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Journal Articles

Appearance of Virulent Bacteriophages in Lysogenic E. coli Cultures after Prolonged Growth in the Presence of Triethylenemelamine

John H. Northrop

J Gen Physiol (1968) 52 (1): 136–143.

https://doi.org/10.1085/jgp.52.1.136

Published: 01 July 1968

View article titled, Appearance of Virulent Bacteriophages in Lysogenic E. coli Cultures after Prolonged Growth in the Presence of Triethylenemelamine

Journal Articles

Increased Mutation Rate of E. coli K12λ Cultures Maintained in Continuous Logarithmic Growth

John H. Northrop

J Gen Physiol (1966) 50 (2): 369–377.

https://doi.org/10.1085/jgp.50.2.369

Published: 01 November 1966

View article titled, Increased Mutation Rate of E. coli K12λ Cultures Maintained in Continuous Logarithmic Growth

Journal Articles

The Effect of Proteolytic Enzymes on E. coli Phages and on Native Proteins

John H. Northrop

J Gen Physiol (1964) 48 (1): 73–78.

https://doi.org/10.1085/jgp.48.1.73

Published: 01 September 1964

View article titled, The Effect of Proteolytic Enzymes on E. coli Phages and on Native Proteins

Journal Articles

Studies of the Origin of Bacterial Viruses : VII. The effect of various mutagens (urethane, ethyl urethane, hydrogen peroxide, desoxycholate, maleic hydrazide, butadiene dioxide, triethylene melamine, versene, and acriflavine) on the proportion of virus-producing and streptomycin-resistant cells in cultures of B. megatherium 20 δ

John H. Northrop, with the technical assistance of Marie King

J Gen Physiol (1963) 46 (5): 971–981.

https://doi.org/10.1085/jgp.46.5.971

Published: 01 May 1963

View article titled, Studies of the Origin of Bacterial Viruses : <subtitle>VII. The effect of various mutagens (urethane, ethyl urethane, hydrogen peroxide, desoxycholate, maleic hydrazide, butadiene dioxide, triethylene melamine, versene, and acriflavine) on the proportion of virus-producing and streptomycin-resistant cells in cultures of B. megatherium 20 δ </subtitle>

Journal Articles

Factors Controlling the Production of Lysogenic Cultures of B. megatherium

John H. Northrop, with the technical assistance of Marie King

J Gen Physiol (1961) 44 (5): 859–867.

https://doi.org/10.1085/jgp.44.5.859

Published: 01 May 1961

View article titled, Factors Controlling the Production of Lysogenic Cultures of B. megatherium

Journal Articles

Studies of the Origin of Bacterial Viruses : VI. Effect of manganese on the proportion of phage-producing, terramycin-resistant, streptomycin-resistant, and phage-resistant cells in lysogenic megatherium cultures

John H. Northrop, with the technical assistance of Marie King

J Gen Physiol (1960) 43 (3): 541–550.

https://doi.org/10.1085/jgp.43.3.541

Published: 01 January 1960

View article titled, Studies of the Origin of Bacterial Viruses : <subtitle>VI. Effect of manganese on the proportion of phage-producing, terramycin-resistant, streptomycin-resistant, and phage-resistant cells in lysogenic megatherium cultures </subtitle>

Journal Articles

Apparatus for the Maintenance of Bacterial Cultures in the Steady State : II. Improved turbidity control and culture cell

John H. Northrop

J Gen Physiol (1960) 43 (3): 551–554.

https://doi.org/10.1085/jgp.43.3.551

Published: 01 January 1960

View article titled, Apparatus for the Maintenance of Bacterial Cultures in the Steady State : <subtitle>II. Improved turbidity control and culture cell </subtitle>

Journal Articles

STUDIES ON THE ORIGIN OF BACTERIAL VIRUSES : V. THE EFFECT OF TEMPERATURE ON THE TERRAMYCIN-RESISTANT AND PHAGE-PRODUCING CELLS OF BACILLUS MEGATHERIUM CULTURES

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1958) 42 (2): 329–334.

