Distribution of 2-Aminoethylphosphonic Acid in Some Rumen Microorganisms
نویسندگان
چکیده
منابع مشابه
2-Aminoethylphosphonic acid concentrations in some rumen ciliate protozoa.
The concentration of 2-aminoethylphosphonic acid has been measured in seven genera of rumen ciliate protozoa. Expressed as milligrams per gram of total nitrogen, 2-aminoethylphosphonic acid concentrations ranged from 17.2 in Ophryoscolex spp. to 72.4 in Eremoplastron spp.
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Assimilation of ionic cobalt by axenic cultures of four species of anaerobic rumen bacteria was measured using 6oCo as cobalt (II) chloride. Uptake could be measured in all four species but may not represent active accumulation in the case of Lactobacillus casei and Propionibacterium acnes. Significant uptake (89.5% of 6oCo present) was demonstrated by Selenomonas ruminantium from media contain...
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Rumen microorganisms rapidly metabolized glycine at rates varying from 0.014 to 0.241 mumole of glycine per ml per min. The main metabolic products were carbon dioxide, acetic acid, and ammonia; little glycine was incorporated into bacterial protein. Use of carboxyl or methylene-labeled glycine showed that the carbon dioxide came mainly from the carboxyl of glycine, whereas both carbons of acet...
متن کاملOccurrence of 2-aminoethylphosphonic acid in feeds, ruminal bacteria and duodenal digesta from defaunated sheep.
A quantitative method of analysis for 2-aminoethylphosphonic acid (AEP) was developed using reverse-phase HPLC. The detection limit for AEP was 15 nM, and the detector response (peak area) was linear from AEP levels up to 100 microM (R = .99). Mean recovery of AEP added to strained ruminal fluid from faunated sheep was 98.2%. When AEP was added to a fermentation mixture at a concentration of 22...
متن کامل1-aminoethylphosphonic acid, an inhibitor of bacterial cell wall synthesis.
Sir: There are numerous steps in bacterial cell wall synthesisll) but the compounds inhibiting this synthesis are limited. To this group of compounds, i. e. penicillins2), cephalosporins2), ristocetin6), vancomycin7), bacillin1^ moenomycin5), prasinomycin9), cycloserine10), O-carbamyl-D-serine10), glycine8), and damino acids3) can be added 1-aminoethylphosphonic acid (AEPA). When titrated again...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1968
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(68)86924-3