William D. Lawton

New York State Department of Health

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Michael J. Surgalla

Roswell Park Comprehensive Cancer Center

G. M. Fukui

Wallace Laboratories

Hassan A. Gaafar

Animal Health Research Institute

Robert M. Zsigray

University of New Hampshire

Martha J. Taylor

University of Tennessee Health Science Center

Werner A. Janssen

Graduate School Experimental Plant Sciences

Harold B. Stull

National Institutes of Health

Ivan D. Goldberg

Long Island Jewish Medical Center

Dorothy M. Molnar

United States Department of the Army

Franklin J. Tyeryar

National Institute of Allergy and Infectious Diseases

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United States Army

United States Department of the Army

University of Illinois Urbana-Champaign

New York State Department of Health

North Carolina State University

Cornell University

University of Maryland, College Park

United States Public Health Service

Virginia Tech

Merck Institute for Science Education

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Chromosome Mapping of Pasteurella pseudotuberculosis by Interrupted Membrane Mating

William D. Lawton Harold B. Stull

Abstract : Pasteurella pseudotuberculosis F'lac, after growth in brain heart infusion to obtain maximum F piliation, mated on membranes with three different multiple auxotrophs of P. pseudotuberculosis F(-). Samples of mating pairs were periodically separated by vigorous mixing and plated on selective media containing nalidixic acid to counderselect against the donor strain. The transfer of six markers was observed within 65 minutes after mating, resulting in a partial chromosome map. (Author)

Pasteurella

10.21236/ad0857267

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Selective interaction of Neisseria gonorrhoeae and Candida albicans and its possible role in clinical specimens

Journal of Clinical Microbiology (1975)

Sally S. Hipp William D. Lawton M Savage Hassan A. Gaafar

A study of 27 clinical specimens from which Neisseria gonorrhoeae and Candida albicans were isolated simultaneously indicated that 44% of the gonococcal isolates were resistant to inhibition by the C. albicans with which they were found and an additional 33% were totally resistant to inhibition by all C. albicans tested. All 27 C. albicans showed inhibitory activity against standard indicator strains of N. gonorrhoeae.

Neisseria gonorrhoeae

Neisseriaceae

10.1128/jcm.1.5.476-477.1975

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Citations (11)

Factors Affecting Transformation of Pasteurella novicida

Journal of Bacteriology (1970)

Franklin J. Tyeryar William D. Lawton

The requirements and characteristics of Pasteurella novicida transformations in liquid suspensions were studied. Transformation frequencies of 0.1 to 0.3% were routinely obtained when recipient cells were harvested from 16-hr agar plates and higher than 1% when logarithmic-phase broth-grown cells were used. Calcium ions were essential for transformations. The deoxyribonucleic acid dose response curve, kinetics of transformation, and p H optimum for transformations were similar to those of other bacterial transformation systems. The genetic relatedness of P. novicida and P. tularensis was established by transforming P. novicida mutants with deoxyribonucleic acid extracted from P. tularensis .

Pasteurella

10.1128/jb.104.3.1312-1317.1970

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Citations (19)

Immunization against plague by a specific fraction of Pasteurella pseudotuberculosis*

The Journal of Infectious Diseases (1963)

William D. Lawton Michael J. Surgalla

Journal Article Immunization against plague by a specific fraction of Pasteurella pseudotuberculosis Get access W. D. Lawton, W. D. Lawton U. S. Army Biological Laboratories, Fort Detrick, Frederick, Maryland Search for other works by this author on: Oxford Academic PubMed Google Scholar M. J. Surgalla M. J. Surgalla U. S. Army Biological Laboratories, Fort Detrick, Frederick, Maryland Search for other works by this author on: Oxford Academic PubMed Google Scholar The Journal of Infectious Diseases, Volume 113, Issue 1, July-August 1963, Pages 39–42, https://doi.org/10.1093/infdis/113.1.39 Published: 01 July 1963 Article history Received: 15 December 1962 Published: 01 July 1963

plague

10.1093/infdis/113.1.39

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Repression of the Virulence of Yersinia pestis by an F' Plasmid

Infection and Immunity (1983)

Robert M. Zsigray William D. Lawton Michael J. Surgalla

An F- lac plasmid from Escherichia coli was transferred to virulent Yersinia pestis , resulting in the repression of virulence. The Y. pestis F- lac clones retained all of the known virulence traits but were avirulent and calcium independent. Every lac segregant derived from the F- lac clones was fully virulent and calcium dependent.