https://doi.org/10.1085/jgp.42.2.329

Published: 20 November 1958

View article titled, STUDIES ON THE ORIGIN OF BACTERIAL VIRUSES : <subtitle>V. T<sc>HE</sc> E<sc>FFECT OF</sc> T<sc>EMPERATURE ON THE</sc> T<sc>ERRAMYCIN</sc>-R<sc>ESISTANT AND</sc> P<sc>HAGE</sc>-P<sc>RODUCING</sc> C<sc>ELLS OF</sc> B<sc>ACILLUS MEGATHERIUM</sc> C<sc>ULTURES </sc></subtitle>

Journal Articles

STUDIES ON THE ORIGIN OF BACTERIAL VIRUSES : I. THE INCIDENCE OF PHAGE-PRODUCING CELLS IN VARIOUS B. MEGATHERIUM CULTURES. II. THE EFFECT OF ULTRAVIOLET LIGHT ON THE INCIDENCE OF PHAGE-PRODUCING CELLS AND OF TERRAMYCIN-RESISTANT CELLS. III. THE EFFECT OF HYDROGEN PEROXIDE ON THE INCIDENCE OF PHAGE-PRODUCING CELLS AND OF TERRAMYCIN-RESISTANT CELLS. IV. CALCULATION OF THE INCIDENCE OF PHAGE-PRODUCING CELLS

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1958) 42 (1): 109–136.

https://doi.org/10.1085/jgp.42.1.109

Published: 20 September 1958

View article titled, STUDIES ON THE ORIGIN OF BACTERIAL VIRUSES : <subtitle>I. T<sc>HE</sc> I<sc>NCIDENCE OF</sc> P<sc>HAGE</sc>-P<sc>RODUCING</sc> C<sc>ELLS IN</sc> V<sc>ARIOUS</sc> B. <sc>MEGATHERIUM</sc> C<sc>ULTURES</sc>. II. T<sc>HE</sc> E<sc>FFECT OF</sc> U<sc>LTRAVIOLET</sc> L<sc>IGHT ON THE</sc> I<sc>NCIDENCE OF</sc> P<sc>HAGE</sc>-P<sc>RODUCING</sc> C<sc>ELLS AND OF</sc> T<sc>ERRAMYCIN</sc>-R<sc>ESISTANT</sc> C<sc>ELLS</sc>. III. T<sc>HE</sc> E<sc>FFECT OF</sc> H<sc>YDROGEN</sc> P<sc>EROXIDE ON THE</sc> I<sc>NCIDENCE OF</sc> P<sc>HAGE</sc>-P<sc>RODUCING</sc> C<sc>ELLS AND OF</sc> T<sc>ERRAMYCIN</sc>-<sc>RESISTANT</sc> C<sc>ELLS</sc>. IV. C<sc>ALCULATION OF THE</sc> I<sc>NCIDENCE OF</sc> P<sc>HAGE</sc>-P<sc>RODUCING</sc> C<sc>ELLS </sc></subtitle>

Journal Articles

THE PROPORTION OF TERRAMYCIN-RESISTANT MUTANTS IN B. MEGATHERIUM CULTURES

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1957) 41 (1): 131–141.

https://doi.org/10.1085/jgp.41.1.131

Published: 20 September 1957

View article titled, THE PROPORTION OF TERRAMYCIN-RESISTANT MUTANTS IN B. MEGATHERIUM CULTURES

Journal Articles

THE PROPORTION OF MUTANTS IN BACTERIAL CULTURES

John H. Northrop, M. Kunitz

J Gen Physiol (1957) 41 (1): 119–129.

https://doi.org/10.1085/jgp.41.1.119

Published: 20 September 1957

View article titled, THE PROPORTION OF MUTANTS IN BACTERIAL CULTURES

Journal Articles

THE EFFECT OF ULTRAVIOLET AND WHITE LIGHT ON GROWTH RATE, LYSIS, AND PHAGE PRODUCTION OF BACILLUS MEGATHERIUM

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1957) 40 (5): 653–661.

