| [action of aspergillus sp. on trypanosoma cruzi in vitro]. | | 1979 | 112665 |
| serologic study of pasteurella aerogenes sp n. | the antigenic attributes of pasteurella aerogenes sp n were serologically compared with species of the genera actinobacillus and pasteurella. examination included the tube-agglutination and double-immunodiffusion techniques. the results indicated the possibility of serologically different strains of p aerogenes. antisera prepared from strains of p aerogenes also reacted well with antigens prepared from yersinia pseudotuberculosis (p pseudotuberculosis) and p pneumotropica. | 1979 | 112888 |
| a comparison of the in vitro activity of tobramycin and gentamicin against 6,042 clinical isolates. | 6,042 strains of staphylococcus aureus, streptococcus faecalis, proteus mirabilis, escherichia coli, klebsiella sp. and pseudomonas sp. were tested against tobramycin and gentamicin. among all species studies, except pseudomonas sp, gentamicin turned out to be slightly superior to tobramycin. | 1979 | 113179 |
| herpesvirus papio: state and properties of intracellular viral dna in baboon lymphoblastoid cell lines. | herpesvirus papio (hvp) is an indigenous b-lymphotropic virus of baboons (papio sp.) present in latent form in baboon lymphoblastoid cell lines. it shares cross-reacting viral capsid and early antigens with the epstein-barr virus (ebv), and hvp dna and ebv dna show partial sequence homology. ebv-specific complementary rna was employed here as a probe to investigate the physical state of the hvp dna component in baboon lymphoblastoid cells after fractionation of cellular dna by density gradient c ... | 1979 | 113352 |
| inhibition of the in vitro growth of plasmodium falciparum. i. the effects of immune serum and purified immunoglobulin from owl monkeys. | sera from aotus sp. monkeys (karyotypes ii, iii, and iv) which were immune to plasmodium falciparum have been used to inhibit the in vitro growth of this human malaria parasite. culture conditions used for the assays allowed 50- to 100-fold increases in the number of a+ erythrocytes infected in a 96-hr period in control cultures. although normal monkey serum did not support growth as well as normal human serum, mixtures of normal monkey and human serum were found that did. compared to such contr ... | 1979 | 113460 |
| parasite-related lesions in a bearded seal, erignathus barbatus. | a free-ranging adult male bearded seal (erignathus barbatus) killed by polar bears was salvaged and examined at necropsy. significant findings included diffuse intrahepatic bile duct fibrosis and chronic cholangitis; multiple nodules of chronic fibrosing pancreatitis; and gastric ulcers. trematode eggs (family campulidae) were found in the pancreatic nodules. these eggs and the trematodes that produced them probably caused the pancreatic and liver lesions. phocanema decipiens and contracaecum os ... | 1979 | 113564 |
| bioelectric phenomena in the ototoxicity of nitrogen mustard. | the effects of nitrogen mustard on the electrical potentials of the inner ear were studied, and the results were correlated with the histopathologic findings which have been reported in nitrogen mustard ototoxicity. the endocochlear dc potential (ep) decreased rapidly after an injection of nitrogen mustard (nm). the amplitude of the cochlear microphonics potential (cm) diminished rapidly, and no substantial recoveries were observed. no significant changes in the magnitude of the negative potenti ... | 1978 | 113748 |
| patterns of variability in mineralization of the primate femoral diaphysis. | the purpose of this research was to study intra- and interspecific variability in mineral density in the femoral diaphysis of nonhuman primates. four hundred five sections were taken from five sites along the femoral diaphysis of 34 macaques (macaca sp.), 24 squirrel monkeys (saimirisciureus), and 23 tamarins (saguinus labiatus). the mineral density at eight positions around each section was measured. analysis of variance indicated significant (p less than 0.05) interactions among species, sex, ... | 1979 | 114060 |
| macromolecular composition of a cellulomonas sp. cultivated in continuous culture under glucose and zinc limitation. | the mutant strain of cellulomonas sp. (atcc 21399) was cultivated under glucose and zinc limitation at a variety of growth rates in continuous culture. the growth characteristics and macromolecular composition of the population varied with the limitation imposed and the growth rate. glucose- and zinc-limited cultures maintained a constant relative protein content. the relative ribonucleic acid content increased, whereas the carbohydrate and deoxyribonucleic acid contents decreased with an increa ... | 1979 | 114114 |
| a mutant of anabaena sp. ca with oxygen-sensitive nitrogenase activity. | | 1979 | 114179 |
| [opportunistic fungi in the atmosphere]. | our knowledge in aerobiology has considerably increased in the last 20 years due to new trapping methods. the use of volumetric spore traps permits to accurately analyze the particles suspended in the air and their evolution, while the deposition method gives an incomplete picture of the real air content. the air microflora changes considerably during 24 h: some groups of spores occur in the morning, others in the afternoon and yeast-like organisms during the night. the most common fungi in the ... | 1979 | 114434 |
| [sketch of the habits of the howling monkey (allouatta sp.) and report of the preliminary study of this primate in the tropical biological station of "los tuxtlas" veracruz, mexico]. | | 1977 | 115481 |
| surveys of simian malaria in japan. | the survey of simian malaria in japan which had been conducted since 1965 showed that no japanese monkeys (macaca fuscata fuscata and macaca fuscata yakui) were infected with malaria parasites. most interestingly, however, babesia sp. was found in 4 (4.3%) of 93 macaca fuscata yakui which had been reared in a monkey park. as for the monkeys imported from abroad, plasmodium was only found in macaca irus from southeast asia, namely, p. inui (14.1-25.0%), p. cynomologi (0.6, 3.2%) and p. coatneyi ( ... | 1979 | 116437 |
| nitrogenase activity of rhizobium sp. strains in pure culture in relation to extracellular polysaccharide composition and antigenic affinity. | five strains of slow-growing rhizobium sp. (strains cb756, 32hi, cb562, cb627 and qa549) out of seventy examined developed appreciable nitrogenase activity in pure culture. cb756 and 32hi were serologically indistinguishable and each produced 6-deoxy-l-talose as a major component of its extracellular polysaccharide. they did not share these properties with cb562, cb627 or qa549. | 1978 | 117284 |
