Advances in soil microbial ecology and the biodiversity

Tsutomu Hattori, Hisayuki Mitsui, Hideki Haga, Norio Wakao, Shuichi Shikano, Krystyna Gorlach, Yasuhiro Kasahara, Adel El-Beltagy, Reiko Hattori

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Recent studies on the colony formation of soil bacteria opened the way to categorize soil bacteria into colony forming curve (CFC) groups of different growth rates. A bacterial culture collection comprising organisms from every CFC group is called an ecocollection (EC). Outlines of ECs of paddy soil 1992 and grassland soil 1987 and 1992 were described. Phylogenetic studies by 16S rDNA sequencing showed a great diversity of culture strains of the ecocollections. A set of alternative concepts was proposed; the active and the quiescent forms of bacterial cells in soil. The former is able to be cultivated and thus counted by the plate method, while the latter is not unless it transforms into the former. Based on the results several points required for extensive cataloguing of soil bacteria were noted.

Original languageEnglish
Pages (from-to)21-28
Number of pages8
JournalAntonie van Leeuwenhoek, International Journal of General and Molecular Microbiology
Issue number1
Publication statusPublished - 1997


  • Colony formation
  • Culture collection
  • Viable count

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology


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