• 제목/요약/키워드: vinclozolin

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Microbial Biodegradation and Toxicity of Vinclozolin and its Toxic Metabolite 3,5-Dichloroaniline

  • Lee, Jung-Bok;Sohn, Ho-Yong;Shin, Kee-Sun;Kim, Jong-Sik;Jo, Min-Sub;Jeon, Chun-Pyo;Jang, Jong-Ok;Kim, Jang-Eok;Kwon, Gi-Seok
    • Journal of Microbiology and Biotechnology
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    • 제18권2호
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    • pp.343-349
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    • 2008
  • Vinclozolin, an endocrine disrupting chemical, is a chlorinated fungicide widely used to control fungal diseases. However, its metabolite 3,5-dichloroaniline is more toxic and persistent than the parent vinclozolin. For the biodegradation of vinclozolin, vinclozolin- and/or 3,5-dichloroaniline-degrading bacteria were isolated from pesticide-polluted agriculture soil. Among the isolated bacteria, a Rhodococcus sp. was identified from a 16S rDNA sequence analysis and named Rhodococcus sp. T1-1. The degradation ratios for vinclozolin or 3,5-dichloroaniline in a minimal medium containing vinclozolin $(200{\mu}ml)$ or 3,5-dichloroaniline $(120{\mu}g/ml)$ were 90% and 84.1%, respectively. Moreover, Rhodococcus sp. T1-1 also showed an effective capability to biodegrade dichloroaniline isomers on enrichment cultures in which they were contained. Therefore, these results suggest that Rhodococcus sp. T1-1 can bioremediate vinclozolin as well as 3,5-dichloroaniline.

영지 노랑병 방제에 효과적인 살균제의 선발 (Selection of Effective Fungicides Against Xylogone sphaerospora, a Fungal Pathogen of Cultivated Mushroom, Ganoderma lucidum)

  • 최경자;이종규;우성희;조광연
    • 한국식물병리학회지
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    • 제14권5호
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    • pp.491-495
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    • 1998
  • A fungal disease of the cultivated mushroom, Ganoderma lucidum, caused by Xylogone sphaerospora was epidemic throughout all cultivation areas in Korea which caused a lot of yield losses in the mushroom production. For controlling the disease, the screening of effective fungicides against the pathogenic fungus were conducted. Thirty seven commercially available fungicides were tested for their inhibitory activities on potato dextrose agar media supplemented with these fungicides at various concentrations. Twenty one fungicides significantly inhibited mycelial growth of the pathogen, Xylogone sphaerospora, but 16 fungicides had no inhibitory effect. Among these 21 fungicides, 17 fungicides also inhibited mycelial growth of Ganoderma lucidum as well, but imazalil, procymidone, triforine, and vinclozolin had no inhibitory effects. However, vinclozolin showed no inhibitory effect on mycelial growth of the mushroom even at the concentration of 50 $\mu\textrm{g}$/ml vinclozolin solution for 2 hours, and then the pathogen was inoculated. After two month-cultivation of the mushroom, over 90% of logs treated with vinclozolin without pathogen inoculation produced fruiting bodies. However, fruiting bodies were not produced form the logs inoculated with the pathogen, but not treated with vinclozolin. Fifty seven percent of logs. which were pre-treated with vinclozolin and then inoculated with the pathogen produced fruiting bodies. Based on the results, vinclozolin is effective for the control of yellow disease of the Ganoderma lucidum caused by Xylogone sphaerospora.

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무용매 고체 시료 주입기(SFSI)를 이용한 작물 중 잔류농약의 기체크로마토그래피 분석법 개발 (Development of the analytical method for pesticide residues in crops by using gas chromatograph / solvent free solid injector (GC / SFSI))

  • 김미라;이연;박병준;최주현;김인선;심재한
    • 농약과학회지
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    • 제9권3호
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    • pp.237-242
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    • 2005
  • SFSI (Solvent free solid injector)를 이용하여 추출과 정제과정이 필요없는 신속한 농약잔류분석법을 개발하고, 이 분석법의 실효성 여부를 확인하고자 내분비계장애추정농약으로 알려진 endosulfan, metribuzin, trifluralin, 그리고 vinclozolin의 작물 중 잔류양상을 분석하였다. SFSI에 주입된 시료는 동결건조 후 사용하였으며, SFSI에서 시료의 충분한 기화를 위한 pre-heating time을 조사한 결과 endosulfan과 trifluralin은 1 분, metribuzin은 10 분, vinclozolin은 5 분이었다. 또한 농약들의 최소검출량은 endosulfan, metribuzin, trifluralin 그리고 vinclozolin에서 각각 0.05, 0.1, 0.05, 0.05 ng이었다. 분석대상농약의 작물별 회수율은 배추 중 endosulfan은 74%, 상추 중 metribuzin은 $98{\sim}107%$, 시금치 중 trifluralin은 $86{\sim}95%$, 그리고 고추 중 vinclozolin은 $94{\sim}95%$이었다. 현장시료에 적용해 본 결과 상추에서 metribuzin이 0.6 ng/mg 수준으로 검출되었다.

