| new species of moaciria freitas 1956 (nematoda: heterakoidea) from australian reptiles. | moaciria sphenomorphi n. sp. is described from the skink sphenomorphus gracilipes, moaciria butleri n. sp. from the elapid snake pseudechis australis (both from western australia), and moaciria etnae n. sp. from the python liasis childreni from queensland. these species differ from one another and from m. alvarengai and m. icosiensis principally in the number and disposition of body and caudal papillae, and from m. freitasi in possessing caudal alae. m. butleri and m. etnae also differ from the ... | 1979 | 489941 |
| the anoplocephalid cestode parasites of the spectacled hare-wallaby lagorchestes conspicillatus gould, 1842 (marsupialia: macropodidae). | progamotaenia gynandrolinearis sp. nov. is described from the small intestine of lagorchestes conspicillatus gould, 1842 from barrow i., western australia. it is distinguished from other species by the small number of testes arranged in a single transverse row. progamotaenia lagorchestis (lewis, 1914) is redescribed. the name progamotaenia thylogale sp. nov. is proposed for a second species described previously under the name p. lagorchestis. progamotaenia zschokkei (janicki, 1905), progamotaeni ... | 1979 | 489942 |
| isolation of the fourth component (c4) of rat complement. | the fourth component of rat complement was purified to homogeneity by sequential chromatography of rat plasma in benzamidine on qae-a50, sp-c50, hydroxyapatite, and gel filtration on bio-gel a 1.5. the final material was homogeneous on sds-page analysis and had a calculated m.w. of 198,000. a monospecific antibody against rat c4 was obtained from immunized rabbits. the concentration of rat c4 in the plasma of normal 4-month-old wistar rats was 190 +/- 34 microgram/ml (mean +/- 1 s.d.). | 1979 | 489981 |
| studies on a morphologically distinct colchicine-resistance variant of entamoeba sp. | colchicine has a temperature-dependent cytotoxic effect on entamoeba sp. (laredo isolate) that is most apparent when the drug is applied during the initiation of cultures at a concentration of 7.5 mm or higher. continued transfer of cultures in medium containing progressively increasing concentrations of colchicine has resulted in a variant that grows prolifically in the presence of colchicine (7.5 mm) with a generation time comparable to that of the parent stock, comparison of a number of param ... | 1979 | 490433 |
| differential effects on learning by ventromedial vs lateral hypothalamic posttrial injection of substance p. | the effects of post-trial injection of substance p (sp) into the lateral hypothalamus (lh) and the ventromedial hypothalamus (vmh) on passive avoidance learning was studied in rats. in the vmh, 50 ng and 500 ng sp influenced neither learning of a step-down avoidance nor of an alcove avoidance response. in contrast to these findings, 500 ng sp injected into the lh significantly enhanced retention of the alcove avoidance task. similarly, in the step-down avoidance experiment, learning was strongly ... | 1979 | 493293 |
| relative contribution of central and peripheral chemoreceptors to the ventilatory response to co2 during hyperoxia. | using the technique of artificial ponto-medullary perfusion, the steady state ventilation during hyperoxia was measured in 15 anaesthetized cats as a function of the central paco2 (paco2) and peripheral paco2 (papco2). to a first approximation the ventilatory response was linearly related to both the central and peripheral arterial carbon dioxide pressures, viz. ve=sc . pacco2 + sp . papco2 - k where sc and sp represent the overall central and peripheral sensitivity to carbon dioxide. the mean r ... | 1979 | 493756 |
| recovery of anaerobic bacteria from pediatric patients. a one-year experience. | during 1975, 115 speciments from the soft tissues, body fluids, and purulent sites in 105 pediatric ward and nursery patients were submitted to the clinical laboratory for anaerobic study, and 75% of the cultures were positive. in most instance specimens were collected in anaerobic transport tubes containing peptone yeast extract and glucose. in the laboratory, samples were processed by the anaerobic holding jar method. nineteen different anaerobic organisms were isolated; the average number of ... | 1979 | 495592 |
| preparation of highly purified 3 alpha- and 3 beta-hydroxysteroid dehydrogenases from pseudomonas sp. | | 1979 | 495965 |
| some intestinal parasites of arctic fox, banks island, n. w. t. | small intestinal parasitology of 50 trapped arctic fox taken on banks island, the northwest territories, showed a prevalence of taenia crassiceps (78%), toxascaris leonina (60%), echinococcus multilocularis (2%) and coccidia (2%). attention is drawn to the absence of toxocara sp. and of uncinaria sp. | 1979 | 497890 |
| oxidation of synephrine by type a and type b monoamine oxidase. | synephrine (sp) was found to be a substrate for monoamine oxidase (mao) in rat brain mitochondria, showing the km and vmax values of 250 microm and 32.6 nmoles/mg of protein/30 min respectively. the inhibition studies showed that the sp oxidation was carried out by both type a and type b mao and a major part of the activity was due to type a mao. | 1979 | 499398 |
| [the vasopressor role of adh in the maintenance of blood pressure in experimentally hypertensive rats (author's transl)]. | in order to investigate the vasopressor role of adh in the regulation of blood pressure, passive immunization experiments with an antibody to avp were carried out in experimentally hypertensive rats. in hypertensive rats treated with deoxycorticosterone acetate (doca), spontaneously hypertensive rats (shr) and spontaneously hypertensive stroke-prone rats (shr-sp), the intravenous injection of a specific vasopressin antibody resulted in a transient fall of blood pressure of 11 approximately 25mmh ... | 1979 | 499616 |
