Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| distribution of bacteria with nitrilotriacetate-degrading potential in an estuarine environment. | attempts to isolate estaurine bacteria capable of metabolizing nitrilotriacetate (nta) as a sole carbon source from areas within escambia bay, fla., were unsuccessful; however, bacteria from freshwater streams and from estaurine surface microlayers were easily adapted to degradation of nta in freshwater medium. a pseudomonas sp. strain (atcc 29600), capable of growth on nta as a sole carbon source, metabolized nta at a reduced rate in a saline medium (15%), compared with a freshwater medium (0 t ... | 1977 | 921265 |
| study on trypanosomes of sciuridae from senegal: trypanosoma (megatrypanum) heliosciuri sp. n. and trypanosoma (herpetosoma) xeri leger and baury, 1922. | this paper describes a new species of trypanosome, trypanosoma (megatrypanum) heliosciuri, from heliosciurus gambianus gambianus, and gives a detailed description of t. (herpetosoma) xeri leger and baury 1922, from euxerus erythropus erythropus, all from senegal, west africa. | 1977 | 921362 |
| on the origin of substance p and glutamic acid decarboxylase (gad) in the substantia nigra. | knife cuts in the frontal plane separating the anterior part of the caudate-putamen from the globus pallidus resulted in marked decreases in substances p levels in the reticular part of the substantia nigra. more caudal knife cuts were required in order to effect maximal decreases in nigral glutamic acid decarboxylase levels. thus, there is a clear anatomical dissociation between the striatal neurons which project to the reticular part of the substantia nigra and which contain sp, and the more c ... | 1977 | 922480 |
| arthrobacter sialophilus sp. nov.; a neuraminidase-producing coryneform. | a new species of arthrobacter is described for which the name a. sialophilus is proposed. the organism was obtained by elective culture from soil using collocalia mucoid, and can readily be induced in replacement minimal media with appropriate substrates, to form the enzyme neuraminidase. it undergoes sphere-rod-sphere morphogenesis, is gram-variable, non-motile, aerobic, catalase-positive, oxidase-negative, fails to release acid or gas from saccharides, has a gc content of 56.0 mol % and can gr ... | 1977 | 922607 |
| infectivity of trypanosoma murmanensis to leeches (johanssonia sp.). | 1977 | 922612 | |
| the eyes of mesopelagic crustaceans: i. gennadas sp. (penaeidae). | the eye of the deep-sea penaeid shrimp gennadas consists of approximately 700 square ommatidia with a side length of 15 micrometer. it is hemispherical in shape and is located at the end of a 1.5 mm long eye stalk. the cornea is extremely thin, but the crystalline cone is well-developed. a clear zone between dioptric structures and the rhabdom layer is absent. a few pigment granules are found within the basement membrane; otherwise they, too, are absent from the eye of gennadas. the rhabdom is m ... | 1977 | 922865 |
| structure of the cell wall of bacillus species c.i.p. 76-111. | an unusual type of bacterial cell wall was encountered in a bacillus strain referred to as bacillus sp. c.i.p. 76-111. the major constituent of this cell wall is a high-molecular-weight anionic protein non-covalently associated to a peptidoglycan-polysaccharide complex. the cell wall appeared as a multilayered structure when sections of whole cells or of isolated cell walls fixed with glutaraldehyde and postfixed with osmium tetroxide were examined by electron microscopy. the correlation betwee ... | 1977 | 923571 |
| gas chromatographic analysis of acetophenone oxime and its metabolites. | a gas-liquid chromatographic (glc) method has been developed for monitoring the metabolic reduction of acetophenone oxime or oxidative metabolism of the corresponding amine, alpha-methylbenzylamine in liver homogenates. the oxime, amine, n-hydroxy-alpha-methylbenzylamine and acetophenone are quantitatively determined after glc separation of components with temperature programming on an sp-2401-db-coated column. the first three compounds were silylated with n,o-bis(trimethylsilyl)-acetamide prior ... | 1977 | 925109 |
| stereospecific synthesis of thymidine cyclic 3',5'-(sp)-and (rp)-phosphorothioates. | 1977 | 925272 | |
| biochemistry of the bacterial catabolism of aromatic compounds in anaerobic environments. | methods of aerobic degradation of aromatic compounds in the biosphere are well understood, but it is only relatively recently that it has been shown how some bacteria can also degrade these substrates in the absence of molecular oxygen. this occurs by photometabolism (athiorhodaceae), nitrate respiration (pseudomonas and moraxella sp.) and methanogenic fermentation (a consortium) in which the benzene nucleus is first reduced and then cleaved by hydrolysis to yield aliphatic acids for cell growth ... | 1977 | 927513 |
| nocardia species as a possible cause of ovine abortion. | an instance of ovine abortion is described in which focal placental lesions were caused by a gram-positive branching filamentous organism. the organism was present in well oxygenated tissues and so is thought more likely to have been a nocardia sp than an actinomyces sp. | 1977 | 928981 |
| on a triple infection of strigeid metacercariae in an indian fresh-water fish, xenentodon cancilla. | three new species of strigeid metacercariae viz., neascus hoffmani n. sp., neascus nanaksagarensis n. sp. and tetracotyle aglandulata n. sp. are described here from a fresh-water fish, xenentodon cancilla (ham.); of these, the former two resemble n. xenentodoni pandey, 1970 as well as n. hepatica chakrabarti, 1970 while the latter one t. xenentodoni chakrabarti, 1969. - n. hoffmani and n. nanaksagarensis are pharyngeate forms and each has its own pattern of reserve excretory system. n. hoffmani ... | 1977 | 931123 |
| trypanosoma (megatrypanum) samueli n. sp., a trypanosomatidae isolated from monodelphis domesticus (wagner, 1842) (marsupiala). | 2007 | 931316 | |
| [metastrongylidae parasites of european soricidae. description of paracrenosoma combesi n. sp., from crocidura russula hermann, 1780 (author's transl)]. | description of paracrenosoma combesi n. sp. (skrjabingylinae), a lung parasite from the common white-toothed shrew crocidura russula hermann, 1780 in spain, and differentiation from the only european species of the same genus, paracrenosoma skrajabini (pologentsev, 1935). description of stefanskostrongylus soricis (soltys, 1954) (angiostrongylinae) from the bronches of the pygmy shrew sorex minutus linnaeus, 1766, in spain and comparison with the data of the same species in oriental europe. | 1977 | 931322 |
