Published Papers

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Journal of Bacteriology
Ti plasmid conjugation is independent of vir: reconstitution of the tra functions from pTiC58 as a binary system.

Pleiotropic menaquinone-deficient mutant of Bacillus subtilis.

Physiological effects of menaquinone deficiency in Bacillus subtilis.

Changes in menaquinone concentration during growth and early sporulation in Bacillus subtilis.

Attempts to detect deoxyribonucleic acid from Agrobacterium tumefaciens and bacteriophage PS8 in crown gall tumors by complementary ribonucleic acid-deoxyribonucleic acid-filter hybridization.

Conjugation in Agrobacterium tumefaciens in the absence of plant tissue.

R-plasmid-mediated chromosomal gene transfer in Agrobacterium tumefaciens.

Diversity among B6 strains of Agrobacterium tumefaciens.

Transposon-facilitated chromosome mobilization in Agrobacterium tumefaciens.

Characterization of transposon Tn5-facilitated donor strains and development of a chromosomal linkage map for Agrobacterium tumefaciens.

Proline biosynthesis encoded by the noc and occ loci of Agrobacterium Ti plasmids.

Genetic analysis of agrocin 84 production and immunity in Agrobacterium spp.

Characterization and mapping of the agrocinopine-agrocin 84 locus on the nopaline Ti plasmid pTiC58.

Opine utilization by Agrobacterium spp.: octopine-type Ti plasmids encode two pathways for mannopinic acid degradation.

Characterization of conjugal transfer functions of Agrobacterium tumefaciens Ti plasmid pTiC58.

Construction of an Agrobacterium tumefaciens C58 recA mutant.

Spontaneous mutation conferring the ability to catabolize mannopine in Agrobacterium tumefaciens.

The oriT region of the Agrobacterium tumefaciens Ti plasmid pTiC58 shares DNA sequence identity with the transfer origins of RSF1010 and RK2/RP4 and with T-region borders.

The tra region of the nopaline-type Ti plasmid is a chimera with elements related to the transfer systems of RSF1010, RP4, and F.

Genetic analysis of the agrocinopine catabolic region of Agrobacterium tumefaciens Ti plasmid pTiC58, which encodes genes required for opine and agrocin 84 transport.

Capsular polysaccharide biosynthesis and pathogenicity in Erwinia stewartii require induction by an N-acylhomoserine lactone autoinducer.

A new regulatory element modulates homoserine lactone-mediated autoinduction of Ti plasmid conjugal transfer.

Functional role of the Ti plasmid-encoded catabolic mannopine cyclase in mannityl opine catabolism by Agrobacterium spp.

A Ti plasmid-encoded enzyme required for degradation of mannopine is functionally homologous to the T-region-encoded enzyme required for synthesis of this opine in crown gall tumors.

Ti plasmid-encoded genes responsible for catabolism of the crown gall opine mannopine by Agrobacterium tumefaciens are homologs of the T-region genes responsible for synthesis of this opine by the plant tumor.

Purification and characterization of catabolic mannopine cyclase encoded by the Agrobacterium tumefaciens Ti plasmid pTi15955.

The conjugal transfer system of Agrobacterium tumefaciens octopine-type Ti plasmids is closely related to the transfer system of an IncP plasmid and distantly related to Ti plasmid vir genes.


Nature Biotechnology

Modification of rhizobacterial populations by engineering bacterium utilization of a novel plant-produced resource


Proceedings of the National Academy Sciences

Detecting and characterizing N-acyl-homoserine lactone signal molecules by thin-layer chromatography.

TraI, $ factor, the Ti plasmid N-acylhomoserine lactone autoinducer.

Opine catabolism and conjugal transfer of the nopaline Ti plasmid pTiC58 are coordinately regulated by a single repressor.

Agrobacterium tumefaciens DNA and PS8 bacteriophage DNA not detected in crown gall tumors.


Molecular Plant-Microbe Interactions

Translocation and exudation of tumor metabolites in crown galled plants.


Applied Environmental Microbiology

A novel gene tag for identifying microorganisms released into the environment.


Nature

Conjugation factor of Agrobacterium tumefaciens regulates Ti plasmid transfer by autoinduction.

Plasmid
Deletion derivatives of pAgK84 and their use in the analysis of Agrobacterium plasmid functions.

Tn5 insertions in the agrocin 84 plasmid: the conjugal nature of pAgK84 and the locations of determinants for transfer and agrocin 84 production.

Genetic isolation and physical characterization of pAgK84, the plasmid responsible for agrocin 84 production.


Molecular and General Genetics

Agrobacterium plasmids encode structurally and functionally different loci for catabolism of agrocinopine-type opines.

Genetic analysis of mannityl opine catabolism in octopine-type Agrobacterium tumefaciens strain 15955.


Molecular Plant-Microbe Interactions

Localization and characterization of the region encoding catabolism of mannopinic acid from the octopine-type Ti plasmid pTi15955.


Journal of Clincal Microbiology

Rapid detection of cytomegalovirus in clinical specimens by using biotinylated DNA probes and analysis of cross-reactivity with herpes simplex virus.


Journal of General Microbiology

Agrobacterium Ti and Ri plasmids specify enzymic lactonization of mannopine to agropine.


Antimicrobial Agents and Chemotherapy

Diversity of determinants encoding carbenicillin, gentamicin, and tobramycin resistance in nosocomial Pseudomonas aeruginosa.

Hospita$ carbenicillin, and gentamicin resistance to other gram-negative bacteria including Pseudomonas aeruginosa.


Chemotherapy

An R plasmid of Serratia marcescens transferable to Pseudomonas aeruginosa.


Journal of Medical Microbiology

An R plasmid of broad host-range, coding for resistance to nine antimicrobial agents endemic in Gram-negative nosocomial isolates.

Genetics
RP4 promotion of transfer of a large Agrobacterium plasmid which confers virulence.


Biochimica Biophysica Acta

Attempts to detect Agrobacterium tumefaciens and bacteriophage PS8 DNA in crown gall tumors by DNA-DNA-filter hybridization.