| separation of the gonadotropic activity of crude choriogonadotropin from the inhibitory effect on lymphocyte transformation. | the effect of choriogonadotropin of different purities on the transformation of peripheral human lymphocytes was studied. various crude hormone batches inhibited lymphocyte transformation in a dose-dependent manner, both in the mixed lymphocyte reaction and in the phytohemagglutinin-induced stimulation. the inhibitory activity, however, was found not to be correlated with the gonadotropic activity of the crude hormone batches (2660-4300 iu/mg). choriogonadotropin (13 000 iu/mg), which was purifi ... | 1979 | 500013 |
| converting bacteriophage for sporulation and crystal formation in bacillus thuringiensis. | bacteriophage tp-13, a converting phage for sporulation and crystal formation in bacillus thuringiensis, was isolated from soil. the phage converted anoligosporogenic (sporulation frequency, 10(-8), acrystalliferous mutant to spore positive, crystal positive at a high frequency. each plaque formed by tp-13 in a lawn of sensitive cells contained spores and crystals. these spores were heat stable, and each one was capable of producing a plaque from which tp-13 could be reisolated. conversion of ce ... | 1979 | 500567 |
| molecular properties of the factor v-activating enzyme from russell's viper venom. | the protease from russell's viper venom that activates factor v was purified by gel filtration on sephadex g-150 and ion exchange column chromatography on sulfopropyl (sp)-sephadex c-50. the purified enzyme is a glycoprotein containing 6% carbohydrate. it migrated as a single band in sodium dodecyl sulfate-polyacrylamide gel electrophoresis with an apparent molecular weight of 29,000. a minimum molecular weight of 27,200 was determined by sedimentation equilibrium in the presence of 6 m guanidin ... | 1979 | 500708 |
| isolation and characterization of heparin from human lung. | heparin as measured by azure a metachromasia and anticoagulant activity has been extracted with 1 m nacl from (35)s-labeled human lung fragments or dispersed human lung cells enriched for mast cells. the (35)s-labeled metachromatic material in the 3 m nacl eluate from dowex-1 chromatography of the extract from lung fragments exhibited an average mol wt of 20,000 by sepharose 4b gel filtration. the (35)s-labeled metachromatic material with the charge characteristics of commercial porcine heparin ... | 1979 | 500822 |
| determinants of spontaneous recovery and persistance in mdck cells infected with lymphocytic choriomeningitis virus. | mdck cells that normally would have been killed by standard lymphocytic choriomeningitis (lcm) virus were saved either by pre- or co-infection with defective interfering (di) virus. the ability of these spared cells to produce virus-specific antigen (as well as infectious virus) and resist being killed by standard virus challenge was followed for at least 35 days. during this period both types of cultures displayed unique cycling patterns for the above characteristics. the most striking differen ... | 1979 | 501333 |
| gastro-intestinal helminths in white-tailed deer (odocoileus virginianus) of illinois. | two deer populations, one in northern illinois the other in southern illinois, were examined by necropsy (n = 44 and 40 respectively) for helminth parasites of the gastro-intestinal tract and abdominal cavity. both herds were parasitized by apteragia odocoilei, haemonchus contortus, gongylonema pulchrum, setaria yehi, trichuris ovis, and moniezia benedeni. nematodirus sp. was found only in deer of northern illinois. ostertagia mossi, capillaria sp., cooperia sp., and oesophagostomum sp. were fou ... | 1979 | 501845 |
| chemical composition of streptococcus mutans cell walls and their susceptibility to flavobacterium l-11 enzyme. | the susceptibility to a cell wall lytic l-11 enzyme from flavobacterium sp. and the quantitative and/or qualitative composition of the cell walls of some strains of cariogenic streptococcus mutans and a non-cariogenic strain of streptococcus mitis were determined. the purified cell walls of s. mutans strains hs-1 (serotype a), bht (b), nctc10449 (c), c67-1 (c), c67-25 (c), omz 176 (d), mt703 (e), mt557 (f), omz65 (g), and aht (g), and s. mitis cht contained glutamic acid, alanine, and lysine as ... | 1979 | 502897 |
| [blastobacter viscosus, a new species of methanol-utilizing autotrophic bacteria]. | a strain of budding bacteria capable of autotrophic growth in the atmosphere of h2+o2+co2 or in a medium with methanol was isolated from activated sludge. the cells are gram negative nonmotile yellow pleomorphic rods which do not form rosettes. the bacterium is a strict aerobe. it utilizes a wide range of organic compounds (alcohols, sugars and organic acids) as the sources of carbon and energy. the g+c content of dna is 66.3 +/- 0.9 mol %. based on the study of morphological, cultural, and phys ... | 1979 | 502906 |
| conditioned-reflex learning of normal juvenile and adult rats exposed to action of substance p and of an sp analogue. | the actions of both substance p, a potential neurotransmitter or modulator and of a shortened analogue on learning and memorizing processes are reported in this paper. sixty male rats, aged 22, 14, and 10 weeks, were exposed to substance p (arg-pro-gln-gln-phe-gly-leu-metnh2) and to a shortened hexapeptide analogue (lys-phe-ile-gly-leu-metnh2), doses being 250 microgram/kg and 500 microgram/kg, to test their action upon learning and memorizing processes, such as acquisition, retention, and ecpho ... | 1979 | 504332 |
| degradation of lignocellulosic material and humus formation by fungi. | cellulase activity and degradation of cellulose and lignin in wheat straw and formation of humus during degradation by aspergillus sp., chaetomium globosum, fusarium solani, paecilomyces varioti, penicillium chrysogenum and trichoderma viride qm9414 were studied. c. globosum, f. solani, p. varioti and p. chrysogenum produced little or no cellulase when grown on cellulose powder. however, all produced cellulase (filter paper degrading activity) when grown on wheat straw. all the cultures degraded ... | 1979 | 507620 |
