Persistence and Bioactivity of Metsulfuron-Methyl in Three Soils

Ismail, B. S.; Azlizan, B. A.

doi:10.1081/pfc-120004475

Cited by 11 publications

(9 citation statements)

References 12 publications

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“…Many authors have concluded that soil bioactivity is the main factor influencing degradation of this sulfonylurea. Studies of the influence of soil properties on degradation have shown that largest effects on degradation were observed in response to soil sterilisation 33, 34…”

Section: Resultsmentioning

confidence: 99%

Adsorption and degradation of four acidic herbicides in soils from southern Spain

Villaverde¹,

Kah²,

Brown

2008

Pest Management Science

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Both OM and clay content were found to be important in determining adsorption, but relative differences in clay content between soils were much larger than those in OM content, and therefore clay content was the main property determining the extent of herbicide adsorption for soils of this type. pH was negatively correlated with adsorption for all compounds apart from metsulfuron-methyl. The contrasting behaviour shown for these four acidic pesticides indicates that chemical degradation in soil is more difficult to predict than adsorption. Most of the variables measured were interrelated, and different behaviours were observed even for compounds from the same chemical class and with similar structures.

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Section: Resultsmentioning

confidence: 99%

Adsorption and degradation of four acidic herbicides in soils from southern Spain

Villaverde¹,

Kah²,

Brown

2008

Pest Management Science

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“…This may be due to a deduction in numbers of the inoculants. As compared with the sterile soil samples, efficiency of degradation in bulk soils was much better, which demonstrates that indigenous soil microorganisms also play an important role in xenobiotics degradation (Ismail & Azlizan, 2002;Yu, Chen, & Luo, 2003). It has been known that in alkaline soil, biodegradation was predominant in the degradation of MTS over the chemical hydrolysis (Hemmamda et al, 1994), but a small extent loss of MTS was also observed in sterile soils, and the difference between the RE amended columns and the unamended was also significant at the end of culture.…”

Section: Discussionmentioning

confidence: 91%

Study on Metsulfuron-Methyl Degradation in Simulated Wheat (Triticum Asetivum L.) Rhizospheric Soil with Penicillium sp. Inoculation

Shen

et al. 2006

Water Air Soil Pollut

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The rapid biodegradation of metsulfuronmethyl in contaminated soil was studied in this paper. The wheat (Triticum aestivum L.) rhizosphere was well simulated by setting up a hydroponic system that allowed the aseptic wheat root exudates flow onto columns containing soil previously contaminated with metsulfuron-methyl. The root-colonizing strain Penicillium sp. containing highly effective degrading plasmid on metsulfuron-methyl was inoculated in the soil, with the bulk and sterile ones as control. In soil from columns that received root exudates from a planted (versus an unplanted) apparatus, there was a significant increase in the growth of the tolerant fungi and the degradation of metsulfuron-methyl. On the other hand, the inoculation of Penicillium sp. also notably enhanced the degradation of the target herbicide. The extent of stimulation was more than twice of that measured in bulk soil. The fastest rate of disappearance of the xenobiotic occurred in the amended inoculated microcosms with 8.6 days of the half-life.The main types of low molecular weight organic acids and amino acids in the root exudates was determined to be oxalic acid, succinic acid and threonine, alanine, proline, methionine, lysine, isoleucine and leucine. What's more, by means of applying metsulfuronmethyl once again, the acclimated soil microorganisms with Penicillium sp. inoculation could sustainable rapid degrade metsulfuron-methyl. The results show that inoculation of the root-colonizing Penicillium sp. in wheat rhizosphere may be an effective approach for the rapid detoxification of soil metsulfuron-methyl contamination.

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“…Trifluralin was strongly sorbed to the soil with minimal leaching, but both metolachlor and metribuzin exhibited high leaching potential. Ismail and Azlizan (2002) studied the persistence of metasulfuron-methyl in nonautoclaved and autoclaved soils incubated at different temperatures and with different moisture contents in a laboratory environment. Metasulfuronmethyl degradation was significantly greater in the nonautoclaved soils than the autoclaved soils indicating the importance of biodegradation.…”

Section: Fate and Transportmentioning

confidence: 99%

Pesticides and Herbicides

Bhandari¹,

Kang²,

Starrett³

2000

Water Environment Research

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This review summarizes the most current technical literature dealing with pesticides and herbicides in the environment. Citations included in this review focus primarily on analytical methods, monitoring, fate and transport, transformation, and treatment strategies as related to pesticides and herbicides in soils, sediments, surface water, and groundwater. ANALYTICAL METHODSOver the past year, several scientists reported on the use of assays for pesticide detection. Wang et al. (2002a) developed an antibody-based rapid test for carbaryl and methoprene for grain handlers to estimate residues of grain protectants in the field. The test had a detection limit of 4.5 ppb (1.1 ppm in grain) for carbaryl and 4 ppb (1 ppm in grain) for methoprene. The variable domains of a triazine-selective single-chain Fv were genetically engineered by stringent molecular evolution in order to optimize analytical characteristics of the corresponding atrazine immunoassay (Kramer, 2002). The application of the mutant antibodies for the atrazine determination of soil samples revealed consistency with HPLC data within the experimental error. Maqbool et al. (2002) developed an ELISA technique for the analysis of atrazine in water with a detection limit of 1 ng/L. Additionally, a rapid and efficient method for the Literature Review 2003 2 selective extraction of s-triazine herbicides in environmental samples was developed using an immunosorbent of monoclonal antiatrazine antibodies, which were encapsulated in a sol-gel glass matrix (Stalikas et al., 2002). High performance liquid chromatography was the primary analytical technique used in two studies. Bassett et al. (2002) developed a high performance liquid chromatographic method to meet the U.S. Environmental Protection Agency's (EPA) Unregulated Contaminant Monitoring Rule (UCMR) Survey need for the analysis of phenylurea pesticides in drinking waters. A molecularly imprinted polymer was synthesized using the herbicide metsulfuronmethyl as a template, 2-(trifluoromethyl)acrylic acid as a functional monomer, divinylbenzene as a cross-linker, and dichloromethane as a porogen (Zhu et al., 2002). This polymer was used as a solid-phase extraction material for the quantitative enrichment of five sulfonylureas (nicosulfuron, thifensulfuron-methyl, metsulfuron-methyl, sulfometuron-methyl, and chlorsulfuron) in natural water and soil samples and off-line coupled to a reversed-phase HPLC/diode array detection. Gas chromatography and solid phase extraction was used for analysis of several pesticides. Duseja and Martindale (2002) compared the results of HPLC with GC analyses on oxyflourfen. The comparison proved that the GC analysis held a high recovery percentage for soils with a MDL of at least 0.005 µg/g, allowing considerable savings of time and labor versus HPLC. Boussahel et al. (2002) reported on the use of solid-phase micro-extraction followed by gas chromatography coupled with an electron capture detector for the analysis of Literature Review 2003 4 algal cell suspensions for the screenin...

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Persistence and Bioactivity of Metsulfuron-Methyl in Three Soils

Cited by 11 publications

References 12 publications

Adsorption and degradation of four acidic herbicides in soils from southern Spain

Adsorption and degradation of four acidic herbicides in soils from southern Spain

Study on Metsulfuron-Methyl Degradation in Simulated Wheat (Triticum Asetivum L.) Rhizospheric Soil with Penicillium sp. Inoculation

Pesticides and Herbicides

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