https://doi.org/10.1085/jgp.40.5.653

Published: 20 May 1957

View article titled, THE EFFECT OF ULTRAVIOLET AND WHITE LIGHT ON GROWTH RATE, LYSIS, AND PHAGE PRODUCTION OF BACILLUS MEGATHERIUM

Journal Articles

ADAPTATION OF BACILLUS MEGATHERIUM TO TERRAMYCIN (OXYTETRACYCLINE)

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1957) 40 (4): 547–563.

https://doi.org/10.1085/jgp.40.4.547

Published: 20 March 1957

View article titled, ADAPTATION OF BACILLUS MEGATHERIUM TO TERRAMYCIN (OXYTETRACYCLINE)

Journal Articles

APPEARANCE OF NEW PHAGE TYPES AND NEW LYSOGENIC STRAINS AFTER ADAPTATION OF LYSOGENIC B. MEGATHERIUM TO AMMONIUM SULFATE CULTURE MEDIUM

John H. Northrop, James S. Murphy, With the Technical Assistance of Marie King

J Gen Physiol (1956) 39 (4): 607–624.

https://doi.org/10.1085/jgp.39.4.607

Published: 20 March 1956

View article titled, APPEARANCE OF NEW PHAGE TYPES AND NEW LYSOGENIC STRAINS AFTER ADAPTATION OF LYSOGENIC B. MEGATHERIUM TO AMMONIUM SULFATE CULTURE MEDIUM

Journal Articles

CONCENTRATION AND PURIFICATION OF B. MEGATHERIUM PHAGE

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1955) 39 (2): 259–260.

https://doi.org/10.1085/jgp.39.2.259

Published: 20 November 1955

View article titled, CONCENTRATION AND PURIFICATION OF B. MEGATHERIUM PHAGE

Journal Articles

THE EFFECT OF TRYPSIN, CHYMOTRYPSIN, RIBONUCLEASE, AND DESOXYRIBONUCLEASE ON ACTIVE, INACTIVE, AND REVERSIBLY INACTIVATED MEGATHERIUM PHAGE

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1955) 39 (2): 251–258.

https://doi.org/10.1085/jgp.39.2.251

Published: 20 November 1955

View article titled, THE EFFECT OF TRYPSIN, CHYMOTRYPSIN, RIBONUCLEASE, AND DESOXYRIBONUCLEASE ON ACTIVE, INACTIVE, AND REVERSIBLY INACTIVATED MEGATHERIUM PHAGE

Journal Articles

INACTIVATION AND REACTIVATION OF B. MEGATHERIUM PHAGE

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1955) 39 (2): 225–249.

https://doi.org/10.1085/jgp.39.2.225

Published: 20 November 1955

View article titled, INACTIVATION AND REACTIVATION OF B. MEGATHERIUM PHAGE

Journal Articles

APPARATUS FOR MAINTAINING BACTERIAL CULTURES IN THE STEADY STATE

John H. Northrop

J Gen Physiol (1954) 38 (1): 105–115.

https://doi.org/10.1085/jgp.38.1.105

Published: 20 September 1954

View article titled, APPARATUS FOR MAINTAINING BACTERIAL CULTURES IN THE STEADY STATE

Journal Articles

GROWTH AND PHAGE PRODUCTION OF B. MEGATHERIUM : I. GROWTH OF CELLS AFTER INFECTION WITH C PHAGE II. RATE OF GROWTH, PHAGE YIELD, AND RNA CONTENT OF CELLS III. EFFECT OF VARIOUS SUBSTANCES ON GROWTH RATE AND PHAGE PRODUCTION

John H. Northrop, With the Technical Assistance of Marie King

J Gen Physiol (1953) 36 (4): 581–599.

