NGHIÊN CỨU ĐA DẠNG VI KHUẨN OXY HÓA Fe (II), khử NO3- TẠI MỘT SỐ MÔI TRƯỜNG SINH THÁI Ở VIỆT NAM
NGHIÊN CỨU ĐA DẠNG VI KHUẨN OXY HÓA Fe (II), khử NO3- TẠI MỘT SỐ MÔI TRƯỜNG SINH THÁI Ở VIỆT NAM Authors: Nguyễn Thị Tuyền Đinh Thúy Hằng Keywords: Fe(II)-oxidizing;NO3- reducing bacteria;DGGE;ARDRA;Anaeromyxobacter;Paracoccus;Pseudomonas;16S rDNA Issue Date: 2009 Publisher: Tạp chí Công nghệ Sinh học Series/Report no.: Tạp chí Công nghệ Sinh học;7(3) Abstract: Fe(II)-oxydizing NO3--reducing bacteria in sediment samples collected from freshwater aquifer, flooded paddy soil and estuarine area were quantified and analysed on species composition. The MPN results showed that among the three studied environments, flooded paddy soil had the highest number of these bacteria (9.3 • 103.g-1), five and two times higher than that of freshwater aquifer and estuarine sediment, respectively. Based on distinguish colony characteristics, 12 strains of Fe(II)-oxidizing, NO3-- reducing bacteria were isolated from MPN series and were set into five geneti...