| status of the genus cyrnea (nematoda: spiruroidea) in wild turkeys from the southeastern united states. | two species of cyrnea are reported from 706 wild turkeys (meleagris gallopavo) from 25 localities in 9 southeastern states. cyrnea (cyrnea) neeli sp. n. in birds from alabama and florida is differentiated primarily by distal processes of the left spicule and spicule lengths. specimens from wild turkeys previously reported as c. eurycerca are identified as c. coloni. the configuration of caudal papillae of c. colini is redescribed. neither species occurred in birds from montainous regions, and c. ... | 1977 | 859088 |
| purification and properties of gamma-butyrobetaine hydroxylase from pseudomonas sp ak 1. | gamma-butyrobetaine hydroxylase (4-trimethylaminobutyrate, 2-oxoglutarate:oxygen oxidoreductase (3-hydroxylating), ec 1.14.11.1) has been isolated from pseudomonas sp ak 1 by ion-exchange, adsorption, and molecular-sieving chromatography. the preparation was homogeneous as judged from electrophoresis in agarose and polyacrylamide gels, isoelectric focusing, and equilibrium sedimentation. the molecular mass was 95 kdaltons as determined by sedimentation equilibrium centrifugation. from electropho ... | 1977 | 861203 |
| microwave alteration of the blood-brain barrier system of rats. | rats were exposed to 1.3 ghz microwave energy to assess the uptake of several neutral polar substances in certain areas of the brain. a quantitative, radioactive isotope method, which uses an internal standard, was employed to measure the loss of test substances to brain tissue. single, 20 min exposure, to either pulsed or continuous wave (cw) microwave energy induced an increase in the uptake of d-mannitol at average power densities of less than 3.0 mw/sp. cm. the permeability change was greate ... | 1977 | 861720 |
| the occurrence of 12, 13-epoxytrichothecenes in seeds of safflower infected with fusarium oxysporum f. sp. carthami. | from the seeds of safflower (carthamus tinctorius linn.), infected with fusarium oxysporum f. sp. carthami, 3 toxic compounds have been isolated in quantities sufficient to cause mycotoxicosis on prolonged ingestion. 2 of these have been identified as diacetoxyscirpenol and t-2 toxin, while the third one has also been partially characterized as a 12, 13-epoxytrichothecene. additionally, the incidence of secondary fusarial infection of healthy seeds due to contamination with the infected ones has ... | 1977 | 862770 |
| a new alkaloid am-2282 of streptomyces origin. taxonomy, fermentation, isolation and preliminary characterization. | am-2282, a new alkaloid has been isolated from cultures of streptomyces sp. am-2282 by solvent extraction and silica gel chromatography. the compound exhibits a strong absorption maximum at 292 nm and shows antimicrobial activity against fungi and yeast. the ld50 of its hydrochloride (i.p. in mice) is 6.6 mg/kg. the molecular formula of am-2282 has been determined as c28h26n4o3. the producing strain, am-2282 was classified as a new species and the name, streptomyces staurosporeus awaya, takahash ... | 1977 | 863788 |
| multiple components of endo-polyguluronide lyase of pseudomonas sp. | a lyophilized alginate lyase preparation obtained from dialyzed extract of sonicated pseudomonas sp. cells was fractionated by gell filtration on a sephadex g-150 column, and three alginate lyase [ec4.2.2.3] fractions, peaks i, ii, and iii, were obtained. they were remarkably thermolabile. the lyase fractions degraded two kinds of alginate fragments, a polygluuronide (sg), and a polyuronide consisting of both mannuronic and guluronic acid residues (smg), as well as commerical alginate, but were ... | 1977 | 863864 |
| substrate specificity of endo-polyguluronide lyases from pseudomonas sp. on the basis of their kinetic properties. | two endo-alginate lyases [ec 4.2.2.3] differing in their mode of degradation of substrates and practically free of polymannuronide lyase activity were partially purified from pseudomonas sp. cells. their substrate specificities were investigated for two different kinds of alginate fragments; a polyguluronide (sg) and a polyuronide consisting of mannuronic (m) and guluronic (g) acid residues (smg). the effects of various salts and some organic compounds such as edta and p-chloromercuribenzoate on ... | 1977 | 863865 |
| fine structure of smg alginate fragment in the light of its degradation by alginate lyases of pseudomonas sp. | an alginate fragment named smg, consisting of mannuronic (m) and guluronic acid residues (g)(dp=25), was prepared from the partial acid hydrolysate of a commercial alginate. two subfractions, smg-ppt (dp=52) and smg-sup (dp=18) were obtained from smg by fractionation with mgc12 and cac12. the m/g ratios of these alginate fragment were 1.4-1.9. their lysis products by a pseudomonad alginate lyase [ec 4.2.2.3] preparation were fractionated by gel filtration, giving similar patterns. the major prod ... | 1977 | 863866 |
| schizorchis arfaai sp. n. (cestoda: anoplocephalidae) from the wood-mouse, apodemus sylvaticus, in caspian area of iran. | schizorchis arfaai sp. n. is described from the wood-mouse in the caspian area of iran and its morphological characteristics compared with those of the five previously known species of schizorchis hansen, 1948. | 1977 | 864227 |
