Inhibition of Oxygen Utilization and Destruction of Ubiquinone by Ultraviolet Irradiation of Thiobacillus thiooxidans-Reference-Cited by-同舟云学术

Inhibition of Oxygen Utilization and Destruction of Ubiquinone by Ultraviolet Irradiation of Thiobacillus thiooxidans

Published:1968-01 Issue:1 Volume:95 Page:147-151
ISSN:0021-9193
Container-title:Journal of Bacteriology
language:en
Short-container-title:J Bacteriol

Author:

Adair Frank W.¹

Affiliation:

1. Department of Microbiology, Rutgers, The State University, New Brunswick, New Jersey 08903

Abstract

Ultraviolet (UV) irradiation inhibited sulfur oxidation by cells of Thiobacillus thiooxidans . Sulfur-oxidizing activity decreased as the exposure time to UV light increased. A loss of the ability of cells of fix CO 2 paralleled the loss of sulfur-oxidizing activity. UV light photoinactivated ubiquinone purified from T. thiooxidans . The same percentage of sulfur-oxidizing activity and ubiquinone was destroyed after 15 min of UV exposure. Both the photoinactivation of sulfur oxidation and ubiquinone followed first-order reaction kinetics. The specific rate constants for both photoinactivations were nearly equal. Cells completely inactivated by UV light contained no ubiquinone. Ubiquinone was found to be a component of the cell wall-membrane complex.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/jb.95.1.147-151.1968

Reference15 articles.

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