Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Enhanced Degradation of Residual Cadusafos in Soils by the Microbial Agent of Cadusafos-degrading Sphingobium sp. Cam5-1

미생물제(Sphingobium sp. Cam5-1) 처리에 따른 토양 중 카두사포스의 분해효과

  • Jehyeong Yeon (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Joon-hui Chung (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Han Suk Choi (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Young-Joon Ko (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Dayeon Kim (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Sihyun An (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Jae-Hyung Ahn (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Gui Hwan Han (Center for Industrialization of Agricultural and Livestock Microorganisms) ;
  • Hang-Yeon Weon (Agricultural Microbiology Division, National Institute of Agricultural Sciences, Rural Development Administration)
  • 연제형 (국립농업과학원 농업생물부 농업미생물과) ;
  • 정준휘 (국립농업과학원 농업생물부 농업미생물과) ;
  • 최한석 (국립농업과학원 농업생물부 농업미생물과) ;
  • 고영준 (국립농업과학원 농업생물부 농업미생물과) ;
  • 김다연 (국립농업과학원 농업생물부 농업미생물과) ;
  • 안시현 (국립농업과학원 농업생물부 농업미생물과) ;
  • 안재형 (국립농업과학원 농업생물부 농업미생물과) ;
  • 한귀환 ((재)농축산용 미생물산업육성지원센터) ;
  • 원항연 (국립농업과학원 농업생물부 농업미생물과)
  • Received : 2023.11.06
  • Accepted : 2023.12.07
  • Published : 2023.12.31
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Abstract

Cadusafos, an organophosphorus insecticide, has been commonly used against various pests worldwide. Organophosphorus 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 greenhouse field conditions. Under laboratory conditions, CDMA (106 cfu/g soil application rate) decomposed 97% of Cadusafos in the soil in the untreated control after 21 days. Additionally, when CDMA (106 cfu/g soil) was mixed with quicklime, 99% of Cadusafos was decomposed within 3 days. Under greenhouse field conditions, the combined effect of CDMA (106 cfu/g soil) and quicklime was not observed. However, CDMA (106 cfu/g soil) application alone was capable of decomposing 91% of Cadusafos after 3 days. These results indicate that CDMA can effectively decompose high residual levels of Cadusafos in soils under field conditions using a low inoculum rate.

Keywords

Acknowledgement

This work was supported by the National Institute of Agricultural Sciences, Rural Development Administration, Republic of Korea (Project no. PJ014897).

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