Use of a Saponin Based Molluscicide to Control Pomacea canaliculata Snails in Southern Brazil

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dc.contributor.authorSan Martin, R.
dc.contributor.authorGelmi, Claudio
dc.contributor.authorde Oliveira, Jaime Vargas
dc.contributor.authorGalo, Jose Luis
dc.contributor.authorPranto, Honorio
dc.date.accessioned2024-01-10T12:10:34Z
dc.date.available2024-01-10T12:10:34Z
dc.date.issued2009
dc.description.abstractPomocea canaliculata snails pose a severe problem to direct seeded rice cultivated in Southern Brazil. Control of this snail is nowadays performed with toxic chemicals such as copper sulfate and fungicides such as fentin. A novel natural molluscicide based on alkali modified quinoa (Chenopodium quinoa) saponins was tested under laboratory conditions. Snails were collected in rice fields close to Porto Alegre (State of Rio Grande do Sul) and in Brusque (State of Santa Catarina, 400 km north of Porto Alegre). In Santa Catarina the product was very effective, while in Porto Alegre it had no effect. This unexpected behavior was probably due to the respiratory habits of the snails under different contents of dissolved oxygen In the water. Near Porto Alegre the water used in rice fields is heavily polluted, with dissolved oxygen levels of 1-2 ppm, and the snails rely primarily oil their siphon and lungs to breathe. Since saponin control is probably due to ail interaction between saponins with the sterols present in the cell walls in the gills, no control was observed. By contrast, in Santa Catarina the dissolved oxygen level of the water is 5-6 ppm, and the snails remain mostly underwater, breathing with their gills. In this case the snails died within 24 h at a dose of 20 and 30 ppm of product. To test this observation, snails grown in polluted waters were forced to remain underwater in saponin solutions and water (control) preventing the use of their siphon to breathe. The snails exposed to saponin Solutions died, while the control snails survived, indicating that they were still able to use their gills to breathe. These results indicate that the use of the saponin product is limited to rice fields not irrigated with heavily polluted waters.
dc.description.funderINNOVA
dc.format.extent4 páginas
dc.fuente.origenWOS
dc.identifier.eissn1555-9475
dc.identifier.issn1934-578X
dc.identifier.pubmedidMEDLINE:19911565
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76588
dc.identifier.wosidWOS:000270962600003
dc.information.autorucIngeniería;Gelmi C;S/I;7637
dc.information.autorucIngeniería;San Martín R;S/I;51656
dc.issue.numero10
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final1330
dc.pagina.inicio1327
dc.publisherSAGE PUBLICATIONS INC
dc.revistaNATURAL PRODUCT COMMUNICATIONS
dc.rightsregistro bibliográfico
dc.subjectPomacea canaliculata
dc.subjectChenopodium quinoa
dc.subjectsaponin
dc.subjectmolluscicide
dc.subjectEPITHELIUM
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleUse of a Saponin Based Molluscicide to Control Pomacea canaliculata Snails in Southern Brazil
dc.typeartículo
dc.volumen4
sipa.codpersvinculados7637
sipa.codpersvinculados51656
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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