Yersinia pestis

Yersinia enterocolitica

Yersinia

10.1128/iai.39.2.974-976.1983

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Bacteriocin Production by Neisseria gonorrhoeae

Antimicrobial Agents and Chemotherapy (1976)

William D. Lawton Mary Ann Bellinger Marion Schling Hassan A. Gaafar

Seventeen apparently unrelated isolates of Neisseria gonorrhoeae out of 2,123 tested produced a diffusible growth-inhibitory substance against other gonococci. The inhibitor was destroyed by trypsin, not blocked by bovine serum albumin, and not soluble in chloroform-methanol; each isolate was resistant to the inhibitor it produced. Thus, the substance differs from previously described gonococcal inhibitors, and since it fits the description of a bacteriocin we designated it gonocin. The use of gonocin for typing was complicated by the observation that susceptibility to gonocin appears to depend on the gonococcal colony type.

Neisseria gonorrhoeae

Neisseriaceae

Bovine serum albumin

10.1128/aac.10.3.417

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Isolation of a Strain of Pasteurella Pseudotuberculosis from Alaska Identified as Pasteurella Pestis: An Immunofluorescent False Positive

American Journal of Tropical Medicine and Hygiene (1965)

Stuart F. Quan W. Knapp Martin I. Goldenberg Bruce W. Hudson William D. Lawton

"Isolation of a Strain of Pasteurella Pseudotuberculosis from Alaska Identified as Pasteurella Pestis: An Immunofluorescent False Positive" published on May 1965 by The American Society of Tropical Medicine and Hygiene.

Pasteurella

Strain (injury)

Isolation

Yersinia pseudotuberculosis

Yersinia pestis

10.4269/ajtmh.1965.14.424

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Citations (15)

Increased detection of prolylaminopeptidase in Neisseria meningitidis by Identicult-Neisseria

Journal of Clinical Microbiology (1986)

J. F. Sperry Menashi A. Cohenford Paul Campognone William D. Lawton D O Chee

Identicult-Neisseria (Scott Laboratories, Inc., Fiskeville, R.I.), a rapid enzymatic method with chromogenic substrates, was tested in our laboratories for the identification of Neisseria gonorrhoea, Neisseria meningitidis, and Neisseria lactamica. The test correlated very highly in its identification of pathogenic Neisseria spp. with modified New York City fermentation medium. Identicult-Neisseria appeared to be more sensitive in its detection of prolylaminopeptidase activity in N. meningitidis than most of the currently available systems.

Neisseria

Neisseria gonorrhoeae

Neisseriaceae

10.1128/jcm.24.1.145-.1986

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Pasteurella Bacteriophage Sex Specific in Escherichia coli

Journal of Virology (1969)

Dorothy M. Molnar William D. Lawton

Phage H, thought to be specific for Pasteurella pestis, was shown to plate efficiently on F(-) strains of Escherichia coli but not on F(+), F', or Hfr strains. The phage was adsorbed rapidly to F(-) strains but was not adsorbed to strains carrying F. Comparison with seven other reported female-specific phages showed that, although phage H was similar to the other phages in some characteristics, the exceptionally low efficiency of plating (<10(-9)) on F-containing cells makes phage H a particularly useful female-specific phage.

Lysogenic cycle

10.1128/jvi.4.6.896-900.1969

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MECHANISMS OF HELPER PHAGE. DEPENDENT TRANSFECTION IN BACILLUS SUBTILIS

Darrel D. Gwinn William D. Lawton

Abstract : Bacteriophage SP-18 rendered competent cells of Bacillus subtilis 168 (ind(-)) susceptible to transfection by DNA from apparently unrelated phages. DNA from SP-18 was also active as helper, but it was less effective than the intact phage. Sheared SP-18 DNA retained its helper effect. Phage SP-18 inactivated by ultraviolet irradiation helped SP-10 DNA, but not LP-19 DNA, transfect competent 168 cells.

10.21236/ad0828766

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