| a modified sedimentation method for counting platelets in blood. | a sedimentation method for counting human blood platelets is proposed which uses a fluid of sp.gr. i.057 at an osmolarity of 320 milliosmols. the fluid is a mixture of lymphoprep and isoton ii. after centrifugation at about 200 platelets are counted on an electronic particle counter. | 1978 | 638087 |
| increased extracellular production of a cholinesterase-solubilising factor by cytophaga ncmb 1314 during magnesium starvation. | a cytophaga sp. with the property of liberating a cholinesterase which is found in body muscle of plaice was studied. the liberation was caused by a factor of which more than 90% was found outside the bacterial cell and might possibly be associated within the slime material surrounding the bacteria. magnesium limitation during growth of cytophaga sp. in batch cultures resulted in an about 10-fold increase in extracellular factor activity. the increase could be immediately stopped by addition of ... | 1978 | 638892 |
| trypanosoma (herpetosoma) lemmi sp. n. from the norwegian lemming, lemmus lemmus (l.). | | 1978 | 640525 |
| identification and synthesis of acyl-phosphatidylglycerol in acinetobacter sp. ho1-n. | a minor phospholipid from acinetobacter sp. ho1-n was identified as acyl-phosphatidylglycerol. acyl-phosphatidylglycerol synthesis by outer-membrane preparations appeared to be a result of phospholipase a activity. | 1978 | 641017 |
| physiological basis of the selective advantage of a spirillum sp. in a carbon-limited environment. | a spirillum sp. and a pseudomonas sp. possessing crossing substrate saturation curves for l-lactate were isolated from fresh water by chemostat enrichment. their ks and mumax values for l-lactate were: spirillum sp., 23 micrometer and 0.35 h-1, respectively; pseudomonas sp., 91 micrometer and 0.64 h-1, respectively. under l-lactate limitation, pseudomonas sp. outgrew spirillum s. at dilution rates (d) above 0.29 h-1, but the converse occurred at lower d values. the advantage of spirillum sp. inc ... | 1978 | 641523 |
| progamotaenia ruficola sp. n. (cestoda: anoplocephalidae) from the red kangaroo, macropus rufus (marsupialia). | progamotaenia ruficola sp. n. is described from the red kangaroo (macropus rufus) from new south wales, australia. it is distinguished from other similar species having paired, nondiverticulate uteri in each prolottis: progamotaenia festiva (rudolphi 1819), p. diaphana (zschokke 1907), and p. macropodis beveridge 1976, by the extremely broad, straight-edged velum, the lack of an external seminal vesicle, the cirrus armature, the number of testes, the lack of vaginal atrophy following inseminatio ... | 1978 | 641671 |
| gastrointestinal parasitism of iowa coyotes in relation to age. | taenia sp., physaloptera sp., ancylostoma caninum, toxascaris leonina, and/or trichuris vulpis were recovered from gastrointestinal tracts of 141 and 144 (97.9%) coyotes ranging from 1/2 to 8 1/2 years of age. ancylostoma caninum exhibited a significant decline in both prevalence and mean number per coyote with increasing age of the host. taenia sp. appeared with consistently high prevalence in all age classes. physaloptera sp. and t. leonina showed general reductions in prevalence in all age cl ... | 1978 | 641673 |
| plasmodium pessoai sp. n. from two costa rican snakes. | a unique malaria parasite species was found in 1/1 spilotes pullatus (colubridae) and 1/70 lachesis muta (crotalidae) from the moist atlantic lowland forests of eastern costa rica. it is distinguished by small, sausage-shaped gametocytes (x 10.4 by 4.6 mu), growing schizonts that often contain a noticeable digestive vacuole with the contents partially visible, and striking spherical or bouquet-shaped segmenters whose precise merozoite numbers are difficult to discern (about 22-32) because of an ... | 1978 | 641676 |
| [acroloxus lacustris (fam. ancylidae) as a new intermediate trematode host in the ussr]. | 585 specimens of the mollusk acroloxus lacustris were parasitologically investigated in the divichin bay of the caspian sea. 3 species of cercarians (echinostoma sp., echinoparyphium recurvatum, asymphylodora sp.), 2 species of parthenites (echinostomatidae gen. sp. redia i, echinostomatidae gen. sp. redia ii) and 4 species of metacercarians (metacercaria gen. sp. i, metacercaria gen. sp. ii. metacercaria gen. sp. iii, tetracotyle sp.) were found in the specimens examined. a. lacustris is first ... | 1978 | 643308 |
| biocidal properties of anti-icing additives for aircraft fuels. | the biocidal and biostatic activities of seven glycol monoalkyl ether compounds were evaluated as part of an effort to find an improved anti-icing additive for jet aircraft fuel. typical fuel contaminants, cladosporium resinae, gliomastix sp., candida sp., pseudomonas aeruginosa, and a mixed culture containing sulfate-reducing bacteria were used as assay organisms. studies were carried out over 3 to 4 months in two-phase systems containing jet fuel and aqueous media. diethylene glycol monomethyl ... | 1978 | 646356 |
| effects of low concentrations of bisulfite-sulfite and nitrite on microorganisms. | a wide range of microorganisms was tested to determine their sensitivity to low concentrations of bisulfite-sulfite and nitrite, solubility products of so2 and no2, respectively. photosynthesis by blue-green algae (cyanobacteria) was more strongly inhibited by 0.1 mm bisulfite-sulfite and 1 mm nitrite at ph 6.0 than photosynthesis by eucaryotic algae and respiration of bacteria, fungi, and protozoa. at ph 7.7, blue-green algae were still more sensitive to bisulfite-sulfite and nitrite than eucar ... | 1978 | 646357 |
| interactions between the diatom thallasiosira pseudonanna and an associated pseudomonad in a mariculture system. | the marine diatom thallasiosira pseudonanna (3h) and several bacteria associated with it were isolated from batch cultures at the university of delaware mariculture facility. the interaction between the algae and each of the bacteria was investigated. one of the isolates, t827/2b (pseudomonas sp.), was incapable of surviving in f/2 culture medium unless the algae were present. when the algae and t827/2b were grown together in the f/2 medium, the bacterial growth was stimulated and the algal grow ... | 1978 | 646360 |
