Threshold Acetate Concentrations for Acetate Catabolism by Aceticlastic Methanogenic Bacteria
نویسندگان
چکیده
منابع مشابه
Methanogenic cleavage of acetate by lysates of Methanosarcina barkeri.
Cell lysates of acetate-grown Methanosarcina barkeri 227 were found to cleave acetate to CH4 and CO2. The aceticlastic reaction was identified by using radioactive methyl-labeled acetate. Cell lysates decarboxylated acetate in a nitrogen atmosphere, conserving the methyl group in methane. The rate of methanogenesis from acetate in the cell lysates was comparable to that observed with whole cell...
متن کاملAcetoacetate and acetate, intermediates in glutarate catabolism.
The labeling patterns found in tissue glutamate, aspartate, and alanine after administration of glutaric acid-3-Cl4 to male rats (1) indicated that the major catabolic route of glutarate is via acetate (2) and not via a direct conversion to the carbon chain of cu-ketoglutarate (3-5). In further studies on the metabolism of glutarate-3-C14 in rats, we have observed the formation of urinary acety...
متن کاملAcetate oxidation is the dominant methanogenic pathway from acetate in the absence of Methanosaetaceae.
The oxidation of acetate to hydrogen, and the subsequent conversion of hydrogen and carbon dioxide to methane, has been regarded largely as a niche mechanism occurring at high temperatures or under inhibitory conditions. In this study, 13 anaerobic reactors and sediment from a temperate anaerobic lake were surveyed for their dominant methanogenic population by using fluorescent in situ hybridiz...
متن کاملAcetate-replacing Factors for Lactic Acid Bacteria
The stimulatory effect of sodium acetate on growth of lactic acid bacteria was first demonstrated by Snell et al. (1). Guirard et al. (2) investigated the role of acetate in the nutrition of certain lactic acid bacteria and showed that acetate serves a dual purpose in media, (a) that of a buffer and (b) that of a probable precursor of various lipides. It was further demonstrated (3) that some b...
متن کاملMethanogenic archaea and sulfate reducing bacteria co-cultured on acetate: teamwork or coexistence?
Acetate is a major product of fermentation processes and an important substrate for sulfate reducing bacteria and methanogenic archaea. Most studies on acetate catabolism by sulfate reducers and methanogens have used pure cultures. Less is known about acetate conversion by mixed pure cultures and the interactions between both groups. We tested interspecies hydrogen transfer and coexistence betw...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1989
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.55.2.514-515.1989