| [description of onchocerca dewittei n. sp. (filarioidea), parasite of sus scrofa, in malaysia (author's transl)]. | onchocerca dewittei n. sp. was collected from a wild boar at the metatarse level (tendons and subcutaneous connective tissue); it can be differentiated from other species by the female cuticle showing straight ridges which overlap in the lateral fields, and by its relatively thick microfilaria (length 228-247 mu and width 6-7 mu). this suidean onchocerca displays some primitive characters such as straight ridges and persistency of ten pairs of caudal papillae in the male; but as a whole this spe ... | 1977 | 931324 |
| antimetabolites produced by microorganisms. xiii. the synthesis and microbiological production of a novel amino acid, l-2-amino-4-(2-aminoethoxy) butanoic acid. | a novel amino acid, l-2-amino-4-(2-aminoethoxy-)-butanoic acid, was isolated from a fermentation broth of streptomyces sp. x-11,085. it was shown to be identical with the chemical reduction product of an antimetabolite antibiotic, l-2-amino-4-(2-aminoethoxy)-trans-3-butenoic acid, a co-product in the fermentation. addition of the title compound to the fermentation led to an enhanced yield of the antimetabolite suggesting that the saturated amino acid serves as a precursor for the antimetabolite. | 1976 | 931793 |
| oxygen requirement for acetylene reduction by pure cultures of rhizobia. | the oxygen and nutritional requirements for acetylene reduction by rhizobium japonicum and rhizobium sp. in liquid culture are described. the optimal oxygen concentration was about 0.1% in the gas phase, which is lower than that of any other known aerobic nitrogen-fixing microorganism. these organisms are also unique in that nitrogenase synthesis is not repressed in the presence of ammonium chloride under certain cultural conditions, in contrast to other wild-type bacteria. | 1976 | 931945 |
| synthesis and turnover of the regularly arranged surface protein of acinetobacter sp. relative to the other components of the cell envelope. | the formation of the components of the cell envelope of acinetobacter sp. 199a was investigated by measuring the incorporation of [3h]leucine into protein, [14c]galactose into lipopolysaccharide, 32p into phospholipid, and [3h]diaminopimelic acid into peptidoglycan. whereas the lipopolysaccharide and intrinsic protein of the outer membrane were stable, some of the regularly arranged surface protein, the alpha-protein, was lost into the growth medium. only newly synthesized alpha-protein was lost ... | 1976 | 931951 |
| fatty acids. vii. gas-liquid chromatographic properties of all dimethylene interrupted methyl trans,trans-octadecadienoates. | all the dimethylene interrupted trans,trans-octadecadienoic acids were synthesised by lithium metal-ammonia reduction of the corresponding octadecadiynoic acids, except for the detla2t,6t isomer, which was obtained by the isomerisation of the delta2c,6c isomer. the gas-liquid chromatographic behaviour of the methyl esters was studied on polar [carbowax 20m, ffap, dega, degs, silar 10c (recently renamed as apolar 10) and sp 2330], semi-polar (xe-60), and non-polar (se-30, ov101 and apiezon l) sta ... | 1976 | 932147 |
| development and fine structure of pleistophora sp. (cnidospora: microsporida) in the mosquito, aedes sierrensis. | 1976 | 932479 | |
| heterokaryosis in fusarium oxysporum f.sp. lycopersici. | intra-isolate and inter-isolate heterokaryons were synthesized between auxotrophic mutants of fusarium crown rot, 'purple variant' and the wilt isolates. this is the first report of intra- and inter-isolate heterokaryons in fusarium oxysporum f.sp. lycopersici. conidial ratios determined for several heterokaryons between different mutants of the fusarium crown rot organism showed that the ratio is constant for each heterokaryon and that the ratio usually is in favour of one of the mutants. | 1976 | 932676 |
| a taxonomic study of the aeromonas hydrophila-aeromonas punctata group. | a total of 203 characters has been determined for 68 strains of aeromonas belonging to the aeromonas hydrophila-a. punctata group. the results have been subjected to computer analysis using the coefficient of jaccard-sneath and the strains clustered by the method of aggregation according to the variance. the 68 strains can be divided into two well-segregated classes on the basis of 59 variable characters, of which seven are of diagnostic value. the two classes are considered as two separate spec ... | 1976 | 932684 |
| seasonal periodicity of three species of caryophyllaeid cestodes in the creek chubsucker, erimyzon oblongus (mitchill), in north carolina. | one hundred and seventy-two specimens of erimyzon oblongus from lake raleigh, north carolina, were examined for caryophyllaeid cestodes from december 1972 to july 1974. monobothrium ulmeri, biacetabulum meridianum, and an undescribed species of penarchigetes were recovered from the "stomach," "pyloric bend," and the first loop of the small intestine of the suckers. infections of m. ulmeri were limited to an 8-month period and were seasonally periodic in prevalence, mean intensity, maturation, an ... | 1976 | 932917 |
| diplotriaena darnaudii sp. n. (nematoda: diplotriaenidae) from d'arnaud's barbet, trachyphonus darnaudii. | diplotriaena darnaudii sp. n. is described from 13 specimens collected from the thoracic air sacs of a d'arnaud's barbet (trachyphonus darnaudii) originating in the lake baringo area of kenya and which died in captivity in canada. in morphology it is similar to d. bargusinica skrjabin 1917, d. campanae anderson 1959, d. dollfusi anderson 1959, and d. epsilon johnston and mawson 1940, but can be separated from these species by combinations of trident size and spicule size and morphology. | 1976 | 932919 |
| nasal mites of the subfamily speleognathinae (ereynetidae) from birds in texas. | nasal mites of the subfamily speleognathinae were recovered from several species of birds in texas. new host records include ophthalmophagus striatus (crossley) 1952 from columbigallina passerina, boydaia clarki fain 1963 from callipepla squamata, boydaia falconis fain 1956 from falco sparverius, and boydaia tyrannus ford 1959 from myiarchus cinerascens. also recovered was astrida coccyzae pence 1972 from coccyzus americanus. boydaia pheucticola sp. n. from pheucticus melanocephalus is described ... | 1976 | 932921 |