| effect of light intensity of vesicle formation in chlorobium. | 1. chlorobium limicola forma sp. thiosulfatophilum was cultivated at 22 and 22000 lux. 2. the content of bchl d on a protein basis in the low light intensity cultures was about twice that of the high light intensity cultures; 3. after growth at 22 lux the red bchl d peak was at c. 743 nm, while at the higher intensity this peak was at c. 732 nm; 4. electron microscopy of thin sections of chlorobium revealed that vesicle size was greater at the low light intensity than at the high. 5. this was co ... | 1978 | 646582 |
| [determination of the molecular weight and radius of gyration of lactobacillus 30a histidine decarboxylase and micrococcus sp. n. histidine decarboxylase]. | | 1978 | 647048 |
| inducing effect of plant cells on nitrogenase activity by spirillum and rhizobium in vitro. | eleven different plant cell tissue cultures of both legume and non-legume origin have been grown in direct association, and in separate but close proximal association with both spirillum lipoferum and rhizobium sp. 32h1. basic similarities were found in the nutritional requirement for the induction of nitrogenase activity (c2h2) in both organisms. in the absence of plant cell cultures both organisms need to be provided with a pentose sugar and a tricarboxylic acid to induce high levels of nitrog ... | 1978 | 647472 |
| transformation of azotobacter vinelandii strains unable to fix nitrogen with rhizobium spp. dna. | the phenotypes of azotobacter vinelandii atcc 12837 strains defective in nitrogen fixation (nif-) were characterized by intrageneric transformation with known nif- strains of a. vinelandii op. these former mutant strains were used as recipients for intergeneric transformation by deoxyribonucleic acid (dna) prepared from rhizobium spp. to determine if the rhizobia would transform the azotobacter nif- phenotypes to nif+. the frequency of nif+ transformants using rhizobium dna was always less than ... | 1978 | 647476 |
| biosynthesis of chloramphenicol in streptomyces sp. 3022a. properties of an aminotransferase accepting p-aminophenylalanine as a substrate. | in the presence of alpha-ketoglutarate, cell-free extracts of streptomyces species 3022a catalysed transfer of the amino group from p-aminophenylalanine, yielding an unstable product similar to that obtained by the action of d- and l-amino acid oxidases on the amino acid. the enzyme, purified 16-fold from cell homogenates by chromatography on ion-exchange celluloses, hydroxyapatite, and cross-linked dextran gel, has a molecular weight of 90 000 and a broad ph optimum at 8.0. it is active with l- ... | 1978 | 647477 |
| teichomycins, new antibiotics from actinoplanes teichomyceticus nov. sp. ii. extraction and chemical characterization. | the teichomycins are new antibiotics produced by actinoplanes teichomyceticus nov. sp. teichomycin a1 is a phosphorus-containing antibiotic, active in vitro and in vivo against gram-positive bacteria, and active only in vitro against gram-negative bacteria. teichomycin a2 is a chlorine-containing antibiotic, active in vitro and in vivo against gram-positive bacteria. isolation, purification and physical and chemical properties of the two antibiotics are reported. teichomycin a1 is a member of th ... | 1978 | 649512 |
| isolation and partial characterization of two different subunits from the molybdenum-iron protein of azotobacter vinelandii nitrogenase. | the molybdenum-iron protein of azotobacter vinelandii nitrogenase was separated into two subunits of equal concentration by ion exchange chromatography on sulfopropyl (sp) sephadex at ph 5.4 in 7 m urea. better than 90% yield of each subunit was obtained on a preparative scale if the reduced carboxymethylated molybdenum-iron protein was incubated at 45 degrees c for 45 min prior to chromatography. without the heating step low yields of the subunits were obtained. although the amino acid composit ... | 1978 | 649581 |
| survey for toxoplasmosis in wild and domestic animals from norway and sweden. | fifty-nine of 1250 (4.7%) wild and domestic animals from norway and sweden had positive dye-test titers (greater than or equal to 1:8) for antibody against toxoplasma gondii. a dye-test titer of 1:8 (30-40 i.u.) or higher was detected in 3 of 732 small rodents (0.4%), 21 of 87 domestic cats (24%), 9 of 29 red foxes (vulpes vulpes) (31%), 2 of 2 domesticated arctic foxes (alopex lagopus), 12 of 99 red deer (cervus elaphus) (12%), 5 of 8 roe deer (capreolus capreolus) (63%) and in 7 of 34 wild rab ... | 1978 | 650778 |
| naturally occurring hepatozoonosis in a coyote. | schizonts of hepatozoon sp. were found in the myocardium of an adult cyote (canis latrans) collected from the aransas national wildlife refuge, austwell, texas. this constitutes the first time hepatozoonosis has been recorded in canidae in the western hemisphere. | 1978 | 650792 |
| production and evaluation of secretin antibodies. | antibodies were readily produced in three rabbits to unconjugated pure natural porcine secretin, and in two rabbits to synthetic porcine secretin conjugated to bsa. the final dilutions of the antisera to bind 50% of 1 fmol 125-i-labeled secretin prepared by the chloramine-t method and purified on a sephadex g-15 and a sp sephadex c-25 column varied between 1:14,500 and 1:245,000. the effective equilibrium constants (keff) according to scatchard varied between 0.8 x 10(11) and 3.4 x 10(11), the a ... | 1978 | 654847 |
| bacterial dehalogenation of halogenated alkanes and fatty acids. | sewage samples dehalogenated 1,9-dichloronane, 1-chloroheptane, and 6-bromohexanoate, but an organism able to use 1,9-dichlorononane as the sole carbon source could not be isolated from these samples. resting cells of pseudomonas sp. grown on n-undecane, but not cells grown on glycerol, dehalogenated 1,9-dichlorononane in the presence of chloramphenicol. resting cells of five other n-undecane-utilizing bacteria cleaved the halogen from dichlorononane and 6-bromohexanoate, and four dehalogenated ... | 1978 | 655703 |
| sheep red blood cell membrane structure: an immunological probe. | pronase digested sheep red blood cell stromata were employed as probe in order to investigate erythrocyte membrane arrangement by immunological way. antiserum from rabbits immunized with erythrocyte ghost pronase residue assayed for its hemolytic activity against intact sheep red cells, showed an high titer, in a good agreement with the presence in the same residue of externally located membrane antigens. immunoelectrophoretic analysis was performed between the solubilized residue and precipitin ... | 1978 | 656197 |
