background: glyphosate (n-phosphonomethyl glycine) is an organophosphorus pesticide with dangerous effects on the environment. in this study, the biodegradation of glyphosate herbicide by halophilic bacteria isolated from qom hoze-soltan lake has been investigated. methods: after sampling and bacterial isolation, native halophilic strains grown in the presence of glyphosate at a wavelength of 6...

objective: importance of management of gardens weeds is an issue that unfortunately has less been investigated by weeds researchers of country. one of the most important restrictive agents of cultivated surface and producing crops of citrus orchards are weeds. methods: to achieve this purpose, a research was performed in plot of valencia orange trees of citrus fruits of dezful in 2013. this pro...

Glyphosate is a broad-spectrum herbicide that is one of the most frequently applied pesticides in the world. Although there has been little consistent evidence of genotoxicity or carcinogenicity from in vitro and animal studies, a few epidemiologic reports have indicated potential health effects of glyphosate. We evaluated associations between glyphosate exposure and cancer incidence in the Agr...

Transgenic glyphosate-resistant (GR) soybean [Glycine max (L.) Merr.] has enabled highly effective and economical weed control. The concomitant increased application of glyphosate could lead to shifts in the soil microbial community. The objective of these experiments was to evaluate the effects of glyphosate on soil microbial community structure, function and activity. Field assessments on soi...

In the present study, toxic effects of glyphosate on Allium cepa L. (Amaryllidaceae) cells were investigated. For this aim, we used the germination percentage, root length, seedling weight, malondialdehyde (MDA) level, frequency of micronucleus (MN), chromosomal aberrations (CAs) and mitotic index (MI) as indicators of toxicity. In addition to the analyses mentioned above, we also examined chan...

S. cerevisiae from different environments are subject to a wide range of selective pressures, whether intentional or by happenstance. Chemicals classified by their application, such as herbicides, fungicides and antibiotics, can affect non-target organisms. First marketed as RoundUp™, glyphosate is the most widely used herbicide. In plants, glyphosate inhibits EPSPS, of the shikimate pathway, w...

sunflower (helinathus annuus) is a susceptible host to the holoparasite hemp broomrape (orobanche ramosa) in central parts of iran, causing yield loss due to severe infestations. a field study was conducted in 2006 to evaluate the efficacy of glyphosate for controlling the parasitic weed hemp broomrape in sunflower. glyphosate was applied once or twice at five rates ranging from 0.075 to 0.450 ...

Several formulations of glyphosate were applied with or without imazapyr in June and October 2000 at sites located in Georgia, M ississippi, and Texas. The objective of the research was to compare control of woody species between experimental and conventional formulations of glyphosate with or without imazapyr. Percentage change in total length of woody stems was evaluated immediately before tr...

The N-nitrosamines of secondary amines are known to be carcinogenic. The nitrosamines of glyphosate are formed on a secondary amine. I now raise the issue of the N-nitrosamines of glyphosate of which there are several, because they are carcinogens and have all been essentially ignored. It appears that Monsanto and the US EPA have hidden the N-nitrosamines of glyphosate from discussion even to t...

Glyphosate use in the United States increased from less than 5,000 to more than 80,000 metric tons/ yr between 1987 and 2007. Glyphosate is popular due to its ease of use on soybean, cotton, and corn crops that are genetically modified to tolerate it, utility in no-till farming practices, utility in urban areas, and the perception that it has low toxicity and little mobility in the environment....