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11.
A M Bezborodov 《Prikladnaia biokhimiia i mikrobiologiia》1992,28(6):803-817
The paper is the 48th Bach Lecture presented under the same title. It covers the biochemical mechanisms of the biogenesis of microbial biosynthetic products, role of acetyl-CoA, function of the succinate-glycine cycle, reactions of the hexose-monophosphate pathway of carbon metabolism. The reversible action of hydrolases in enzymatic catalysis and degradation of xenobiotics are discussed. The data on redox reactions are pooled. Such modern biotechnological processes as epoxidation, synthesis of acrylamide and some monomers involved in chemical syntheses of polymers, synthesis of oligosaccharide and fluorine-containing amino acids are considered. Promising commercial applications of biocatalysis are discussed. 相似文献
12.
V. G. Bezborodov 《Entomological Review》2017,97(5):575-583
A comprehensive analysis of the diversity of Yakutian lamellicorn beetles is provided. A total of 54 species from 18 genera, 14 tribes, 14 subfamilies, and 5 families are revealed. The family Ochodaeidae Mulsant & Rey, 1871, the genus Codocera Eschscholtz, 1821, and six species, namely Codocera ferruginea (Eschscholtz, 1818), Aegialia friebi Balthasar, 1935, A. kamtschatica Motschulsky, 1860, Aphodius ater (De Geer, 1774), A. pusillus Herbst, 1789, and A. haemorrhoidalis (Linnaeus, 1758), are recorded in the fauna of Yakutia for the first time. The ecological and zoogeographic features of the Scarabaeoidea of the region are considered. Data on the trophic specialization, phenology and spatial distribution of the species are given. 相似文献
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14.
This investigation examined the exposure of Egyptian infants to Aflatoxin M1 (AfM1) and of lactating mothers to Aflatoxin B1, using AfM1 in human milk as a biomarker for exposure to AfB1. The presence of ochratoxin A (OA) in human milk was also investigated to determine the levels of infants exposure to OA
from human milk. The results indicated that AfM1 was found in 66 (55 %) of 120 human milk samples with a mean of 0.3 ± 0.53 ng/mL (range 0.02 to 2.09 ng/mL). OA was found
in 43 (35.8 %) of 120 human milk samples with a mean of 21.1 ± 13.7 ng/mL (range 5.07 to 45.01 ng/mL), which will cause a
daily intake of OA from human milk exceeding the suggested tolerable dose of 5 ng/kg-1 of OA body weight. On the other side AfM1 was found in 25 % of blood samples (5 out of 20 samples), at a mean of 1.18 ng/mL, but it was detected only in one urine
sample (1 out of 20 samples). OA was detected only in 2 out of 13 blood samples (15.4 %) with an average 3.67 ng/mL. Whereas
OA was not detected in all analyzed urine samples. 相似文献
15.
16.
Jan AM van Laar Jasper H Kappen Paul LA van Daele P Martin van Hagen 《Arthritis research & therapy》2009,11(2):109-3
Behçet's disease is a complex vasculitis of unknown etiology. Abundant neutrophils suggest the involvement of innate immunity. Cytokines are skewed to the T-helper-1 pattern. Few sterile organs are easily accessible for analysis in Behçet's disease. Cañete and coworkers identify inflamed joints as a feasible model and suggest the involvement of innate immunity in Behçet's disease. 相似文献
17.
AB Zarafi AM Emechebe AD Akpa O Alabi 《Archives Of Phytopathology And Plant Protection》2013,46(4):261-268
Pearl millet downy mildew (DM) incidence, severity and yield losses of two pearl millet varieties (local and improved) due to the disease were determined in the field. Significant differences in the disease incidence and severity were recorded in the plots sown with metalaxyl-treated seeds and those sown with non-treated seeds, indicating the efficacy of the fungicide on the fungus. Yield losses due to non-treatment of seeds with metalaxyl was 40.88 and 45.39% in a local variety and 43.00 and 18.60% in an improved variety in the 2000 and 2001 cropping seasons respectively. Significant differences between plots sown with metalaxyl-treated and those sown with non-treated seeds were obtained for other yield components such as 1000-grains weight, panicle length and weight. 相似文献
18.
Andrea Vivian Alvarez-Oxiley Noelita Melo de Sousa Jean-Luc Hornick Kamal Touati Gysbert C van der Weijden Marcel AM Taverne Otto Szenci Jean-François Beckers 《Acta veterinaria Scandinavica》2010,52(1):9
Background
The involvement of placental lactogen (PL) in the regulation of foetal growth has been investigated in different species by in vivo immunomodulation techniques. However, when circulating antibodies are present together with the hormone, the procedure for hormonal measurement becomes considerably complex. The aim of this study was the immunoneutralization of bovine placental lactogen (bPL) concentrations in bovine foetal circulation by direct infusion of rabbit anti-bPL purified immunoglobulins (IgG) via a foetal catheter (in vivo study). The ability of a RIA based on guinea pig anti-bPL antiserum, for the measurement of bPL concentrations in samples containing exogenous rabbit anti-bPL immunoglobulins, was also analyzed in in vitro and in vivo conditions. 相似文献19.
20.
I. B. Utkin M. M. Yakimov L. N. Matveeva E. I. Kozlyak I. S. Rogozhin Z. G. Solomon A. M. Bezborodov 《Folia microbiologica》1990,35(6):557-560
Analysis of spent naphthalene growth media ofPseudomonas fluorescens by GC-MS revealed the presence of salicylate. Gentisate 1,2-dioxygenase and pyrocatechol 1,2-dioxygenase were induced by growth on naphthalene, whereas only pyrocatechol 1,2-dioxygenase was induced during growth on salicylate. These results suggest the existence of alternative degradative routes of salicylate,via gentisate and pyrocatechol, which are involved in the catabolism of naphthalene. 相似文献