| further studies on trypanosomers in game animals in wyoming. | blood samples were collected from captive and free-ranging elk (cervus canadensis), mule deer (odocoileus hemionus), white-tailed deer, (odocoileus virginianus), black-tailed deer (odocoileus hemionus columbianus), pronghorn (antilocapra americana), moose (alces alces), and bighorn sheep (ovis canadensis) for cultural evidence of trypanosoma sp. infection. eleven of 188 (12%) hunter-killed elk, 22 of 37 (59%) free-ranging elk, and 79 of 119 (66%) captive elk were culture positive in 1973-74. par ... | 1976 | 933315 |
| [carotenoids synthesized by a culture of a mutant actinomycete strain]. | several pigments (beta-, gamma-carotenes and lycopene) have been isolated from the culture of the mutant strain of actinomyces sp. 2 var. piii related to actinomyces chrysomallus. the pigments were identified by the position of maxima and absorption of light by the pigments within the range of 400 to 520 nm, and also by chromatography in several solvent systems, the results were compared with standard samples and literature data. the total yield of the carotenes during cultivation in flasks was ... | 1976 | 933877 |
| architecture and deposition of cellulin granules in apodachlya sp. | 2006 | 934182 | |
| mussels (mytilus sp.) as an indicator of lead pollution. | the lead contents of two species of mussels (mytilus californianus and m. edulis) collected along the pacific coast from piedras blancas, california to punta banda, baja california were determined by isotope dilution method. the whole soft parts of the mussels, on a dry weight basis, contained from 0.27 to 42 ppm of lead, which can be related to their local habitats. the gill tissues of the mussels showed the highest lead concentration. | 1976 | 935850 |
| polygalacturonase activity of penicillum sp 7/4b/ei 1 mutant grown on some by-products of food industry. | pectolytic activity of the penicillum sp 7/4b/e11 mutant, which synthesized effectively pg and was not capable of producing pe, was studied on some by-products of food industries (apple pulp, beet pulp, and mixtures of apple pulp or beet pulp with wheat bran) supplemented in some experiments with mineral salts of the czapek's medium. the strain showed good growth but a low pg activity when grown on by-products without mineral salts and an increase in pg activity after cultivation on these by-pro ... | 1976 | 937088 |
| [description and life history of tetrameres (tetrameres) cardinalis sp. n (author's transl)]. | a new species of spirurid nematode tetrameres (tetrameres) cardinalis n. sp. parasite of a cardinal: richmondia cardinalis is described. this tetrameres shows primitive cephalic structures, 33 to 43 pairs of somatic spines in male, spicules of unequal length: left 365-440, right 65-350 mu, mature eggs with tufts of polar filaments. the life-cycle of this spirurid has been obtained experimentally with the grass-hopper locusta migratoria as an intermediate host. its larval development is character ... | 2006 | 937982 |
| inhibitory effect of interferon on dna and rna synthesis in murine spleen cells stimulated by lectins. | spleen cells from mice inoculated with partially purified preparations of interferon (sp. act. 1 x 10(7) i.u./mg protein, 0.2 ml i. v./mouse) were stimulated in vitro with phytohemagglutinin, concanavalin a or lipopolysaccharide. after 2 days of stimulation, the incorporation of 3h-thymidine into tca-insoluble radioactivity was inhibited 50-90% when compared with cells from animals inoculated with mock interferon. maximal inhibition, with optimal doses of lectins was obtained when interferon was ... | 1976 | 938001 |
| sensitivity of environmental microorganisms to antimicrobial agents. | the sensitivity of different microorganisms, considered as typical representatives of the microflora of soil and water, was established to evaluate the influence of the nonmedical use of antimicrobial agents on bacterial ecology. only seven strains, six chemoorganotrophs and one chemolithotroph, could be considered as relatively sensitive to the 21 antimicrobial compounds tested. the other 29 microorganisms may be regarded as resistant to most antimicrobial agents. streptomyces were sensitive to ... | 1976 | 938030 |
| dissimilatory nitrate and nitrite reduction under aerobic conditions by an aerobically and anaerobically grown alcaligenes sp. and by activated sludge. | 1976 | 939730 | |
| mortality in red-sided garter snakes, thamnophis sirtalis parietalis, due to larval nematode, eustrongylides sp. | garter snakes, thamnophis sirtalis parietalis, that had been fed wild-caught banded killifish, fundulus diaphanus, and laboratory-bred leopard frogs, rana pipiens, were infected by larval nematode, eustrongylides sp; 7 of the 25 snakes died. signs of infection in 20 snakes included subcutaneous "lumps," violent contortions, and bloody exudate, apparently from the nares. nemotodes were collected at necropsy from beneath the skin, in the lungs, in the body cavity, and along the spinal column. nema ... | 1976 | 940307 |
| [composition of the carbohydrate component and fatty acids of the chief gangliosides of the brains of cartilaginous fish]. | ganglioside composition has been studied in the brain of 5 elasmobranch fishes (3 sharks: carcharhinus longimanus, carcharhinus sp., squalus acanthias and 2 rays: dasyatis pastinaca, raja clavata). for the identification of ganglioside fractions, molar ratio of glucose, galactose, nana and sphingosine as well as the presence of hexosamine were determined in the main gangliosides from the brain of the shark c. longimanus. the data obtained indicate that the majority of brain gangliosides in elasm ... | 2008 | 941546 |
| preliminary studies on the characterization and distribution of staphylococcus and micrococcus species on animal skin. | a total of 221 strains of staphylococci and 98 strains of micrococci isolated from the skins of eastern gray squirrels, southern flying squirrels, raccoons, opossums, squirrel monkeys, swine, sheep, horses, cattle, and dogs were characterized in a preliminary attempt to resolve their natural relationships and distribution in nature. staphylococci demonstrating the widest host range included staphylococcus xylosus and unnamed staphylococcus sp. 3. unnamed staphylococcus sp. 2 was isolated only fr ... | 1976 | 942208 |
