Molecular Monitoring of the Developmental Bacterial Community in the Gastrointestinal Tract of Japanese Infants

Prapa SONGJINDALaboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University

Jiro NAKAYAMALaboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University

Yumiko KUROKILaboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University

Shigemitsu TANAKALaboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University

Sanae FUKUDADepartment of Health Promotion and Human Behavior, Kyoto University Graduate School of Public Health

Chikako KIYOHARADepartment of Preventive Medicine, Division of Social Medicine, Graduate School of Medical Sciences, Kyushu University

Tetsuro YAMAMOTODepartment of Health Promotion and Human Behavior, Kyoto University Graduate School of Public Health;Total Technology Consultant

Kunio IZUCHIIzuchi Hospital

Taro SHIRAKAWADepartment of Health Promotion and Human Behavior, Kyoto University Graduate School of Public Health

Kenji SONOMOTOLaboratory of Microbial Technology, Division of Microbial Science and Technology, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University

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Abstract

The dynamics of the developmental bacterial community in the Japanese neonatal gastrointestinal tract were examined by monitoring 16S ribosomal RNA gene (rDNA) diversity in fecal samples by PCR and denaturing gradient gel electrophoresis (DGGE). The results showed a certain pattern common in infants without antibiotic treatment, in which aerobes, e.g., Pseudomonas, appeared first and were then immediately replaced by facultative anaerobe, Enterococcus, Streptococcus, and Enterobacteriaceae through the first month, and finally strictly anaerobic Bifidobactrerium appeared.

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Molecular Monitoring of the Developmental Bacterial Community in the Gastrointestinal Tract of Japanese Infants

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Molecular Monitoring of the Developmental Bacterial Community in the Gastrointestinal Tract of Japanese Infants

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