| in vitro activity of ly127935. | the activity of ly127935, a beta-lactam antibiotic of novel structure, was studied in vitro against facultative gram-negative bacilli, staphylococcus aureus, and bacteroides fragilis. the strains were recent clinical isolates, many of which were relatively resistant to other antibiotics. ly127935 exhibited striking activity against escherichia coli, klebsiella pneumoniae, enterobacter sp., proteus sp., serratia marcescens, and b. fragilis with median minimum inhibitory concentrations of less tha ... | 1979 | 507785 |
| in vitro activities of some synthetic substance p analogs. | substance p (sp) and several analogs and fragments have been synthesized and evaluated on non-stimulated and stimulated guinea-pig ileum. in the former test system the potency order was as follows: sp(4--11) greater than sp = [tyr7]-sp = [eth11]-sp = [nle11]-sp greater than [dala9]-sp greater than sp(7--1) = [tyr7]-sp(7--11) greater than [eth11]-sp(7--11) greater than [dala9]-sp(7--11) greater than [nle11]-sp(7--11) greater than sp(1--7). the spasmogenic activity of sp and analogs was preserved ... | 1979 | 508003 |
| isoepoxydon, a new metabolite of the patulin pathway in penicillium urticae. | a patulin-negative mutant (j1) of penicillium urticae (n.r.r.l. 2159a) was known to accumulate about 100mg per litre quantities of the 5,6-epoxygentisyl quinone, (-)-phyllostine and another metabolite (uiii). both were derived from acetate and hence were polyketides. purified uiii (m.p. 53 degrees c, [alpha](32) (d)+206 degrees , lambda(methanol) (max.) 240nm; epsilon 3806 litre.mol(-1).cm(-1)) was characterized as a partially reduced derivative of (-)-phyllostine and was found to be a diastereo ... | 1979 | 508294 |
| ascaris sp.: water loss during desiccation of embryonating eggs. | | 1979 | 510444 |
| trichinella spiralis: comparison of stages in host intestine with those of an arctic trichinella sp. | | 1979 | 510446 |
| sperm penetration in vitro: correlations between parameters of sperm quality and the penetration capactiy. | a nonlinear regression analysis was used in order to fit a logistic model to 200 runs of human ejaculated spermatozoa penetrating cervical mucus of good quality. the data revealed excellent correlation between the number of sperm penetrating (sigma penetration, sp) and the motility (r = 0.776) and vitality (r = 0.534) of the spermatozoa. the percentage of abnormal spermatozoa found in the ejaculate was negatively correlated (r = -0.649), while sperm concentration showed a poor correlation with s ... | 1979 | 510568 |
| a psychrophilic strain actinoplanes sp. 220. | the strain designated actinoplanes sp. 220 differed in its characteristics from other strains of the genus actinoplanes listed in bergey's manual (1974). the strain belongs to psychrophilic culture growing within the range of 0-30 degrees c. the optimal temperature for growth on yeast--malt agar is 10-23 degrees c. cultures transferred at 23 and 28 degrees c differed in morphological and physiological properties, enzyme activity and pigmentation in standard media. submerged culture transferred a ... | 1979 | 511031 |
| the effects of splanchnic nerve stimulation on the plasma levels of serotonin and substance p in the portal vein of the cat. | the blood levels of serotonin (5-ht) and substance p (sp) in the portal vein were studied after splanchnic nerve stimulation in the cat. the portal levels of both substances were studied before, during and after splanchnic nerve stimulation. there was a twofold increase in 5-ht during stimulation whilst the sp concentration remained unchanged. these results suggest that the nervous control of the amine release into the portal stream and the mechanism that regulates the release of the polypeptide ... | 1979 | 512650 |
| feather mites of the greater sandhill crane. | new taxa are described from grus canadensis tabida: brephosceles petersoni sp. n. (alloptidae); pseudogabucinia reticulata sp. n. (kramerellidae); geranolichus canadensis sp. n., and gruolichus wodashae, gen. et sp. n. (pterolichidae). observations on resource partitioning by these mites are given. | 1979 | 512759 |
| behavioural activation induced in the rat by substance p infusion into ventral tegmental area: implication of dopaminergic a10 neurones. | the functional role of the putative transmitter substance p (sp) was studied using a behavioural approach. sp infusion into the ventral tegmental area in awake rats elicited an increase in locomotor activity which could be blocked by either infusion of a neuroleptic into the nucleus accumbens septi (nas) or by 6-hydroxydopamine (6-ohda) lesions of the ascending dopaminergic a10 neurones. our results suggest that sp induces its behavioural effects through activation of dopaminergic a10 neurones, ... | 1979 | 514544 |
| [comparative clinical, bacteriological and pathohistological studies of the sex organs of infertile cows]. | investigations were performed with materials from 39 cows divided into two groups: i -- internal sexual organs of 29 cows slaughtered because of infertility; and ii -- biopsy material from 10 cows that showed symptomies sterility. the same material was studied microbiologically and histopathologically by routine methods. the material was taken from the cervix, the uterus, and the horns. bacteriologically, the presence was established of str. uberis. e. coli, str. dysgalactiae, staph. et albus et ... | 1979 | 516444 |
| ontogeny and distribution of certain oendocrine cells in the human fetal large intestine. histochemical and immunocytochemical studies. | in 9 fetuses, 9 to 24 weeks-old, the occurrence and relative distribution of argentaffin cells, as well as of cells immunoreactive to somatostatin (srif), glucagon-like polypeptide (gli), pancreatic polypeptide (pp) and substance p (sp) were studied in five segments of the colon (appendix, cecum, ascending colon, descending colon, and rectosigmoid). for each colonic segment, data concerned with the occurrence of endocrine cells were expressed either as mean absolute numbers of specific cells per ... | 1979 | 519732 |