| characterization of anaerobic heterotrophic bacteria isolated from freshwater lake sediments. | strict anaerobic culture techniques were used to quantitatively and qualitatively evaluate the anaerobic heterotrophic bacteria present at the sediment-water interface of hyperutrophic wintergreen lake (augusta, mich.). anaerobic plate counts remained constant from march through december, 1973, ranging from 2.4 x 10(6) to 5.7 x 10(6) organisms/g (dry weight) of sediment. the isolatable bacteria represented a small percentage of the total microbial community, which was shown by direct microscopic ... | 1976 | 942211 |
| bacterial catabolism of threonine. threonine degradation initiated by l-threonine-nad+ oxidoreductase. | 1. isolates representing seven bacterial genera capable of growth on l-threonine medium, and possessing high l-threonine 3-dehydrogenase activity, were examined to elucidate the catabolic route. 2. the results of growth, manometric and enzymic experiments indicated the catabolism of l-threonine by cleavage to acetyl-coa plus glycine, the glycine being further metabolized via l-serine to pyruvate, in all cases. no evidence was obtained of a role for aminoacetone in threonine catabolism or for the ... | 1976 | 942418 |
| soybean flower-to-seed movement of epiphytic bacteria. | epiphytic tracer bacteris (a pseudomonas sp. and an arthrobacter sp.) from soybean buds were introduced into open flowers of greenhouse-grown soybean plants. of the 177 resulting pods cultured after surface disinfection, tracers were recovered from within 24. seed from two of these pods also carried tracers. | 1976 | 943220 |
| isolation of (-)-cryptosporiospin, a chlorinated cyclopentenone fungitoxic metabolite from phialophora asteris f. sp. helianthi. | the (-)-enantiomer of cryptosporiopsin, a chlorinated cyclopentenone fungitoxic metabolite, was isolated from phialophora asteris f. sp. helianthi. next to a comparable fungitoxic activity was shown by crypstosporiopsin, the product particularly inhibits growth of sclerotinia sclerotiorum, an important pathogen on sunflower. two further metabolites were tentatively identified as a stereoisomer of cryptosporiopsin and its dehydrated derivative. | 1976 | 943308 |
| products of anaerobic phloroglucinol degradation by coprococcus sp. pe15. | under anaerobic conditions, resting cell suspensions of coprococcus sp. pe15 degraded 1 molecule of phloroglucinol to 2 molecules of acetic acid and 2 molecules of carbon dioxide. the organism metabolized the flavonoids rhamnetin and quercetin anaerobically in 20% rumen fluid medium but failed to grow under similar conditions at the expense of any of 39 other aromatic or flavonoid compounds tested. | 1976 | 944077 |
| an electron-microscopic study of herpetomonase sp. (leptomonas pessoai). | the fine structure of the promastigotes of herpetomonas sp. (leptomonas pessoai) kept in a defined medium at 28 degrees c is described. this portozoon reveals several features in common with other trypanosomatids. a membrane-bounded organelle measuring 0.2 to 0.8 mum in diameter, similar to that described as peroxisome in crithidia fasciculata, was also observed. a large cavity, located between the nucleus and the kinetoplast and containing vesicles and small particulate material is discussed in ... | 1976 | 944078 |
| [presence of thelazia sp. in quebec in the horse and the cow]. | 1976 | 944085 | |
| conidiogenesis in pathogenic hyphomycetes. i. sporothrix, exophiala, geotrichum and microsporum. | conidium formation in 5 species of pathogenic hyphomycetous fungi, sporothrix schenckii, exophiala salmonis, e. sp., geotrichum candidum and microsporum canis were examined using light and scanning electron microscopy. the fungi, grown in pure culture on potato dextrose agar under defined conditions, demonstrated 4 kinds of conidiogenesis. the taxonomic value of the developmental characters in the classification of the fungi imperfecti is discussed. | 1976 | 944466 |
| use of mutants to establish (+)-scytalone as an intermediate in melanin biosynthesis by verticillium dahliae. | melanin biosynthesis in verticillium dahliae kleb, was studied with mutants deficient for normal black melanin or for production of microsclerotia. seven genetically different mutants had apparent blocks in melanin biosynthesis. four mutants (brm-1 to -4) produced brown microsclerotia and extruded pigments into media; three (alm-1 to -3) produced albino microsclerotia. other mutants produced no microsclerotia (nms) or had greatly reduced numbers of microsclerotia (rms). mutation alm-1 was due to ... | 1976 | 945120 |
| peptococcus heliotrinreducans, sp. nov., a cytochrome-producing anaerobe which metabolizes pyrrolizidine alkaloids. | several strains of a new, obligately anaerobic, gram-positive coccus were isolated from sheep rumen contents. an important distinctive feature was their reductive cleavage of hepatotoxic pyrrolizidines, using hydrogen gas or formate as hydrogen donor. with the same hydrogen donors, the organism reduced nitrate and fumarate. in all cases, the reductive metabolism formed part of an energy-giving sequence used by the organism for growth. this new coccus also utilized energy obtained by dissimilatio ... | 1976 | 945326 |
| systematic isolation of the genus alternaria in the atmosphere of the "grande sao paulo" area (brazil). | the genus alternaria has been isolated from the atmosphere of several countries and its spores are considered as having a strong allergenic power. the description of the genus isolation with a relative frequency was noted in the following countries: mexico, the united states of america, canada, great britain, spain, south africa, denmark and argentina. many brazilian authors have pointed out the rare incidence of this genus excluding faria (5) who recorded in the city of belo horizonte, state of ... | 2000 | 945681 |
| a case of asymptomatic babesiosis in georgia. | an asymptomatic infection with babesia sp. was diagnosed in an epidemiologic investigation of transfusion-acquired malaria. this is the seventh human piroplasmosis infection that has been reported in the literature. | 1976 | 945702 |
| alkaloids and procyanidins of an uncaria sp. from peru. | the alkaloid and procyanidin composition of uncaria sp. from eastern peru, used in folk medicine was studied. five alkaloids have been separated and identified as pteropodine, speciophylline, isopteropodine, uncarine f and isomytraphylline, all belonging to the oxindole group characteristic of the rubiaceae. moreover (--) epicatechin and four dimeric procyanidins a1, b1, b2 and b4 have been shown to constitute the polyphenolic fraction of the plant extract. | 1976 | 947783 |