| tupaiataenia quentini gen. et sp. n. (anoplocephalidae: linstowiinae) and other tapeworms from the common tree shrew, tupaia glis. | three species of cestodes recovered from tree shrews, tupaia glis, were identified as sparganum sp., hymenolepis diminuta, and tupaiataenia quentini gen. et sp. n. the new genus is differentiated from mathevotaenia, markewitchitaenia and atriotaenia by being craspedote, possessing a large seminal receptacle, the presence of a hermaphroditic canal leading into the genital atrium, and by having two opposable, muscular lappets on the anterior margin of each sucker. | 1977 | 864565 |
| oncicola martini sp. n., and other archiacanthocephala of the chaco boreal, paraguay. | archiacanthocephalans are reported from mammals of paraguay. oncicola martini sp. n. is described from felis geoffroyi. it is most similar to o. lamasi (freitas et costa 1964) comb. n., differing in having larger hooks, all except the smallest of which are barbed. other species recorded are oncicola oncicola from felis geoffroyi (new host record), o. paracampanulata from felis yagouaroundi, o. luehei from nasua nasua, oligacanthorhynchus microcephala from didelphis albiventris, and o. tortuosa f ... | 1977 | 864568 |
| brugia timori sp. n. (nematoda: filarioidea) from flores island, indonesia. | brugia timori sp. n. from experimentally-infected mongolian jirds (meriones unguiculatus) is described. the adult male differs from other brugia species, except brugia malayi, in having a spicular ratio of 3 : 1; it differs from b. malayi in having greater numbers of subventral adanal papillae (up to 5 on each side) that are loosely spaced and irregularly positioned about the cloaca, a greater diameter of the capitulum of the left spicule, greater lengths of the proximal- and midsections of the ... | 1977 | 864573 |
| haemaphysalis (allophysalis) danieli, sp. n. (ixodoidea: ixodidae), female and tentatively associated immature stages from high mountains of northern pakistan and afghanistan. | haemaphysalis (allophysalis) danieli sp. n. is described from a female taken from alpine vegetation in swat, pakistan. fifty-one nymphal and larval ticks tentatively associated with this taxon are from hamsters, field mice, voles, and marmots (rodentia), cricetulus migratorius, apodemus flavicollis, alticola roylei, and marmota caudata, and from pikas (lagomorpha), ochotona roylei, in gilgit and hazara districts of pakistan and in badakhashan province of afghanistan. collecting localities are in ... | 1977 | 864574 |
| an epizootic of pneumonia in captive bighorn sheep infected with muellerius sp. | an epizootic of pneumonia in 20 captive rocky mountain bighorn sheep (ovis canadensis) is described. the sheep were maintained in large paddocks for about 9 months after which, in the late summer, the entire herd died within a three week period. large numbers of muellerius adults, eggs and larvae were in the lungs of all sheep. first stage larvae were widely disseminated throughout the lungs and apparently elicited a granulomatous pneumonia. pasteurella sp. and other bacteria were isolated from ... | 1977 | 864843 |
| [heat resistance of the cercariae of serveral species of trematodes]. | cercariae of echinostoma sp., cotylurus cornutus, cercaria c szidat, marites of which parasitize homeothermic hosts (birds), were found to have a high heat resistance at the effect of lethal temperature. there were established specific differences in the temperature level and its stability during a long period at a relatively constant environmental temperature. thé heat resistance of cercariae of the same species does not change during their parasitism in different species of mollusks, hosts (e. ... | 1977 | 865867 |
| [effects of mucilage extracted from the seeds of plantago sp. on the digestive tract]. | | 1977 | 866846 |
| pathogenic amoebas from brackish and ocean sediments, with a description of acanthamoeba hatchetti, n. sp. | acanthamoeba culbertsoni was isolated from a sewage-spoil dump site near ambrose light, new york bight. a second species, acanthamoeba hatchetti, n. sp., was isolated from brewerton channel, baltimore harbor, maryland. both species killed laboratory mice after infection by the intranasal route. | 1977 | 867031 |
| the etiology of nongonococcal urethritis in men attending a venereal disease clinic. | nongonococcal urethritis was identified as a major reason that men attended our venereal disease clinic. the prevalence of several agents that might cause nongonococcal urethritis was determined. attempts were made to isolate gonococci; chlamydiae, ureaplasms urealyticum, trichmonads, candida sp., and corynebacterium vaginale from urethral swabs from 307 men. chlamydiae were recovered from 31% of the 67 men with nongonococcal urethritis compared to only 4% of 86 asymptomatic men without pyuria. ... | 1977 | 867205 |
| [physiology of aniline catabolism by achromobacter ir2]. | a bacterium was isolated from soil which utilizes aniline as sole source of carbon and nitrogen. it was identified as achromobacter sp. the cells grow at concentrations in the range of 0.5 to 1.25 mg aniline/ml with a growth rate of 0.3 h-1. substrate inhibition was observed at concentrations higher than 1.5 mg/ml, 3.0 mg/ml completely inhibit the growth. the yield coefficient was 0.63. aniline was degraded with an activity of 200 microng/mg cell dry weight/hour. aniline was assimilated and comp ... | 1977 | 868083 |
| isolation of a cellulotytic bacteroides sp. from human feces. | an anaerobic cellulolytic bacterium, identified as a bacteroides sp., was present in 10(-8) g of feces from only one of five human subjects. | 1977 | 869523 |
