[Effects of Bt toxin Cry1Ac on biochemical responses of Eisenia fetida in an artificial soil].
Bt toxin Cry1Ac could be introduced into soil by pollen, root exudates, and plant residues. To investigate its toxic effects, the Bt toxin was added into an earthworm-cultured artificial soil, and the survival, growth rate, sperm count, protein content, and activities of acetylcholinesterase (AchE), catalase (CAT), glutathione S-transferase (GST) and cellulase in Eisenia fetida were determined. The results suggested that Bt toxin Cry1Ac had little effects on the biomass and physiological characteristics of E. fetida, with no acute and subchronic toxicity, and was safe for earthworm at field dose level.
Xiao
Nengwen
N
State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China. xiaonw@ioz.ac.cn
Ge
Feng
F
Liu
Xianghui
X
D000818:Animals; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000235:genetics*; D001427:Bacterial Toxins / Q000235:genetics*; D004731:Endotoxins / Q000235:genetics; D006460:Hemolysin Proteins; D009835:Oligochaeta / Q000502:physiology*; D010572:Pest Control, Biological; D030821:Plants, Genetically Modified; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology
D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004731:Endotoxins; D006460:Hemolysin Proteins; D012987:Soil; C030956:insecticidal crystal protein, Bacillus Thuringiensis