| monograph on "lithoglyphopsis" aperta, the snail host of mekong river schistosomiasis. | we discuss the morphology, histology, ecology, distribution, systematics, and evolutionary relationships of "lithoglyphopsis" aperta temcharoen, the snail host of mekong river schistosoma sp., and part of a vast, complex, endemic hydrobid fauna consisting of 11 genera and over 80 species. "l" aperta is a member of the hydrobiidae (as broadly outlined by fretter & graham, 1962), subfamily triculinae (as defined by davis, 1968b). "l" aperta cannot be assigned to ltihoglyphopsis because its shell a ... | 1976 | 948206 |
| fungal ornithine esterases: relationship to iron transport. | extracts of fusarium roseum (atcc 12822) contain an enzyme which hydrolyzes the ornithine ester bonds of fusarinine c, a cyclic trihydroxamic acid produced by this organism. the methyl ester of ndelta-dinitrophenyl-l-ornithine is also a substrate for the enzyme, and an assay was devised using this substrate. the enzyme exhibits a sharp maximum of activity at ph 7.5 and is extremely temperature sensitive. it is strongly inhibited by hgcl2 and p-chloromercuribenzoate, and it is competitively inhib ... | 1976 | 949472 |
| acanthophthirius kolenatii, a new species, and some new records of fur-mites (acarina: myobiidae and labidocarpidae) from armenia. | a description of the female of a new species, acanthophthirius kolenatii sp.n., is given. the species is very closely related to a. poppei (trouessart, 1895) and a. etheldredae perkins, 1925 and has been collected from pipistrellus kuhli (kuhl) in the armenian s.s.r. the species pteracarus pipistrellius pipistrellius (radford, 1938) and alabidocarpus calcaratus calcaratus lawrence, 1952 are recorded from the territory of armenia for the first time. | 1976 | 950184 |
| to the knowledge of fauna of synanthropic flies of the nepal himalya. | a material of flies collected in two localities (altitude of 3900 and 4500 m) in the barun khola valley (east nepal) was studied, representing the early spring aspect of the species composition of flies. of the total number of 2309 fly specimens 99.3% represented two species of the genus paregle (p. aterrima, p. sp.); both are autochthonous high altitude hemisynanthrophic forms. the remainining 0.7% represent 9 species, most of which are more or less eurytopic species of palearctic or holoarctic ... | 1976 | 950185 |
| sokoloviana kucheruki sp. n. from the killdeer from cuba (analgoidea, pterolichidae). | 1976 | 950187 | |
| gyrodactylus konovalovi sp. n. (gyrodactylidae: monogenoidea) from phoxinus lagowskii dybowski. | a new species of the genus gyrodactylus, g. konovalovi, from the fins, gills and skin of phoxinus lagowskii dybowski is described. the specimens were found for the first time in the mongolian people's republic by ergens and dulmaa (1967) and were erroneously determined as d. macronychus malmberg, 1957. | 1976 | 950188 |
| u-43,120; a new antitumor antibiotic. i. production, biological activity, microbiological assay and taxonomy of the producing microorganism. | a new antitumor antibiotic, u-43,120 was discovered. it is produced by fermentation of a new species of streptomyces, designated streptomyces paulus dietz sp. n. its antimicrobial activity is limited to bacteria. a microbiological assay with bacillus subtilis was developed that can be detect concentrations of 1 approximately 2 mug/ml of the drug in fermentation liquors. u-43,120 was active in vivo against p-388 leukemia in mice. | 1976 | 950315 |
| characterization of bile acid methyl ester acetate derivatives using gas-liquid chromatography, electron impact, and chemical ionization mass spectrometry. | the gas-liquid chromatographic retention times on 0.5% sp-525 for 48 bile acids and related compounds as their methyl ester acetate derivatives are given. ion tables for electron impact spectra have been compiled that permit direct access to ion structures for any given ion mass. chemical ionization yields highly simplified mass spectra with two or three ions predominating for each compound. when the relative retention times of bile acids as their methyl ester acetates are combined with selectiv ... | 1976 | 950495 |
| influence of dilution rate on enzymes of intermediary metabolism in two freshwater bacteria grown in continuous culture. | two freshwater bacteria, a pseudomonas sp. and a spirillum sp., were grown in continuous culture under steady-state conditions in l-lactate-, succinate-, ammonium- or phosphate-limited media. in pseudomonas sp., nad-independent and nad-dependent l-lactate dehydrogenases, aconitase, isocitrate dehydrogenase and glucose 6-phosphate dehydrogenase activities increased up to 10-fold as the dilution rate (d) was decreased from 0.5 to 0.02 h-1, regardless of whether the growth-limiting nutrient was car ... | 1976 | 950555 |
| parasitology survey in northern sumatra, indonesia. | a parasitology survey was conducted in five villages in north sumatra, indonesia. a total of 3,207 blood smears, 2,066 stool specimens and 969 sera were examined. sixty (1.9%) inhabitants had malaria (plasmodium vivax 41, p. falciparum 19), and 20 had brugia malayi microfilaraemia. the most common intestinal helminths were trichuris trichiura (87%), ascaris lumbricoides (75%) and hookworm (58%). other helminths found in low numbers were enterobius vermicularis, strongyloides stercoralis, taenia ... | 1976 | 950682 |
| cuterebra encephalitis in a dog. | encephalitis was diagnosed in a 3 1/2-month-old puppy, based on neurological signs, and cerebrospinal fluid examinations. verminous encephalitis from a migrating cuterebra sp. larva in the right cerebral hemisphere was confirmed at necropsy. | 1976 | 954444 |
| plant microbody proteins, iii. labelling of the peroxisomal membrane protein sp-63 in vitro and in vivo. | methods were developed to charcterize membranes and membrane components of leaf peroxisomes from lens culinaris. while microbodies from etiolated young leaves exhibited an equilibrium density of 1.19 g/cm3, older leaves or leaves exposed to light for increasing periods of time contained microbodies banding at higher densities up to 1.235 g/cm3. similar values were also found for the corresponding microbody membranes, which could be labelled with diazotized [35s]sulphanilic acid. labelling was al ... | 1976 | 955565 |
| [the synthesis of motilin, iii: purification and characterization of (13-norleucine) motilin and (13-leucine) motilin (author's transl)]. | the preparation of the pure docosapeptide h-phe-val-pro-i1e-phe-thr-tyr-gly-glu-leu-gln-arg-nle-glu-glu-lys-glu-arg-asn-lys-gly-gln-oh ([nle13]motilin) and of the analogous [leu13]motilin from the crude synthetic materials obtained after deblocking of the overall protected docosapeptide derivatives by means of trifluoroacetic acid is described. in a preliminary experiment the separation of crude [nle13]-motilin into several components, some of which being indistinguishable by thin layer chromato ... | 1976 | 955570 |
