Microbiological Assay of Vitamin B 12 with a Mutant Strain of Escherichia coli

MUTANTS OF ESCHERICHIA COLI REQUIRING METHIONINE OR VITAMIN B ₁₂

1950 • 2,926 citations

NEUROSPORA. II. METHODS OF PRODUCING AND DETECTING MUTATIONS CONCERNED WITH NUTRITIONAL REQUIREMENTS

1945 • 533 citations

Gene Recombination in the BacteriumEscherichia coli

1947 • 303 citations

MEDIA FOR LEUCONOSTOC MESENTEROIDES P-60 AND LEUCONOSTOC CITROVORUM 8081

1949 • 259 citations

Assay of Anti-Pernicious Anemia Factor with Euglena.

1949 • 137 citations

Determination of Vitamin B ₁₂ with a Mutant Strain of Escherichia coli

1951 • 102 citations

THE USE OF LACTOBACILLUS LEICHMANNII IN THE MICROBIOLOGICAL ASSAY OF THE “ANIMAL PROTEIN FACTOR”

1948 • 87 citations

THE MICROBIOLOGICAL ASSAY OF VITAMIN B12 WITH LACTOBACILLUS LEICHMANNII

1949 • 74 citations

THE NON-SPECIFICITY OF THYMIDINE AS A GROWTH FACTOR FOR LACTIC ACID BACTERIA

1949 • 72 citations

THE USE OF LACTOBACILLUS LEICHMANNII IN THE ESTIMATION OF VITAMIN B12 ACTIVITY

1950 • 58 citations

THYMINE DESOXYRIBOSIDE AS AN ESSENTIAL GROWTH FACTOR FOR LACTIC ACID BACTERIA

1948 • 56 citations

RESPONSE OF LACTOBACILLUS LEICHMANNII 313 TO THE ANTIPERNICIOUS ANEMIA FACTOR

1948 • 48 citations

The assay of vitamin B12. Part VI. Microbiological estimation with a mutant of Escherichia coli by the plate method

1951 • 46 citations

A Microbiological Assay for Vitamin B12 Using Lactobacillus leichmannii.

1949 • 44 citations

VITAMIN B12 AND RELATED FACTORS IN THE NUTRITION OF LACTOBACILLUS LEICHMANNII 313

1949 • 32 citations

A METHOD FOR THE MICROBIOLOGICAL ASSAY OF VITAMIN B12

1949 • 26 citations

MICROBIOLOGICAL ASSAYS FOR VITAMIN B12: A CYANIDE ENHANCEMENT EFFECT

1951 • 22 citations

The assay of vitamin B12. Part IV. The microbiological estimation with Lactobacillus leichmannii 313 by the turbidimetric procedure

1951 • 11 citations

Work of the School Nurse‐Teacher

1950 • 1 citations