| [actinomycetes antagonistic to fungi and not affecting rhizobium meliloti]. | the effects of 481 actinomycetes isolated from agricultural soils supporting good growth of alfalfa or clover on two efficient strains of rhizobium meliloti a2 and s14 were studied. strain a2 was inhibited by 28% of the isolates and strain s14 was inhibited by 31% of them. no significant difference was found between the resistance of both actinomycete strains. the effects of the 288 isolates not affecting r. meliloti on six fungi were also studied. the most sensitive fungus was stemphylium sarci ... | 1978 | 657008 |
| bilharziasis in a nanday conure. | natural infection with a schistosome in a pet nanday conure caused weight loss, blood-flecked diarrhea, and death. hemorrhagicoulcerative colitis and cloacitis were found at necropsy. the schistosome was not identified but was believed to be gigantobilharzia sp. | 1978 | 659304 |
| teichomycins, new antibiotics from actinoplanes teichomyceticus nov. sp. i. description of the producer strain, fermentation studies and biological properties. | a soil isolate of actinoplanes that produces the chemically unrelated new antibiotics teichomycins a1 and a2 has been proposed as a new species named actinoplanes teichomyceticus nov. sp. (atcc 31121). studies of medium and fermentation conditions indicated that the highest antibiotic titers, ca 900 u/ml, are obtained in a medium containing 1% (w/v) glucose, 1% cotton seed meal, 1% malt extract, and 0.4% yeast extract. both teichomycin a1 and teichomycin a2 are highly active against gram-positiv ... | 1978 | 659325 |
| 1,3-diphenethylurea from streptomyces sp. no. am-2498. | | 1978 | 659334 |
| sancassania sp. (acarina: acaridae) superimposed upon scabs of psoroptes ovis (acarina: psoroptidae) on a hereford heifer in new mexico. | | 1978 | 660392 |
| [logarithmic attachment to a monochromator for recording small changes in absorption]. | the paper describes a device consisting of a spectrophotometer (sp-4, sp-4a, sp-16), logarithmic amplifier, recording instrument and a flow-type cuvette that allows quantitative registration of biological substances during their separation on chromatographic columns. | 1978 | 662834 |
| composition and properties of the actinomycete flora in a ferralitic tropical soil (oxisol)-sugar cane ecological system. | streptomycetes constituted about 46--48 per cent of the total aerobic microflora in the cultivated horizon of the studied ferralitic tropical soil below sugar cane plantation. this streptomycete fraction of the soil microbial community was composed of 13 (or more) species of streptomyces (s. chromofuscus, s. chromogenus, s. diastatochromogenes, s. flavochromogenes, s. griseolus, s. nigrescens, s. phaeofaciens, s. sterilis, s. violaceus, streptomyces sp. i--iii), and streptoverticillium (sv. aspe ... | 1978 | 664932 |
| potentiation by substance p of contractions of the isolated vas deferens of the mouse elicited by electric field stimulation and by drugs. | 1 isolated vasa deferentia from the mouse were opened longitudinally and suspended in krebs solution at 37 degrees c in an organ bath. contractions of the muscle were elicited by electric field stimulation, noradrenaline (10(-6) m) and acetylcholine (10(-6) m). continued transmural stimulation evoked a biphasic response comprising a rapid twitch followed about 10 s later by a smaller, sustained rise in muscle tone.2 the amplitudes of nerve-mediated and drug-induced responses were considerably po ... | 1978 | 667424 |
| halobacterium vallismortis sp. nov. an amylolytic and carbohydrate-metabolizing, extremely halophilic bacterium. | the extremely halophilic bacterium (formerly designated as strain j.f. 54) isolated from salt pools of the death valley, california, is a motile, gram-negative, extremely pleomorphic organism, aerobe, and facultative anaerobe. a variety of carbohydrates are assimilated with or without acid production; soluble starch is hydrolyzed. the organism is not proteolytic; catalase, oxidase, and dnase reactions are positive; tween 20 is slightly hydrolyzed, but tweens 40, 60, and 80 are not. nitrates are ... | 1978 | 667737 |
| oxyspirura turcottei n.sp. (nematoda: thelaziidae) from the eastern wild turkey (meleagris gallopavo silvestris). | | 1978 | 667760 |
| experimental pathogenicity and mortality in ligated ileal loop studies of the newly reported halophilic lactose-positive vibrio sp. | laboratory animals were challenged subcutaneously, intraperitoneally, and intravenously with the halophilic lactose-positive vibrio. intraperitoneal inocula of 10(8) organisms proved to be rapidly lethal in mice, rats, and hamsters. the 50% lethal doese in icr strain mice was estimatd to be 8 x 10(5) live cells, injected intraperitoneally or subcutaneously. subtaneous inocula in mice resulted in severe local infections, characterized by gross edema, and for those animals surviving longer than 48 ... | 1978 | 669787 |
| glycocinnamoylspermidines, a new class of antibiotics. i. description and fermentation of the organism producing the ll-bm123 antibiotics. | the producing organism for the new broad spectrum glycocinnamoylspermidine antibiotics designated ll-bm123beta, gamma1 and gamma2 was characterized as a nocardia sp. by chemical analysis of the cell wall, growth requirements, morphology and physiological reactions. fermentation conditions to elaborate and analytical methods to characterize these antibiotics in fermentation filtrates are described. | 1978 | 670081 |
| methylamine dehydrogenase of pseudomonas sp. j. reconstitution from its subunits. | conditions for the restoration of catalytic activity from heavy and light subunits which had been isolated from methylamine dehydrogenase of pseudomonas sp. j were investigated in vitro. maximal restoration of the activity was obtained in 0.8 m potassium phosphate buffer, ph 7.0-9.3, at 30 degrees c with equimolar concentrations of the two subunits. under the optimal conditions, the recovery of enzyme activity was 86% and the time required for half-maximal recovery was about 3 min. addition of b ... | 1978 | 670154 |
