Long Term Monitoring of Bacterial Community Succession in Septic Tank by Denaturing Gradient Gel Electrophoresis of 16S rRNA Gene Fragments

DOI Web Site Web Site 34 References
  • KOIZUMI Yoshikazu
    Tamagawa Gakuen Branch, Environmental Engineering Center Co., Ltd. Applied Life Science Research Center, Tamagawa University Research Institute
  • MIZUTANI Atsushi
    Faculty of Agriculture, Tamagawa University
  • MITSUI Ayako
    Tamagawa Gakuen Branch, Environmental Engineering Center Co., Ltd.
  • YOSHIMURA Yoshitaka
    Faculty of Agriculture, Tamagawa University
  • FUKUI Manabu
    The Institute of Low Temperature Science, Hokkaido University

Bibliographic Information

Other Title
  • 浄化槽の処理プロセスにおける真正細菌群集の変性剤濃度勾配ゲル電気泳動法による長期間モニタリング
  • ジョウカソウ ノ ショリ プロセス ニ オケル シンセイ サイキン グンシュウ ノ ヘンセイザイ ノウド コウバイ ゲル デンキ エイドウホウ ニ ヨル チョウキカン モニタリング

Search this article

Abstract

The long-term succession of bacterial communities in a medium-scale septic tank was monitored by the denaturing gradient gel electrophoresis (DGGE) of amplified 16S rDNA fragments. The calculation of diversity indices from DGGE profiles indicated that the bacterial diversity in the aeration tank was significantly higher than those in the other tanks studied. Ten of the 23 sequenced DGGE bands were affiliated with beta-proteobacteria and some of these bacteria were prominent. Clustering analysis of the DGGE banding pattern revealed that spikes in feed strength caused significant changes in community structure in the raw water and aeration tanks. Dendrogram construction using the DGGE profiles of the aeration tank showed that the bacterial community structure changed by direct inputs of organic waste matter returned to the original stable community structure over time. The specification of bacteria that mainly affect the succession of the indigenous bacterial community structure was facilitated by the dendrogram construction from DGGE profiles.

Journal

References(34)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top