Results 191 to 200 of about 10,378 (243)
Some of the next articles are maybe not open access.
Energetic irrelevance of aerobiosis for S. cerevisiae growing on sugars
Molecular and Cellular Biochemistry, 1979The net benefit that Saccharomyces cerevisiae obtains from aerobiosis as compared to anaerobiosis has been studied. For this purpose yeasts with different respiratory capacities have been obtained by growing them in batch cultures on different substrates.
R. Lagunas
semanticscholar +3 more sources
Aerobiosis and the hemoprotein content of photosynthetic bacteria
Archiv f�r Mikrobiologie, 1959 Rhodospirillum rubrum and Rhodopseudomonas spheroides, grown under various degrees of illumination, aeration, and iron deprivation, have been assayed for their content of cytochrome c, RHP, catalase, total iron, bacteriochlorophyll, and carotenoids.
Roderick K. Clayton
openalex +3 more sources
Aerobiosis Increases the Genomic Guanine Plus Cytosine Content (GC%) in Prokaryotes
Journal of Molecular Evolution, 2002The huge variation in the genomic guanine plus cytosine content (GC%) among prokaryotes has been explained by two mutually exclusive hypotheses, namely, selectionist and neutralist. The former proposals have in common the assumption that this feature is a form of adaptation to some ecological or physiological condition.
Hugo Naya +4 more
semanticscholar +3 more sources
Cytolysin gene expression in Enterococcus faecalis is regulated in response to aerobiosis conditions
Molecular Genetics and Genomics, 2003Here we investigate the expression of cylL(L)and cylL(S), the genes that encode the structural subunits of the cytolysin/haemolysin of Enterococcus faecalis, in response to aerobiosis conditions. Haemolysis assays of E. faecalis strains cultured under aerobic and anaerobic conditions revealed three different haemolytic phenotypes, one of which ...
Alison M. Day +2 more
semanticscholar +3 more sources
Characterization of E. coli MG1655 and frdA and sdhC mutants at various aerobiosis levels.
Journal of Biotechnology, 2011Depending on the availability of oxygen, Escherichia coli is able to switch between aerobic respiratory metabolism and anaerobic mixed acid fermentation. An important, yet understudied, metabolic mode is the micro-aerobic metabolism at intermediate oxygen availabilities. The relationship between oxygen input, physiology and gene expression of E.
Sonja Steinsiek +3 more
semanticscholar +4 more sources
Life History Traits and Genome Structure: Aerobiosis and G+C Content in Bacteria [PDF]
International Conference on Conceptual Structures, 2004 Evolution is a tinkerer not an engineer: the term exaptation was coined to signify that old structures, that could be not significant in terms of fitness, get re-used when environmental conditions changed. Here I show that the average protein composition of G+C rich bacteria were exapted to the switch from anaerobic to aerobic conditions.
J. Lobry
semanticscholar +3 more sources
Earth and Planetary Science Letters, 2008
Abstract Bacteriohopanepolyols with A-ring methyl substituents are bacterial lipid biomarkers that are presently known to originate from just a few specific taxa. When preserved in ancient rocks, the fossilized hydrocarbon skeletons of these molecules have the potential to provide biogeochemical records of those taxa and their respective physiologies.
J. Eigenbrode, K. Freeman, R. Summons
semanticscholar +2 more sources
Abstract Bacteriohopanepolyols with A-ring methyl substituents are bacterial lipid biomarkers that are presently known to originate from just a few specific taxa. When preserved in ancient rocks, the fossilized hydrocarbon skeletons of these molecules have the potential to provide biogeochemical records of those taxa and their respective physiologies.
J. Eigenbrode, K. Freeman, R. Summons
semanticscholar +2 more sources