira, Andrew JG Simpson, Omar S Carvalho   +3 more
doaj   +2 more sources

The life cycle of Zygocotyle lunata (Trematoda, Paramphistomoidea) in the subtropical region of South America [PDF]

Revista Mexicana de Biodiversidad, 2011
The life cycle of the trematode Zygocotyle lunata (Diesing, 1836) is studied, beginning with cercariae from naturally infected Biomphalaria peregrina (d’Orbigny, 1835) and B.
Margarita Ostrowski de Núñez, Dora Davies, Linus Spatz   +2 more
doaj   +5 more sources

Mollusk communities differ between microenvironments within a shallow lake in the Pampean Region, Argentina [PDF]

Ecología Austral, 2018
The aim of this study is to compare the faunistic mollusk composition at a local scale, in different sites within a shallow lake, and to evaluate the relation between abundance and richness of mollusks and the environmental variables.
Eleonor Tietze, Paula A. Cristini, Sebastián I. Grondona   +2 more
doaj   +3 more sources

Biomphalaria spp. (Preston, 1910) snails in the municipality of Juiz de Fora, Zona da Mata Mineira mesoregion, ate of Minas Gerais, Brazil

Memorias do Instituto Oswaldo Cruz, 2006
This study focuses on the geographic distribution of the snail of the genus Biomphalaria and evaluates its infectivity by Schistosoma mansoni in 5264 specimens collected in the municipality of Juiz de Fora, Minas Gerais, Brazil.
Sandra Helena Cerrato Tibiriçá, Elisabeth Cristina Almeida Bessa, Adalberto Mittherofhe, Milton Ferreira de Castro, Omar dos Santos Carvalho, Roberta Lima Caldeira, Liana Konovaloff Jannotti Passos, Ana Márcia Menezes de Mattos, Liliane Sena Pinheiro, Dirany Sacramento e Silva, Fabiana Oliveira Bastos, Gabriela Quirino Andreoli, Glauco Resende Bonato, Elaine Soares Coimbra   +13 more
doaj   +2 more sources