서울북부지역에서 유통되고 있는 농작물의 잔류농약 분포 (The Distribution of Pesticide Residues in Commercial Agricultural Products for the Northern Area of Seoul)

    • Environmental Analysis Health and Toxicology
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    • 제18권4호
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    • pp.311-322
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    • 2003
  • This study was carried out to investigate the 106 kinds of pesticide residues in agricultural products (n=3,614) by GC, for the northern area of Seoul from March (1999) to December (2000). The detection rate of pesticide residues in samples was 5.0% (mean =2.86$\pm$7.22 mg/kg, n=180). The order of the agricultural products in which pesticide residues were detected was korean lettuce > perilla leaf, pepper > chinese cabbage > leek > spinach. The percentage of the agricultural products in excess of MRL was 2.0% (n=73). The agricultural products in excess of MRL were korean lettuce (n=15), perilla leaf(n=13), leek (n=6), spinach (n=6), pepper (n=5), chwinamul (n=5), etc. The order of the pesticide residues which were detected in agricultural products was procymidone endosulfan chlorpyrifos vinclozolin chlorothalonil and diazinon. The average residual values of procymidone, endosulfan, chlorpyrifos, vinclozolin, chlorpyrifos, and diazinon were 4.07, 1.24, 1.27, 2.83, 17.71 and 1.48 respectively. The pesticide residues in excess of MRL were chlorpyrifos (n=19), endosulfan (n=12), procymidone(n=), vinclozolin (n=6), etc, and the measured concentration ranges of chlorpyrifos, endosulfan, procymidone, vinclozolin, pyrazophos, diazinon and EPN were 0.03-6.72, 0.18-5.8, 2.0-60.8, 1.70-20.33, 0.26-1.21. 0.59-4.3 and 0.28-4.19 respectively.

시설재배(施設栽培) 딸기 포장(圃場)에서 Dicarboximide 계(系) 약제저항성(藥劑抵抗性) 잿빛곰팡이병균(病菌)의 발생(發生) (Occurrence of Botrytis cinerea Resistant to Dicarboximide Fungicides on Strawberries in Greenhouses)

  • 유승헌;박정헌
    • 농업과학연구
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    • 제19권2호
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    • pp.170-178
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    • 1992
  • 1990년도 전국의 시설재배 딸기 포장에서 잿빛곰팡이병균(Botrytis cinerea)을 분리하여 dicarboximide약제 저항성정도를 조사하였다. 공시한 잿빛곰팡이병균 9개 균주를 공시하여 dicarboximide계 약제인 procymidone과 vinclozolin을 각각 100, 400, $1,600{\mu}g/ml$씩 함유하는 PDA배지에서 배양할 경우 균사생장을 보여주는 저항성 균주는 5개 균주였다. 약제저항성균주에 대한 dicarboximide계 약제의 균사생육가능최저농도(MIC)는 $6,400{\mu}g/ml$이상이었으며 감수성균의 MIC는 1.56 또는 $6.25{\mu}g/ml$이하였다. Dicarboximide계 약제를 함유하는 PDA배지에서 잿빛곰팡이병균의 분생포자를 발아시킬 경우 약제저항성균주는 90% 이상의 높은 발아율을 보여준 반면에 감수성균주는 전혀 발아하지 못하거나 5% 이하의 매우 낮은 발아율을 보여주었다. Procymidone 저항성균은 vinclozolin에 교차저항성을 나타내었으나 dichlofluanid 에는 교차저항성이 인정되지 않았다. Procymidone 및 vinclozolin에 저항성인 모든 균주와 감수성인 균주중 일부가 benomyl에도 저항성을 나타내었다. 전국의 시설재배 딸기 포장에서 분리한 B. cinerea 223개 균주중에서 dicarboximide계 약제저항성균주의 비율은 40%였고, 이들 저항성균은 전국적으로 고르게 분포하고 있었다.

