Tohey Matsuyama

Dynamic Aspects of the Structured Cell Population in a Swarming Colony of Proteus mirabilis

Matsuyama, Tohey, Takagi, Yuko, Nakagawa, Yoji, Itoh, Hiroto, Wakita, Junichi, Matsushita, Mitsugu

Proteus mirabilis forms a concentric-ring colony by undergoing periodic swarming. A colony in the process of such synchronized expansion was examined for its internal population structure. In...

Direct Colony Thin-Layer Chromatography and Rapid Characterization of Serratia marcescens Mutants Defective in Production of Wetting Agents

Matsuyama, Tohey, Sogawa, Masakazu, Yano, Ikuya

A bacterial mass (ca. 1 mg) was placed directly on a thin-layer chromatography plate and developed shortly in chloroform-methanol (2:1, vol/vol). After being dried, the bacterial mass was developed...

Growth of Bacteroides fragilis in Rabbit Tracheal Organ Culture: Anaerobiosis and Tissue Respiration

Murakami, Tsukasa, Matsuyama, Tohey, Shiraishi, Setsuko, Hagihara, Bunji

Rabbit tracheal explants supporting growth of inoculated Bacteroides fragilis in air were shown to keep low oxygen tension. Treating the explants with sodium azide induced high oxygen tension and...

Factors Influencing the Ability of Listeria monocytogenes To Pass through a Membrane Filter by Active Infiltration

Nakazawa, Kentaro, Hasegawa, Hiroyuki, Nakagawa, Yoji, Terao, Michinori, Matsuyama, Tohey

Listeria monocytogenes infiltrated the reticulate structure of a membrane filter and passed through a filter with pore sizes of 0.45 μm and 0.2 μm in 6 to 24 h and 5 to 6 days, respectively....

Dynamic Aspects of the Structured Cell Population in a Swarming Colony of Proteus mirabilis

Matsuyama, Tohey, Takagi, Yuko, Nakagawa, Yoji, Itoh, Hiroto, Wakita, Junichi, Matsushita, Mitsugu

Proteus mirabilis forms a concentric-ring colony by undergoing periodic swarming. A colony in the process of such synchronized expansion was examined for its internal population structure. In...

Direct Colony Thin-Layer Chromatography and Rapid Characterization of Serratia marcescens Mutants Defective in Production of Wetting Agents

Matsuyama, Tohey, Sogawa, Masakazu, Yano, Ikuya

A bacterial mass (ca. 1 mg) was placed directly on a thin-layer chromatography plate and developed shortly in chloroform-methanol (2:1, vol/vol). After being dried, the bacterial mass was developed...

Growth of Bacteroides fragilis in Rabbit Tracheal Organ Culture: Anaerobiosis and Tissue Respiration

Murakami, Tsukasa, Matsuyama, Tohey, Shiraishi, Setsuko, Hagihara, Bunji

Rabbit tracheal explants supporting growth of inoculated Bacteroides fragilis in air were shown to keep low oxygen tension. Treating the explants with sodium azide induced high oxygen tension and...

Factors Influencing the Ability of Listeria monocytogenes To Pass through a Membrane Filter by Active Infiltration

Nakazawa, Kentaro, Hasegawa, Hiroyuki, Nakagawa, Yoji, Terao, Michinori, Matsuyama, Tohey

Listeria monocytogenes infiltrated the reticulate structure of a membrane filter and passed through a filter with pore sizes of 0.45 μm and 0.2 μm in 6 to 24 h and 5 to 6 days, respectively....

Detection and avoidance of a natural product from the pathogenic bacterium Serratia marcescens by Caenorhabditis elegans

Pradel, Elizabeth, Zhang, Yun, Pujol, Nathalie, Matsuyama, Tohey, Bargmann, Cornelia I., Ewbank, Jonathan J.

The nematode Caenorhabditis elegans is present in soils and composts, where it can encounter a variety of microorganisms. Some bacteria in these rich environments are innocuous food sources for C....