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1972•Journal of BacteriologyOpen access

Acid-Soluble Nucleotides in an Asporogenous Mutant of Bacillus subtilis

C. T. Chow, I. Takahashi

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Abstract

An asporogenous mutant of Bacillus subtilis Sp(-)H12-3, which is considered to have a block at stage 0, showed general growth characteristics similar to those of sporulating cultures. However, a sudden increase in the total amount of acid-soluble nucleotides observed at t(2) in sporulating bacteria was completely absent in this mutant. In sporulating cells, a marked increase in two nucleotides which were identified to be uridine diphosphate (UDP)-galactose and UDP-N-acetylglucosamine was noted, whereas UDP-glucose appeared to be accumulated in the mutant cells at t(2). No unusual nucleotides were found in the strains of B. subtilis examined. The possible role of these UDP derivatives in early stages of sporulation in B. subtilis is discussed.

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An asporogenous mutant of Bacillus subtilis Sp(-)H12-3, which is considered to have a block at stage 0, showed general growth characteristics similar to those of sporulating cultures. However, a sudden increase in the total amount of acid-soluble nucleotides observed at t(2) in sporulating bacteria was completely absent in this mutant. In sporulating cells, a marked increase in two nucleotides which were identified to be uridine diphosphate (UDP)-galactose and UDP-N-acetylglucosamine was noted, whereas UDP-glucose appeared to be accumulated in the mutant cells at t(2). No unusual nucleotides were found in the strains of B. subtilis examined. The possible role of these UDP derivatives in early stages of sporulation in B. subtilis is discussed.

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Available abstract

An asporogenous mutant of Bacillus subtilis Sp(-)H12-3, which is considered to have a block at stage 0, showed general growth characteristics similar to those of sporulating cultures. However, a sudden increase in the total amount of acid-soluble nucleotides observed at t(2) in sporulating bacteria was completely absent in this mutant. In sporulating cells, a marked increase in two nucleotides which were identified to be uridine diphosphate (UDP)-galactose and UDP-N-acetylglucosamine was noted, whereas UDP-glucose appeared to be accumulated in the mutant cells at t(2). No unusual nucleotides were found in the strains of B. subtilis examined. The possible role of these UDP derivatives in early stages of sporulation in B. subtilis is discussed.

Key concepts: Bacillus subtilis, Nucleotide, Biology, Mutant, Biochemistry, Uridine, Bacteria, Galactose

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