| brain trf immunoreactivity during various physiological and stress conditions in the rat. | methanol extracts of several rat tissues (hypothalamus, amygdala, the rest of the forebrain, brain stem and pancreas) were partially purified in sp-cation exchange chromatography and measured in trf radioimmunoassay. it was found that hypothalamic and amygdaloid trf contents were highest during the light period of the day, but brain stem trf had an opposite rhythm. hypothalamic trf content rose after 10 min by 14% (p less than 0.05) when the rats were exposed to transfer stress. during short-tim ... | 1979 | 117391 |
| effect of chlorine substitution on the bacterial metabolism of various polychlorinated biphenyls. | of 36 pure isomers (chlorine numbers 1 to 5) of polychlorinated biphenyls examined, 23 compounds were metabolized by alcaligenes sp. strain y42, and 33 compounds were metabolized by acinetobacter sp. strain p6. the major pathway of many polychlorinated biphenyl isomers examined was considered to proceed through 2',3'-dihydro-2',3'-diol compounds, concomitant dehydrogenated 2',3'-dihydroxy compounds, subsequently the 1',2'-meta-cleavage compounds (chlorinated derivatives of 2-hydroxy-6-oxo-6-phen ... | 1979 | 117752 |
| iso-branched 2- and 3-hydroxy fatty acids as characteristic lipid constituents of some gliding bacteria. | the fatty acids present in the total hydrolysates of several gliding bacteria (myxococcus fulvus, stigmatella aurantiaca, cytophaga johnsonae, cytophaga sp. strain samoa and flexibacter elegans) were analyzed by combined gas-liquid chromatography and mass spectrometry. in addition to 13-methyl-tetradecanoic acid, 15-methyl-hexadecanoic acid, hexadecanoic acid, and hexadecenoic acid, 2- and 3-hydroxy fatty acids comprised up to 50% of the total fatty acids. the majority was odd-numbered and iso-b ... | 1979 | 118159 |
| synthesis of nitrogenase and heterocysts by anabaena sp. ca in the presence of high levels of ammonia. | anabaena sp. ca fails to synthesize heterocysts and nitrogenase when grown with kno3 as the nitrogen source. by contrast, both heterocysts and proheterocysts are synthesized in nh4cl-containing media to a level nearly commensurate with cells grown in the absence of combined nitrogen. the growth rate of the organism in nh4cl-containing media was similar to that obtained with kno3 as the nitrogen source and was independent of the presence of n2 in the atmosphere. thus, our results indicate that th ... | 1979 | 118162 |
| the automicrobic system for urines. | an evaluation of the automicrobic system (ams) for urines (vitek systems, inc.) was carried out under the auspices of the product evaluation committee of the college of american pathologists from the period june 1977 through october 1978. data generated during this evaluation indicated that, when comparing the ams methodology to our clinical microbiology laboratory methodology, a 37% time saving could be realized by utilizing the ams. quantitation with the ams showed a 99% correlation with the c ... | 1979 | 118176 |
| comparative bactericidal activities of beta-lactam antibiotics determined in agar and broth media. | comparative bactericidal activities were determined utilizing a relatively large number of test strains, in both agar and broth media, with special reference to the time of exposure of the bacteria to certain beta-lactam antibiotics. it was apparent that the activities increase with time. the concentrations producing a 99.9% kill with cephalothin for escherichia coli, klebsiella sp., and carbenicillin for pseudomonas aeruginosa were higher in broth than in agar. in contrast, those of benzylpenic ... | 1979 | 118959 |
| cadmium and zinc sensitivity and tolerance in bacillus subtilis subsp. niger and in a pseudomonas sp. | the action of cd2+ and zn2+ on bacillus subtilis subsp. niger atcc 9372, and on a pseudomonas sp. (possibly pseudomonas fluorescens), isolated from cadmium-polluted soil has been determined and compared with results obtained previously with klebsiella aerogenes. in liquid medium the lag and the mean generation time of bacillus subtilis subsp, niger increased with increasing cd2+ or zn2+ concentrations whereas only the total biomass of the pseudomonas sp. was affected. nevertheless, the responses ... | 1979 | 119131 |
| the role of temperate bacteriophage sp beta in prophage-mediated interference in bacillus subtilis. | virulent bacteriophage phi 1 grows on a variety of bacillus subtilis strains, mutants of this virus which abortively infect the transformable bacillus. b. subtilis 168, while retaining the ability to productively infect related bacteria have been found. in the present study, we demonstrate that the inability of one such variant, phi 1m, to develop normally in strain 168 is mediated by cryptic prophage sp beta. the latter is a temperate bacteriophage which is carried by b. subtilis 168 and most s ... | 1979 | 119575 |
| studies on the role of calcium ions in acetylene reduction (nitrogen fixation) by gloeocapsa sp. 1430/3 [proceedings]. | | 1979 | 119655 |
| the short-term effect of transfer from light to darkness on acetylene reduction (nitrogen fixation) by cultures of gloeocapsa sp. 1430/3 [proceedings]. | | 1979 | 119659 |
| the prophage of sp beta c2dcitk1, a defective specialized transducing phage of bacillus subtilis. | the defective specialized transducing phage sp beta c2dcitk1 carries two known bacterial genes, kaua and citk, as well as sp beta hage markers including the heat-sensitive repressor allele, c2. some phage genes (including essential ones) are missing. when sp beta c2dcitk1 transduces sp beta-sensitive cells of bacillus subtilis, the defective prophage is inserted into sites in the homologous bacterial dna of the attsp beta-kaua-citk region of the recipient chromosome. during the growth of these t ... | 1979 | 119663 |
| ultastructural studies of sarcocystis sp. from the camel (camelus dromedarius) in egypt. | by means of electron microscopy a study has been made on sarcocystis from 29 camels (camelus dromedarius) in egypt. in oesophagus and diaphragm muscles sarcocysts have been observed. the micromorphology of metrocytes, merozoites as well as of the cyst wall has been described. | 1979 | 120047 |
| biological activity of an antibiotic produced by myxococcus coralloides. | a strain of myxococcus coralloides was isolated which produced an antibiotic active against gram-positive bacteria and also against neisseria sp at high levels of antibiotic. the antibiotic was bactericidal on sensitive growing bacteria. it was inactive on non-growing cells and also on cells whose growth has been stopped by addition of chloramphenicol. strains of s. aureus resistant to several antibiotics, including penicillin and ampicillin, were also sensitive to this antibiotic. | 1979 | 120482 |
