auxotrophy
National Institutes of Health
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A chemically defined minimal medium has been developed for growing the Antarctic psychrotrophic bacterium Pseudomonas syringae…
The Escherichia coli aspartate (AATase) and tyrosine (TATase) aminotransferases share 43% sequence identity and 72% similarity…
ABSTRACT In enterobacteria, the methyl group of methionine is donated by 5-methyltetrahydrofolate that is synthesized fromN5,10…
The inability of cells in culture to grow in medium where methionine is replaced by its metabolic precursor, homocysteine, has…
Relationships between amino acid auxotrophy and N-dodecyloxy-carboxy-methyl-N-N-N-trimethyl ammonium chloride (IM) sensitivity…
New mutant alleles of theadenosine2 locus (ade2; 2–17.7) have been isolated using the eye-color phenotype exhibited by the…
A mutant of Aspergillus nidulans, isolated for inability to form asexual spores (conidia) on complete medium, was found to regain…
A new p-fluorophenylalanine resistant mutant of Neurospora (fpr-1) was isolated. It is unaffected by the suppressor of a…
Auxotrophs were isolated from four effective strains of Rhizobium leguminosarum and R. trifolii for a study of the relationship…
SUMMARY: Spontaneous and u.v.-induced revertants were found to be unstable in serial subculture. Instability was manifested by (a…