| methylamine dehydrogenase of pseudomonas am1. a subunit enzyme. | a methylamine dehydrogenase was purified to homogeneity from pseudomonas am1 and obtained in crystalline form. it was found to be a subunit enzyme composed of two kinds of subunit, light and heavy. these two subunits were isolated by sephadex g-100 gel chromatography after incubation of the enzyme with guanidine hydrochloride. molecular weights of 13,000 daltons for the light subunit and 40,000 daltons for the heavy subunit were estimated by sds-polyacrylamide gel electrophoresis, and the molecu ... | 1978 | 670155 |
| identification of achromobacter species by cellular fatty acids and by production of keto acids. | the cellular fatty acid composition and metabolic products of 12 reference strains of achromobacter sp. and a. xylosoxidans were determined by gas-liquid chromatography (glc). results showed that the two achromobacter groups are strikingly different and can be readily distinguished on the basis of cellular fatty acids and the short-chain acids produced by achromobacter sp. the major cellular fatty acids of achromobacter sp. were octadecenoic (18:1) and a 19-carbon cyclopropanoic (19:0 delta) aci ... | 1978 | 670387 |
| polyonchobothrium scleropagis n. sp. (cestoda: pseudophyllidea) from the australian osteoglossid fish scleropages leichardti günther. | polyonchobothrium scleropagis (cestoda: pseudophyllidea) is described as a new species from the australian osteoglossid fish sclerophages leichardti günther. | 1978 | 670673 |
| phaneropsolus aspinosus sp. n. (lecithodendriidae: phaneropsolinae) from the leaf monkey macaca fascicularia (raffles). | | 1978 | 670674 |
| a bacterial disease of the darwin's frog (rhinoderma darwini). | ulceration and necrosis of the rostrum in darwin's frogs was investigated microbiologically and histopathologically. the condition was attributed to infection with aeromonas liquefaciens and, possibly, an acinetobacter sp. | 1978 | 672182 |
| [lice fauna (anoplura) of small mammals from the charskaya hollow]. | 5 species of lice, hoplopleura acanthopus burm., h. longula neum., hoplopleura sp., polyplax hannswrangeli eich., polyplax sp., were recorded from 15 species of small mammals of the charskaya hollow, kalarsky region, chita district. h. acanthopus is most abundant and occurs on almost all species of small mammals. | 1978 | 673453 |
| immunity to lancefield's group e streptococcus: passive protection of swine. | healthy swine from one source were randomly allotted to 3 groups of 3 pigs each. troup i and ii pigs were parenterally dosed with serum obtained from swine in the convalescent stage of streptococcic lymphadenitis of swine. group iii pigs were contact controls. the swine of all groups were orally exposed to lancefield's group e streptococcus sp. during the next 3 weeks, the controls evidenced little resistance to the development of streptococcic lymphadenitis of swine, whereas the principals evid ... | 1978 | 677537 |
| [isolation of a strain of mokola virus in cameroon (author's transl)]. | a strain of mokola virus has been isolated in cameroon from a shrew (crocidura sp.). in nigeria, where the virus was isolated for the first time, two human cases with one death were reported. the possibility of transmission of this virus by the bite of an arthropod is discussed. | 1978 | 677617 |
| [on two filariae from ungulates, in malaysia (author's transl]. | redescription of the female of setaria thomasi sandosham, 1954, parasite of sus scrofa jubatus; description of the female of papillosetaria malayi n.sp. from tragulus javanicus. the study of the buccal region of papillosteria leads the authors to consider this genus as an ancestral form of setaria. | 1978 | 677714 |
| eimeria gundii n. sp. (protozoa: eimeriidae) from tunisian gundi (ctenodactylus gundi). | | 1978 | 677725 |
| [formation of the anthracycline antibiotics, beromycin and nogalamycin, by a new actinomycete species, streptomyces glomeratus sp. nov]. | culture 3980 was isolated from a soil sample and described as a new species, streptomyces glomeratus sp. nov. it was found that the culture produced simultaneously 2 close anthracycline antibiotics, i. e. nogalamycin and beromycin, which were synthesized mainly in the mycelium. s. glomeratus differed from the nogalamycin and beromycin-producing organisms described earlier. | 1978 | 677831 |
| pharyngeal colonization by gram-negative bacilli in aspiration-prone persons. | we compared the prevalence of gram-negative bacilli in the pharyngeal flora of two groups of patients with a known predilection for gram-negative bacillary pneumonia (chronic alcoholics and diabetics), two other groups of aspiration-prone persons with no known predilection for gram-negative bacillary pneumonia (epileptics and narcotic addicts), and normal control subjects. quantitative cultures of saline gargles showed pharyngeal gram-negative bacilli to be significantly (p less than .05) more p ... | 1978 | 677978 |
| utilization and cooxidation of chlorinated phenols by pseudomonas sp. b 13. | pseudomonas sp. b13 was grown in continuous culture on 4-chlorophenol as the only carbon source. maximum growth rate of 0.4 h(-1) was observed at a substrate concentration of greater than 0.01 mm and less than 0.15 mm. in addition to the enzymes of phenol catabolism, high specific 1,2-dioxygenase activities with chlorocatechols as substrates were found. the isomeric monochlorinated phenols were also totally degraded by 4-chlorophenol grown cells. (+)-2,5-dihydro-4-methyl- and (+)-2,5-dihydro-2-m ... | 1978 | 678009 |
| some biological and serological properties of large and small plaque variants of getah virus. | two plaque types of getah virus were isolated on bhk-21 cells from an emulsion of suckling mouse brain infected with strain amm-2021 and were designated as large plaque (lp) and small plaque (sp) strains. some of the properties of lp and sp strains were studied with the following results. the difference in plaque size of the lp and sp strains was quite distinct on bhk-21 cells and there was little difference in size at the 3rd--8th serial passage level in suckling mouse brain. the lp strain sho ... | 1978 | 678119 |