| treponema succinifaciens sp. nov., an anaerobic spirochete from the swine intestine. | the morphology, the general physiological characteristics, and the energy-yielding metabolism of an obligately anaerobic spirochete isolated from the colon of a swine were studied. electron microscopy showed that the helical spirochetal cells possessed an outer sheath, a protoplasmic cylinder, and 4 periplasmic fibrils in a 2-4-2 arrangement. the spirochete grew in an atmosphere of n2 in prereduced media containing a carbohydrate, nahco3, rumen fluid, yeast extract, peptone, l-cysteine, and inor ... | 1979 | 120726 |
| ciliate protozoa in the rumen of brazilian water buffalo, bubalus bubalis linnaeus. | total numbers and distribution of genera, subgenera and species were determined for the ciliate protozoa in rumen contents of 4 brazilian water buffalo bubalus bubalis linnaeus. the fauna of one animal, housed in close proximity to european and zebu-type cattle, differed considerably from that of the remaining animals, which were somewhat isolated on a large ranch. several of the protozoan species observed in the semi-isolated animals were first described in rumen contents from humped indian cat ... | 1979 | 120894 |
| biochemical studies on sporulation in blue-green algae. i. glycogen accumulation. | glycogen accumulation in vegetative cells of anabaena sp. is demonstrated to be a light-dependent process. no glycogen accumulation is found in dark or in cultures supplemented with 10(-5) m dcmu in light. large quantities of glycogen accumulate in cells undergoing sporulation and the amount increased with the onset of maturation of spores. | 1979 | 121000 |
| the monkey's prefrontal cortex functions in motor programming. | a new experimental approach is presented which resulted in clarification of the specific functions of the monkeys prefrontal cortex. monkeys with chronically implanted transcortical nonpolarizable electrodes were trained on delayed response (dr) and visual delayed matching-to-sample (dms) tasks. the onset of the trial for each group depended upon on-line computer detection of one of the specified events: fn surface-negative steady potential shifts (sps) from principalis cortex; mn a similar ... | 1979 | 121197 |
| differentiation of genera of the coryneform bacteria. | a scheme of the generic structure of the group of coryneform bacteria, including the genera arthrobacter, brevibacterium, cellulomonas, corynebacterium, and rhodococcus, is suggested. morphological, chemotaxonomic (presence and stereochemical form of diaminopimelic acid, lipid a, and l-arabinose), and physiological features were used as diagnostic criteria. the position of microbacterum and mycococcus and of coryneforms with a nocardial wall but giving a positive hugh-leifson anaerobic test, and ... | 1979 | 121544 |
| gas chromatographic method for the determination of valproic acid in human plasma. | a gas chromatographic method has been developed for the routine monitoring of valproic acid (vpa) in human plasma samples. two compounds, 2-ethylpentanoic acid (epa) and 2-propylhexanoic acid (pha), were synthesized and evaluated as internal standards together with cyclohexane carboxylic acid (chca), a commonly employed internal standard. crystalline barium salts of vpa, epa, and pha were prepared, which enabled preparation of standard solutions of high accuracy for use in calibration experiment ... | 1979 | 122159 |
| [invasion of mosquitoes by microsporidium of thelohania sp. in central kazakhstan]. | | 1975 | 123030 |
| a study of hospital acquired staphylococcal diseases by means of phage typing in ribeirão preto, sp, brazil. | | 1975 | 123654 |
| [heterotylenchus simplex sp. n. (nematoda, sphaerulariidae)--a parasite of the zoophilic fly morellia simplex lw]. | a new species of nematodes, heterotylenchus simplex spn n., was found in zoophilous flies of morellia simplex caught from cows in the bakhchisaray region of the crimea. the above species differs from all known ones of the genus heterotylenchus in the presence of the quadricolumella in parthenogenetic females and rudiment of the posterior uterine branch in gamogenetic females. h. simplex is close in its biology and ecology to h. autumnalis and in its morphology - to h. aberrans. | 1975 | 124843 |
| controlled test of anthelmintic activity of levamisole administered to calves via drinking water, subcutaneous injection, or alfalfa pellet premix. | a controlled test of the activity of 3 formulations of levamisole, at the dose level of approximately 8 mg/kg, against naturally occurring infections of gastrointestinal parasites and lungworms was made in 24 calves allotted to 4 groups of 6 calves each. levamisole was administered to group i calves in the drinking water, to group ii calves by subcutaneous injection, and to group iii calves by feeding alfalfa pellets mixed in corn silage; group iv calves were nontreated controls. group i calves ... | 1975 | 125055 |
| activity of eight antimicrobial agents in vitro against n. gonorrhoeae. | the sensitivity of four groups of gonococcal strains to ampicillin (am), penicillin (p), tetracycline (t), rifampicin (ri), spectinomycin (sp), sulphamethoxazole (su), trimethoprim (tr), and a combination of su and tr in the ratio 5:1 (su/tr 5:1) has been determined. the various groups of strains were isolated from male civilians (mc), female civilians (fc), and sailors (s) in rotterdam (r) in 1972, and from fc in amsterdam (a) in 1967. the s-r strains, which may be regarded as mainly imported, ... | 1975 | 125618 |
| [new filamentous photosynthesizing green bacteria with gas vacuoles]. | the plankton of the stratified karelian lakes was found to contain new large filamentous photosynthetic green bacteria with gas vacuoles; their vertical distribution in the lakes was studied, and also the ultrathin structure, the type of pigment (bacteriochlorophyll d), and the physiology. the bacteria have been classified as a new genus chloronema nov. gen. within the family chloroflexaceae, with two new species c. spiroideum nov. sp. and c. giganteum nov. sp. | 1975 | 125847 |
| [new genus of actinomycetes: excellospora gen. nov]. | morphological, cultural and physiological properties of two strains of soil thermophilic actinomycetes were studied. these strains were compared to the actinomycetes of related genera and were found to be close to micropolyspora and actinomadura. however, they differed from both genera by the structure of the sporiferous apparatus, from micropolyspora by the type of the cell wall, and from actinomadura by the fatty acid composition of lipids of the mycelium. a new genus of actinomycetes, excello ... | 1975 | 125848 |