| oxidation of linear terpenes and squalene variants by arthrobacter sp. | cells of arthrobacter sp. that had been isolated from soil were used to study oxidation of some linear terpenes and squalene variants. the cells oxidized geraniol, nerol, and farnesol to the corresponding aldehydes, with partial conversion of the geometrical isomerism of the alpha,beta-double bond. the squalene variant, squalene-2,3-oxide, was cleaved to 9,10-epoxygeranylacetone and geranylacetone. squalene-2,3-22,23-dioxide was cleaved to 9,10-epoxygeranylacetone. these products were optically ... | 1977 | 869527 |
| resistance of rhizobium strains to phygon, spergon, and thiram. | strains of rhizobium meliloti, rhizobium sp. nodulating cowpeas, and r. phaseoli derived from cultures susceptible to tetramethylthiuram disulfide (thiram), 2,3-dichloro-1,4-naphthoquinone (phygon), and 2,3,5,6-tetrachloro-p-benzoquinone (spergon), respectively, grew in the presence of high concentrations of the fungicides and converted them to products not toxic to the sensitive rhizobia. the results of chemical assays demonstrated that the pesticides were destroyed by the resistant bacteria bu ... | 1977 | 869529 |
| n-alkane oxidation enzymes of a pseudomonad. | a nicotinamide adenine dinucleotide (nad)-dependent n-alkane dehydrogenase and an nad phosphate (reduced form)-dependent alkane hydroxylase have been purified from cell-free extracts of pseudomonas sp. strain 196aa grown anaerobically on n-alkane. the n-alkane dehydrogenase (fraction r-3), obtained as a single peak from bio-gel p-60, showed an overall 135-fold purification and was demonstrated by infrared spectroscopy and gas chromatography to convert n-decane to 1-decene. the alkene hydroxylase ... | 1977 | 869535 |
| nitrification in histosols: a potential role for the heterotrophic nitrifier. | insufficient populations of nitrosomonas and nitrobacter were found in a pahokee muck soil (lithic medidaprit) to account for the nitrate concentration observed. to determine if heterotrophic nitrifiers could account for some of this discrepancy, a method was developed to measure the levels of heterotrophic nitrifiers in soil. a population of 4.1 x 10(5) arthrobacter per g of dry fallow soil, capable of producing nitrite and/or nitrate from reduced nitrogenous compounds, was observed. amendment ... | 1977 | 869537 |
| helminthosporium speciferum as the cause of dermal and nasal maduromycosis in a cow. | a 4-year-old santa gertrudis cow had epistaxis and loud nasal sounds associated with nasal granulomas. multiple cutaneous granulomatous nodules were on the ears and single ones on the tail, vulva and thigh. helminthosporium sp. was isolated from cultured lesions; two isolates from the ear and nasal mucosa were identified as h. speciferum. tissue sections stained with hematoxylin and eosin contained rounded forms ranging from 5x5 micronm to 12x19 micronm; an indistinct hyaline wall surrounded gra ... | 1977 | 870286 |
| cell wall studies of histoplasma capsulatum and blastomyces dermatitidis using autologous and heterologous enzymes. | enzymes capable of hydrolyzing cell walls of blastomyces dermatitidis and chemotypes i and ii of histoplasma capsulatum were prepared in the laboratory or obtained from commercial sources. they included chitinases, beta-1,3-glucanases, beta-1,6-glucanase, and pronase. monosaccharides and disaccharides of glucose released from the cell walls by the enzymes were determined qualitatively by paper and gas-liquid chromatography, and monosaccharides were quantitated by the latter technique as well. an ... | 1977 | 870437 |
| bacteremia and fungemia complicating neoplastic disease. a study of 364 cases. | during a 14 month period there were 364 episodes of bacteremia and fungemia at memorial sloan-kettering cancer center. the first nine months of the study were retrospective, and the next five prospective. in patients with leukemia or lymphoma (group 1), escherichia coli, pseudomonas aeruginosa, klebsiella pneumoniae and staphylococcus aureus were the most frequently isolated organisms. the mortality in this group was 40.5 per cent. in the patients with solid tumor (group 2), esch. coli, staph. a ... | 1977 | 871128 |
| localization and stability of hydrogenases from aerobic hydrogen bacteria. | alcaligenes eutrophus strains h 16, b 19, g 27 and n9a contained two different hydrogenases. one enzyme catalyzed the reduction of nad by hydrogen and was strictly localized in the soluble cell fraction. while the second enzyme was found to be particulate and unable to react with nad. all other tested strains, alcaligenes paradoxus sa 29, pseudomonas facilis, p. palleronii rh 2, pseudomonas sp. strain ga 3, paracoccus denitrificans, aquaspirillum autotrophicum sa 32, and corynebacterium autotrop ... | 1977 | 871226 |
| evaluation of a rapid gas-chromatographic method for the simultaneous quantitative determination of ethosuximide, phenyletheylmalonediamide, carbamazepine, phenobarbital, primidone and diphenylhydantoin in human serum. | a simple and rapid gas chromatographic method for the simultaneous estimation of the anticonvulsant drugs ethosuximide, carbamazepine, phenobarbital, primidone, diphenylhydantoin and the metabolite pema in serum is presented. the method is based on a simple ether extraction of 1 ml serum before and after precipitation of the proteins by ammonium sulfate and injection of the extract dissolved in methanol without derivative formation. gas chromatographic separation is performed on a highly polar a ... | 1977 | 872431 |
