Bacteriophage Lambda as a Delivery Vector for Tn 10 -Derived Transposons in Xenorhabdus bovienii

Author:

Francis Matthew S.1,Parker Angela F.1,Morona Renato1,Thomas Connor J.1

Affiliation:

1. Department of Microbiology and Immunology, University of Adelaide, G.P.O. Box 498, Adelaide, South Australia, Australia, 5001

Abstract

Xenorhabdus bovienii wild-type strains lack a functional receptor protein (LamB) in the outer membrane and as a result are unable to adsorb coliphage lambda (λ). Introduction of plasmids encoding lamB into X. bovienii T228 results in constitutive expression of LamB in the outer membrane of this organism. LamB-expressing strains of X. bovienii adsorb lambda bacteriophage particles and can be used as hosts for lambda::Tn constructs. A Tn 10 -derived transposon, element 9 (J. C. Way, D. Davis, D. Morisato, D. E. Roberts, and N. Kleckner, Gene 32:369-379, 1984) was used to construct a variety of insertion mutants of X. bovienii. Mutants that had altered expression of protease, lipase, DNase, dye-binding capability, and hemolytic activity, in addition to a series of auxotrophic mutants, were isolated.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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