| [pleistophora carpocapsae sp. n. (microsporidia, nosematidae)--a parasite of the codling moth]. | | 1975 | 127972 |
| [new species of chiggers, straelensia taurica sp. n. (acarina, leeuwenhoekiidae, apoloniimae)]. | a new species of the trombiculid mites, straelensia taurica sp. n., is described. the mites were found on the hare lepus europaeus in the crimea. the new species is closely related to straelensia europaea vercoammen--grandjean et kolebinova, 1968 and s. africana vercammen--grandjean, 1971 but differs in the measurments: size (ip=558), galeal seta (ga=b) and other characters. | 1975 | 130604 |
| [new species of nematode, skrjabillanus schigini sp. n. (camallanata: skrjabillanidae), from the white amur]. | a description and differential analysis of the nematode skrjabillanus schigini sp. n. are given. the species was found in the serous membrane of the swim bladder and mesentery of the white amur from pond farms of the krasnodar territory. the new species differs from s. amuri from the same host in having four rather than five pairs of pedunculated papillae supporting the caudal alae; in the presence of one rather than two chitinous plate in the cloaca; by the parasitism in the swim bladder wall r ... | 1975 | 130606 |
| me2+-(13 s) atpase from micrococcus sp. atcc 398e. the effect of trypsin on the purified enzyme. | by trypsin treatment of highly purified atpase (ec 3.6.1.3) from micrococcus sp. atcc 398e, two enzyme modifications have been obtained. (i) atpase ta, which has about the same activity as untreated atpase. (ii) a protein complex ti, which lacks atpase activity, but nevertheless binds atp as shown by affinity chromatography. trypsin primarily shortens the alpha-chains of the "native" enzyme to alpha-chains and removes the gamma-subunit, thus yielding atpase ta. the formation of the protein compl ... | 1976 | 131581 |
| [streptoverticillium krissii n. sp. forming teleocidins a and b]. | the taxonomy of the actinomycete lia-0371, regarded as a new species streptoverticillium krissii n. sp., was studied. the culture has straight sporophores assembed into verticils, gray-cream-coloured aerial mycelium and brown colonial mycelium, and produces pentaene 0371, ichtiocide t-0371, and a soluble pigment. physico-chemical analysis has shown that ichtiocide t-0371 is identical to teleocidins a and b. | 1975 | 131898 |
| three new species of gyrodactylus (monogenoidea) from varicorhinus capoeta gracilis (keyserling) from the river lenkoranka. | three new species of gyrodactylus nordmann, 1832 are described from varicorhinus capoeta gracilis (keyserling) from the river lenkoranka (azebaijan ssr) as follows: g. varicorhini sp. n., g. capoetai sp.n. and g. mikailovi sp.n. | 1976 | 132393 |
| two new species of gyrodactylus (monogenoidea) from schizothorax intermedius mcclelland from the river kafirnigan. | two new species of gyrodactylus, namely g. kafirniganensis sp. n. and g. hemivicinus sp. n., are described from the fins and nostrils ofschizothorax intermedius from the river kafirnigan (tajik ssr). | 1976 | 132394 |
| isolation and characterization of membranes from a hydrocarbon-oxidizing acinetobacter sp. | membranes were isolated and purified from nutrient broth-yeast extract- and hexadecane-grown cells of acinetobacter sp. strain ho1-n. two membrane fractions were isolated from nutrient broth-yeast extract-grown cells, the cytoplasmic membrane and the outer membrane. in addition to these two membrane fractions, a unique membrane fraction was isolated from hexadecane-grown cells (band 1) and characterized as a lipid-rich, low-density membrane containing high concentrations of hexadecane. the outer ... | 1976 | 132429 |
| [new cestode, fimbriarioides tadornae sp. n. from the sheldrake, tadorna tadorna, and its development in the intermediate host]. | a new species of cestodes, fimbriarioides tadornae sp. n., is described from tadorna tadorna from the lake tengiz (central kazakhstan). artemia salina is an intermediate host of the above cestode. the development of f. tadornae from the oncosphere to the invasional cysticercoid under conditions prevailing in the lake tengiz (water salinity of 65% 0, average temperature of 22 degrees c) lasts 12 to 13 days. | 1976 | 133318 |
| [rhinonyssid mites (gamasoidea : rhinonyssidae), parasites of rails in the area of the lenkoran wintering site]. | in birds of the order ralliformes inhabiting the southwestern part of the caspian sea there were found four species of mites of the family rhinonyssidae, parasites of the nasal cavity: sternostoma fulicae fain et bafort and rallinyssus caudistigmus strandtmann in fulica atra l., r. caspicus sp. n. in gallinula chloropus (l.), r. gallinulae fain in porphyrio polyocephalus (lath.). | 1976 | 133322 |
| membrane-bound f1 atpase from micrococcus sp. atcc 398e. purificationa and characterization ny affinity chromatography. | a chemically reactive atp analogue, 6-[(3-carboxy-4-nitrophenyl)thio]-9-beta-d-ribofuranosylpurine 5'-triphosphate (nbs6itp) has been synthesized. it has the ability to form stable thioether bonds between the 6-position of the purine ring and aliphatic mercapto groups. the nucleotide moiety of the reagent has been covalently bound to agarose, via iminobispropylamine and n-acetyl-homocysteine as space with the purpose of producing an affinity chromatography material. the affinity matrix binds sol ... | 1976 | 134891 |
| effect of antirheumatic drugs on neutral protease from human leucocyte granules. | the inhibitory effect of 38 antirheumatic and other agents on purified neutral protease from human polymorphonuclear leucocytes has been studied by determining the decrease in enzyme activity on z-ala-nph as substrate. analgesics, salicylates, cytostatic agents and steroids, as well as d-penicillamine, colchicine, allopurinol, chlorzoxazone and chlorpromazine, either had no effect on neutral protease or inhibited it only to a very small extent. typical antirheumatic agents like gold and pyrazolo ... | 1976 | 136142 |
| the activity of four antimicrobial agents. including three nitroimidazole compounds, against bacteroides sp. | forty strains of bacteroides sp. were tested against three nitroimidazole compounds, metronidazole, tinidazole and nimorazole and the aminoglycosidic antibiotic spectinomycin. the effect of altering the inoculum and the presence of serum upon the minimum inhibitory concentration (mic) was also noted. the three nitroimidazole compounds were all very active (average mic = circa 0.25 mg/l). tinidazole was twofold more active. the mic of spectinomycin was 32 mg/l. | 1977 | 137803 |