| characterization of bdellocysts of bdellovibrio sp. | bdellovibrio sp. strain w will infect and produce resting cells, termed bdellocysts, in a variety of gram-negative bacteria. bdellocysts appeared to be produced only within susceptible prey and never in their absence. optimum conditions for encystment included infection of stationary-phase prey cells in 0.05 m potassium phosphate buffer (ph 7.5) at concentrations of prey and bdellovibrios of 2 x 10(9) cells per ml with a multiplicity of infection of unity. bdellocysts contained more deoxyribonuc ... | 1977 | 873888 |
| ultrastructural changes during encystment and germination of bdellovibrio sp. | under proper conditions, bdellovibrio sp. strain w cells develop into bdellocysts in appropriate prey bacteria. after attachment and penetration of the prey cell, the encysting bdellovibrio began to accumulate inclusion material and increase in size, and was surrounded by an outer layer of amorphous electrondense material. the cytoplasm of the encysting cell appeared more electron dense, and nuclear areas appeared more compact. during germination of bdellocysts, the outer wall was uniformly brok ... | 1977 | 873889 |
| metabolism of pentachlorophenol by a soil microbe. | metabolism of pentachlorophenol (pcp)-ring-14c(u) by a microorganism (pseudomonas sp.) isolated from soil was examined. the microorganism degraded pcp-14c rapidly, and released 14co2 equivalent to approximately 50% of the pcp-14c added to the bacterial cell suspension in 1 hour of incubation. the results of amino acid analysis of the bacterial cells incubated with pcp-14c showed that radioactive carbon derived from pcp-14c was incorporated rapidly into the cell constituents, and that the pattern ... | 1977 | 874293 |
| mechanism of the enrichment of phosphatidylcholine in liver accompanying enzyme induction by phenobarbital. | the mechanism of the increase of phosphatidylcholine in liver, accompanying enzyme induction by phenobarbital, has been studied in rats. using radioactively labeled precursors, the two main pathways of phosphatidylcholine biosynthesis--the cdp-choline pathway and the methylation of phosphatidylethanolamine--were analyzed after pretreatment with 4 doses of phenobarbital (80 mg/kg) on 3 consecutive days. after i.v. injection of choline [me-3h], choline [me-14c] or nah2[32p]o4 the specific radioact ... | 1977 | 876402 |
| interference with fasciola hepatica snail finding by various aquatic organisms. | previous studies using radioactive miracidia have shown that a number of non-host snails and bivalves, interposed as 'decoys' in linear test channels, may interfere with the capacity of fasciola hepatica miracidia to infect lymnaea truncatula. applying similar experimental principles, the role of several other potential interferents have been analysed in the present study. daphnia pulex (cladocera) and larvae of corethra sp. (diptera) exercised significant interfering effects by protecting 'targ ... | 1977 | 876683 |
| a new marine leech austrobdella californiana n. sp. (hirudinea: piscicolidae) from southern california flatfishes. | | 1977 | 878147 |
| urease assay and urease-producing species of anaerobes in the bovine rumen and human feces. | a growth medium and test were developed for rapid detection of urease in fermentative anaerobic bacteria. using nonselective rumen fluid roll-tube agar medium and the new test, it was confirmed that peptostreptococcus productus is often the most numerous urease-forming species in human feces. also, some fecal strains of ruminococcus albus, clostridium innocuum, and clostridium beijerinckii produced urease. single strains of fusobacterium prausnitzii, coprococcus catus, and streptococcus mitis th ... | 1977 | 879770 |
| growth characteristics of an obligately psychrophilic vibrio sp. | | 1977 | 879962 |
| isolation and partial characterization of a low molecular weight acid stable protease inhibitor from human bronchial secretion. | an acid stable protease inhibitor was isolated from human bronchial secretion. two important stages of the purification procedure were affinity chromatography on trypsin bound to affi-gel 10 and ion-exchange chromatography on sp-sephadex c-50. the isolated inhibitor appeared as a single band on analytical disc electrophoresis and eluted as a homogeneous protein peak on gel filtration on sephadex g-75 corresponding to a molecular weight of about 10500. amino acid analyses showed no tryptophan or ... | 1977 | 881164 |
| coccidia (protozoa: eimeridae) of the herbivorous mole-rat, spalax leucodon nordmann. | a survey of 96 herbivorous mole-rats, spalax leucodon nordmann, in lalahan district of ankara, turkey, revealed the presence of 6 new species of coccidia. the species found, the shape and average length-width dimensions (in micrometers) of their oocysts, and the numbers of animals from which they were isolated were as follow: eimeria lalahanensis sp. n., subspherical to ellipsoidal (20.3 x 12.5), from 10; eimeria tuzdili sp. n., spherical to subspherical with radially striated oocyst wall, (20.5 ... | 1977 | 881650 |
| five new species of henneguya (protozoa: myxosporida) from ictalurid fishes. | four new species of henneguya (myxosporidan) are described from ictalurus punctatus rafinesque (channel catfish). they are as follows: henneguya postexilis sp. n. and henneguya longicauda sp. n. from the gills; henneguya adiposa sp. n. from the adipose fin; and henneguya diversis sp. n. from the liver, kidney, connective tissue of muscles and fins, and tumor-like external growths. henneguya pellis sp. n. is described from the dermis of ictalurus furcatus (lesueur) (blue catfish). the development ... | 1977 | 881651 |
