Visualization and enumeration of bacteria carrying a specific gene sequence by in situ rolling circle amplification

Article Abstract:

Rolling circle amplification (RCA) technique is applied to in situ nucleic acid amplification (in situ RCA) to visualize and count single Escherichia coil cells carrying a specific gene sequence. This method can become a valuable tool for studying free DNA uptake, especially in nonculturable bacteria, by optimizing the cell permeabilization condition for in situ RCA.

Author: Yamaguchi, Nobuyasu, Nasu, Masao, Maruyama, Fumito, Kenzaka, Takehiko, Tani, Katsuji
Escherichia coli, Microbial genetics

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rRNA sequence-based scanning electron microscopic detection of bacteria

Article Abstract:

A new scanning electron microscopic method was developed for gaining both phylogenetic and morphological information about target microbes using in situ hybridization with rRNA-targeted oligonucleotide probes. Target cells were hybridized with oligonucleotide probes after gold labeling.

Author: Yamaguchi, Nobuyasu, Nasu, Masao, Kenzaka, Takehiko, Tani, Katsuji, Ishidoshiro, Ai
Analytical Laboratory Instrument Manufacturing, Analytical instruments, Scanning Microscopy, Usage, Observations, Bacteria, In situ hybridization

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Subjects list: Research, Genetic aspects
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