Prometryn Movement Across and Through the Soil

Baldwin, F. L.; Santelmann, P. W.; Davidson, J. M.

doi:10.1017/s0043174500053042

Cited by 8 publications

(4 citation statements)

References 16 publications

(20 reference statements)

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“…It is very important to consider the concentrations of a-and -chlordane which are recovered from the soil at 10-30 cm. Pesticide losses by surface runoff and leaching are interesting from the standpoints of pollution, effects on nontarget species, and reduced effectiveness of the pesticide at the target site (Baldwin et al, 1975). AG chlordane movement due to runoff was small, as has generally been reported for other pesticides (Bradley et al, 1972;Edwards and Glass, 1971; Caro and Taylor, 1971).…”

Section: Resultsmentioning

confidence: 91%

Decline and movement of AG chlordane in soil and its residues in alfalfa

Tafuri¹,

Businelli²,

Scarponi³

et al. 1977

J. Agric. Food Chem.

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Analytical methods for the determination of a-, y-, oxy-, and photo-cis-chlordane are described. Experimental plots were treated prior to planting with AG chlordane 10% granules at dose rates of 3 and 6 kg of /ha. Alfalfa was sown within 1 h from when AG chlordane had been incorporated into the soil to a depth of 10 cm. A high proportion of the 7-chlordane originally applied persisted in the soil at the time of the second cutting, 169 days after application, thereby showing that 7-chlordane is more stable than the a isomer. Insecticide movement through the soil was considerable. The difference between the quantities of a-and 7-chlordane recovered in the analysis from washed and unwashed alfalfa would seem to suggest that an appreciable part is present on the plant surface, possibly in consequence of contamination by particles of treated soil. However, surface contamination is considerably less than the quantity which penetrates into the plant tissues, although the total amount recovered from washed plants is relatively small. Photo-cis-chlordane residues in alfalfa were always below the sensitivity limit (0.001 ppm), while oxychlordane, found only in the second cutting, gave values of 0.001 and 0.002 ppm at dose levels of 3 and 6 kg of Al/ha.AG chlordane, recently developed by the Velsicol Chemical Corp., contains about 95% octachloro-4,7-

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Section: Resultsmentioning

confidence: 91%

Decline and movement of AG chlordane in soil and its residues in alfalfa

Tafuri¹,

Businelli²,

Scarponi³

et al. 1977

J. Agric. Food Chem.

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“…Tal fato não foi observado, supostamente, em decorrência da lixiviação vertical do produto ao longo do perfil do solo e seu acúmulo no fundo dos vasos, com isso, se afastando da zona de absorção radicular, exigindo, pois, dosagens maiores para inibir 50% do crescimento das plantas de sorgo. Esta suposição está de acordo com BALDWIN et al (1985), tendo evidenciado que quando o herbicida prometrine foi aplicado em solo seco e simulou-se chuva, as perdas do herbicida foram de 5% ou menos, da quantidade aplicada. As perdas foram muito superiores nas parcelas nas quais o solo foi molhado, no momento da aplicação.…”

Section: Resultsunclassified

Adsortividade do herbicida "Zeta" em solos de variadas texturas

Moreira

Siqueira

Silva³

1995

Sci. agric. (Piracicaba, Braz.)

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RESUMO: Com o objetivo de estimar a dose do herbicida "Zeta" que inibe 50% d 50 ) do crescimento de plantas bioindicadoras em solos com diferentes texturas e teores de matéria orgânica, podendo estes ter uma influência marcante sobre a bioatividade do herbicida testado, utilizou-se o delineamento experimental inteiramente casualizado com 7 tratamentos (0, 50, 100, 150, 200, 250 e 300 g i.a./ha) e 4 repetições, sendo os tratamentos dispostos em 5 tipos de texturas de solo. Os parâmetros avaliados foram: biomassa fresca total, biomassa seca da parte aérea e biomassa seca do sistema radicular das plantas de sorgo. De acordo com os resultados obtidos pode-se concluir que em solos com textura tendendo à arenosa o herbicida apresenta uma grande mobilidade vertical, e que altos teores de AP+ no solo podem mascarar, de certa forma, a atuação do herbicida na planta. Em linhas gerais, o experimento permitiu inferir que quanto maior os teores de argilas ativas e de matéria orgânica presentes no solo, maior a dose do herbicida requerida para um dado controle percentual de plantas daninhas. Descritores: alumínio, argila, bioatividade, biomassa fresca, biomassa seca, matéria orgânica "ZETA" HERBICIDE ADSORTIVITY IN SOILS OF VARIED TEXTURESABSTRACT: To estimate the herbicide rate which inhibits 50% (I 50 ) of the growth of bioindicator plants in soils of different textures and organic matter levels, which could interfere on the bioactivity of the tested herbicide, a completely randomized experiment was carried out with seven treatments (0, 50, 100, 150, 200, 250 and 300 g a.i./ ha) and four replications, in five kinds of soil textures. The analyzed parameters were: total fresh biomass, dry shoot biomass and dry root biomass of the sorghum plants. According to the results, it can be concluded that in sandy soils the herbicide shows a great vertical mobility, and that high levels of AP+ in the soil can minimize the herbicide effect on plants. The experiment also has shown that the higher the level of active clays and of organic matter in the soil, the higher the rate of herbicide required for a given weed control level.

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“…Prometryn is relatively persistent in waters, soil, and even air near application sites [29]. Significant traces of prometryn have been documented to be remnant in plants used for human and domestic animal consumption [30,31] and some medicinal plants that were protected with prometryn [32]. Prometryn can be found in trace amounts in rat, cow and human milk after the mother might have been in contact with prometryn one way or the other without direct exposure [33][34][35].…”

Section: Discussionmentioning

confidence: 99%

Mitochondrial and Proteasome Dysfunction Occurs in the Hearts of Mice Treated with Triazine Herbicide Prometryn

Sule,

Phinney,

Salemi

et al. 2023

IJMS

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Prometryn is a methylthio-s-triazine herbicide used to control the growth of annual broadleaf and grass weeds in many cultivated plants. Significant traces of prometryn are documented in the environment, mainly in waters, soil, and plants used for human and domestic consumption. Previous studies have shown that triazine herbicides have carcinogenic potential in humans. However, there is limited information about the effects of prometryn on the cardiac system in the literature, or the mechanisms and signaling pathways underlying any potential cytotoxic effects are not known. It is important to understand the possible effects of exogenous compounds such as prometryn on the heart. To determine the mechanisms and signaling pathways affected by prometryn (185 mg/kg every 48 h for seven days), we performed proteomic profiling of male mice heart with quantitative liquid chromatography-tandem mass spectrometry (LC-MS/MS) using ten-plex tandem mass tag (TMT) labeling. The data suggest that several major pathways, including energy metabolism, protein degradation, fatty acid metabolism, calcium signaling, and antioxidant defense system were altered in the hearts of prometryn-treated mice. Proteasome and immunoproteasome activity assays and expression levels showed proteasome dysfunction in the hearts of prometryn-treated mice. The results suggest that prometryn induced changes in mitochondrial function and various signaling pathways within the heart, particularly affecting stress-related responses.

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Prometryn Movement Across and Through the Soil

Cited by 8 publications

References 16 publications

Decline and movement of AG chlordane in soil and its residues in alfalfa

Decline and movement of AG chlordane in soil and its residues in alfalfa

Adsortividade do herbicida "Zeta" em solos de variadas texturas

Mitochondrial and Proteasome Dysfunction Occurs in the Hearts of Mice Treated with Triazine Herbicide Prometryn

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