| [nitrogen fixation in combined cultures of lipomyces and bacteria]. | nitrogen fixation by pure cultures of soil yeasts belonging to the genus lipomyces lodder et kreger van rij was not found by the acetylene method on a medium containing microelements and yeast autolysate. in a binary culture of l. lipofer 133 and pseudomonas sp. 5, a nitrogen fixing bacterium, the content of bound nitrogen was 3.6 times higher in aerobic conditions and 15 times higher in anaerobic conditions than its accumulation by individual bacterial culture. | 1977 | 882011 |
| a chromatographic procedure for the purification of human plasma albumin. | albumin is obtainable from human blood plasma by an ion exchange chromatographic procedure in a yield of about 95% and a purity well above pharmacopoeia requirements. cryosupernatant, factor ix depleted plasma is precipitated with 12 and 25% w/v polyethylene glycol 4000. the second precipitate is dissolved to 8% w/v protein and applied to a deae-sephadex a-50 or a deae-sepharose cl-6b column. albumin is further purified by chromatography on sp-sephadex c-50. gel filtration on sephadex g-25 is us ... | 1977 | 883250 |
| [formation of a new antibiotic, nocamycin, by a culture of nocardiopsis syringae sp. nov]. | a culture of a new actinomycetous species, nocardiopsis syrinage was isolated from a soil sample. the antibiotic produced by it was named nocamycin. it accumulated in the culture fluid on cultivation of the organism in a nutrient medium containing soybean meal, glycerin, sodium chloride and calcium carbonate. crystalline nocamycin had an antitumor effect. in inhibited by 72--73 per cent the development of an intraperitoneally implanted lymphadenosis of strain nk/li in mice. | 1977 | 883793 |
| electrical impedance measurements in the reading and monitoring of broth dilution susceptibility tests. | electrical impedance changes in the medium were studied during traditional broth dilution tests. tests involved clinical isolates of escherichia coli, staphylococcus aureus, pseudomonas aeruginosa, enterobacter sp., klebsiella, and enterococcus and ten antibiotics. minimal inhibitory concentration (mic) values from overnight visual readings were compared with mic values determined from electrical impedance end points, using inocula of 10(6) organisms per ml. ninety-three percent of the results w ... | 1977 | 883819 |
| studies on bacterial cell wall inhibitors. iii. 3-amino-3-deoxy-d-glucose, an inhibitor of bacterial cell wall synthesis. | it was shown that 3-amino-3-deoxy-d-glucose, one of the constituents of the kanamycin molecule and a metabolite of bacillus sp., inhibits the bacterial synthesis of cell wall. the antibiotic (100 microgram/ml) significantly inhibits the growth of staphylococcus aureus fda 209p as well as the incorporation of dl-[14c]alanine into the acid-insoluble macromolecular fraction of its growing cells in the presence of chloramphenicol (100 microgram/ml). in contrast, the antibiotic does not affect the in ... | 1977 | 884150 |
| morphology and host specificity of cryptobia catostomi n.sp. (protozoa: kinetoplastida) from white sucker (catostomus commersoni) in southern ontario. | | 1977 | 884636 |
| macrolide antibiotics m-4365 produced by micromonospora. i. taxonomy, production, isolation, characterization and properties. | a series of basic 16-membered macrolide antibiotics, m-4365 a1, a2, a3, g1, g2 and g3, were isolated from the culture broth of strain mcrl 0940 which is assigned to be a new species of micromonospora and for which the name micromonospora capillata sp. nov. is proposed. among these antibiotics, m-4365 a2 and g2 showed strong inhibitory activity against gram-positive and gram-negative bacteria. | 1977 | 885804 |
| characterization of lysocardiolipin from acinetobacter sp. ho1-n. | triacyl-lysocardiolipin (triacyl-lcl) and diacyl-lcl were isolated from acinetobacter sp. ho1-n, and their structures were determined by chemical, physical, and enzymatic procedures. deacylation of triacyl-lcl and diacyl-lcl yielded bis-glycerylphosphorylglycerol. periodate oxidation of both lysolipids was negative. diglyceride and 2-monoglyceride resulted from the acetic acid hydrolysis of triacyl-lcl, whereas 2-monoglyceride was the sole product obtained from diacyl-lcl. cardiolipin (cl)-speci ... | 1977 | 885838 |
| polyamines in trypanosomatids. | polyamines were determined by n-butanol extraction and thin-layer chromatography in four trypanosomatids: trypanosoma brucei (rat infection) and cultures of crithidia fasciculata, leptomonas sp., and trypanosoma mega. all had putrescine and spermidine but no detectable spermine. putrescine and spermidine levels were quantitated for extracts of leptomonas during the normal growth cycle. spermidine values peaked 18 h before peak cell populations. spermidine-putrescine ratios for all organisms were ... | 1977 | 885842 |
| [polyacrylamid-gel-electrophoresis of haemophilus proteins (author's transl)]. | after phenol-acetic-acid extraction the following haemophilus strains resp. their proteins were subjected the polyacrylamid-gel-electrophoresis in presence of 8 m urea: strains of the serovar a of h. paragallinarum: 0083, 1516, 1598, 2213, 1645, 1646, löhren, 2671, 1385, 758, 17756; strains of serovar b of h. paragallinarum: 0222, 2600, 733, 2028, 1596, 2026, 1676, 245, the s and r-form of 2403 as well as the strains 782 and 1655, which were not serotyped; strains of h. paravium sp. nova (hinz: ... | 1977 | 888594 |