| sp-10 bacteriophage-specific nucleic acid and enzyme synthesis in bacillus subtilis w23. | bacillus subtilis w23 was infected with a clear-plaque variant of sp-10 phage, namely, sp-10c. exogenous thymidine was not incorporated into phage dna (even in the presence of deoxyadenosine), nor was there any transfer of thymidine nucleotides from bacterial to viral dna. the lytic program was unaffected by concentrations of 5-fluorodeoxyuridine sufficient to reduce bacterial dna synthesis by greater than 95%. although these data are consistent with the interpretation that thymidine nucleotides ... | 1977 | 137989 |
| formation of benzoic acid and p-hydroxybenzoic acid in the blue green alga anacystis nidulans: a thylakoid-bound enzyme complex analogous to the chloroplast system. | the photosynthetic procaryote anacystis nidulans converts l-phenylalanine and l-tyrosine into benzoic acid and p-hydroxybenzoic acid, respectively. results obtained with thylakoid fractions support the hypothesis that the reaction sequence is catalyzed by thylakoid-bound enzyme complexes consisting of phenylalanine ammonia-lyase and benzoate synthase of tyrosine ammonia-lyase and p-hydroxybenzoate synthase, respectively. btoh complexes do not accept phenylacetic acids as substrates, and cinnamic ... | 1976 | 138288 |
| [index of fibrinolysis with new fibrin plate (author's transl)]. | plasminogen-free fibrin plate (fp) which was made from treated commerical bovine fibrinogen with lysine-sepharose was developed in our laboratory. this new fibrin plate showed the following specificities. a) this new fibrin plate did not show any lysis with high amount of streptokinase and urokinase (10,000 u/ml and 500 u/ml). b) the concentrations of its substrate was the same as standard plate (sp) and its substrate was not denatured compared with heated plate (hp). c) the activity of plasmin ... | 1977 | 140239 |
| interactions of alpha1-acid glycoprotein with the immune system. i. purification and effects upon lymphocyte responsiveness. | alpha1-acid glycoprotein (aag) is a constituent of normal serum which is elevated in concentration in the acute phase of inflammation; its physical and chemical properties have been defined but its biological function is uncertain. in the present study, the effect of aag on the proliferative response of lymphocytes to several different stimuli was determined. for this purpose aag was prepared by precipitation of human ascites fluid with sulphosalicylic acid and passage of the supernate through s ... | 1977 | 142068 |
| [thelohania volgensis sp. n. (microsporidia), a parasite of larvae of blood-sucking mosquitoes]. | | 1977 | 142949 |
| [new species of microsporidia - thelohania assovi sp. n. (microsporidia, nosematidae) from the larvae of black flies]. | a new species of microsporidians, thelohania assovi sp. n., was found in population of larvae of odagmia sp. inhabiting mountain rivers of tien-shan and south-eastern kazakhstan. the infection of larvae with this species varies from single individuals to 18-20% while pupae are infected only with single speciments. the species differes from all known members of this genus in a number of characters. size of 50 measured spores varied from 4.4-7.0 x 2.5-3.8 in live specimens to 3.8-6.4 x 2.3-3.8 mem ... | 1977 | 142950 |
| [land molluscs--intermediate hosts of trematodes of the family microphallidae travassos, 1920]. | encysted metacercariae of microphallus sp. were found in the land mollusks bradybaena duplocincta and jaminia potaniniana asiatica collected on the slopes of tien-shan. the above mollusks are first reported as intermediate hosts of microphallids. the meta cercariae found were fed to white mice, golden hamsters, chickens and nestlings of sparrows and starlings. maritae developed only in white mice and golden hamsters. mature trematodes containing 14 to 35 eggs in the uterus were found in the smal ... | 1977 | 143645 |
| effect of three nematicides on the growth of some phytopathogenic bacteria and fungi. | the effect of three nematicides, aldicarb, fensulfothion, and phenamiphos at four concentrations (1, 5, 25, and 125 ppm) was tested on the growth of five bacteria, agrobacterium tumefaciens, corynebacterium fascians, erwinia carotovora, pseudomonas solanacearum, and streptomyces scabies and four fungi, fusarium oxysporum f. sp. vasinfectum, fusarium solani, rhizoctonia solani, and sclerotium bataticola. of the bacteria, p. solanacearum was most affected by the chemicals at all concentrations, wh ... | 1977 | 143857 |
| f1-atpase from micrococcus sp. atcc 398. purification by ion-exchange chromatography and further characterization. (auto)proteolysis and dissociative effects. | the preparation of highly purified f1-atpase from micrococcus sp. atcc 398 by application of deae-sepharose cl-6b chromatography as final step is described. this enzyme consists of five subunits of different molecular weight: alpha (65000), beta (55000),gamma (35000), delta (20000), and epsilon (17000). disc electrophoresis on 5% polyacrylamide gels removes the epsilon-polypeptide yielding an active atpase complex with four different subunits: alpha, beta, gamma, delta. additionally, by variatio ... | 1977 | 145365 |
| [the influence of contralateral acoustic stimulation on the summating potential in the human cochlea (author's transl)]. | in registering stimulus-related potentials from the promontory in man one frequently finds so-called positive or negative summating potentials (sp). these sp's are influenced by acoustically induced activity in the crossed olivocochlear bundle (cocb): cocb activity causes a negativation of the sp. a tentative explanation will be given. | 1977 | 145529 |
| [dactylogyrus tauricus sp. n. (monogenoidea: dactylogyridae), a new species of monogeneans from alburnoides bipunctatus fasciatus]. | | 1978 | 146182 |
| the functional tryptophan and tyrosine residues of f1 atpase of micrococcus sp. atcc 398. | | 1978 | 146676 |
| mapping of the resistance genes of the r plasmid nr1. | the drug resistance genes on the r-determinants component of the composite r plasmid nr1 were mapped on the ecori restriction endonuclease fragments of the r plasmid by cloning the fragments using the plasmid rsf2124 as a vector. the sulfonamide (su) and streptomycin/spectinomycin (sm/sp) resistance genes are located on ecori fragment g of nr1. the expression of resistance to mercuric ions (mer) requires both ecori fragment h and i of nr1. the expression of chloramphenicol (cm) and fusidic acid ... | 1978 | 146819 |