| an imidazole derivative (econazole) as an antifungal agent in cell culture systems. | econazole, an imidazole derivative, was tested as an antifungal agent in different cell culture systems. in comparison with fungizone, econazole has the following advantageous properties: higher stability, higher solubility, better antifungal activity against contaminants of cell cultures and a wider range between minimal inhibitory to cytotoxic concentration with aspergillus fumigatus, candida albicans and penicillium sp., activity against gram-positive bacteria and lower price. econazole exert ... | 1979 | 521035 |
| transplacental transmission of protostrongylus sp. in california bighorn sheep (ovis canadensis californiana) in oregon. | transplacental transmission of protostrongylus sp. was documented for the first time in california bighorn sheep (ovis canadensis californiana) by recovery of third stage larvae from two fetuses. | 1979 | 522227 |
| pathological and microbiological studies on calf pneumonia occurring in mass rearing facilities. | pathological and microbiological studies were conducted on lesions in the lungs of 194 calves from mass rearing facilities. macroscopically, the lesions were classified into six forms: nonlesion, atelectasis, mild pneumonia, moderate pneumonia, advanced pneumonia, and advanced pneumonia accompanied with abscess. histopathological examination revealed bronchopneumonia in most of the calves. lesions more advanced than moderate pneumonia were complicated with desquamation, severe exudation, and nec ... | 1979 | 522891 |
| in vitro sensitivities to antimicrobial drugs of ureaplasmas isolated from the bovine respiratory tract, genital tract and eye. | the sensitivity to 18 antimicrobial drugs was examined for 66 strains of ureaplasma sp isolated from respiratory tracts of calves suffering from enzootic pneumonia, urinary tracts of bulls and eyes of cows suffering from infectious bovine kerato-conjunctivitis. furamizole, tiamulin fumarate, erythromycin lactobionate, malidomycin c, doxycycline hydrochloride, kitasamycin tartrate, tylosin tartrate, t-2636c, tetracycline hydrochloride, oxytetracycline hydrochloride, chlortetracycline hydrochlorid ... | 1979 | 523809 |
| babesia ernestoi sp. n., in didelphis marsupialis l., 1758, and d. albiventris lund, 1841, in brazil. | | 1979 | 525096 |
| visceral caseous lymphadenitis in thin ewe syndrome: isolation of corynebacterium, staphylococcus, and moraxella spp from internal abscesses in emaciated ewes. | the relationship between the visceral form of caseous lymphadenitis and a chronic debilitating condition of mature sheep designated as the thin ewe syndrome was investigated. internal abscesses were found during necropsy in 81% of animals with thin ewe syndrome and corynebacterium pseudotuberculosis (c ovis) was recovered from 86% of the animals with internal abscesses. other pyogenic bacteria, including c pyogenes, c equi, staphylococcus epidermis, s aureus, and pseudomonas aeruginosa were ofte ... | 1979 | 525916 |
| thermomonospora sp. t-sa-125 and its production of a growth promoting antibiotic. | thermomonospora sp. t-sa-125 is a true thermophilic actinomycete isolated from a soil sample collected from the saudi arabian desert. it is characterized by the formation of single spores at the tips of dichotomously branched aerial mycelium and differs from thermomonospora curvata and t. viridis in certain aspects. it produces a basic water-soluble antibiotic which is active against gram-positive bacteria, moderately active against gram-negative bacteria and inactive against fungi. at high conc ... | 1979 | 527914 |
| studies on bacterial cell wall inhibitors. vi. screening method for the specific inhibitors of peptidoglycan synthesis. | a screening method was established for selecting new specific inhibitors of bacterial cell wall peptidoglycan synthesis. in the primary test, culture broths of soil isolates were selected based on relative microbial activity. a culture, to be retained, must be active against bacillus subtilis and lack activities against acholeplasma laidawii. in the secondary test, inhibitors of bacterial cell wall synthesis were identified by their ability to prevent the incorporation of meso-[3h]diaminopimelic ... | 1979 | 528376 |
| studies on bacterial cell wall inhibitors. vii. azureomycins a and b, new antibiotics produced by pseudonocardia azurea nov. sp. taxonomy of the producing organism, isolation, characterization and biological properties. | two new basic water-soluble antibiotics, azureomycins a and b, were isolated from the culture broth of an actinomycete, strain am-3696, designated as pseudonocardia azurea nov. sp. the antibiotics exhibit moderate antimicrobial activities against gram-positive bacteria including penicillin-resistant staphylococcus, mycobacterium and clostridium. they inhibit the synthesis of bacterial cell wall peptidoglycan. | 1979 | 528377 |
| studies on antibiotics bn-227 and bn-227-f, new antibiotics. i. taxonomy, isolation and characterization. | the two new antibiotics, bn-227 and bn-227-f, were isolated from the fermentation broth of pseudomonas sp. bn-227. bn-227 has a molecular formula c7h9no3, and melts at 115 degrees c. bn-227-f has a molecular formula c21h24n3o9fe, and melts at 156 degrees c. bn-227-f is a chelate compound consisting of three similar ligands (antibiotic bn-227) and ferric ion. the two antibiotics have antimicrobial activity against gram-positive and gram-negative bacteria. | 1979 | 528378 |
| gunacin, a new quinone antibiotic from ustilago sp. | in a screening program for antibiotics which were antagonized by cysteine, a strain, which was characterized as ustilago sp., was found to produce a new quinone antibiotic, gunacin. the molecular weight m+ = 348.084 determined by mass spectroscopy, corresponds to a molecular formula of c17h16o8. further spectroscopic data prove that gunacin is a new antibiotic. the antibiotic possesses a good inhibitory effect against mycoplasmas and gram-positive bacteria including multi-resistant strains. it a ... | 1979 | 528380 |