| purification and some properties of 4-hydroxyphenylpyruvate dioxygenase from pseudomonas sp. p. j. 874. | | 1977 | 889802 |
| purification and characterization of rat liver microsomal monoacylglycerol lipase in comparison to the other esterases. | monoacylglycerol lipase was separated from triacylglycerol lipase and two kinds of esterase in the microsomes by heparin treatment and deae-cellulose column chromatography. monoacylglycerol lipase was purified about 1200-fold by deae-cellulose, hydroxylapatite, sp-sephadex and sephadex g-100 column chromatography from rat liver whole homogenate. the purified enzyme showed a single protein band by sodium dodecyl sul fate gel electrophoresis. the molecular weight was calculated to be approx. 62 00 ... | 1977 | 889853 |
| in vitro effects of streptomyces protease inhibitors on human kidney renin activity. | the effects of several low molecular streptomyces protease inhibitors on human kidney renin activity have been observed. this study shows that, in addition to pepstatin a, leupeptin, antipain, and sp-i also inhibit human renin activity in vitro. | 1977 | 893363 |
| [parasite eggs identified in material from archaeological excavations in ribe (the viking age) (author's transl)]. | eggs of fasciola hepatica, ascaris sp., taenia sp., and trichuris sp. have been demonstrated in archaeological excavations from the early viking period (750--800 a.d.) in ribe, the oldest urban society of denmark. the origin of the faecal material is discussed. the parasitological examinations are continued and extended. | 1977 | 896405 |
| cardiovascular effects of synthetic substance p. | the cardiovascular action of substance p (sp) has been studied in anaesthetized dogs. an analeptic respiratory and hypotensive action has been noted. the chronology of both effects would suggest that sp could be rapidly metabolized. the action of sp on respiration and general metabolism could be attributed either to one of its metabolites or to a secondary effect. it has not yet been stated to which mechanism--enzymatic or hormonal--it might be due. | 1977 | 896951 |
| [description of streptomyces malvinense nov. sp. isolated from the soil of islas malvinas]. | in the course of a study on antibiotic activity of microorganisms isolated from soil samples from port stanley, islas malvinas, argentina, four thermophilic actinomycetes were sudied. the four strains had the same morphological and physiological characteristics. the new species belonged to seccion rectiflexibilis genus streptomyces and had the following characteristics: sporophores straight, round spores of 1,5 or 2 millimicron in diameter. the colonies in agar meat peptone were round, flat, mea ... | 1977 | 897262 |
| [comparative study of plaque formation by freshly isolated and laboratory strains of rubella virus]. | the plaque-forming properties of 8 freshly isolated, 2 attenuated strains, ra 27/3 and cendehill, and sp-2 strain adapted to bhk-21/13c cell culture were studied. the concentration of sodium bicarbonate in the agar overlay influenced significantly the plaque production by rubella virus. its optimum concentration was 0.22%. at higher (0.45%) and very low (0.11%) concentrations of sodium bicarbonate all the strains produced a smaller number of plaques. the strains were found to be sensitive to inh ... | 1977 | 898894 |
| [pseudophysaloptera kahmanni n. sp. (nematoda: physalopteridae), a parasite of the stomach of the dormouse eliomys quercinus ophiusae thomas, 1925 (rodentia: gliridae) in formentera (balearic islands) (author's transl)]. | a new nematode physalopteridae, pseudophysaloptera kahmanni n. sp., parasitizing the stomach of the dormouse eliomys quercinus ophiusae thomas, 1925 (rodentia: gliridae) in formentera (balearic islands, spain) is described. it is the first and only species of the genus pseudophysaloptera baylis, 1934 to be known parasitizing rodents in the nature. | 1977 | 900771 |
| dithionite reduction in the presence of a tetrapyrrole-containing fraction from the desulfoviridin of desulfovibrio gigas. | low-molecular-weight fractions obtained from the desulfoviridin of d. gigas and from the growth medium of desulfovibrio sp. 10455 promoted the reduction of sodium dithionite to sulphide in the presence of reduced methylviologen. these fractions contained a tetrapyrrole of the isobacteriochlorin type which was not complexed with iron, nor was it complexed with protein. the observations are discussed in relation to the function of sulphite reductases in the sulphate-reducing bacteria. | 1977 | 901305 |
| electric field control of lipase membrane activity. | lipase (ec 3.1.1.3., from pseudomonas sp.) was entrapped in collagen membrane containing liquid crystal (4-methoxybenzilidene-4'-n-butylaniline). the activity of the lipase-liquid crystal membrane at an applied voltage of 4 v was 3.4 compared to a membrane tested without imposition of an external electric field. a linear relationship was observed between the activity of the lipase-liquid crystal membrane and the current. the apparent michaelis constant (k'm) of the lipase-liquid crystal membrane ... | 1977 | 901930 |
| disseminated septic meningitis in a mare. | physical, neurologic, and clinicopathologic findings in a 3-year-old female morgan horse with anorexia and nasal discharge suggested suppurative meningitis. necropsy findings substantiated the tentative diagnosis. actinomyces sp was cultured from a meningeal abscess surrounding the pituitary gland and from resolving lung abscesses. | 1977 | 903291 |