| [streptoverticillium griseoviridum n. sp., a producer of the candidin-amphotericin b group, antifungal heptaene nonaromatic antibiotic 0185]. | an actinomyceteous strain lia-0185 producing a heptaenic non-aromatic antibiotic of the candidin type was isolated from a soil sample taken in the georgian ssr under the programme of screening antifungal antibiotics. the taxonomic study of the strain showed that it belonged to the series of viridoflavum and had the following main taxonomic features: the sporophores in the whorls, straight, remote: the aerial mycelium from yellow to dark-olive-grey; the substrate mycelium olive; the soluble pigme ... | 1978 | 147047 |
| [anomalohimalaya lotozkyi sp. n., a new species of ixodid ticks from the peter the first range (ixodoidea, ixodidae)]. | anomalohimalaya lotozkyi sp. n., the second species of this genus, was found in tadzhikistan, peter i ridge, at the height of 2700 m above the sea level in rocky locality with xerophilous vegetation on alticola argentatus. in june, 1977 there were found larvae and nymphs of the species. after feeding larvae and then nymphs females and males were obtained. all phases of the life cycle differ distinctly from those of the type species an. lama hoog., kais. et mitch., 1970, from himalayas. the diagn ... | 1978 | 151845 |
| [pleistophora ladogensis sp. n., a microsporidian (protozoa, microsporidia) from the musculature of the burbot, lota lota, and of the smelt, osmerus eperlanus eperlanus ladogensis]. | the parasite develops inside the fibres of the cross-striated musculature. on the histologic sections of the affected tissue most young stages of p. ladogensis are represented by 2--6 nucleic cells 5--6 mu in size. mature pansporoblasts have a thick and solid membrane. their average size is 43 (18--60) mu. the number of spores in pansporoblasts is over 16. live spores are egg-shaped and are 5.4 (5.0--5.8).2.9 (2.7--3.3) mu in size. the length of the polar filament is 100 to 180 mu. | 1978 | 151848 |
| granulomatous and neoplastic diseases of the skin of horses. | lesions encountered in a clinicopathological study of cutaneous lesions resembling 'swamp cancer' from horses in north queensland included 37 cases of subcutaneous phycomycosis, 5 of which were also infected with habronema sp larvae. in addition 9 cases of primary cutaneous habronemiasis, 58 sarcoids, 12 fibromas, 8 fibrosarcomas, 10 squamous cell carcinomas, 4 haemangiomas, 3 melanomas, 1 papilloma, 1 palpebral adenocarcinoma and 7 cases of simple granulation were diagnosed. subcutaneous phycom ... | 1978 | 152106 |
| galactose-6-sulfatase from actinobacillus sp. ifo-13310 and its action on sulfated oligosaccharides from keratan sulfate. | a 6-sulfatase specific for sugasr of the galactose configuration was purified 81-fold from the crude extract of actinobacillus sp. ifo-13310. this preparation contained activity towards both n-acetylgalactosamine 6-sulfate and galactose 6-sulfate (relative activity, 2.4 : 1). the enzyme also release inorganic sulfate from the non-reducing galactose 6-sulfate end group of a trisaccharide disulfate prepared from keratan sulfate by sequential degradation with endo-beta-galactosidase, n-acetylglucos ... | 1978 | 153151 |
| physiological properties of muscle spindles in dorsal neck muscles of the cat. | 1. single-fiber recording was used to examine the properties of 107 spindle endings in cat biventer cervicis (bc) and complexus (cm) muscles. responses of receptors were examined following muscle contraction and ramp and hold stretch. twenty-two endings in splenius (sp) were also examined, but their responses could not be quantitated because the anatomy of sp prevented the application of appropriate stretches. 2. conduction velocitites of spindle afferents ranged from 13 to 90 m/s. endings with ... | 1979 | 154558 |
| the value of the electromagnetic flow probe in experimental and clinical microvascular anastomosis. | the gould statham blood flowmeter model sp 2204 has been used to assess microanastomosis in 25 superficial femoral arteries of rabbits. when a pulsatile wave form has been achieved this correlates with a satisfactory anastomosis and vice versa. the digital read out of estimated volume flow past the anastomosis made by this instrument will need further evaluation. we are persisting with the electromagnetic flow probe in the assessment of our clinical microvascular anastomoses at operation. | 1979 | 154876 |
| ostertagiosis in captive bison in new york state: report of nine cases. | type ii ostertagiosis was found at necropsy in 9 american bison (bison bison) from 3 farms in new york. clinical signs included severe diarrhea, emaciation, unthrifty coats, anemia, and weakness. in severely affected animals, the macroscopic abomasal changes consisted of irregular thickening and edema of the mucosa, resulting in a pebbly or morocco-leather appearance. microscopically, many gastric pits and glands were dilated, lined by hyperplastic epithelium, and contained nematode sections or ... | 1979 | 157257 |
| differential toxicities of mercury to bacteria and bacteriophages in sea and in lake water. | mixtures of anionic hgcl3-/hgcl4(2)-complexes were less toxic to terrestrial bacteria (erwinia herbicola, agrobacterium tumefaciens), to marine bacteria (acinetobacter sp., aeromonas sp.), and to bacteriophages (phi 11 m 15 of staphylococcus aureus and p1 of escherichia coli) than were equivalent concentrations of hg as cationic hg2+. the toxicity of 1 ppm hg to a. tumefaciens. aeromonas sp., and phi 11 m 15 was less in seawater than in lake water. inasmuch as the hg-cl species are formed in env ... | 1979 | 161510 |
| microbial assimilation of hydrocarbons. i. the fine-structure of a hydrocarbon oxidizing acinetobacter sp. | 1. the fine-structure analysis of the hydrocarbon oxidizing microorganism, acinetobacter sp., demonstrated a cytoplasmic modification resulting from growth on paraffinic and olefinic hydrocarbons. 2. intracytoplasmic hydrocarbon inclusions were documented by electron microscopy with chemical identifications obtained by gas chromatography and x-ray diffraction. 3. these results demonstrate the ability of a microorganism to accumulate hydrocarbon substrates intracellularly which, in turn, indicate ... | 1975 | 163624 |
| alterations in svt2 cell transfer rnas in response to cell density and serum type. | the chromatographic elution profiles of trna-a sn, trna-a sp, trna-h is and trna-t y r from sv40-transformed balb-3t3 cells grown in fetal calf serum or cald serum-supplemented media have been examined. the relative proportions of certain of the isoaccepting species of these four trnas are altered in a similar fashion depending on the serum type. it is suggested that the elution profile alterations reflect the extent of modifications of a specific g residue to the minor nucleoside q, and that th ... | 1975 | 164245 |