| analysis of fatty acids from human lipids by gas chromatography. | a rapid, quantitative method is described for the analysis of fatty acids from human lipids, namely serum lipids and lipids from adipose tissue biopsies. the method includes extraction of serum lipids with chloroform--methanol, hydrolysis with tetramethylammonium hydroxide, methylation with methyl iodide and n,n-dimethylformamide and gas chromatographic analysis on a supelcoport sp-2320 column. fat biopsies are analysed without extraction. optimal hydrolysis conditions have been investigated. | 1979 | 528594 |
| comparison of direct and standard antimicrobial disk susceptibility testing for bacteria isolated from blood. | to determine the reliability of early antimicrobial susceptibility testing, we compared the results of direct and standard single-disk diffusion methods for 581 positive blood cultures processed routinely by the clinical microbiology laboratory. the direct procedure differed from the standard one only in that the 0.5 mcfarland inoculum was prepared from 1 ml of turbid broth rather than five isolated colonies from a subculture plate. a major discrepancy in results was defined as a change from sus ... | 1979 | 528681 |
| studies on the parasite fauna of thailand. i two new metastrongylid nematodes, angiostrongylus siamensis sp. n. and thaistrongylus harinasutai gen. et sp. n. (metastrongyloidea; angiostrongylidae) from wild rats. | | 1979 | 529658 |
| [new genus of budding bacteria angulomicrobium tetraedrale having radially symmetrical cells]. | the growth cycle and the ultrathin structure were compared in two strains of polygonal bacteria. due to the presence of radial symmetry, the type of division, the character of metabolism and physiology in common, the polygonal bacteria are classed as a separate genus, angulomicrobium nov. gen. it would be too early to divide the genus into species. the diagnosis of the new genus and the species a. tetraedrale nov. gen. nov. sp. is presented. | 1979 | 530132 |
| catecholamine turnover changes in hypothalamus and dorsal midline area of the caudal medulla oblongata of spontaneously hypertensive rats. | the central noradrenaline (na) and adrenaline (a) turnover in 15--16-week-old stroke prone, spontaneously hypertensive (sp-sh) female rats in an advanced stage of hypertension was found to differ from that of normotensive wistar-kyoto (wky) control rats. the catecholamine (ca) levels were measured after inhibition of dopamine-beta-hydroxylase (dbh) or phenylethanolamine-n-methyltransferase (pnmt). in the hypertensive rats the dopamine (da) and na levels and the na turnover were reduced in the hy ... | 1979 | 530533 |
| liberation of protoplasts from the yeast-like form of paracoccidioides brasiliensis by enzymatic treatment. | spherical and osmotically sensitive protoplasts were released from cultures of the yeast-like form of paracoccidioides basilienisis strain ivic pb9 through the action of a mixture of crude enzyme preparations: alpha and beta-glucanases and chitinase, obtained from culture filtrates of cladosporium resinae, basidiomycete qm 806 and streptomyces sp respectively. the highest efficiency of protoplast liberation was achieved when each crude enzyme preparation was used at 1 mg/ml. | 1979 | 531719 |
| borrelia persica and b. baltazardi sp. nov.: experimental pathogenicity for some animals and comparison of the ultrastructure. | the ultrastructure of cells of borrelia persica was compared with that of cells of a new isolate of barrelia (borrelia "x"). this organism (b. "x") was isolated in a region of iran where b. persica is already known to exist. the morphology of the cells of the two strains differed in mean cell length and cell diameter. cells of b. persica were covered by a regularly structured surface layer, while those of b. "x" possessed an amorphous surface coat. furthermore, the strains differed in their expe ... | 1979 | 533068 |
| purification and characterization of rat angiotensinogen. | 1. angiotensinogen (renin substrate) was purified from plasma of nephrectomized rats by a four step procedure using ammonium sulfate fractionation, chromatography on blue sepharose cl-6b and sp-sephadex c-50, and gel filtration on sephadex g-150. 2. the final preparation had a specific concentration of 9.3 microgram angiotensin i/mg (mean of six separate runs). the best preparation so far obtained contains 14.6 microgram angiotensin i/mg protein, which represents a purity of 62%. 3. by sodium do ... | 1979 | 534650 |
| interspecific relationships of antibiotic resistance in staphylococcus sp.: isolation and comparison of plasmids determining tetracycline resistance in s. aureus and s. epidermidis. | tetracycline resistance in staphylococcus aureus and s. epidermidis was confirmed to be determined by plasmids of the same size. digestion of plasmids from each strain with restriction endonucleases ecor1, hindiii, and alui showed a high degree of similarity in their dna sequences. at least 10 cleavage sites which appear to be common to both plasmids were detected. an additional three cleavage sites appear to be unique to the s. epidermidis plasmid. further, a survey of recent clinical isolates ... | 1979 | 534963 |
| platelet counting-development of a reference method and a reference preparation. | a reference method has been defined for platelet counting by counting chamber haemocytometry, and a procedure has been developed, using platelet rich plasma (prp) and a coulter zbi counter which provides a reliable, rapid and relatively simple method for platelet counting which is closely comparable to the reference method and can thus be used both as a secondary reference method and a routine method. the optimal method for obtaining prp from edta blood was by augmented sedimentation with boyum' ... | 1979 | 535315 |
| speciation in yersinia. | deoxyribonucleic acid (dna) relatedness among members of the genus yersinia and the biochemical reactions of these organisms were compared. these data were used to reassess speciation within the genus yersinia, and three new species were proposed. these are yersinia ruckeri sp. n., formerly called the redmouth bacterium; yersinia intermedia, sp. n., formerly a rhamnose-positive, raffinose-positive, melibiose-positive biogroup within yersinia enterocolitica; and yersinia frederiksenii sp. n., for ... | 1979 | 535389 |
