光合细菌PSB07-15对水培黄瓜体系中甲氰菊酯污染的生物修复  

Bioremediation of Fenpropathrin by Photosynthetic Bacterial Strain PSB07-15 in Hydroponic System for Cucumber Culture

作　　者：张松柏[1,2] 张德咏[1,2] 刘勇[1,2] 罗香文 成飞雪 罗源华 

机构地区：[1]中南大学研究生院隆平分院,湖南长沙410125 [2]湖南省植物保护研究所,湖南长沙410125

出　　处：《农业环境科学学报》2009年第10期2198-2203,共6页Journal of Agro-Environment Science

基　　金：国家"863"计划项目(2006AA10Z401);国家"十一五"科技支撑计划项目(2006BAD17B08;2006BAD08A08);湖南省农村科技计划重点项目(2008NK2009)

摘　　要：为了探索光合细菌PSB07-15降解甲氰菊酯的应用潜力,在实验室研究了光合细菌PSB07-15对水培黄瓜体系中的甲氰菊酯污染的生物修复效率。结果表明,培养30d,光合细菌PSB07-15对黄瓜营养液中100mg·L-1甲氰菊酯降解率达到47.63%,黄瓜中甲氰菊酯降解率达59.73%。光合细菌PSB07-15可以使黄瓜的根长和生物量显著增加,而黄瓜的根活力以及根H2O2酶活力增加并不显著。The bioremediation efficiency of fenpropathirn by photosynthetic bacterial strain PSB07-15 in hydroponic cucumber system was evaluated in lab, for actual potential application of bioremediation by photosynthetic bacterium. The results showed that the strain PSB07-15 could degrade fenpropathrin effectively in hydroponic system. Fenpropathrin was degraded up to 47.63% at the level of 100 mg·L-1 by the strain PSB07-15 in hydroponics nutrient solution and degraded up to 59.73% in cucumber at day 30. The strain PSB07-15 significantly enhanced root-length increment and biomass increment but not the root activity value and root catalase activity value of cucumber. The results indicated this strain PSB07-15 may have an important role in bioremediation in agricultural practice.

关 键 词：甲氰菊酯 沼泽红假单孢菌PSB07—15 水培黄瓜 生物修复 

分 类 号：X172[环境科学与工程—环境科学]