Jehyeong Yeon, Joon-hui Chung, Han Suk Choi, Young-Joon Ko, Dayeon Kim, Sihyun An, Jae-Hyung Ahn, Gui Hwan Han, H. Weon
{"title":"Enhanced Degradation of Residual Cadusafos in Soils by the Microbial Agent of Cadusafos-degrading Sphingobium sp. Cam5-1","authors":"Jehyeong Yeon, Joon-hui Chung, Han Suk Choi, Young-Joon Ko, Dayeon Kim, Sihyun An, Jae-Hyung Ahn, Gui Hwan Han, H. Weon","doi":"10.5338/kjea.2023.42.4.39","DOIUrl":null,"url":null,"abstract":"Cadusafos, an organophosphorus insecticide, has been commonly used against various pests worldwide. Org-anophosphorus pesticides have shorter half-lives and lower toxicities than organochlorine pesticides. However, excessive use of Cadusafos can increase pest resistance and issues with acetylcholine biomagnification, potentially resulting in human toxicity. In this study, we investigated the effect of a Cadusafos-degrading microbial agent (CDMA) prepared using Sphingobium sp. Cam5-1, which was previously reported to effectively degrade residual Cadusafos in soil. Experiments were conducted under both controlled laboratory and green-house field conditions. Under laboratory conditions, CDMA (10 6 cfu/g soil application rate) decomposed 97% of Cadusafos in the soil in the untreated control after 21 days. Additionally, when CDMA (10 6 cfu/g soil) was mixed with quicklime, 99% of Cadusafos was decomposed within 3 days. Under greenhouse field conditions, the combined effect of CDMA (10 6 cfu/g soil) and quicklime was not observed. However, CDMA (10 6 cfu/g soil) application alone was capable of decompos-*","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Korean Journal of Environmental Agriculture","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5338/kjea.2023.42.4.39","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Cadusafos, an organophosphorus insecticide, has been commonly used against various pests worldwide. Org-anophosphorus pesticides have shorter half-lives and lower toxicities than organochlorine pesticides. However, excessive use of Cadusafos can increase pest resistance and issues with acetylcholine biomagnification, potentially resulting in human toxicity. In this study, we investigated the effect of a Cadusafos-degrading microbial agent (CDMA) prepared using Sphingobium sp. Cam5-1, which was previously reported to effectively degrade residual Cadusafos in soil. Experiments were conducted under both controlled laboratory and green-house field conditions. Under laboratory conditions, CDMA (10 6 cfu/g soil application rate) decomposed 97% of Cadusafos in the soil in the untreated control after 21 days. Additionally, when CDMA (10 6 cfu/g soil) was mixed with quicklime, 99% of Cadusafos was decomposed within 3 days. Under greenhouse field conditions, the combined effect of CDMA (10 6 cfu/g soil) and quicklime was not observed. However, CDMA (10 6 cfu/g soil) application alone was capable of decompos-*