| significance of transovarial infections of amblyospora sp. (microspora:thelohaniidae) in relation to parasite maintenance in the mosquito culex salinarius. | | 1979 | 536610 |
| development, ultrastructure, and mode of transmission of amblyospora sp. (microspora) in the mosquito. | amblyospora sp. in culex salinarius (coquillett) is transovarially transmitted and has 2 developmental sequences, one in each host sex. in females, the entire life cycle is restricted to oenocytes which become greatly hypertrophied due to the multiplication of diplokaryotic cells during merogony and come to lie next to ovaries. sporulation occurs only after a blood meal is taken and is shortly followed by infection of the oocytes and subsequent transmission to the next host generation. in the ma ... | 1979 | 536933 |
| organochlorine pesticide residues in animals of tasmania, australia-1975-77. | animals taken in tasmania including duck (anas superciliosa), eel (anguilla australis), english perch (perca fluviatilis), white-faced heron (ardea pacifica), brown trout (salmo trutta), european starling (strunus vulgaris), cat (felis cattus), cormorant (phalacrocorax sp.), mutton bird (puffinus tenuirostris), tasmanian devil (sarcophilus harrisii), rainbow trout (salmo gairdnerii), tasmanian raven (corvus mellori), tench (tinca tinca), and quail (coturnix sp.) were sampled for p,p'-dde, pp,p'- ... | 1979 | 537866 |
| a sensitive gas-chromatographic assay using a nitrogen-phosphorus detector for determination of antipyrine and aminopyrine in biological fluids. | a method using gas chromatography with organic nitrogen-sensitive detection is described for measurement of antipyrine and aminopyrine concentrations in biological fluids. the analysis was performed isothermally on 3% sp-2250 db after alkalinized saliva was extracted into chloroform. phenacetin served as internal standard. low oral doses of antipyrine (1.0-1.8 mg/kg) and/or aminopyrine (2 mg/kg) were measured accurately in saliva of normal human subjects. the standard curves for antipyrine and a ... | 1979 | 538077 |
| [the helminthofauna of teleostei from madagascar. a review of the genus pseudolamellodiscus yamaguti, 1953 (monogenea) (author's transl)]. | two new species of the genus pseudolamellodiscus yamaguti, 1953 (monogenea, diplectanidae): p. forsterii n. sp. and p. jelloi, branchial parasites of sphyraena forsteri and sphyraena jello respectively are described as well as two other species of the genus, p. pshyraenae yamaguti, 1953 and p. nossibei euzet and razarihelisoa, 1959. the diagnosis of the genus has been modified. | 1979 | 539726 |
| transformation of mercuric chloride and methylmercury by the rumen microflora. | the microflora in strained rumen fluid did not methylate or volatilize 203hg2+ at detectable rates. however, there was an exponential decay in the concentration of added ch3hg+, which was attributed to demethylation. the major product of demethylation was metallic mercury (hg0), and it was released as a volatile product from the reaction mixture. demethylation occurred under both anaerobic and aerobic conditions. the rate of demethylation was proportional to the concentration of added ch3hg+-hg ... | 1979 | 539820 |
| bacterial flora of the schistosome vector snail biomphalaria glabrata. | the aerobic heterotrophic bacterial flora in over 200 individuals from 10 wild populations and 3 laboratory colonies of the schistosome vector snail biomphalaria glabrata was examined. internal bacterial densities were inversely proportional to snail size and were higher in stressed and laboratory-reared snails. the numerically predominant bacterial genera in individual snails included pseudomonas, acinetobacter, aeromonas, vibrio, and several members of the enterobacteriaceae. enterobacteriacea ... | 1979 | 539821 |
| hypoglycemic effect of opuntia cactus. | nopal (opuntia sp.) has been traditionally used by the mexican population for the treatment of diabetes mellitus. the purpose of this work is to describe effects produced by directly liquified nopal and extracts from this plant in healthy and pancreatectomized rabbits. preliminary results allow us to conclude that opuntia streptacantha, lemaire, has hypoglycemic properties when orally administered, in animals with experimentally induced diabetes as well as in healthy ones with physiologic hyperg ... | 1979 | 539865 |
| the degradation of cholic acid by pseudomonas sp. n.c.i.b. 10590. | the microbial degradation of cholic acid by pseudomonas sp. n.c.i.b. 10590 was studied, and two major products were isolated and identified as 7 alpha, 12 beta-dihydroxyandrosta-1,4-diene-3,17-dione and 7 alpha, 12 alpha-dihydroxy-3-oxopregna-1,4-diene-20-carboxylic acid. four minor products were isolated and evidence is given for the following structures: 7 alpha, 12 alpha-dihydroxyandrosta-1,4-diene-3,17-dione, 12 beta-hydroxyandrosta-1,4,6-triene-3,17-dione, 7 alpha, 12 beta, 17 beta-trihydro ... | 1979 | 540054 |
| biochemical alterations of connective tissue metabolism in the arterial walls of stroke-prone spontaneously hypertensive rats. | 1. the chemical characteristics of the vascular connective tissue components were determined in stroke-prone (sp), stroke-resistant (sr) spontaneously hypertensive (sh) rats and normotensive wistar-kyoto (wk) rats. 2. the ratio of hydroxylysine to hydroxylsine plus lysine in the vascular collagen was increased in 6-month-old sp-sh rats and sr-sh rats as compared with wk rats. 3. an age-related increase in uronic acid and hexose content of the aorta was noted in sp-sh, sr-sh and wk rats. however, ... | 1979 | 540454 |
| isonicotinic & 2-hydroxy-isonicotinic acid hydroxylases of sarcina sp. | | 1979 | 540926 |