| coelomomyces lairdi, n. sp., a fungal parasite of larvae of the anopheles (cellia) punctulatus complex (diptera: culicidae) from the highlands of irian jaya (indonesian new guinea). | | 1977 | 903932 |
| mycotic granulomatous pneumonia in a lamb [case report]. | a case of mycotic granulomatous pneumonia due to aspergillus sp. is described. the route of infection is discussed. | 1977 | 905117 |
| mycotic keratitis due to rhizoctonia sp. | a case of mycotic keratitis due to rhizoctonia sp. is reported for the first time. fungal hyphae were detected in corneal scrapings and cultures were found positive for rhizoctonia sp. on two occasions. species could not be identified and it has been disposed in herb. imi as rhizoctonia sp. (imi 200029). the isolate grew faster at 37 degrees c than at 28 degrees c and its pathogenicity was established in rabbit's eye. | 1977 | 905918 |
| skin and nail infection by scytalidium hyalinum sp. nov. | eight cases of fungal infection are described in which an arthrosporic hyphomycete has been isolated from patients of jamaican and west african origin. in most cases the organism was the only one isolated and in one case it was isolated 3 times over a 5 month period. the fungus is described as a new species of scytalidium (s. hyalinum). | 1977 | 905921 |
| [foot mycetoma of double etiology]. | a patient coming from an area of dry tropical forest was studied. this patient had in his right foot two tumor-like growths localized, one in the anterior and superior part of the foot, the other near the malleoli. from the first tumor, light-colored grains were obtained, and actinomadura madurae was cultured. from the tumor near the malleoli only black grains were isolated from which a pyrenochaeta sp. was cultured. | 1977 | 905922 |
| [cercaria ogunis n. sp. (echinostomatidae) from bulinus globosus in west africa (author's transl)]. | cercaria ogunis n. sp. (echinostomatidae) is described. the cercaria has 47 collar spines, 2 x 15 flame cells, a small dorsal and a small ventral finfold near the tip of the tail. a peculiar organ located dorsally next to the brain is explained, hypothetically, as a statocyst. in the behaviour of the cercaria there are some conspicuous features, i.e. a rapid swimming-velocity, a striking positive geotaxis and a positive phototaxis. second intermediate hosts are gastropods and amphibians. the met ... | 1977 | 906634 |
| sp-sephadex equilibrium chromatography of bradykinin and related peptides: application to trypsin-treated human plasma. | | 1977 | 907100 |
| decomposition of 14c-labelled lignin and phenols by a nocardia sp. | a gram-positive bacterium which was isolated from a finnish soil and identified as a nocardia sp., was able to decompose lignin and to assimilate lignin degradation products as a carbon source. it could release 14co2 from 14c-labelled methoxyl groups, side chains or ring carbons of coniferyl alcohol dehydropolymers (dhp) and from specifically 14c-labelled lignin of plant material. furthermore, it could release 14co2 from phenolcarboxylic and cinnamic acids and alcohols labelled in the och3, cooh ... | 1977 | 907426 |
| fad-dependent malate dehydrogenase from mycobacterium sp. strain takeo : a possible role of phospholipid. | | 1977 | 907699 |
| empidomermis cozii n.gen., n.sp. (mermithidae: nematoda) a parasite of anopheles funestus (culicidae: diptera) in west africa. | | 1977 | 907930 |
| [coccoid cells and spheroplasts in cultures of the genus thermus]. | the formation of capable of self-reproduction coccoid cells, and of spheroplasts, was studied in the cultures of thermus ruber and pigmentless thermus sp. by light and electron microscopy. the primary origination of cocci might be due to non-uniform or multiple cell division. spheroplasts can be produced either from coccoid or from rod-like cells as a result of autolysis of the glycopeptide layer of the cell wall. the spheroplasts of the cultures belonging to the thermus genus are characterized ... | 1977 | 909468 |
| brain damage by extracts of parasitised annual ryegrass (lolium rigidum) in nursling rats. | extracts of annual ryegrass (lolium rigidum) infected with anguina sp. and corynebacterium sp., and associated with an outbreak of annual ryegrass toxicity in sheep, were administered to 2-week-old rats by a single intraperitoneal injection. rats that received a lethal dose of toxin developed neurological signs including incoordination and convulsions from the second day and most died between 2 and 7 days after injection. histologically, the brains showed widespread lesions of focal necrosis con ... | 1977 | 911279 |
| [determination of the molecular weight and form of the molecule histidine decarboxylase by the method of small-angle x-ray scattering]. | shape and molecular weight of histidine-decarboxylase from micrococus sp. n. were studied by the method of x-ray small-angle scattering. the inertion radius of the molecule: rg-2,93 nm. the shape of the molecule is adequately approximated by rotation ellipsoids of two possible variants: the elongated and flattened ones. the eccentricity in both cases is 1.6. the volume of the enzyme molecule v=190 nm3. the molecular weight of histidine-dexarboxilase obtained from the x-ray experiment m=102 000 c ... | 1977 | 911898 |
| taxonomy of a new streptomyces sp. from a kerala soil sample. | | 1977 | 914352 |
