Influence of Nitrate and Molybdenum on Sulfur Utilization by Rumen Microorganisms
نویسندگان
چکیده
منابع مشابه
Metabolism of glycine by rumen microorganisms.
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 کاملMolybdenum and Nitrate Reductase
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants (l-3) and fungi (2, 4) which are deficient in molybdenum. Other workers have shown that sulfur, zinc, and manganese deficiencies in higher plants may also result in a similar phenomenon (5). The free amino acids present in molybdenum-deficient plants are usually less than those in normal tissues, thus indicatin...
متن کاملUtilization of inorganic sulfate by rumen microorganisms. I. Incorporation of inorganic sulfate into amino acids.
The ability of rumen microbiota to incorporate inorganic sulfate into cystine and methionine was suggested by Loosli et al. (1949) and demonstrated by Block et al. (1951) through use of radioactive sodium sulfate. The significance of this incorporation as applied to ruminant nutrition has been discussed by Davis et al. (1954). Formation of microbial protein in the rumen of cattle is accompanied...
متن کاملMolybdenum isotope fractionation by cyanobacterial assimilation during nitrate utilization and N2fixation
We measured the δ⁹⁸Mo of cells and media from molybdenum (Mo) assimilation experiments with the freshwater cyanobacterium Anabaena variabilis, grown with nitrate as a nitrogen (N) source or fixing atmospheric N₂. This organism uses a Mo-based nitrate reductase during nitrate utilization and a Mo-based dinitrogenase during N₂ fixation under culture conditions here. We also demonstrate that it ha...
متن کاملthe influence of social and cultural capital on efl students critical thinking skills
the major aim of this study was to investigate the relationship between social and cultural capital and efl students’ critical thinking skills. this study takes this relationship in to account to see if people with different sociocultural status are different regarding their critical thinking skills. to this end, 160 university students majoring in english language and literature, english trans...
15 صفحه اولذخیره 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: Journal of Dairy Science
سال: 1977
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(77)84120-9