| staphcoccomycin, a new basic macrolide antibiotic. | staphcoccomycin (scm) is a new member of the basic macrolide family of antibiotics which was isolated from the fermentation broth of streptomyces sp. as-ng 16. the production, purification and determination of physical and chemical properties of this novel metabolite have been completed. comparison of the mass fragmentation patterns of scm and its peracetate with those of angolamycin peracetate suggested a des-mycarosyl derivative of angolamycin. moreover, the molecular ion peak (m/e 771) corres ... | 1979 | 541251 |
| effects of noise on cochlear potentials and endolymph potassium concentration recorded with potassium-selective electrodes. | guinea pig cochleas were exposed to either broad-band noise at intensities between 95 and 115 dba or octave-band noise centered at 380 hz or 4.2 khz at intensities between 115 and 125 db spl. cochlear microphonics (cm), summating potentials (sp) and action potentials (ap) were recorded from differential electrodes in the perilymphatic scalae between successive 20-min periods of noise exposure. the endocochlear potential (ep) and endolymph potassium concentration [kendo+] were recorded continuous ... | 1979 | 541281 |
| species of cloacina linstow, 1898 (nematoda: strongyloidea) from the black-tailed wallaby, wallabia bicolor (desmarest, 1804) from eastern australia. | species of cloacina linstow, 1898 (nematoda: strongyloidea) are reported and/or described from the stomach of the macropodid marsupial wallabia bicolor (desmarest, 1804) collected in eastern australia. nematodes were examined from 26 hosts collected in 3 states and the number of species of cloacina in any one host was 2--7. the following species were encountered: c. wallabiae johnston and mawson, 1939, c. gallardi johnston and mawson, 1940, c. edwardsi mawson, 1972 and c. cornuta (davey and wood ... | 1979 | 541500 |
| eimeria caprina sp. n. from the domestic goat, capra hircus, from the usa. | the ellipsoidal to slightly ovoid oocysts of eimeria caprina sp. n. from the domestic goat, capra hircus, are 27--40 x 19.5--26 micrometers (mean 31.8 x 23.1 micrometers); their sporocysts are 13--17 x 7--10 micrometers (mean 15.3 x 8.5 micrometers). the oocyst wall is 1.7 micrometers thick, smooth, dark brown to brownish-yellow, and 2-layered. micropyle, polar granule, and sporocyst residuum are present; micropylar cap and oocyst residuum are absent. these features distinguish the new species f ... | 1979 | 541761 |
| association between azotobacter and other soil bacteria and its effect on nitrogen fixation. | the association between a. vinelandii and either agrobacterium sp. or micrococcus sp., which are usually found as contaminants in azotobacter cultures, was investigated. in comparison with pure cultures, association increased the microbiol counts in addition to increasing nitrogen fixation rates and efficiency. in liquid cultures higher azotobacter densities were observed in the top 5 cm of the column concomitant with lowering the economic coefficient of utilization of carbonaceous compounds, wh ... | 1979 | 543344 |
| vitamin requirements of fusarium oxysporum f. sp. vasinfectum. | the effect of eight water-soluble vitamins on germination, germ-tube extension, growth, and sporulation of fusarium oxysporum schl. f.sp. vasinfectum (atk.) snyder and hansen, was studied. each vitamin was utilized in eight different concentrations. the fungus responded favourably to all of the utilized vitamins in almost all the concentrations where germination, growth, and sporulation were substantially greater than the controls. among the vitamins used, the fungus appeared to be highly sensit ... | 1979 | 543346 |
| comparison of three methods of susceptibility testing of bacteroidaceae, peptococcaceae and other anaerobes to doxycycline. | the in vitro activity of doxycycline against 147 strains of gram-positive and gram-negative anaerobes was determined by broth dilution, agar dilution and agar diffusion tests. the strains were isolated from clinical specimens in 1977. saccharolytic bacteroides strains (39 b. fragilis, 6 b. thetaiotaomicron, 4 b. vulgatus) showed broth dilution mics of less than or equal to 0.0625-4.0 microgram/ml after 5 h incubation and mics of less than or equal to 16 microgram/ml after 15 h incubation at 37 d ... | 1979 | 543353 |
| coexistence of different pathways in the metabolism of n-propylbenzene by pseudomonas sp. | pseudomonas desmolytica s449b1 and pseudomonas convexa s107b1 grown on n-propylbenzene oxidized n-propylbenzene to beta-phenylpropionic acid and benzoic acid by initial oxidation of the n-propyl side chain and the following beta-oxidation, respectively. the same strains also oxidized n-propylbenzene to 3-n-propylcatechol by initial oxidation of positions 2 and 3 of the aromatic nucleus. a ring fission product, 2-hydroxy-6-oxononanoic acid, was also isolated from the culture broth. together with ... | 1979 | 543699 |
| [schistosomiosis infection produced by human and wild strains from the rio paraiba do sul valley sp (brazil), in isogeneic mice]. | | 1979 | 549223 |
| stereochemical structure recognized by the l-fucose-specific hemagglutinin produced by streptomyces sp. | a hemagglutinin has been purified 4000-fold from the culture filtrate of a strain of streptomyces by affinity chromatography. the purified preparation was judged to be homogeneous by gel electrophoresis and its molecular weight was estimated to be about 70 000 by sodium dodecyl sulfate polyacrylamide gel electrophoresis. it may exhibit its full hemagglutinating activity in the monomer form. this hemagglutinin strongly agglutinated human blood group o erythrocytes and was inhibited by l-fucose. i ... | 1979 | 549650 |
| peculiarities of the development of puccinia graminis f. sp. tritici on the leaf surfaces of wheat cultivars and other non-host plants differing in resistance. | | 1979 | 549666 |