| influence of high luminal po2 on the anaerobic bacteria of the rat colon. | the influence of high luminal po2 on colonic anaerobes was investigated by chronically perfusing the colon of unrestrained rats with o2 or n2. a luminal po2 of approximately 700 mm hg did not significantly influence the fecal concentration of total anaerobes recovered on rabbit blood agar or of bifidobacterium sp. and bacteroides sp. recovered on selective media. however, the o2 infusion reduced the rat's excretion of ch4 (a metabolic product of anaerobic bacteria) to about 5% of the control val ... | 1978 | 680497 |
| streptoalloteichus, a new genus of the family actinoplanaceae. | a new genus streptoalloteichus is proposed in the family actinoplanaceae to distinguish species of actinomycetes which form short or long spore-chains on aerial mycelium, bears oval sporangia with motile spores and has a characteristic cell-wall composition of strain c677-91 type. strain c677-91 (atcc 31217, ferm-p no. 4070) was named streptoalloteichus hindustanus gen. nov. and sp. nov. the actinomycete strain c677-91 produces spore-chain clusters and sclerotia in the aerial mycelium which are ... | 1978 | 681231 |
| aurantinin, a new antibiotic of bacterial origin. | a new polyene class antibiotic, aurantinin (km-214), was isolated from the fermentation broth of bacillus aurantinus masuma and omura sp. nov. the substance is a conjugated triene with a molecular weight of 618 and molecular formula c35h54o9, and melts at 139 approximately 140 degrees c. the antibiotic is active in vitro against gram-positive bacteria, but not against yeast and fungi. | 1978 | 681234 |
| schistosoma mekongi sp. n. from man and animals, compared with four geographic strains of schistosoma japonicum. | schistosoma mekongi sp. n. is described from man and animals in cambodia. it is compared to 4 geographic strains of schistosoma japonicum. it differs from s. japonicum in the size of embryonated eggs, in the length of the prepatent peroid in the mammalian host, and in its utilization of a different snail host. the relative usefulness of conventional morphologic criteria in the differentiation of asian schistosomes is discussed. | 1978 | 682060 |
| corollostrongylus hypsiprymnodontis gen. et sp. n. (nematoda: strongylidae) from the rat-kangaroo, hypsiprymnodon moschatus (marsupialia). | corollostrongylus hypsiprymnodontis (nematoda: strongylidae) is described from the intestine of the musk rat-kangaroo, hypsiprymnodon moschatus ramsay 1876, from atherton, queensland, australia. the new genus is distinguished from other genera of the strongylidae by the dorsal deviation of the head, the oval mouth opening, and the dorsal ray which given off 2 small lateral branches before dividing into 2 long parallel rays. | 1978 | 682068 |
| [pulmonary disease caused by filaroides sp. in dogs (author's transl)]. | | 1978 | 684736 |
| experimental acanthamoeba infections in mice pretreated with methylprednisolone or tetracycline. | human infections due to free-living amebas of the genus acathamoeba have been reported sporadically, occasionally in individuals with underlying diseases. to determine if such infections may be considered opportunistic, groups of laboratory mice were pretreated with either methylprednisolone or tetracycline and inoculated intranasally with 1.075 times 10(4) acanthamoeba castellanii isolated from a natural fresh water well. results were compared with controls receiving either drug or amebas alone ... | 1978 | 686155 |
| effect of substance p on mechanical and myoelectrical activities of stomach and small intestines in conscious dog. | the effect of substance p (sp) on the intestine in situ of the dog was investigated. five female dogs were used. at the same time, mechanographic recordings, using balloon kymography, were taken, while the myoelectric activity was recorded by means of electrography. differences in sp action on the mechanogram and electromyogram of the stomach and the small intestines were reflected in the following phenomena: (a) sp in the doses used was less active on the ileum than on the stomach; (b) sp incre ... | 1978 | 686915 |
| isolation and characterization of isocitrate lyase from a thermophilic bacillus sp. | isocitrate lyase was isolated in homogeneous state from a thermophilic bacillus. the enzyme has a mol.wt. of 180000 and a pi of 4.5 and contains threonine as the n-terminal residue. it resembles in size the cognate enzyme from the mesophilic bacterium pseudomonas indigofera, but is smaller than the enzyme from the eukaryotic fungus neurospora crassa. all three lyases are tetramers and similar in amino acid composition, but the thermophile enzyme is distinctive from its mesophilic coutnerparts in ... | 1978 | 687365 |
| chemical structure and biodegradability of halogenate aromatic compounds. substituent effects on 1,2-dioxygenation of benzoic acid. | dioxygenation of substituted benzoic acids by whole cells of 3-chlorobenzoate-utilizing pseudomonas sp. b 13, benzoate-induced cells of alcaligenes eutrophus b 9 and toluate-grown cells of pseudomonas putida mt-2 was examined. electron-attracting substituents like halogen decreased the reaction rates of benzoate 1,2-dioxygenation. dioxygenation of substituted benzoic acids by p. putida mt-2 was mostly undisturbed by steric effects of the substituents. good correlation resulted between the log vr ... | 1978 | 687664 |
| chemical structure and biodegradability of halogenated aromatic compounds. substituent effects on dehydrogenation of 3,5-cyclohexadiene-1,2-diol-1-carboxylic acid. | the dehydrogenation of substituted 3,5-cyclohexadiene-1,2-diol-1-carboxylic acids by dihydrodihydroxybenzoic acid dehydrogenases from benzoate grown cells of alcaligenes eutrophus and pseudomonas sp. b 13 and 3-chlorobenzoate grown cells of the latter organism was examined. no significant differences (km and vrel values) were detected for the enzymes from both organisms. the same dihydrodihydroxybenzoic acid dehydrogenase is formed in pseudomonas sp. b13 during growth on benzoate as well as on 3 ... | 1978 | 687665 |
| growth characteristics of three bacterial isolates from an arctic soil. | three bacterial isolates, a pseudomonas sp., a bacillus sp., and an arthrobacter sp., commonly isolated from a hummocky sedge-moss meadow at devon island, n.w.t., canada, were selected for further taxonomic characterization and for a study of the effects of temperature and limiting carbon source on growth. pseudomonas m216 resembled p. putida and bacillus m153, b. carotarum. arthrobacter m51 had growth-factor requirements which were more complex than those of any named species of that genus. the ... | 1978 | 688099 |
