Search Results for: Toxicity

Abstract: Glyphosate-based herbicides (e.g. Roundup) are extensively used in the aquatic environment, but there is a paucity of data on the toxicity of the formulated products and the influences by environmental factors. In this study, the acute toxicity of technical-grade glyphosate acid, isopropylamine (IPA) salt of glyphosate, Roundup and its surfactant polyoxyethylene amine (POEA) to …

Abstract: Agricultural genetically modified (GM) plants are essentially plants which contain pesticides, because they were designed to tolerate or produce pesticides. In 2011, GM crops reached 160 million hectares, with 59 % of herbicide tolerance (mainly Roundup) mostly in soybean, maize, canola, cotton, 15 % of insecticide producing varieties and 26% combining both traits (James …

Abstract: Microorganisms contribute significantly to primary production, nutrient cycling, and decomposition in estuarine ecosystems; therefore, detrimental effects of pesticides on microbial species may have subsequent impacts on higher trophic levels. Pesticides may affect estuarine microorganisms via spills, runoff, and drift. Both the structure and the function of microbial communities may be impaired by pesticide toxicity. …

Abstract: Low levels of glyphosate based herbicide induced significant negative effects on the aquatic invertebrate Daphnia magna. Glyphosate herbicides such as brands of Roundup, are known to be toxic to daphnids. However, published findings on acute toxicity show significant discrepancies and variation across several orders of magnitude. To test the acute effects of both glyphosate …

Text: The findings of Richard et al. (2005) are an important addition to our understanding that the health and environmental effects of formulated pesticide products are not fully reflected in tests conducted on the active ingredient(s) alone. It has been long known that the adjuvants (commonly and misleadingly called “inert” ingredients) may be toxic and …

Abstract: Glyphosate, in the commercial formulation named Roundup, is a broad spectrum herbicide that is one of the most frequently applied pesticides in the world. However, there has been little evidence of Roundup toxicity or genotoxicity. Genotoxicity of glyphosate was carried out using the Escherichia coli SOS chromotest. The glyphosate-induced dose response in the SOS …

Abstract: Gyphosate‐basedherbicides are among the most widely used pesticides in the world. We compared the acute toxicity of the glyphosate end‐use formulation Roundup Original® to four North American amphibian species (Rana clamitans, R. pipiens, R. sylvatica, and Bufo americanus) and the toxicity of glyphosate technical, the polyethoxylated tallowamine surfactant (POEA) commonly used in glyphosate‐based herbicides, …

Abstract: The aim of this study was to evaluate the possible hepatorenal toxicity and genotoxicity from eating meat meal of genetically modified (GM) Japanese quail in 90 days dietary experiment using micronucleus (MN) test, mitotic index (MI) and RAPD-PCR for genotoxicity assay, ALT, AST, urea and creatinine for hepatorenal toxicity. Four groups of Swiss male …

Abstract: The responses of five North American frog species that were exposed in an aqueous system to the original formulation of Roundup were compared. Carefully designed and un-confounded laboratory toxicity tests are crucial for accurate assessment of potential risks from the original formulation of Roundup to North American amphibians in aquatic environments. The formulated mixture …

Abstract: The purpose of this study was to investigate and compare the cytotoxicity of glyphosate alone or included in Roundup 3 plus® modulated by the cytoprotective effects of additional antioxidants such as Vitamin C and Vitamin E on the human keratinocytes cell line HaCaT. An experimental design which allows to minimize the number of experiments …

Abstract: Pesticides are always used in formulations as mixtures of an active principle with adjuvants. Glyphosate, the active ingredient of the major pesticide in the world, is an herbicide supposed to be specific on plant metabolism. Its adjuvants are generally considered as inert diluents. Since side effects for all these compounds have been claimed, we …

Abstract: Glyphosate based herbicides, including Roundup®, are frequently used in the chemical control of weeds and invading alien plant species in South Africa. These herbicides ultimately get into water courses directly or indirectly through processes such as drifting, leaching, surface runoff and foliar spray of aquatic nuisance plants. Despite their widespread use, no water quality …

Abstract: The purpose of this study was to measure the toxicity of malathion and glyphosate (the active ingredient in Roundup®, to San Diego fairy shrimp (Branchinecta sandiegonensis). The endemic San Diego fairy shrimp has been listed as endangered due to habitat loss and degradation of southern California vernal pools. The risk to fairy shrimp from …

Abstract: Glyphosate-based products are the leading post-emergent agricultural herbicides in the world, particularly in association with glyphosate tolerant crops. However, studies on the effects of glyphosate-based formulations on terrestrial receptors are scarce. This study was conducted to evaluate the comparative toxicity of two glyphosate-based products: Roundup FG (monoammonium salt, 72% acid equivalent, glyphosate-A) and Mon …

Abstract: Context – Among the 134 million hectares of genetically modified plants growing worldwide in 2009, more than 99.9 % are described as pesticide plants (Clive 2009). Around 80 % are tolerant to Roundup, a glyphosate based herbicide. Its use on GMOs is thus amplified, and this phenomenon shed a new light on the problem …

Abstract: The effects on the green alga Chlorella vulgaris of 40 herbicides in 19 different chemical structure classes and with 11 dissimilar modes of action were studied through 96-h acute toxicity tests. Experimental results indicated that the average acute toxicity of acetolactate synthase (ALS)-inhibiting herbicides to C. vulgaris was close to those of the acetyl-CoA …

Abstract: Pesticides and herbicides gained popularity due to a strong need to curb the starvation of billions of humans. Glyphosate is the most commonly used herbicide and was considered to be non-toxic. But its use in excess in agricultural lands has polluted soils and waters. Nowadays, glyphosate residues are found in soil, water and food. …

Abstract: Pesticides have been implicated in widespread amphibian declines. We assessed acute and chronic toxicity of two widely used herbicides to larval New Mexico (Spea multiplicata) and Plains (S. bombifrons) spadefoots from cropland and native grassland playas. Roundup WeatherMAX® (WM) toxicity estimates (48- and 216-h LC50; 48-h LC1) for both species were similar to environmental …

Abstract: The major pesticides of the world are glyphosate-based herbicides (GBH), and their toxicity is highly debated. To understand their mode of action, the comparative herbicidal and toxicological effects of glyphosate (G) alone and 14 of its formulations were studied in this work, as a model for pesticides. GBH are mixtures of water, with commonly …

Abstract: The use of agrochemicals, especially herbicides, is necessary to control pests in order to produce adequate food for the global population (estimated at 7 billion). Glyphosate and glyphosate-based herbicides have been used extensively for this purpose but recent studies have reported these chemical substances to be found in aquatic ecosystems, wildlife and humans in …

Abstract: The world wide and continuously increasing contamination of aquatic and terrestrial ecosystems with pesticides and other agrochemicals is considered as a main factor causing global amphibian declines. Glyphosate, the most commonly used nonselective systemic herbicide, is sold under a variety of commercial names (e. g. Roundup® and Vision®), and is promoted by the introduction …

Abstract: Glyphosate is a broad spectrum herbicide. Fruits and vegetables improve health and a diminish chronic degenerative processes. This study aims to investigate orange juice protective role against the toxicity of glyphosate induced in mice. Fifty six adult male albino mice divided into seven groups. Oral administration of glyphosate caused a significant increase in MDA …

Abstract: Throughout the world pesticides are widely employed in agriculture sector in order to elevate crops’ yield with low labour and efforts. Pesticides exposure leads to toxicity in many non-target organisms, fish being one of the most prominent among these. Most of the time acute concentration of these pesticides leads to mortality while sub lethal …