(n.) The act or process of freeing from nitrogen; also, the condition resulting from the removal of nitrogen.
Example Sentences:
(1) Hb was added to an anaerobic bacterial suspension and denitrification was initiated with either KNO2 or KNO3.
(2) A spectrophotometric method has been developed that uses extracellular hemoglobin (Hb) to trap nitric oxide (NO) released during denitrification as nitrosyl hemoglobin (HbNO).
(3) When [15]nitrite was used as substrate for the N2-forming denitrification, 15N2O, 15NO, and 14N15N were obtained as the products.
(4) Simultaneous processes of nitrification and denitrification were observed in optimal aerated manure similar to activated sludge processes.
(5) In faecal slurries, however, denitrification was a relatively minor route of NO3- dissimilation, since only about 3% of the NO3- was converted to gaseous products, with NO3- being mainly reduced to NO2- and NH4+.
(6) Conversely, energy was conserved when either nitrate, nitrite or nitrous oxide functioned as the oxidants during denitrification-dependent proton translocation experiments.
(7) A highly sensitive denitrification bioassay was developed for detection of NO3- and NO2- in rhizosphere soil samples.
(8) The kinetics of each step of denitrification was examined in resting cell suspensions.
(9) Effects of illumination on denitrification varied with electron donors.
(10) Effects of various inhibitors on denitrification were examined in light-succinate and dark-lactate systems.
(11) The regulation of nitrate respiration at the level of transport by oxygen may represent a major mechanism by which the entire denitrification pathway is regulated in P. aeruginosa.
(12) Mineralization of the labile fraction of the soil organic carbon via microbial denitrification occurred without an observed acclimation period and was rapid compared with PAH degradation.
(13) Denitrification by two of the strains was quantitatively studied using cell suspensions.
(14) Comparison of the cell growth during denitrification indicated that the dissimilatory reduction of nitrate to nitrite is an energetically favorable process in F. oxysporum; however, further reduction of nitrite to N2O might be energy-exhausting and may function as a detoxification mechanism.
(15) The yields varied with sparging rates in agreement with a quantitative model of denitrification (Betlach, M. P., and Tiedje, J.M.
(16) Effects of illumination on the denitrification of nitrite were similar to those involving nitrate.
(17) Our observations provide evidence for a denitrification pathway in vivo of NO2(-)----NO----N2O, and N,N-bond formation catalyzed by NO reductase and not by cytochrome cd1.
(18) One of the reasons for this change is the process of denitrification due to changes in the hydrogeochemical conditions in a layer.
(19) The bulk of the denitrification activity was associated with the accumulation of NO3- in the oxidized surface zone of the sediment, but a secondary denitrification zone was occasionally found in the deeper layers where oxidized patches had been introduced by the burrowing activity of the macrofauna.
(20) Reports of the simultaneous use of oxygen and denitrification by different species of bacteria have become more common over the past few years.
Molecular
Definition:
(a.) Pertaining to, connected with, produced by, or consisting of, molecules; as, molecular forces; molecular groups of atoms, etc.
Example Sentences:
(1) The purpose of these studies was to better understand the molecular basis of chromosome aberration formation after mitomycin C treatment.
(2) In animal experiments pharmacological properties of the low molecular weight heparin derivative CY 216 were determined.
(3) The peak molecular weight never reached that of a complete 2:1 complex.
(4) low molecular weight dextran in the course of right heart catheterization.
(5) In these liposomes, the amounts and molecular states of SL-MDP were determined from ESR spectra and are discussed in connection with its immunopotentiating property.
(6) Their contour lengths varied from 0.28 to 51 micron, but unlike in the case of maize, a large difference was not observed in the distribution of molecular classes greater than 1.0 micron between N and S cytoplasms of sugar beet.
(7) During the digestion of these radiolabeled bacteria, murine bone marrow macrophages produced low-molecular-weight substances that coeluted chromatographically with the radioactive cell wall marker.
(8) The molecular weight of antigen RFB2 was estimated to be approximately 85,000 daltons based on the results of gel filtration on Sepharose CL-6B.
(9) The Bohr and Root effects are absent, although specific amino acid residues, considered responsible of most of these functions, are conserved in the sequence, thus posing new questions about the molecular basis of these mechanisms.
(10) The product of the ugpQ gene, expressed in minicells, has an apparent molecular weight of 17,500.
(11) To further characterize the molecular forms of GnRH in each species, the extracts were injected into a high pressure liquid chromatograph (HPLC).
(12) Preliminary data also suggest that high-molecular-weight rearrangements of the duplicated region are present in all tissues.
(13) Thus there may be four types of LPS in PACI: one contains unsubstituted core polysaccharide and yields L2 on acid hydrolysis, another has short antigenic side-chains of the SR type and yields the LI fraction, while the two high molecular weight fractions are derived from core polysaccharides with different side-chains.
(14) [125I]AaIT was shown to cross the midgut of Sarcophaga through a morphologically distinct segment of the midgut previously shown to be permeable to a cytotoxic, positively charged polypeptide of similar molecular weight.
(15) In both instances the permeation rates of proteins can be better correlated to hydrodynamic radii than to molecular weights.
(16) One major band with a molecular weight of 12,000 was detected by autofluorography and coincided with the Coomassie staining band of apocytochrome c from S. cerevisiae.
(17) After immunoadsorbent purification, the final step in a purification procedure similar to that adopted for colon cancer CEA, two main molecular species were identified: 1) Material identical with colon cancer CEA with respect to molecular size, PCA solubility, ability to bind to Con A, and most important the ability to bind to specific monkey anti-CEA serum.
(18) Immune electroblotting assay detected antibody reactive with a CKV protein with a molecular weight of 67,000 in the serum of the patient, but not in sera of an adult T cell leukemia patient and healthy controls.
(19) Treatment with trypsin gave essentially one radioactive peptide, the active site peptide, of approximately 2300 molecular weight.
(20) Since the molecular weight of IgG is more than twice that of albumin and transferrin, it is concluded that the protein loss in Ménétrier's disease is nonselective in the sense that it affects a similar fraction of the intravascular masses of all plasma proteins.