http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Prochloraz 와 Triadimefon 의 사과나무 부란병균(腐爛病菌)에 대한 작용기작(作用機作)
이동진,홍종욱,김장억 한국농화학회 1989 Applied Biological Chemistry (Appl Biol Chem) Vol.32 No.3
In order to elucidate the action mechanism of prochloraz and triadimefon, the mycelia of the Valsa ceratosperma were treated with the compounds in vitro. Analysis by GLC of the sterol extract from Valsa ceratosperyna mycelia revealed one major peak and two minor peaks. Their relative retention time(RRT) relative to chloresterol were 1.29, 1.48 and 1.82, The compounds with RRT 1.29 and RRT 1.82 were identified as ergosterol and 24-methylenedihydrolanosterol by GC/MS, respectively. Five ppm of prochloraz and triadimefon applied to mycelia caused decrease in ergosterol content, whereas increase in 24-methylenedihydrolanoserol content in mycelia. The longer treatment time and the higher concentrations of the chemicals resulted in the greater decrease in ergosterol and the greater increase in 24-methylenedihydrolanosterol. Based on the analysis, it is considered that the two chemicals inhibit the ergosterol biosynthesis in Valsa ceratosperma by blocking C-14 demethylation as found previously in other fungi arid yeasts.
土壤環境中 Trifluralin의 分解에 關한 硏究 - 第2報
李東秀,洪鍾旭,金政鎬 慶北大學校 1987 農業科學技術硏究所報 Vol.4 No.-
除草劑 Trifluralin을 土壤에 處理하고 分解에 미치는 主要 因子들로서 藥劑의 濃度, 紫外線照射, 휘발 等의 影響을 調査하여 얻은 結果를 要約하면 다음과 같다. 紫外線 照射에 依한 Trifluralin 의 分解는 매우 빨라서 42日後에는 98%以上이 分解되었으며 揮發에 依한 藥劑의 消失도 아주 큰 것으로 나타났다. 낮은 농도보다 높은 농도에서 분해가 빠르게 나타났다. 또한 Trifluralin 의 휘발성은 토양에서 소실의 중요한 요인이 되었다. This study was carried out to investigate the effects of some soil factors on the degradation of Trifluralin (α·α·α-trifluoro-2.6-dinitro-Ν,Ν,-dipropyl-p-toluidine) 7days interval within 70 days under the laboratory condition. The results obtained are summarized as follows. The degradation was observed to be more rapid in high concentration than in low concentration. When trifluralin was exposed to ultraviolet light the dissipation was very highly increased, within 40 days 98% of the original 4ppm trifluralin was dissipated. The volatilization of trifluralin from soil has been shown to be an important mode of dissipation.
박동기,주현규,김연욱 한국농화학회 1991 Applied Biological Chemistry (Appl Biol Chem) Vol.34 No.3
In the present investigation we have studied the effect of bear's gall on mammalian cells and demonstrated that COS-7 cells, which were derived Monkey kidney cells, had shown almost same extent of growth with 78 hrs in 10% FCS Dulbecco's Modified Eagle's medium with bear's gall and without bear's gall. But the hybridoma cells which were fused murine myeloma cells and the rat spleen cells for monoclonal antibody production died almost within 48 hrs. To investigate the effect of biosynthetic mechanism, cDNA were transfected to COS-7 cells, and it was shown that cDNA-transfected COS-7 cell had produced 30-40% less the amount of recombinant protein than the medium without bear's gall.