Vis enkel innførsel

dc.contributor.authorHorn, Suranie
dc.contributor.authorBøhn, Thomas
dc.contributor.authorPeters, Rialet
dc.date.accessioned2020-01-23T13:34:57Z
dc.date.available2020-01-23T13:34:57Z
dc.date.created2019-09-03T11:59:56Z
dc.date.issued2019
dc.identifier.citationSouth African Journal of Science. 2019, 115 (9-10), 1-7.nb_NO
dc.identifier.issn0038-2353
dc.identifier.urihttp://hdl.handle.net/11250/2637677
dc.description.abstractAgriculture plays a vital role in the South African economy, as well as in the production of maize for food. Genetically modified maize is transformed to encode for crystalline (Cry) proteins found in Bacillus thuringiensis (Bt) and is referred to as Bt maize. Ingestion of specific Cry proteins causes the death of target insects that cause harm to maize plants. Bt crops, along with herbicides such as glyphosate and 2,4-dichloro- phenoxyacetic acid (2,4-D), are widely adopted as part of the South African farming regime that aims to increase crop yield and reduce costs of production. As chemical compounds used in agriculture often end up in water sources, their presence should be monitored. There are many such monitoring programmes worldwide, but not in South Africa. We screened surface water sources in a maize-dominated agricultural area in the North West Province in South Africa for the presence of Cry1Ab, glyphosate and 2,4-D using enzyme-linked immunosorbent assays (ELISAs). Cry1Ab was not detected at any site; glyphosate was below the limit of detection at most of the sites but one sample had quantifiable traces of glyphosate; and 2,4-D was detected at all the sites. The concentrations of 2,4-D exceeded those for drinking water according to European guidelines, thus highlighting the need for regular monitoring of these compounds. Many people depend on untreated water resources, which may be contaminated by toxic agricultural chemicals. This report is the first on levels of these target compounds in South African water systems.nb_NO
dc.language.isoengnb_NO
dc.titleA first assessment of glyphosate, 2,4-D and Cry proteins in surface water of South Africanb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber1-7nb_NO
dc.source.volume115nb_NO
dc.source.journalSouth African Journal of Sciencenb_NO
dc.source.issue9-10nb_NO
dc.identifier.doi10.17159/sajs.2019/5988
dc.identifier.cristin1720970
cristin.unitcode7431,17,0,0
cristin.unitnameSykdom og smittespredning
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel