Browsing Faculty of Natural and Agricultural Sciences by Author "f484d6e9-0bc5-4341-9972-6628e0ba57ce"
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Bacillus-based bionematicides: development, modes of action and commercialisation
Engelbrecht, Gerhard; Horak, Ilze; Jansen van Rensburg, Peet J.; Claassens, Sarina (Taylor & Francis, 2018)Agricultural crops are severely damaged by root-knot nematodes causing extensive financial losses globally. Historically, agrochemicals have been the preferred method to combat these pests; however, threats to humans and ... -
Can a metabolomics-based approach be used as alternative to analyse fatty acid methyl esters from soil microbial communities?
Willers, Clarissa; Jansen van Rensburg, Peet J.; Claassens, Sarina (Elsevier, 2016)Modern high-throughput approaches such as metabolomics, holds promise for investigating microbial communities. This study evaluated the quantitative and qualitative data generation potential of a metabolomics-based approach ... -
Ecotoxicological assessment of chemical fumigants utilising an earthworm (Eisenia andrei) bioassay and soil microbial communities
Fouché, Tanya C.; Claassens, Sarina; Maboeta, Mark S. (Springer, 2017)Fumigation is an important crop protection practice employed to control soil pathogens and diseases. Metham sodium and cadusafos are two commonly used soil fumigants for this purpose. However, little information is available ... -
The effect of a medic-wheat rotational system and contrasting degrees of soil disturbance on nematode functional groups and soil microbial communities
Habig, Johan; Claassens, Sarina; Labuschagne, Johan; Marais, Mariette; Swart, Antoinette (Elsevier, 2018)During a four-year cropping cycle, the effects of cropping sequence (wheat-medic rotation and wheat monocropping) and contrasting degrees of soil disturbance (conventional tillage and zero tillage) on nematode functional ... -
Effect of biofumigants on soil microbial communities and ecotoxicology of earthworms (Eisenia andrei)
Fouché, Tanya; Maboeta, Mark; Claassens, Sarina (Springer, 2016)Biofumigation is considered a good alternative to chemical fumigation because it can control crop pathogens and diseases with lower health and environmental risks than chemical fumigants. Glucosinolates are volatile compounds ... -
Foraging at wastewater treatment works affects brown adipose tissue fatty acid profiles in banana bats
Hill, Kate; Van Aswegen, Sunet; Claassens, Sarina; Jansen van Rensburg, Peet; Schoeman, M. Corrie (Company of Biologists, 2016)In this study we tested the hypothesis that the decrease in habitat quality at wastewater treatment works (WWTW), such as limited prey diversity and exposure to the toxic cocktail of pollutants, affect fatty acid profiles ... -
Gut microbiota of Busseola fusca (Lepidoptera: Noctuidae)
Snyman, Maxi; Gupta, Arvind Kumar; Bezuidenhout, Cornelius Carlos; Claassens, Sarina; Van den Berg, Johnnie (Springer, 2016)Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is a stemborer pest that attacks maize (Zea mays) throughout sub-Saharan Africa. Genetically modified maize has been shown to be effective against B. fusca. However, resistance ... -
In vitro evaluations to determine the effect of Bacillus firmus strains on the motility of Meloidogyne incognita second-stage juveniles
Jansen-Girgan, Chantelle; Claassens, Sarina; Fourie, Hendrika (Springer, 2016)Eco-friendly control strategies, such as biological agents containing Bacillus firmus, are known to adversely impact the biology of Meloidogyne incognita and other nematode pests that damage agricultural crops. The efficacy ...