Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Clock control of ultradian respiratory oscillation found during yeast continuous culture

Murray, Douglas B., Roller, Sibel, Kuriyama, Hiroshi and Lloyd, David 2001. Clock control of ultradian respiratory oscillation found during yeast continuous culture. Journal of Bacteriology 183 (24) , pp. 7253-7259. 10.1128/JB.183.24.7253-7259.2001

Full text not available from this repository.

Abstract

A short-period autonomous respiratory ultradian oscillation (period ≈ 40 min) occurs during aerobic Saccharomyces cerevisiae continuous culture and is most conveniently studied by monitoring dissolved O2 concentrations. The resulting data are high quality and reveal fundamental information regarding cellular dynamics. The phase diagram and discrete fast Fourier transformation of the dissolved O2 values revealed a square waveform with at least eight harmonic peaks. Stepwise changes in temperature revealed that the oscillation was temperature compensated at temperatures ranging from 27 to 34°C when either glucose (temperature quotient [Q10] = 1.02) or ethanol (Q10 = 0.82) was used as a carbon source. After alteration of the temperature beyond the temperature compensation region, phase coherence events for individual cells were quickly lost. As the cell doubling rate decreased from 15.5 to 9.2 h (a factor of 1.68), the periodicity decreased by a factor of 1.26. This indicated that there was a degree of nutrient compensation. Outside the range of dilution rates at which stable oscillation occurred, the mode of oscillation changed. The oscillation in respiratory output is therefore under clock control.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: American Society for Microbiology
ISSN: 0021-9193
Last Modified: 04 Jun 2017 06:36
URI: http://orca.cf.ac.uk/id/eprint/62696

Citation Data

Cited 67 times in Google Scholar. View in Google Scholar

Cited 67 times in Scopus. View in Scopus. Powered By Scopus® Data

Cited 53 times in Web of Science. View in Web of Science.

Actions (repository staff only)

Edit Item Edit Item