논문 상세보기

Combined Effects of Temperature and Glyphosate on the Fatty Acid Composition of Collembola

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/287608
모든 회원에게 무료로 제공됩니다.
한국응용곤충학회 (Korean Society Of Applied Entomology)
초록

Climate change is a global phenomenon and has major impacts on ecotoxicology. A variety of environmental variables affected by climate change can alter the fate of chemical and responses of organism. Especially, soil temperature is an important factor in ecotoxicology. Increasing temperature results in an increase in the rate of uptake and degradation of toxic compound. Therefore, the research of temperature effect on toxicity is needed to understand the change of toxic effect under climate change.
In this regards, the response of Paronychiurus kimi (Collembola) to Geunsami™ (glyphosate-based herbicide) were evaluated at different temperatures (20℃, 25℃) and soil aging time (7, 15 days). Survived adults and hatched juveniles were counted after 28-day exposures in artificial soil spiked with 1, 5, 50, 100, 500 mg/kg of glyphosate in different temperature and soil aging time conditions. In addition, we investigated the fatty acid composition of Paronychiurus kimi.
Increasing soil aging time and temperature, EC20 value of P. kimi was increased. Fatty acid composition of P. kimi was similar with that of Folsomia candida mainly composed of 18:1 w9c, 16:0 and 18:0 fatty acids. UI (Unsaturation Index) and the ratio C16/18 of fatty acid composition decreased with increasing temperature. The 18:0 (Stearic acid) fatty acid increased with increasing concentration of glyphosate.

저자
  • June Wee(Division of Environmental Science & Ecological Engineering, Korea University)
  • Yun-Sik Lee(Division of Environmental Science & Ecological Engineering, Korea University)
  • Yongeun Kim(Division of Environmental Science & Ecological Engineering, Korea University)
  • Hyoung-ho Mo(Division of Environmental Science & Ecological Engineering, Korea University)
  • Kijong Cho(Division of Environmental Science & Ecological Engineering, Korea University) Corresponding author