Please use this identifier to cite or link to this item:
Title: Respiration and physiological state in marine bacteria
Authors: Christensen, J. P.
Owens, T. G.
Devol, A. H.
Packard, T. T. 
UNESCO Clasification: 251001 Oceanografía biológica
2414 Microbiología
Keywords: Bacteria, marine
Issue Date: 1980
Publisher: 0025-3162
Journal: Marine Biology 
Abstract: The relationship between oxygen consumption (R) and respiratory electron-transport-system (ETS) activity was investigated in batch cultures of 5 species of marine bacteria, Vibrio adaptatus, V. anguillarum, a partially identified Vibrio sp. SA774, Serratia marinorubra, and Pseudomonas perfectomarinus. Although cellular levels of R and ETS varied widely among the species tested, the R:ETS ratios for growing or senescent populations were relatively constant among the species; these ratios were 5.02 in growth and 0.426 in senescence, with coefficients of variation of 29 and 20%, respectively. The lower senescent-phase R:ETS ratio was due to a depression of the respiration rates following growth termination. The regression log (R per cell) = 0.832 log (ETS per cell) + 0.727 for the growing populations was similar to that determined for marine zooplankton. The slight dependency of the R:ETS ratio on organism dry weight found for zooplankton was supported by our data. Planktonic respiration rates estimated from measured ETS-depth profiles in the eastern tropical North Pacific Ocean using the senescent-phase R:ETS ratio were similar to published oxygen consumption rates in the deep sea.
ISSN: 0025-3162
DOI: 10.1007/BF00393779
Source: Marine Biology [ISSN 0025-3162], v. 55, p. 267-276
Appears in Collections:Artículos
Show full item record


checked on Jun 26, 2022

Page view(s)

checked on May 14, 2022

Google ScholarTM




Export metadata

Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.