| the effect of cytophilic igg2 on phagocytosis by ovine polymorphonuclear leucocytes. | non-lactating, multiparous ewes were immunized either by subcutaneous infection with live staphylococcus aureus (seventeen ewes) or by intramuscular injections of a killed s. aureus-oil adjuvant vaccine (seventeen ewes). polymorphs which were subsequently collected from the mammary glands of the animals were used in in vitro phagocytosis assays against pseudomonas sp. or s. aureus. there was no difference between polymorphs from the two groups of ewes in their ability to phagocytose pseudomonas ... | 1976 | 955674 |
| cheyletiella infestation in cats. | while routinely examining a fecal specimen of a cat for evidence of intestinal parasitism, large eggs (230 by 110 mu) were observed. tfurther examination of the fecal specimen revealed an adult cheyletiella sp. mite. of 42 cats received from the same source, 11 had cheyletiella mites, found either on the skin or in fecal specimens. grossly visible skin changes were not observed in any of the cats. the conically shaped sensory organ on genu i of the mite resembled that of cheyletiella blakei. | 1976 | 956021 |
| gardimycin, a new antibiotic from actinoplanes. i. description of the producer strain and fermentation studies. | two strains of actinoplanes have been isolated that produce a new peptide antibiotic named gardimycin. a detailed taxonomical study of such strains indicates that they differ between themselves and from all the described species of actinoplanes. for this reason they are considered to be new species; for which the names a. garbadinensis nov. sp. and a. liguriae nov. sp. are proposed. the type strain of a. garbadinensis is a/10889(=atcc 31049), the type strain of a. liguriae is a/6353 (=atcc 31048 ... | 1976 | 956037 |
| gardimycin, a new antibiotic from actinoplanes. ii. isolation and preliminary characterization. | the strain actinoplanes garbadinensis nov. sp. produces a peptide antibiotic, named gardimycin, which is active in vitro and in vivo against gram-positive bacteria. isolation and purification of the product have been accomplished by extraction from the broth with butanol and dialysis of the crude extract, followed by counter-current distribution. gardimycin is an open chain peptide with an approximate minimal formula c84h138n18s3-4o34na. the following amino acids have been identified by column c ... | 1976 | 956038 |
| a butyrylcholinesterase inhibitor produced by penicillium sp. no. c-81 and its identity with mycelianamide. | a screening aimed at obtaining a cholinesterase inhibitor of microbial origin was carried out using pseudomonas butyrylcholinesterase. a mycelium-extract of a fungus strain, belonging to the genus penicillium, was found to produce such an enzyme inhibitor. the inhibitor was purified and crystallized as colorless leaflets. from physical and chemical studies, the inhibitor was identified as being identical with an antibiotic, mycelianamide, though this compound was not known to have enzyme inhibit ... | 1976 | 956041 |
| hla-related control of spontaneous and antibody-dependent cell-mediated cytotoxic activity in humans. | normal human lymphocyte preparations were tested for their ability to lyse both antibody-coated and unsensitized human target cell lines. the capacity to induce these two types of cell-mediated cytotoxicity, antibody-dependent (ab-cmc) and spontaneous (sp-cmc), was detected by a 51cr release assay. the reactivity of lymphocytes from 1. individual donors showed a positive and highly significanlty correlation between ab-cmc and sp-cmc, leading to the hypothesis that the same type of effector cell ... | 1976 | 956652 |
| isolation and structure of an extracellular polysaccharide from streptomyces sp. ferm-p1185. | a streptomycete strain (ferm-p1185), isolated from soil, secreted a slime on glucose-asparagine agar, and produced viscous growth in liquid media containing peptone as nitrogen source. a purified polysaccharide isolated from the culture broth was composed of glucose and mannose units (molar ratio 1-87:1). periodate oxidation, smith degradation, methylation analysis, infrared and 13c nuclear magnetic resonance spectra indicated that this mannoglucan had a linear structure consisting of alpha-1,3- ... | 1976 | 956777 |
| virulence heterogeneity of a predominantly avirulent western equine encephalitis virus population. | selective removal of small plaque (sp) western equine encephalitis (wee) virus from a population heterogeneous with respect to virulence and plaque morphology permitted direct detection of a small sub-population of virulent large plaque (lp) wee virus. selective removal of sp-wee virus was achieved by intracardiac (i.c.a.) inoculation of hamsters; plasma obtained 60 min after inoculation was proportionately enriched for lp-wee virus since only the sp-wee virus was cleared. by this method, the pr ... | 1976 | 956785 |
| eucyathostomum webbi sp. n. (strongyloidea: cloacinidae) from white-tailed deer (odocoileus virginianus). | the new species is described from white-tailed deer of mcintosh county, georgia, and pushmataha county, oklahoma. eucyathostomum webbi sp. n. differs from e. longesubulatum (type) in possessing more internal leaf crown elements, unbarbed spiculte tips, variability in the configuration of the dorsal ray of the male bursa, and shorter vagina and ovejectors; from e. copulatum in being much larger and not having males and females permanently united; from e. spinulosum in the origin of the externo-do ... | 1976 | 957035 |
| cruorifilaria tuberocauda gen. et sp. n. (nematoda: filarioidea) from the capybara, hydrochoerus hydrochaeris in colombia. | cruorifilaria tuberocauda gen. et sp. n. is described from blood vessels of the kidney, heart, and lungs of the capybara, hyrochoerus hydrochaeris, in colombia, s.a. the adult worms are robust, of moderate size (females approximately 42 mm long, males about 27 mm long), and tapered at both ends. the males have unequal, dissimilar spicules, lack a gubernaculum and possess both pre- and postanal papillae. the unsheathed microfilaria is found in the peripheral blood. even though a severe tissue res ... | 1976 | 957038 |
