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구석진(Suk-jin Koo),이종윤(Zong-Yun Lee),박철범(Cheol-Beom Park) 한국농약과학회 2011 농약과학회지 Vol.15 No.4
We investigated the mutagenicity of methiozolin, newly developed herbicide, in vitro reverse mutation test using Salmonella typhimurium and Escherichia coli, chromosome aberration test using Chinese hamster lung (CHL) cells and in vivo micronucleus test of mice. In the reverse mutation test, the methiozolin did not induce mutagenicity in Salmonella typhimurium TA98, TA100, TA1535, TA1537, Escherichia coli WP2uvrA with and without metabolic activation at 5,000 ㎍/plate. In the chromosome aberration test, the results showed no incidence of increased structural and numerical chromosome abberrations at any doses tested (80, 40, 20 fig /mL). In micronucleous test, the ratio of micronuclei was measured in polychromatic erythrocytes with treated methiozolin for ICR mice. No incidence of increased micronuclei were observed in polychromatic erythrocytes (1,500, 1,000, 500 mg/kg). Based on these results, we concluded that methiozolin has no mutagenic toxicity in vitro and in vivo systems.
신규 잔디 제초제 메티오졸린(methiozolin) 개발
구석진(Suk-Jin Koo),황기환(Ki-Hwan Hwang),전만석(Man-Seok Jeon),김성헌(Sung-Hun Kim),임종수(Jongsoo Lim),이동국(Dong-Guk Lee),정근회(Kun-Hoe Chung),고영관(Young-Kwan Ko),류재욱(Jae-Wook Ryu),구동완(Dong-Wan Koo),우재춘(Jae-Chun Woo) 韓國雜草學會 2010 Weed&Turfgrass Science Vol.30 No.4
Methiozolin (5-(2,6-difluoro-benzyloxymethyl)-5-methyl-3-(3-methyl- thiophen-2-yl)- 4,5-dihydro-isoxazole) is a new turf herbicide in isoxazoline chemistry. The herbicide controls grass weeds and has a high safety to various cool and warm season turfgrasses. This paper describes basic chemical, biological, and regulatory information of methiozolin.
구석진(Suk-jin Koo),권민(Min Kwon),박철범(Cheol-Beom Park) 한국농약과학회 2011 농약과학회지 Vol.15 No.4
We investigated methiozolin acute toxicity using with Sprague-Dawley rats. The results of acute oral toxicity using rats showed LD<SUB>50</SUB> value of over 2,000 mg/kg bw for methiozolin. The calculate acute dermal LD<SUB>50</SUB> value of methiozolin was over 4,000 mg/kg. The skin irritation test showed moderately irritation and weak response of eye irritation test was observed in this experimental condition. According to these results, We concluded that methiozolin was Category IV in GHS chemical classification for acute toxicity. Future, we need more chronic toxicity test for safety.