| septic polyarthritis associated with bacterial endocarditis in two dogs. | two dogs were examined because of chronic shifting lameness. in each case, lameness was attributed to septic polyarthritis, as documented by synovial fluid analysis and culture. in 1 dog, antemortem diagnosis of bacterial endocarditis was verified by clinical and culture data. treatment of both dogs was unsuccessful, and necropsy of each dog revealed bacterial endocarditis with coexistent septic polyarthritis. bacteriologic blood cultures yielded an anaerobic streptococcus sp (dog 1) and pasteur ... | 1977 | 914687 |
| streptococcus pleomorphus sp.nov.: an anaerobic streptococcus isolated mainly from the caeca of birds. | a new species streptococcus pleomorphus is described. it is obligately anaerobic and classified in the genus streptococcus because it is a gram-positive coccus growing in pairs and chains, with a homolactic fermentation of glucose producing l-lactic acid. the gc content of the dna is 39 mol%. the organism has been mainly isolated from chickens, turkeys and ducks. | 1977 | 915476 |
| new species of gyrodactylus and dactylogyrus (trematoda: monogenea) from fishes of nebraska. | six new monogenetic trematodes are described from nebraska fishes: gyrodactylus bulbacanthus sp. n. from fundulus kansae (garman); g. callawayensis sp. n. from notropis lutrensis (baird and girard); g. eos sp. n. from phoxinus eos (cope); g. nebraskensis from phoxinus neogaeus (cope); g. planensis from notropis dorsalis (agassiz); and dactylogyrus pectenatus from pimephales promelas (rafinesque). this is the second report of monogeneans from nebraska fishes. | 1977 | 915609 |
| histochemical and thin layer chromatographic analyses of neutral lipids in metracercarial and adult cotylurus sp. (trematoda: strigeidae). | histochemical and thin layer chromatographic studies were made on neutral lipids of cotylurus sp. (trematoda) metacercariae obtained from physa heterostropha snails and from adults grown in the upper ileum of the domestic chick. oil red o staining demonstrated neutral lipids in the intestinal lumina, eggs and vitellaria of adults, and the excretory system of metarcercariae. as determined by tlc, excysted metacercariae incubated in a non-nutrient salt solution excreted free fatty acids, sterols, ... | 1977 | 915612 |
| eimeria zapi sp. n. from the meadow jumping mouse, zapus hudsonius zimmerman in southwestern michigan. | four of 5 meadow jumping mice (zapus hudsonius) captured had in their feces a previously undescribed species of eimeria which is named eimeria zapi sp. n. the sporulated oocysts measured 21.7 (19.5-24.0) x 20.3 (17.5-23.0) micrometer. the single-layered oocyst wall was 1.5 micrometer thick, rough, pitted and appeared clear-to-amber. usually 2 polar granules could be seen. an oocyst residuum was not observed. each sporocyst averaged 16.0 (12.5-18.0) x 9.7 (7.5-11.5)micrometer. a substiedal body w ... | 1977 | 915841 |
| trypanosoma (herpetosoma) longiflagellum sp.n. from the tomb rat, taphozous nudiventris, from iraq. | trypanosoma (herpetosoma) longiflagellum sp.n. (protozoa: trypanosomatidae) from a bat, taphozous nudiventris, from iraq is described. the trypanosome measures 24.0 to 34.2 micron (mean 26.4 micron, sd 2.5) in total length, 13.8 to 18.2 micron (mean 15.2 micron, sd 1.0) in body length, is 1.5 to 2.9 micron (mean 2.0 micron, sd 0.3) in breadth and has a free flagellum of 10.2 to 16.0 micron (mean 11.2 micron, sd 1.6). the nuclear index is 1.4 to 2.1 (mean 1.7 sd 0.1) and the kinetoplastic index i ... | 1977 | 916138 |
| histopathologic alterations associated with anisakis larvae in pacific herring from oregon. | a histopathologic study of anisakis sp. larvae in pacific herring (clupea harengus pallasi) is presented. tissue alterations included mechanical compression of the pancreas and liver, granulomatous inflammation and necrosis of the liver, and trauma to the muscularis externa of the pyloric caeca. host exudate in most lesions contained macrophages (histiocytes) and lymphocytes. | 1977 | 916144 |
| [on the sensitizing capacity of naturally occurring quinones. part iii. a new contact allergen (2-dimethylallyl-1,4-benzoquinone) from phagnalon sp. (compositae) (author's transl)]. | | 1977 | 918170 |
| [studies of the decontamination of the sewage from animal husbandry farms]. | investigations revealed that under the conditions prevailing in the districts of sofia and .pernik ascaris suum and trichocephalus suis eggs remained viable at the conventional storage of liquid manure on the large farms for about a year, and fasciola hepatica and paramphistomum sp. eggs--for 2 to 3 months. the methods of electrocoagulation and electroflotation could be employed with success in the cleansing and rendering harmless of the sewage waters after the preliminary treatment with calcium ... | 1977 | 919336 |
| survival of aegyptianella pullorum, anaplasma marginale and various parasitic protozoa following prolonged storage in liquid nitrogen. | various protozoa species were examined using in vivo and in vitro methods to determine their ability to survive prolonged periods of storage in liquid nitrogen. the following protozoan species were successfully recovered after they had been cryopreserved for a period over 10 years: trypanosoma lewisi, t. cruzi, t. congolense, t. brucei, t. rhodesiense, t. gambiense, t. evansi, t. equinum, t. equiperdum, leishmania donovani, plasmodium berghei, p. praecox (relictum), babesia rodhaini and b. canis ... | 1977 | 919686 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |
| 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 |