| cystobranchus meyeri sp. n. (hirudinea: piscicolidae) from catostomus commersoni lacépède in north america. | cystobranchus meyeri sp. n. (hirudinea: piscicolidae) is described from the white sucker, catostomus commersoni lacépède (osteichthyes: catostomidae) from the mohawk river drainage of eastern new york. size, details of internal anatomy, and the presence of 8 ocelli on the posterior sucker distinguish it from the 3 other species in north america. a table compares the members of this genus and a key to the species is included. problems of classification, host records, and host specificity are disc ... | 1976 | 957041 |
| winter ecology of ectoparasites collected from hibernating myotis velifer (allen) in southwestern oklahoma (chiroptera: vespertilionidae. | during the winter of 1971-72, trichobius major, t, corynorhini, mydopsylla collinsi, macronyssus crosbyi, m. unidens, paraspinturnix globosus, spinturnix carloshoffmani, ornithodoros sp., albeckia senase, nycteriglyphus sp. a, and olabidocarpus sp. were quantitatively collected from hibernating myotis velifer, plecotus townsendii, and pipistrellus subflavus. significantly greater numbers of s. carloshoffmani and m. crosbyi were found on female m. velifer, while greater numbers of p. globosus wer ... | 1976 | 957042 |
| acinetobacter and similar organisms in ear infections. | fifty-seven strains of acinetobacter-like organisms were isolated over a period of 26 months from the ears of 55 patients with acute or chronic otitis media, or otitis externa, and one strain was isolated in a survey of 50 normal ears. after comparison with eight reference strains, 32 of the isolates were identified as acinetobacter anitratus, 22 as acinetobacter iwoffii, three as moraxella spp. and one as achromobacter sp. analysis of the clinical findings suggests that although most of these o ... | 1976 | 957420 |
| ultrastructural investigation of the mechanism of muscle attachment to the gastropod shell. | the ultrastructure of the muscle-shell attachment was investigated in the land pulmonate snails helix aspersa, anguispira alternata, in the freshwater pulmonate laevipex sp., and in the freshwater prosobranch pomacea paludosa. in all cases, a collagenous intercellular matrix and a specialized epithelium (tendon cells) intervene between the columellar muscle and the shell. these tendon cells are characterized by hemidesmosomes at both apical and basal ends, connected by thick bundles of microfila ... | 1976 | 957445 |
| [genus polylabris euzet et cauwet, 1967 and some related species of microcotylids (monogenoidea: microcotylidae)]. | the species p. diplodi euzet et cauwet, 1967, p. kuhliae (yamaguti, 1967), p. maomao (yamaguti, 1968), p. acanthogobii (yamaguti, 1940), p. gerres (sandars, 1944), p. tubicirrus (paperna et kohn, 1964) should be assigned to the genus polylabris euzet et cauwet, 1967 (=prostatomicrocotyla yamaguti, 1968). undoubtedly, "microcotyle sillaginae woolcock, 1936" in sensu gupta and khullar, 1968, and very likely the true microcotyle sillaginae woolcock, 1936 belong to the same genus. p. gerres (machida ... | 2007 | 958718 |
| [helminth fauna of bering sea pinnipeds from karaginskiy bay]. | the helminthological investigations were conducted from may 6 to may 28, 1972 in the karaginsk gulf of the bering sea. the helminths were collected from 124 specimens of phoca vitulina largha, 9 specimens of erignathus barbatus nauticus, 9 specimens of pusa hispida krascheninnikovi and 9 specimens of histriophoca fasciata. in all, 23 species, 2 immature and 1 larval form of helminths were recorded. the data are given on the localization of helminths, intensity and extensity of their invasion, pa ... | 1976 | 958725 |
| [new representatives of the lower monogenea from the gills of fishes of the fam. fomacentridae from the gulf of mexico]. | 6 new species of the genus neohaliotrema yamaguti, 1965 are described and a new genus and species, paraneohaliotrema microspathodoni zhukov gen. et sp. n., (monogenoidea, polyonchoinea) from the fishes of the family pomacentridae from the of gulf mexico are erected. the specimens described were found in abudefduf saxatilis, a. taurus and microspathodon chrysurus caught in the habana region. the interrelationships between investigated hosts and their parasites are discussed. the indo-westpacific ... | 1976 | 958728 |
| [studies on the functional ability of swine liver perfused with human blood in machine recirculation attempt. 2. behavior of serochemical parameters]. | in the present paper is reported on the behavior of different serochemical parameters in heterologous perfusion of the liver of pigs. the perfusion of the animal livers was carried out with preserved human blood in 11 recirculation experiments (closed machine circulations). in addition to this an empty circulation with human blood without attachment to an animal liver was carried out, whereby otherwise the arrangement of the experiment was the same, in order to take into consideration the effect ... | 1976 | 960862 |
| [epidemiology of cervix carcinoma in pregnancy]. | it is reported about the prevalence-rate of the precancerous and invasive cancers ofthe cervix uteri with 22,450 pregnant women at the age-groups from the 13th to 48th year, which are registrated by help of the cytological and expanded colposcopical examination from 1968 to 1974. there were found 57 heavy dysplasies (= 0,25%; sp = +/- 0,133), 42 carcinomas in situ (0,18%; sp = +/- 0,113) and 12 invasive cancers of the cervix uteri (= 0,053%; sp = +/- 0,061). it seems to be, that the prevalence-r ... | 1976 | 961184 |
| anisakid larva from the throat of an alaskan eskimo. | an anisakid nematode, identified as phocanema sp. fourth-stage larva, was "pulled" from the throat of a 46-year-old alaskan eskimo. the nematode is described and illustrated. | 1976 | 961991 |
| a description of glucose uptake in navicula pelliculosa (breb) hilse including a brief comparison with an associated flavobacterium sp. | navicula pelliculosa and an associated flavobacterium sp. were isolated from the epiphyton of scirpus maritimus, an emergent macrophyte growing in a brackish drainage dyke. both micro-organisms possessed active transport systems for glucose uptake. in n. pelliculosa the transport system was fully induced in the dark in the absence of glucose, and subsequently inactivated when transferred to the light in the absence of the substrate. the presence of glucose during the dark induction period preven ... | 1976 | 962466 |
