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. 1981 Jun;146(3):1055–1058. doi: 10.1128/jb.146.3.1055-1058.1981

Adenylate energy charge in Acholeplasma laidlawii.

K D Beaman, J D Pollack
PMCID: PMC216960  PMID: 7240083

Abstract

Adenosine 5'-triphosphate, adenosine 5'-diphosphate, and adenosine 5'-monophosphate were produced by Acholeplasma laidlawii B-PG9 growing in modified Edward medium. The adenylate energy charge was calculated to be 0.84 +/- 0.07 and ranged from 0.91 to 0.78 during exponential growth (12 to 24 h). During exponential growth, A. laidlawii contained, at 17.5 h, 2.3 X 10(-17) mol of adenosine 5'-triphosphate per colony-forming unit and, at 16 h, 27.3 nmol of adenosine 5'-triphosphate per mg (dry weight). The medium supported a doubling time of 0.95 h. The molar growth yields (Yglucose = grams [dry weight] per mole of glucose used) were 40.2 +/- 3.4 (16 h) and 57.1 +/- 9.7 (20 h) during midexponential growth. A maximum yield of 8.3 X 10(9) colony-forming units was reached at 24 h, when 56% of the initial concentration of glucose had been used. At 40 h, during the stationary phase, 14.95 +/- 3.75 mumol of glucose per ml of medium had been used. At this time, the culture fluids contained 21.86 +/0 mumol of lactate per ml and 3.14 +/- 0.13 mumol of pyruvate per ml.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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