https://doi.org/10.1085/jgp.36.4.581

Published: 20 March 1953

View article titled, GROWTH AND PHAGE PRODUCTION OF B. MEGATHERIUM : <subtitle>I. G<sc>ROWTH OF</sc> C<sc>ELLS AFTER</sc> I<sc>NFECTION WITH</sc> C P<sc>HAGE</sc> II. R<sc>ATE OF</sc> G<sc>ROWTH</sc>, P<sc>HAGE</sc> Y<sc>IELD, AND</sc> RNA C<sc>ONTENT OF</sc> C<sc>ELLS</sc> III. E<sc>FFECT OF</sc> V<sc>ARIOUS</sc> S<sc>UBSTANCES ON</sc> G<sc>ROWTH</sc> R<sc>ATE AND</sc> P<sc>HAGE</sc> P<sc>RODUCTION </sc></subtitle>

Journal Articles

THE EFFECT OF VARIOUS CULTURE MEDIA ON INFECTION, GROWTH, LYSIS, AND PHAGE PRODUCTION OF B. MEGATHERIUM

John H. Northrop

J Gen Physiol (1952) 35 (3): 471–481.

https://doi.org/10.1085/jgp.35.3.471

Published: 20 January 1952

View article titled, THE EFFECT OF VARIOUS CULTURE MEDIA ON INFECTION, GROWTH, LYSIS, AND PHAGE PRODUCTION OF B. MEGATHERIUM

NARROW

Appearance of Virulent Bacteriophages in Lysogenic E. coli Cultures after Prolonged Growth in the Presence of Triethylenemelamine

Increased Mutation Rate of E. coli K12λ Cultures Maintained in Continuous Logarithmic Growth

The Effect of Proteolytic Enzymes on E. coli Phages and on Native Proteins

Factors Controlling the Production of Lysogenic Cultures of B. megatherium

Studies of the Origin of Bacterial Viruses : VI. Effect of manganese on the proportion of phage-producing, terramycin-resistant, streptomycin-resistant, and phage-resistant cells in lysogenic megatherium cultures

Apparatus for the Maintenance of Bacterial Cultures in the Steady State : II. Improved turbidity control and culture cell

STUDIES ON THE ORIGIN OF BACTERIAL VIRUSES : V. THE EFFECT OF TEMPERATURE ON THE TERRAMYCIN-RESISTANT AND PHAGE-PRODUCING CELLS OF BACILLUS MEGATHERIUM CULTURES

THE PROPORTION OF TERRAMYCIN-RESISTANT MUTANTS IN B. MEGATHERIUM CULTURES

THE PROPORTION OF MUTANTS IN BACTERIAL CULTURES

THE EFFECT OF ULTRAVIOLET AND WHITE LIGHT ON GROWTH RATE, LYSIS, AND PHAGE PRODUCTION OF BACILLUS MEGATHERIUM

ADAPTATION OF BACILLUS MEGATHERIUM TO TERRAMYCIN (OXYTETRACYCLINE)

APPEARANCE OF NEW PHAGE TYPES AND NEW LYSOGENIC STRAINS AFTER ADAPTATION OF LYSOGENIC B. MEGATHERIUM TO AMMONIUM SULFATE CULTURE MEDIUM

CONCENTRATION AND PURIFICATION OF B. MEGATHERIUM PHAGE

THE EFFECT OF TRYPSIN, CHYMOTRYPSIN, RIBONUCLEASE, AND DESOXYRIBONUCLEASE ON ACTIVE, INACTIVE, AND REVERSIBLY INACTIVATED MEGATHERIUM PHAGE

INACTIVATION AND REACTIVATION OF B. MEGATHERIUM PHAGE

APPARATUS FOR MAINTAINING BACTERIAL CULTURES IN THE STEADY STATE

GROWTH AND PHAGE PRODUCTION OF B. MEGATHERIUM : I. GROWTH OF CELLS AFTER INFECTION WITH C PHAGE II. RATE OF GROWTH, PHAGE YIELD, AND RNA CONTENT OF CELLS III. EFFECT OF VARIOUS SUBSTANCES ON GROWTH RATE AND PHAGE PRODUCTION

THE EFFECT OF VARIOUS CULTURE MEDIA ON INFECTION, GROWTH, LYSIS, AND PHAGE PRODUCTION OF B. MEGATHERIUM

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