| cobra neurotoxin inhibiting activity found in the extract of curcuma sp. (zingiberaceae). | | 1978 | 690543 |
| vitamin b6 biosynthesis and nucleoside effect in the resting cell system of flavobacterium sp. 238-7. | as one of the attempts to find clues on precursors or intermediates of the vitamin b6 biosynthetic pathway, the resting cell system of flavobacterium sp. 238-7, a bacterium producing a high amount of the vitamin, was employed. among various compounds tested as an additive to the reaction mixture, l-glutamate and nucleoside derivatives increased the formation of vitamin b6, respectively. the possible mechanism of the participation of these compounds in vitamin b6 biosynthesis is discussed. the id ... | 1978 | 690725 |
| mycobacteriosis in mountain whitefish (prosopium williamsoni) from the yakima river, washington. | mycobacteriosis was found in mountain whitefish (prosopium williamsoni) taken from the yakima river near richland, washington in 1975 and 1976. the disease appeared to affect about 8% of the population sampled. gross lesions were present in most visceral organs, but were most common in the kidney, liver and pyloric caeca. microscopically, the lesions consisted of large numbers of macrophages containing numerous intracellular bacilli. an organism was isolated and has been tentatively classified a ... | 1978 | 691127 |
| [sensitivity of marine bacteria to several disinfectants used in the fish processing industry. i. homologous and heterologous resistance of pseudomonas and moraxella ssp]. | it was shown that ability of developing resistance to qac by moraxella ssp. is limited, while marine strains of pseudomonas sp. are able to develop both homological and heterological resistance to sterinol and laurosept. five months storage in medium without qac caused partial loss of resistance of strains which previously gained resistance to this compound. none of the tested marine bacteria strains was able to get resistance against chloramina t. strains with developed resistance to laurosept ... | 1978 | 692644 |
| mycobacterium valentiale sp. nov. a new species of rapidly growing mycobacteria. | five strains of rapidly growing scotochromogenic mycobacteria have been isolated from soil and sputum. this study comprises 101 biological, biochemical and morphological characteristics, as well as the behaviour against the common antituberculous drugs at several concentrations. the organisms are considered to belong to a new species of the genus mycobacterium bacterium and are named mycobacterium valentiae sp. nov. they have been deposited in the american type culture collection, rockville, md. ... | 1978 | 696434 |
| [description of p. cyclopsi n. sp. a parasite of the microchiropteran bat hipposideros cyclops in gabon (author's transl)]. | p. cyclopsi sp. nov. is characterized by the small size of the asexual stages and by gametocytes belonging to the type "malariae". it is related to p. anomaluri and the hosts of both species share the same habitat: hollow trees of the tropical forest. by the ancientness of its vertebrate host and its relationship with the "malariae" group of haemosporidia p. cyclopsi is interpreted as a primitive species. | 1978 | 697287 |
| [neoparasitylenchus megabothridis n. sp. (tylenchida: allantonematidae) parasite of megabothris tubidus (siphonaptera: ceratophyllidae); observations on fleas tylenchides in the s.w. of europa (author's transl)]. | a number of nematodes (tylenchida, allantonematidae) were observed in 11 species of siphonaptera from the south-west of europe. the fleas belong of 4 differents families (pulicidae, vermipsyllidae,hystrichopsyllidae, ceratophyllidae). neoparasitylenchus megabothridis n. sp., parasite of the flea megabothris turbidus (rothschild, 1909), is described and the life cycle given. it shows little pathogenicity to tis host. psyllotylenchus sp. parasite of nosopsyllus fasciatus (bosc, 1801), appears to b ... | 1978 | 697290 |
| isolation and characterization of infectious pancreatic necrosis virus from pike (esox lucius). | a nonenveloped icosahedral virus measuring 60 (+/-5)nm in diameter has been isolated from pike fry (esox lucius). the isolate is stable to heat, lipid solvent and acid. iododeoxyuridine has no effect on its replication. serologically, the virus related to the major european strains of infectious pancreatic necrosis virus (ipn) sp and ab. the isolate is neutralized by normal trout serum and is not pathogenic for trout fry or for young pike. a line of chse-214 cells persistently infected with the ... | 1978 | 697575 |
| chemical structure and biodegradability of halogenated aromatic compounds. two catechol 1,2-dioxygenases from a 3-chlorobenzoate-grown pseudomonad. | 1. two catechol 1,2-dioxygenases, pyrocatechase i and pyrocatechase ii, were found in 3-chlorobenzoate-grown cells of pseudomonas sp. b 13. the latter enzyme showed high relative activities with 3- and 4-chlorocatechol compared with catechol. 2. in benzoate-grown cells, only pyrocatechase i was induced. it was purified 29-fold with a final specific activity of 20 mumol of catechol oxygenated/min per mg of protein and an overall yield of 22%. because of the instability of pyrocatechase ii on chro ... | 1978 | 697765 |
| chemical structure and biodegradability of halogenated aromatic compounds. substituent effects on 1,2-dioxygenation of catechol. | 1. the influence of halogen substituents on the 1,2-dioxygenation of catechols was investigated. the results obtained with the two isoenzymes pyrocatechase i and pyrocatechase ii from the haloarene-utilizing pseudomonas sp. b 13 and the pyrocatechase from benzoate-induced cells of alcaligenes eutrophus b.9 were compared. 2. substituents on catechol were found to interfere with o2 binding by the two isoenzymes from pseudomonas sp. b 13, whereas the km value for catechol kept constant at different ... | 1978 | 697766 |
| [quaternary structure of histidine decarboxylase according to small-angle x-ray diffraction and electron microscopic findings]. | the data on small angle x-ray scattering with histidine decarboxilase (hdc) from micrococcus sp. n. were analysed and a line of succesively improving approximations of the molecule shape was found: by oblate ellipsoid a:b:c = 1:10.63, by continuous cylinder and hollow cylinder with h = 50 a, 2r = 76 a, 2r = 8a. biochemical data and electron micrographs of hdc obtained made possible to distinguish subunits and thus to increase resolution of the model. the model of the enzyme molecule consisting o ... | 1978 | 698248 |