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월동 복숭아 미이라 과일과 과병으로부터 분리한 Monilinia fructicola의 Benzimidazole과 Dicarboximide계 살균제에 대한 저항성 밀도 (Incidence of Benzimidazole- and Dicarboximide Resistant Isolates of Monilinia fructicola from Overwintering Mummies and Peduncles on Peach trees)

  • 임태헌;장태현;차병진
    • 한국식물병리학회지
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    • 제14권4호
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    • pp.367-370
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    • 1998
  • Monilina fructicola, the brown rot fungus of stone fruits, was isolated from overwintering mummies and peduncles on peach trees from February to March, 1998. The resistant population of these isolates to benzimidazole (benomyl, carbendazim and thiophanate-methyl) and dicarboximide (iprodione, vinclozolin and procymidone) was examined. Among 417 isolates, the incidence of isolates resistant to benomyl, carbendazim, and thiophanate-methyl were 45 (10.8%), 47 (11.3%), and 46 (11.0%), respectively. Forty two (10.0%) isolates showed cross-resistance to benzimidazole fungicides. On the other hand, the resistant isolates against iprodione, vinclozolin and procymidone were 186 (44.6%), 1 (0.2%) and 150 (36.0%), respectively. Among the isolates, 116 (27.8%) showed cross-resistance to iprodione and procymidone. Moreover, 27 (6.5%) of 417 isolates showed double-resistance to both benzimidazole (benomyl) and dicarboximide (iprodione).

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서울시내 유통 농산물에서의 농약잔류 실태 (Current status on pesticide residues in commercial agricultural commodities in Seoul area)

  • 한선희
    • 한국환경독성학회:학술대회논문집
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    • 한국환경독성학회 2003년도 추계국제학술대회
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    • pp.49-53
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    • 2003
  • Through the five years analysis of monitoring data on pesticide residues from 1998 to 2002, current status on pesticide residues on commercial agricultural products in Seoul area was evaluated. The rate of over maximum residue limits(MRLs) has been decreased into 5.8% in 1998, 2.5% in 1999, 1.6% in 2000, 1.4% in 2001, and 1.5% in 2002 gradually, where as total sample numbers analyzed increased 1,300 in 1998, 4,200 in 1999, 5740 in 2000, 6,160 in 2001, and 5,440 in 2002 annually, The pesticide which frequently detected in samples were endosulfan, procymidone, chlorotalonil, vinclozolin, and chlorpyriphos and pesticide found over MRLs were procymidone, vinclozolin, endosulfan and etc.

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고체상 추출법과 GC/MS를 이용한 포도주 중의 fungicides 정량 (Determination of fungicides in wines by solid-phase extraction and gas chromatography with mass selective detection)

  • 박교범;이석근
    • 분석과학
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    • 제16권6호
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    • pp.438-442
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    • 2003
  • 본 연구에서는 우리나라에서 시판되고 있는 국내 및 외제 와인에 대하여 vinclozolin, dichlofluanid, penconazole, procymidone 등의 살균제 잔류함량을 고체상 추출법을 이용한 GC/MS-SIM 방법으로 정량 하였다. 분석결과 모든 시료에서 procymidone의 함량이 $2.2-76.1{\mu}g/L$가 검출되었고, 회수율은 81.3-93.1 %, 표준편차는 1.4-3.4 %로 나타났다.

HepG2 인간 세포주, Lumbricus rubellus 및 Saccharomyces cerevisiae를 이용한 내분비교란물질의 독성평가 (Toxicity Evaluation of Endocrine Disrupting Chemicals Using Human HepG2 Cell Line, Lumbricus rubellus and Saccharomyces cerevisiae)

  • 손호용;김홍주;금은주;조민섭;이중복;김종식;권기석
    • 생명과학회지
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    • 제16권6호
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    • pp.919-924
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    • 2006
  • 다양한 독성물질 및 이들의 대사산물의 효율적인 생물독성 평가시스템이 지속적으로 개발되고 있다. 본 연구에서는 대분비계 교란물질인 endosulfan, bisphenol A, vinclozolin 및 3,5-dichloroaniline을 대상으로 인간 간암세포주, 지렁이, 효모를 이용한 세포독성 및 성장억제 효과를 평가하였다. 인간 간암세포주 독성평가에서는 endosulfan, 3,5-dichloroaniline, bisphenol A의 순으로 독성이 나타났으며, 지렁이 독성평가에서는 endosulfan, bisphenol A, 3,5-dichloroaniline의 순으로 독성이 나타났다. 효모를 이용한 독성평가에서는 3,5-dichloroaniline, endosulfan, bisphenol A의 순으로 독성이 나타나 다른 시스템과는 부분적인 차이가 나타났으며, vinclozolin의 경우 3가지 독성평가 시스템에서 모두 독성이 나타나지 않았다. 이러한 결과는, 동일한 물질을 서로 다른 생물 독성평가 시스템을 사용하여 평가하는 경우, 부분적인 오류가 나타날 수 있음을 암시하고 있으며, 독성 유무 판단은 가능하더라도, 독성 정량평가 및 독성 정도를 비교하는 것은 어렵다는 것을 제시하고 있다. 또한 본 결과는, 다양한 물질 및 이들의 대사산물의 일차적 독성평가에는 지렁이 및 효모시스템이 빠르고 경제적임을 암시하고 있으며, 독성이 인정될 경우 인간세포주 및 동물시험에 의한 검증이 효율적이라고 판단된다.