Environmental fate and effects of chlorothalonil: A Canadian perspective

Caux, Pierre-Yves; Kent, Robert A.; Fan, Guangping; Stephenson, Gerald R.

doi:10.1080/10643389609388486

Cited by 172 publications

(101 citation statements)

References 35 publications

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“…Chlorothalonil is a widely applied organochlorine nonsystemic fungicide in rural and urban environments. It inhibits important cellular enzymes (i.e., NADPH oxidase) by binding to the sulphydryl groups altering metabolic functions in cellular respiration (Caux et al 1996). It also depletes glutathione (GSH), a non-enzymatic reducing agent involved in cell detoxification (Tillman et al 1973).…”

Section: Abstract Behavioral Responses á Daphnia Magna á Toxic Characmentioning

confidence: 99%

Behavioral Responses of Daphnia Magna to Stresses of Chemicals with Different Toxic Characteristics

Ren

et al. 2008

Bull Environ Contam Toxicol

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Behavior of an organism is affected by exposure to toxic chemicals. However, less has been known about behavioral responses of an organism to stresses of toxic chemicals with different toxic characteristics. In present work, Daphnia magna Straus was exposed to gradient concentrations of deltamethrin, chlorothalonil and nitrofen and the behavioral changes of Daphnia magna under different stress were examined. The results showed that the behavioral responses of Daphnia magna to the tested chemicals were affected in general by exposure concentration, rather than toxic characteristics of the chemicals. The duration of avoidance response (DAR) was in a power regression relationship with the toxic unit (TU), defined as the ratio of exposure concentration of the tested chemical to its LC . DAR was independent of the toxic characteristics of chemicals. However, significant behavior adjustment could be observed after exposure to deltamethrin while only step-by-step decrease in behavior strength could be observed when exposed to chlorothalonil and nitrofen. It was suggested from the observation that avoidance behaviors of Daphnia magna to exposures of chemicals with different toxic characteristics could be similar, while their specific response could be different.

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Section: Abstract Behavioral Responses á Daphnia Magna á Toxic Characmentioning

confidence: 99%

Behavioral Responses of Daphnia Magna to Stresses of Chemicals with Different Toxic Characteristics

Ren

et al. 2008

Bull Environ Contam Toxicol

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“…Chlorothalonil is highly toxic to fish, birds and aquatic invertebrates (Caux et al, 1996) and is commonly detected in ecosystems (Kazos et al, 2008). During the isolation of chlorothalonil-degrading micro-organisms, a bacterial strain (designated CTN-1 T ) capable of efficiently degrading chlorothalonil without the presence of other carbon sources was characterized from a long-term chlorothalonil-contaminated soil at the Jiangyin Suli Chemical Co., Ltd (Jiangsu, China).…”

mentioning

confidence: 99%

Lysobacter ruishenii sp. nov., a chlorothalonil-degrading bacterium isolated from a long-term chlorothalonil-contaminated soil

Wang

Chen

et al. 2011

International Journal of Systematic and Evolutionary Microbiology

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An aerobic, Gram-negative bacterial strain, designated CTN-1 T , capable of degrading chlorothalonil was isolated from a long-term chlorothalonil-contaminated soil in China, and was subjected to a polyphasic taxonomic investigation. Strain CTN-1 T grew at 15-37 6C (optimum 28-30 6C) and at pH 6.0-9.0 (optimum pH 7.0-7.5). The G+C content of the total DNA was 67.1 mol%. Based on 16S rRNA gene sequence analysis, strain CTN-1 T was related most closely to Lysobacter daejeonensis DSM 17634 T (97.1 % similarity), L. soli DCY21 T (95.7 %), L. concretionis Ko07 T (95.5 %), L. gummosus LMG 8763 T (95.3 %) and L. niastensis DSM 18481 T (95.2 %). The novel strain showed less than 95.0 % 16S rRNA gene sequence similarity to the type strains of other Lysobacter species. The major cellular fatty acids of strain CNT-1 T were iso-C 16 : 0 (23.0 %), iso-C 15 : 0 (21.4 %) and iso-C 17 : 1 v9c (15.3 %). The major isoprenoid quinone was Q-8 (99 %), and the major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. These chemotaxonomic data supported the affiliation of strain CTN-1 T to the genus Lysobacter. Levels of DNA-DNA relatedness between strain CTN-1 T and L. daejeonensis DSM 17634 T were 34.6-36.1 %. Phylogenetic analysis based on 16S rRNA gene sequences, DNA-DNA hybridization data and biochemical and physiological characteristics strongly supported the genotypic and phenotypic differentiation of strain CTN-1 T from recognized species of the genus Lysobacter. Strain CTN-1 T is therefore considered to represent a novel species of the genus Lysobacter, for which the name Lysobacter ruishenii sp. nov. is proposed. The type strain is CTN-1 T (5DSM 22393 T 5CGMCC 1.10136 T ).

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“…Chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile), a broadspectrum chlorinated aromatic fungicide, is the second most widely used agricultural fungicide in the United States, with 5 million kilograms applied annually (9). Chlorothalonil is highly toxic to fish, birds, and aquatic invertebrates (6) and is commonly detected in ecosystems (18). The bacterial strain Pseudomonas sp.…”

mentioning

confidence: 99%

A Novel Hydrolytic Dehalogenase for the Chlorinated Aromatic Compound Chlorothalonil

Wang

et al. 2010

J Bacteriol

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Environmental fate and effects of chlorothalonil: A Canadian perspective

Cited by 172 publications

References 35 publications

Behavioral Responses of Daphnia Magna to Stresses of Chemicals with Different Toxic Characteristics

Behavioral Responses of Daphnia Magna to Stresses of Chemicals with Different Toxic Characteristics

Lysobacter ruishenii sp. nov., a chlorothalonil-degrading bacterium isolated from a long-term chlorothalonil-contaminated soil

A Novel Hydrolytic Dehalogenase for the Chlorinated Aromatic Compound Chlorothalonil

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