| [kluyveromyces blattae sp. n., a new multispored yeast for blatta orientalis (author's transl)]. | a new hitherto undescribed species of yeast of the genus kluyveromyces has been isolated for the intestinal tract of the oriental cockroach (blatta orientalis). a description of the new species including latin diagnosis is given. | 1976 | 962467 |
| gastro-intestinal parasites of feral cats in new south wales. | a total of 146 feral cats from several localities in new south wales were examined for the presence of gastro-intestinal parasites. the cestodes recorded, and their prevalence, were taenia taeniaeformis (21.9%), spirometra erinacei (61.0%) and dipylidium caninum (11.6%). one animal contained 31 t. serialis scolices considered to be the contents of a recently ingested coenurus serialis. the common nematodes encountered and their prevalence were toxocara cati (21.9%) and ancylostoma spp (23.3%). u ... | 1976 | 962738 |
| reduction of acetylene by stationary cultures of free-living rhizobium sp. under atmospheric oxygen levels. | the reduction of acetylene to ethylene by stationary (non-shaking) cultures of free-living rhizobia under atmospheric oxygen levels has been demonstrated. under these conditions the development of the activity is inhibited by 10 mm nh4cl and about 20% of oxygen is required for maximal activity. when the stationary cultures were shaken, oxygen concentrations of 1% and higher were found to be inhibitory. specific activities of 20 and 40 nmol of acetylene reduced h-1 mg-1 protein were observed. | 1976 | 963617 |
| toxicity and plant growth regulator effects of cytochalasin h isolated from phomopsis sp. | a biologically active metabolite was found in crude extracts of an unidentified species of phomopsis isolated from weevil-damaged pecans. purified metabolite was toxic to day-old cockerels, with an ld50 of 12.5 mg/kg, and was markedly inhibitory to growth the floral development of tobacco plants at concentrations of 10(-2) to 10(-4) m. ir and 1h-nmr spectra indicated an alkylpheny moiety with a single nitrogen atom present as a secondary amide; and acetate ester, oh, ch3, and a trans-double bond ... | 1976 | 963626 |
| platynosomum andersoni n. sp. (trematoda: dicrocoeliidae) from bile ducts of rattus huang (bonhote). | 1976 | 963644 | |
| zschokkella embiotocidis sp.n. (protozoa, myxosporida) from california pile perch, damalichthys vacca, and striped perch, embiotoca lateralis. | 1976 | 963645 | |
| ceratomyxa anoplopoma sp.n. (protozoa, myxosporida) from the sablefish, anoplopoma fimbria. | 1976 | 963646 | |
| stimuli for cuticle formation and ecdysis in vitro of the infective larva of anisakis sp. (nematoda: ascaridoidea). | 1976 | 965148 | |
| a square pyramidal model for ribonuclease action. | a mechanism incorporating a square pyramidal model (sp) is presented for the action of bovine pancreatic ribonuclease. its formulation is based on structural principles governing pentacoordinate behavior. the model is compared with a previous trigonal bipyramidal (tp) representation with regard to the geometry of the active site and enzyme constraints. of two variants of the sp model, an adjacent (cis displacement) and in-line (trans displacement) process, the in-line mechanism, as with the tp m ... | 1976 | 965152 |
| selection for spontaneous or priming-induced audiogenic seizure susceptibility in mice. | four lines of mice were selectively bred from a heterogeneous foundation stock for audiogenic seizure prone (sp), priming prone (pp), moderately priming prone (mpp), and seizure resistant (sr). significant changes in proportions of animals showing the desired phenotypes were found after two generations of selection, indicating involvement of genetic components in these behavioral characteristics. although response to selection for spontaneous seizure proneness was rapid, the results do not suppo ... | 1976 | 965524 |
| the occurrence of mesocestoides sp. in british wild red foxes (vulpes vulpes crucigera). | infection with the cyclophyllidean tapeworm mesocestoides sp. is recorded in british wild red foxes (vulpes vulpes cr-cigera) from scotland and south east england. previously, the occurence of this parasite in great britain has been rarely reported, but the results of the present study indicate that vulpine infection may be common. | 1976 | 965710 |
| the isolation and characterization of a babesia from red deer (cervus elaphus). | on three occasions, antibody positive blood from wild red deer produced overt infections with babesia when inoculated into splenectomized red deer. one of the deer also became infected with eperythrozoon sp. babesia divergens, b. capreoli and the babesia of red deer are morphologically similar and the marginal position of the parasites in the host cell is characteristic. babesia were not seen and no antibody was formed in five out of six splenectomized bovine calves which were injected with para ... | 1976 | 967525 |
| induction of pneumonia in gnotobiotic calves following inoculation of mycoplasma dispar and ureaplasmas (t-mycoplasmas). | cloned cultures of mycoplasma dispar and of ureaplasma sp were inoculated endobronchially into gnotobiotic calves. the resulting pneumonia was estimated to involve 2 to 10 per cent of the lung although no clinical signs were observed. the histopathological lesions consisted of infiltration with mononuclear cells, cuffing (peribronchiolar lympho-reticular hyperplasia), catarrhal bronchiolitis and atelectasis. the results indicate that both m dispar and ureaplasma sp are capable of causing sub-cli ... | 1976 | 968191 |
| [hospital infections in the province of araraquara, sp (brazil)]. | 1976 | 968433 | |
| characterization of a red pigment-antibiotic produced by streptomyces sp. strain nrc-c7. | the streptomycete strain nrc-c 7 isolated from some egyptian soil samples, produces a red-coloured ph indicator antibiotic active against gram positive bacteria. the producing organism belongs to the grey series of the genus streptomyces and has grey coloured aerial mycelium with violet pigmented substrate mycelium, the violet pigment does not diffuse into the agar medium. glucose sodium nitrate medium proved the most suitable medium for the production of this antibiotic. the pigment was extract ... | 1976 | 969566 |
| probable acanthamoeba meningoencephalitis in a korean child. | a 5-year-old korean boy developed multiple subcutaneous, nontuberculous granulomas and died with meningoencephalitis. autopsy disclosed amebic granulomas in subcutaneous tissue, the left adrenal gland, and the pancreas, with more acute inflammatory lesions in the liver, kidney, and brain. the causative organism is believed to be an acanthamoeba sp. | 1976 | 970374 |