| studies on acylase activity and micro-organisms. xxvi. purification from aaa 6029 (pseudomonase sp). | | 1978 | 699212 |
| studies on acylase activity and micro-organisms. xxvii. purification and properties of phenylacetyl dl-acylase (n-phenylacetyl-dl-amino-acid amidohydrolase) from aaa 6020 (pseudomonas sp). | | 1978 | 699213 |
| [skin granulomata caused by a new microorganism (mycobacterium haemophilum sp. nov.)]. | | 1978 | 700472 |
| a soil flavobacterium sp. that degrades sulphanilamide and asulam. | | 1978 | 701200 |
| methylamine dehydrogenases of pseudomonas sp. j and pseudomonas am1. study on subunit structure by dimethyl suberimidate. | methylamine dehydrogenase (mw: 105,000) of pseudomonas sp. j was treated with a bifunctional cross-linking reagent, dimethyl suberimidate. cross-linked proteins having different molecular -eights of 53,000, 64,000, 80,000, 93,000, and 103,000 were found in addition to 13,000 (light subunit) and 40,000 (heavy subunit) by sds polyacrylamide gel electrophoresis. isolated light and heavy subunits were separately treated with the reagent. the product having a molecular weight of 80,000 was found to b ... | 1978 | 701235 |
| [new species of meloidodera (nematoda, heteroderidae) from the maritime territory]. | a new species of endoparasitic nematodes, meloidodera sikhotealiniensis, is described. the species was found on the roots of betula mandshurica (rgl.) nakai and spiraea sp. in the woods of the primorye territory. m. sikhotealiniensis differs from the close species m. floridensis by a small size of the body and the structure of the cephalic end of females, large stylet and long gubernaculum of males, thin digitate terminus of larvae. the new species differs from m. charis in an oval shape and siz ... | 1978 | 704145 |
| brief communication. generalization of [dala2]-enkephalinamide but not of substance p to the morphine cue. | rats were trained to discriminate morphine (7.5 mg/kg, ip) from saline in a two bar positively reinforced lever pressing paradigm on a fr4 schedule. morphine (ip) showed a naloxone reversible dose-related generalization to the training dose. [dala2]-methionine enkephalinamide (dae) at 1 mg/kg and substance p (sp) at 0.1 and 0.25 mg/kg showed vehicle appropriate responding after ip injection. dae (5 mg/kg) disrupted responding completely; sp (0.5 and 0.1 mg/kg) disrupted responding in 50% of the ... | 1978 | 704649 |
| cellulose digesting bacteria from human feces. | anaerobic, gram-negative, nonsporing rod-shaped bacteria that digest wet-ballmilled filter paper have been isolated in numbers of over 10(8) per gram wet weight of feces, about 0.3% of total viable bacteria, from feces of two humans. significant numbers of cellulolytic bacteria were not detected in four other humans. one of the strains is a bacteroides sp., which only slowly digests cellulose and produces succinate, acetate, and h2 in carbohydrate fermentation. | 1978 | 707358 |
| antimicrobial susceptibility of flavobacteria. | antimicrobial susceptibility patterns of 28 clinical isolates of flavobacterium sp. were determined by standard disk diffusion technique and by antimicrobial dilution in agar. rifampin, clindamycin, trimethoprim-sulfamethoxazole, cefoxitin, and vancomycin are among the antimicrobial agents which may be clinically useful to treat infections caused by flavobacteria. all 28 isolates were resistant to erythromycin with minimal inhibitory concentrations of 32 mug/ml or more. currently recommended int ... | 1978 | 708026 |
| bacteriology of human experimental gingivitis: effect of plaque and gingivitis score. | the plaque flora isolated from discrete dentogingival sites during a human gingivitis experiment was analyzed as a function of the plaque score and of the gingivitis score. when the gingivitis score was plotted as a function of the plaque score, a nonbleeding gingivitis was associated with a proportional increase in the actinomyces sp. at the expense of the streptococcus sp. in particular, the percentage of actinomyces israelii increased significantly, while the percent streptococcus sanguis dec ... | 1978 | 711337 |
| ionomycin, a new polyether antibiotic. | ionomycin, a new polyether antibiotic with a high affinity for calcium ions, is obtained in pure form from fermentation broths of streptomyces conglobatus sp. nov. trejo by solvent extraction. it is unique amongst known polyether antibiotics in that it has a uv absorption maximum at 300 nm. thereby distinguishing it from other antibiotics of its class. the ca salt has the molecular formula c41h70o9ca. ionomycin is a narrow spectrum antibiotic being active against gram-positive bacteria. | 1978 | 711623 |
| [systematic place of the act nomycetes of the albidus krassilnikov, 1970 group]. | detailed studies of the taxonomical characteristics and the complex of produced antibiotics made it possible to establish the identity of actinomyces albus var. fungatus, solovieva et rudaya, 1959 and actinomyces tumemacerans, krassilnikov et koveshnikov, 1962. both organisms produce a complex of antibiotics comprising albofungin, albonursin, and a polyene antibiotic belonging to the group of tetraenes. the cultures do not belong to the group of verticillate actinomycetes as was believed earlier ... | 1978 | 713876 |
| [susceptibility of biomphalaria glabrata, albino variant, from belo horizonte, mg, to infestation by schistosoma mansoni, a parasite under natural conditions, of wild rodents of the vale do rio paraiba do sul, sp (brazil)]. | | 1978 | 715359 |
| [parasitological behavior of human and wild strains of schistosoma mansoni, in the vale do rio paraiba do sul, sp (brazil)]. | | 1978 | 715360 |
| evoked potential correlates of genetic progressive hearing loss. age-related changes from the ear to the inferior colliculus of c57bl/6 and cba/j mice. | volume-conducted auditory evoked potentials were simultaneously measured from the level of the ear to the inferior colliculus of mice. the c57bl/6 mouse, which displays genetic sensorineural progressive hearing loss, was compared with the cba/j mouse. at 50 days post partum, amplitudes of the summating potential (sp) and cochlear microphonic (cm) were lower in the c57bl/6 genotype, and they decreased progressively with age. fifty days later, changes were seen in responses from the auditory nerve ... | 1978 | 716859 |
