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Semi-field studies on biochemical markers of honey bee workers (Apis mellifera) after exposure to pesticides and their mixtures.
PLoS One
January 2025
Department of Bees Breeding, Institute of Animal Husbandry and Breeding, Wroclaw University of Environmental and Life Sciences, Wroclaw, Poland.
Article Synopsis
- Many pesticides used in agriculture can accumulate in the environment, exposing bees to multiple substances simultaneously, which is not commonly studied in research.
- The study focused on the chronic effects of pesticide mixtures on honey bee worker's hemolymph, using concentrations found in their natural environment.
- Results showed that acetamiprid decreased urea levels significantly, glyphosate had little effect, and tebuconazole, despite being considered safe, caused notable changes in several biochemical markers, indicating a need for further research on fungicides' impact on bees.
A comparative study of ionic pesticide sorption and degradation in contrasting Brazilian soils and the development of a novel 3-Phase Assay to assess sorption reversibility.
Environ Monit Assess
January 2025
Syngenta Ltd, Jealott's Hill International Research Centre, Warfield, Bracknell, RG42 6EY, UK.
Brazilian soils have distinctive characteristics to European and North American soils which are typically used to investigate pesticide fate. This study aimed to compare soil-water partition coefficient (K), reversibility of adsorption and degradation half-life (DT) of 5 pesticides covering a wide range of physico-chemical properties in contrasting Brazilian soils (Argissolo, Gleissolo, Latossolo and Neossolo) and a temperate (UK) alfisol soil, and to study their relationship with soil OM, clay and expandable clay content, CEC and pH. In addition, we used a novel laboratory test to evaluate sorption reversibility, the 3-Phase Assay (3PA).
View Article and Find Full Text PDFEpidemiological analysis of reported acute glyphosate poisoning in Malaysia: identifying risk factors and high-risk groups (2006-2023).
BMJ Open
January 2025
National Poison Centre, Universiti Sains Malaysia, Georgetown, Penang, Malaysia
Objective: Glyphosate is widely used in Malaysian agriculture but poses a significant under-reported public health concern due to poisoning. This paper aims to study the epidemiology of glyphosate poisoning in Malaysia, assessing severity, identifying risk factors, and high-risk groups.
Setting: All glyphosate-related data of the Malaysia National Poison Centre from 2006 to 2023.
Environmental fate and aquatic risk assessment of oxyfluorfen in California rice fields.
Integr Environ Assess Manag
January 2025
Department of Environmental Toxicology, College of Agricultural and Environmental Sciences, University of California, Davis, CA, United States.
The herbicide oxyfluorfen [OXY; 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzene] recently emerged as a potential solution to combat herbicide resistance in California rice. Proposed as a preemergent applied preflood to soil, products are in development for use with OXY-tolerant rice strains. Currently, OXY is not registered for use with rice and its use in or near aquatic resources is restricted due to its high aquatic toxicity.
View Article and Find Full Text PDFArsenic efflux and bioremediation potential of Klebsiella oxytoca via the arsB gene.
PLoS One
January 2025
Molecular Virology Labs, Department of Biosciences, Comsats University Islamabad, Islamabad, Pakistan.
Arsenic-resistant Klebsiella oxytoca strain AT-02 was isolated from the ground water of the Multan region of Pakistan. The strain displayed high arsenite and arsenate resistance as minimal inhibitory concentration (MIC) was 600ppm and 10,000ppm respectively. The high tolerance of the isolated strain towards arsenate can be postulated due to significant increase in biofilm in response to arsenate.
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