FP5 Factor, an Undescribed Sex Factor of Pseudomonas aeruginosa

Corresponding Author

Hideki Matsumoto

Department of Bacteriology, Faculty of Medicine, Shinshu University, Matsumoto

Please address requests of reprints to Dr. Hideki Matsumoto, Department of Bacteriology, Faculty of Medicine, Shinshu University, 3–1–1 Asahi, Matsumoto 390, Japan.Search for more papers by this author

Tadakatu Tazaki,

Tadakatu Tazaki

Department of Bacteriology, Faculty of Medicine, Shinshu University, Matsumoto

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Hideki Matsumoto,

Corresponding Author

Hideki Matsumoto

Department of Bacteriology, Faculty of Medicine, Shinshu University, Matsumoto

Tadakatu Tazaki,

Tadakatu Tazaki

Department of Bacteriology, Faculty of Medicine, Shinshu University, Matsumoto

Search for more papers by this author

First published: May 1973

https://doi.org/10.1111/j.1348-0421.1973.tb00792.x

Citations: 21

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ABSTRACT

A Pseudomonas aeruginosa, strain Ps5–70 which was mercury-resistant, was found to have a sex factor. This sex factor, designated as FP5 factor, mediated chromosome transfer by conjugation. Crosses between Ps5–70, FP5⁺ and PAO, FP2⁺ strain of Holloway were fertile, and Ps5–70 acted as the donor. Some of the recombinants between FP5⁺ and FP5^– strains displayed maleness, and those recombinants usually acquired mercury resistance. So, transferability of FP5 factor itself and a very close association between the two determinants of FP5, one for fertility and the other for mercury resistance, were proved similar to the FP2 factor. Female sublines of Ps5–70 which behaved as recipients in intrastrain crosses were obtainable from cultures multiplied in the presence of acriflavin. Those females still retained mercury resistance. An R factor originated in P. aeruginosa interfered with the recombinant formation mediated by FP5 factor when the two episomes coexisted within a single cell.

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Volume17, Issue5

May 1973

Pages 409-417

FP5 Factor, an Undescribed Sex Factor of Pseudomonas aeruginosa

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FP5 Factor, an Undescribed Sex Factor of Pseudomonas aeruginosa

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