| microbiology of deep tissue in diabetic gangrene. | information on the incidence and nature of the causative organisms in the infected tissues of patients with diabetic gangrene is scanty. studies in which material for culture was obtained from the presenting lesion reveal multiple organisms in host isolates. no data are available regarding the bacterial flora of the deep infected tissue itself, uncontaminated by surface organisms. in this investigation 58 specimens from 52 patients were obtained utilizing aerobic and anaerobic culture techniques ... | 1978 | 720182 |
| angiocardiographic right ventricular volume determination. accuracy, as determined from human casts, and clinical application. | on the basis of 22 life-like human casts (the method is described in the first paper of this series) the influence of (a) spatial orientation, (b) cardiac-phase and (c) biplane (bp) and single-plane (sp) methods of volume calculation on the accuracy of right ventricular (rv) angiocardiographic volume determination was quantitated. the best results are obtained, when a bp approach is utilized and when position and cardiac-phase appropriate correction factors (cf) are applied to the model volumes ... | 1978 | 720367 |
| gastrointestinal helminths in dogs from a humane shelter in indiana. | between january 1975 and august 1976, the alimentary tracts of 104 euthanatized dogs from a humane shelter in tippecanoe county, indiana, were examined to determine the prevalence of gastrointestinal helminths. the survey was restricted to dogs greater than 1 year old. their average age was estimated at approximately 2 years. parasitism was detected in 86.5% of the dogs examined. ancylostoma caninum was found most often (58.7%), followed by trichuris vulpis (51.9%), taenia sp (31.7%), toxocara c ... | 1978 | 721684 |
| tapeworms of the chaco boreal, paraguay, with two new species. | mathevotaenia paraguayae sp. n. is described from euphractus sexcinctus. it differs from m. didelphidis (rud.) in having a transverse cirrus pouch anterior to the vagina. monoecocestus mackiewiczi sp. n. was found in phyllotis sp. it differs from m. parcitesticulatus rego in having a much smaller scolex, a poral ovary, and a cirrus pouch 360 to 440 micrometers long. other species reported are taenia macrocystis, taenia omissa, spirometra mansonoides, spirometra gracilis, spirometra longicollis, ... | 1978 | 722040 |
| semisynthetic cephalosporins. synthesis and structure-activity relationships of 7-(1-pyrryl)- and 7-(1-indolyl)acetamidocephalosporin derivatives. | a series of 1-pyrrole- and 1-indoleacetamido derivatives of 3-heteroaryl-substituted cephalosporins was prepared. the most active compound in the series was 7-[[2-(1-pyrryl)acetyl]amino]-3-[[(1-methyltetrazol-5-yl)thio]-methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (6), which showed comparable potency in vitro and in vivo to that of cefazolin, and, in addition, was more potent than cefazolin against enterobacter sp. and providencia stuartii. | 1978 | 722761 |
| the intestine as source of immunoreactive substance p in plasma of the cat. | 1. substance p (sp) was measured in acid acetone extracted plasma of cats using a sensitive radioimmunoassay. the immunoreactive material was submitted to ion exchange chromatography and at least 90% of immunoreactivity co-chromatographed with synthetic sp. 2. the level of immunoreactive sp (i-sp) in extracted plasma of the cat was 69.3 +/- 9.8 fmol/ml with values ranging from 2.5 to 165 fmol/ml. evisceration of the cats caused a decrease of i-sp levels from 70.8 +/- 30.8 fmol/ml to 20.8 +/- 9.9 ... | 1978 | 723966 |
| the influence of water-logging stage upon the paddy soil mycoflora in the ukraine. | the soil fungal flora of paddy soils from the southern districts of the ukraine was investigated. from 287 soil samples 170 species were isolated. they belonged to the following genera: oomycetes 1.2%, zygomycetes 8.8%, ascomycetes 5.8%, deuteromycetes 84.2%. certain fungi were found to be dominant forms, among them mortierella alpina peyron., penicillium funiculosum thom, p. rugulosum thom, p. chrysogenum thom, acremonium strictum w. gams, acr. breve w. gams, alternaria alternata (fr.) riessler ... | 1978 | 726714 |
| radioimmunoassay of secretin in acidified plasma. | antibody was readily produced in a rabbit against synthetic porcine secretin coupled to bsa. the final dilution of the antiserum to bind 50% of 1 fmol 125i-labeled secretin was 1 : 150,000. the effective equilibrium constant (keff) according to scatchard was 3.4 x 10(11) l/mol, the average equilibrium constant (ko) according to sips 3.5 x 10(11) l/mol, and the index of heterogeneity (alpha) according to sips 1,00. no cross reactivity was found for gastrin, glucagon and insulin. 125i-labeled synt ... | 1978 | 726817 |
| trypanosoma (herpetosoma) mariae n. sp., isolated from calomys callosus rengger, 1830 (rodentia-cricetinae). | | 1978 | 727638 |
| heavy-metal and antibiotic resistance in the bacterial flora of sediments of new york bight. | the new york bight extends seaward some 80 to 100 miles (ca. 129 to 161 km) from the long island and new jersey shorelines to the edge of the continental shelf. over 14 x 10(6) m(3) of sewage sludge, dredge spoils, acid wastes, and cellar dirt are discharged into this area each year. large populations of bacillus sp. resistant to 20 mug of mercury per ml were observed in bight sediments contaminated by these wastes. resistant bacillus populations were much greater in sediments containing high co ... | 1978 | 727779 |
| uterine and lung uteroglobins in the rabbit. two similar proteins with differential hormonal regulation. | previous studies have shown that several rabbit tissues contain proteins which cross-react in the radioimmunoassay for uteroglobin, a progestin-regulated protein in rabbit uterus (torkkeli et al. (1977) mol. cell. endocrinol. 9, 101-118). in the present study, a uteroglobin-like protein was purified to an apparent homogeneity from an extra-uterine tissue, rabbit lung, by successive chromatographies on hydroxyapatite, sephadex g-75, sp-sephadex, deae-cellulose and cm-cellulose. the final preparat ... | 1978 | 728471 |