| responses of electrical potential, potassium levels, and oxidative metabolic activity of the cerebral neocortex of cats. | we measured simultaneously the oxidative metabolic activity, monitored as the tissue fluorescence attribute to intramitochondrial nadh, the extracellular potassium level with ion-selective microelectrodes, and the focal extracellular electrical potential, of one site in intact cerebral cortex of cats. when the cerebral was stimulated by trains of repeated electric pulses applied either directly to its surface or to an afferent pathway, the corrected cortical fluorescence (f-r) declined indicatin ... | 1975 | 164265 |
| studies on growth, nitrogen fixation and protein synthesis in a blue-green alga calothrix sp. | | 1975 | 164760 |
| desferrioxamine b, an inhibitor of escherichia coli motility, reversing the stimulating effect of cyclic adenosine 3',5'-monophosphate. | a substance inhibiting escherichia coli motility was isolated by "motilometry" assay from the culture broth of streptomyces sp. strain nr9gg8 and was found to be identical with desferrioxamine b. its inhibitory effect was reversed by cyclic adenosine 3',5'-monophosphate (camp), while the motility stimulation by camp was diminished by this inhibitor. its effects on various enzymes involved in camp metabolism of function of camp were examined. | 1975 | 166612 |
| chemical mutagenesis of fusarium oxysporum f. sp. lycopersici: non-selected changes in pathogenicity of auxotrophic mutants. | single and multiple auxotrophic mutants of the fusarium oxysporum f. sp.lycopersici strains which cause fusarium crown-rot and fusarium wilt of tomato were obtained by chemical mutagenesis with nitrous acid, nitrosoguandidine and ethylmethaneulphonate. the mutagenesis and selection procedures, adapted for use with a plant pathogenic fungus, are described. changes in pathogenicity were observed when the auxotrophs were compared with the wild type but no correlation was observed between changes in ... | 1975 | 167104 |
| parasitology survey and seroepidemiology of amoebiasis in south kalimantan (borneo), indonesia. | a parasitology surevy was conducted among inhabitants of 7 villages in 3 regencies in south kalimantan province, indonesia. a total of 2,169 stool specimens, 2,756 blood smears and 1,027 serum specimens were obtained, representing samples from approximately 10%, 12% and 5% of the population, respectively. one to 8 different intestinal parasitic infections were detected in 97% of the people. those parasites most frequently found were trichuris trichiura (83%), ascaris lumbricoides (79%), and hook ... | 1975 | 167454 |
| [myrianthus sp. (pal.-beauv.) of the ivory coast, cough suppressants]. | | 1975 | 167645 |
| serological responses of broiler-type chickens, with and without newcastle disease and infectious bronchitis vaccine, to experimental infection with mycoplasma synoviae by foot pad, air sac and aerosol. | serum plate (sp) and tube agglutination (ta) reactions and geometric mean mycoplasma synoviae (ms.) hemagglutination-inhibition (hi) titers were determined on chickens infected at 21 days of age with ms. by foot pad, air sac and aerosol. one-half had been given newcastle disease (nd) and infectious bronchitis (ib) vaccine in the water at 20 days of age, and the other half had not been vaccinated with nd and ib vaccine. blood was taken at 3, 4, 6 and 8 weeks after ms. infection. geometric mean hi ... | 1975 | 168564 |
| brain catecholamines, spontaneous bioelectrical activity and aggressive behavior in ants (formica rufa). | the effects of dopamine (da), 1-dopa, diethyldithiocarbamate (ddtc) and haloperidol on aggressive behavior and spontaneous bioelectrical activity of the ant (formica rufa) were studied. drugs such as da, 1-dopa and ddtc increased mutual aggressivity in ants while it failed to change aggression directed towards other species of insects (e.g., the beetle geotrupes sp.). the amplitude of eeg waves and the amplitude of neuronal discharges within the protocerebrum decreased after administration of bo ... | 1975 | 168591 |
| [a new butyric acid-producing bacteroides species: b. splanchnicus n. sp. (author's transl)]. | three butyric acid-producing saccharolytic bacteroides cultures (1651/6, bm 158, and ipp 3751) were described by werner and reichertz in 1971 (zbl.bakt.hyg., i. abt. orig. a 217,206-216). since then, 6 strains closely resembling 1651/6 were isolated from stool specimens and surgically removed appendices. in the present communication, strains 1651/6, s2/34, s3/38, s4/28, s6/6, a5/2 are described as members of a new species, bacteroides splanchnicus n.sp. the strains were morphologically very simi ... | 1975 | 168701 |
| antimicrobial susceptibility of clinical isolates of gram-negative bacilli. | no one can doubt the increased incidence of gram-negative bacillary infections and the importance of an awareness of this increase. today's hospital, where one finds aggressive surgery, patients with multiple indwelling polyethylene lines and foley catheters, and widespread use of prophylactic antibiotics, serves as a haven for resistant gram-negative bacilli. twenty-five strains of escherichia coli, klebsiella sp, enterobacter sp, pseudomonas sp, indole-negative proteus sp, indole-positive prot ... | 1975 | 169593 |
| the preparation of a bacterial collagenase containing negligible non-specific protease activity. | a three stage procedure for the purification of crude bacterial collagenase is described. the three stages were ion exchange chromatography on sp-sephadex and deae-cellulose, followed by molecular sieve chromatography on sephadex g-200. the end product was eluted from sephadex g-200 as a single peak of absorbance at 280 nm, and a single zone of activity against gelatin. the active eluate was divided into two halves, designated fraction 1 and 2 collagenase. their activities were greater than thos ... | 1975 | 170602 |
| perchloric acid-soluble proteins and protein-bound hexoses in serum and tissues of normal, hypo-and hyperthyroid rats. | the total content of perchloric acid-soluble proteins (pca-sp) and protein-bound hexoses (pbh) were studied in blood serum and tissues (liver, kidney, lung, brain) of normal, hypo- and hyperthyroid rats. the results obtained indicate that the hyperthyroid state induced an increase in both pca-sp and pbh in blood serum and studied tissue homogenates, and hypothyreosis causes a decrease of total glycoproteins content in all studied materials. the results were counted per 1 g of protein and in this ... | 1975 | 171894 |
| amino acid sequence of cytochrome c' from the purple photosynthetic bacterium rhodospirillum rubrum s1. | the amino acid sequence of cytochrome c' from the purple photosynthetic bacterium rhodospirillum rubrum s1 has been determined and is consistent with homology to cytochrome c' from the nonphotosynthetic bacterium alcaligenes sp. ncib 11015. there is 29% identity in the chosen alignment of these two proteins. r. rubrum cytochrome c' is composed of a single peptide chain of 126 amino acid residues with a single heme covalently bound near the cooh terminus. there is no sequence similarity to mitoc ... | 1975 | 172499 |
| [isolation of exonuclease a5 preparation free of phosphomonoesterase contamination]. | a method is described of the isolation of exonuclease from cultural medium of actinomyces sp. of coelicolor type, strain 5. the enzyme preparation is practically free from phosphatase activity (the ratio between exonuclease and phosphatase activities is about 10000). chromatography on deae-sephadex after the heating of the enzyme preparation at 37 degrees c and ph 5.5 in the presence of 2-mercaptoethanol was used to elimate the phosphatase contamination. the preparation of exonuclease a5 is suit ... | 1975 | 173427 |
| [kinetics of setting up of a human fecal flora in germ free mice and trial of decontamination of antibiotherapy (author's transl)]. | we have tried in this study to reproduce in germfree mice a bacterial equilibrium observed previously in the gastrointestinal tract of child "l.n.", reared in a plastic isolator. eight bacterial strains were studied. seven had been fortuitously introduced: acinetobacter lwoffi ln1, staphylococcus epidermidis ln2, clostridium perfringens ln3, plectridium anatum ln4, streptococcus bovis ln5, enterobacter cloacae ln6, corynebacterium sp ln7. the eighth strain was purposely administered to the child ... | 1975 | 174472 |
| [effect of polyakov's "prints" on the catalytic properties of an enzyme substrate system]. | silicagels, formed in presence of an enzyme (histidine decarboxylase from micrococcus sp. n.), substrate (l-histidine-hcl-h2o) and inhibitor (imidazole) (so-called polyakov's "print") exhibited specific catalytic properties in the reaction of l-histidine decarboxylation. the "prints" of the enzyme, inhibitor and substrate increased the activity of the enzyme-substrate system studied. the increased activity was probably due to the specific adsorption of imidazole ring of the substrate molecule by ... | 1975 | 175565 |
| survival of monoxenically (crithidia sp.) and axenically grown entamoeba histolytica cultures after storage in liquid nitrogen. | | 1976 | 177374 |
| change in the ratio of cytochrome oxidase activity to nitrite reductase activity of pseudomonas aeruginosa nitrite reductase with the kind of c-type cytochrome used as an electron donor. | the ratio between the nitrite reductase and cytochrome oxidase activities of pseudomonas aeruginosa nitrite reductase [ec 1.9.3.2.] varies with kind of c-type cytochrome used as the electron donor. withe cytochrome c-548, 554 (micrococcus sp.), the nitrite reductase activity is greater than the cytochrome oxidase activity, while the former is smaller than the latter with cytochrome c-554 (navicula pelliculosa). the aerobic oxidation catalyzed by this enzyme of denitrifying bacterial ferrocytoch ... | 1976 | 178646 |
| production of 13beta-alkyl-3-methoxy-8,14-seco-1,3,5(10),9(11)-gonatetraen-14beta-ol-17-ones and 13beta-alkyl-3-methoxy-8,14-seco-1,3,5(10),9(11)-gonatetraen-17alpha-ol-14-ones by microbial enzymes. | for the purpose of producing hydroxy-keto-seco-steroids in which hydroxyl group is attached to a carbon atom having the r-configuration, numerous biochemically active microorganisms were tested without any success. the hydroxysteroid oxidoreductase enzymes of the investigated bacterial, yeast and fungal strains were suitable only for the production of 17beta-ol-14-one and 14alpha-ol-17-one derivatives. the required compounds were prepared by combinations of enzymatic reactions with chemical redu ... | 1975 | 179287 |
| characterization of intracytoplasmic hydrocarbon inclusions from the hydrocarbon-oxidizing acinetobacter species ho1-n. | the ultrastructure of acinetobacter sp. strain ho1-n grown on hydrocarbon and nonhydrocarbon substrates was compared using thin sections and freeze-etching. hydrocarbon-grown cells were characterized by the presence of intracytoplasmic membrane-bound hexadecane inclusions. this membrane did not exhibit a typical unit membrane structure but appeared as a monolayer. the freeze-etch technique revealed the internal structure of the hexadecane inclusions and provided evidence for the presence of a sm ... | 1976 | 179978 |
| urinary excretion of retinol-binding protein (rbp) in rabbit chronically poisoned with cadmium. isolation and partial characterization of rabbit rbp. | studies were conducted to induce urinary excretion of retinol-binding protein (rbp) in the rabbit by long-term administration of cadmium, and to isolate and characterize rabbit rbp. two rabbits were exposed to cd at a dose of 0.8 and/or 1.5mg/kg of body weight by means of subcutaneous injections five times per week. one rabbit excreted large amounts of protein (0.8 to 1.6 g/day) from days 80 to 118. the electrophoretic patterns of the urinary protein showed two fluorescent bands specific for pro ... | 1976 | 179990 |
| classification of micrococci on the basis of deoxyribonucleic acid homology. | the dna homology relationships of 25 micrococci (15 strains of micrococcus, eight strains of sarcina and two strains of staphylococcus) were studied by the deoxyribonucleic acid hybridization method using nuclease s1, an endonuclease specific for single-stranded dna molecules. nineteen of the strains were classified into three groups. group i contained micrococcus lysodeikticus iami056, m. luteus iami1010, m. flavus iami2005 and iami2006, sarcina flava iami2007 and iami1006. s. subflava iami2009 ... | 1976 | 180238 |
| morphology and ultrastructure of a penicillium sp. grown on n-hexadecane or peptone. | the morphology and ultrastructure of a penicillium sp. grown on n-hexadecane or on peptone in shake-culture were compared using transmission and scanning electron microscopy. the fungus grew as hollow mycelial balls surrounding individual hydrocarbon droplets on n-hexadecane and as solid mycelial balls on peptone. a dense layer of fungal mycelium that showed irregular forms, fusion, and increase in hyphal size formed at the hydrocarbon-water interface. inclusions were present in the hexadecane-g ... | 1976 | 180883 |