| macropotrema, pertinax gen. et sp. nov. (digenea: paramphistomidae) from a wallaby, macropus agilis, in northern australia, and associated pathology. | macropotrema pertinax gen. et sp. nov. (digenea: paramphistomidae) is described from the caecum of the macropodid marsupial macropus agilis (gould, 1842) from northern australia. the new genus is characterised as follows: ventro-terminal acetabulum bearing many papillae; oral sucker with constriction and paired diverticula; oesophagus with muscular bulb; cirrus sac and genital sucker absent; testes symmetrical, unlobed, preovarian; laurer's canal opening anterior to excretory pore. the genus is ... | 1979 | 550711 |
| [josefilaria mackerrasae gen. et sp. nov. (nematoda: filarioidea) a parasite of the ghost bat macroderma gigas dobson (author's transl)]. | josefilaria mackerrasae n. gen., n. sp., a filarial of the ghost bat macroderma gigas in australia is described. this filarioid has affinities with the genus litomosa, but it can be separated by a variety of both more highly evolved characters (buccal capsule reduced to a pre-oesophageal ring; external lateral papillae absent) and primitive characters ("caudal alae" of the male, long and divided oesophagus, vulva not far from the nerve ring, numerous caudal mucrons of the female). | 1979 | 550716 |
| bovine cerebral theileriosis (turning sickness) with spinal cord involvement. | a case of bovine cerebral theileriosis is described in which the principle lesions occurred in the spinal cord and its meninges. these were clogging of vessels with lymphocytes, many of which were parasitised by theileria sp. schizonts (probably t. mutans), thrombosis and infarction of nervous tissue, and lymphocytic meningomyelitis. rare cerebral meningeal vessels showed thrombosis. clinically the animal showed posterior paresis. | 1979 | 551186 |
| cooperia connochaeti sp. nov. (nematoda, trichostrongylidae) from the blue wildebeest, connochaetes taurinus (burchell, 1823). | a new species of nematode. cooperia connochaeti, was collected from cross-bred blue and black wildebeest at krugersdorp (transvaal), blue wildebeest connochaetes taurinus (burchell, 1823) from the kruger national park (transvaal) and lake xhau (botswana), as well as from impala aepyceros melampus (lichtenstein, 1812) at malelane (transvaal) and pafuri (kruger national park). these nematodes are smaller than cooperia pectinata ransom, 1907, and their spicules, which are bifid in the distal third, ... | 1979 | 551358 |
| descriptions of the adults and pupa of culicoides hildae n. sp. from the republic of south africa (diptera: ceratopogonidae). | | 1979 | 551366 |
| [parasite contamination from feces of dogs and cats in soil and sand-boxes in public parks and schools in bologna]. | in bologna (italy), about 1/10 (public parks) and 1/5 (schools of soil samples from sand-boxes and 1/5 (public parks) and 1/10 (schools) op soil samples from the surroundings were found positive for dog and/or cat parasites. the finding of toxocara sp. eggs in about 1/20 of soil samples from public parks and schools is especially important due to the possibility of human infection. conspicuous was also the parasitic contamination of the faeces collected from green arcas: 48% of the samples resul ... | 1978 | 553274 |
| [dissemination of fasciola hepatica in cattle of novara province]. | the diffusion of f. hepatica in the cattle of the novara province was studied by means of a necroscopic survey on 2184 regularly slaughtered animals and a copro-microscopic survey on 5063 feaces samples picked up from 162 breedings farms. the 28.40% of the slaughtered animals resulted infected with f. hepatica. the parasite also resulted present in 52.74% of the examined breeding farms. a large diffusion of paramphistomum sp. was shown, too. the diffusion areas of these trematodes may be seen in ... | 1978 | 553277 |
| streptomyces novoguineensis sp. nov., an amipurimycin producer, and antimicrobial activity of amipurimycin. | a taxonomic study of streptomyces strain t-36496, which produces an antibiotic effective against rice blast, revealed that it represented a new taxon and it was named streptomyces novoguineensis sp. nov. the antibiotic, which was named amipurimycin, showed antifungal activity in vitro and considerable curative effect onleaf blast both in green house and field tests at concentrations ranging from 10 to 20 ppm. it was also effective against neck and panicle blast at the same concentration range. | 1977 | 557031 |
| effects of polymer surface molecular structure and force-field characteristics on blood interfacial phenomena. | to quantify the effects of major surface structural factors influencing interfacial reactions induced by polymers in native blood, model surfaces of solvent-cast films of two analogous poly(ether urethanes) and three homologous polyamides (nylon 4, 6/6, and 12) were exposed ex vivo to canine blood under the well-defined hemodynamic conditions of the stagnation point flow experiment. the selected surfaces allow for incremental changes in properties and were characterized by their "composite surfa ... | 1977 | 557479 |
| a simplified method using commercial milk powder for hand-rearing of the caesarean-derived infant rabbits (author's transl)]. | an efficient and simplified method for hand-rearing of caesarean-derived infant rabbits under gnotobiotic condition was devised. the caesarean-derived infant dutch or japanese-white rabbits and their hybrids (f1; japanese-white female x dutch male) were reared in sterilized vinyl-isolators by hand-feeding with two kinds of milk diets, a and b, consisted mainly ofa commercial milk powder for dogs and cats (esbilac) supplemented with several minor components (table 2) and administered intragastric ... | 1977 | 558100 |
| [rearing and management of chimpanzees for experimental infection with hepatitis b virus (author's transl)]. | for the purpose of experimental infection with human hepatitis b virus, 14 chimpanzees (pan troglodytes) were delivered to the division of animal research, faculty of medicine, university of tokyo, tokyo. these chimps, 11 males and 3 females, born in the west africa, had been reared for two to six months. several days after delivery, they were anesthetized with ketalar in order to make clinical, bacteriological and parasitological examinations; it was found that one of them was in malnutrition, ... | 1977 | 558103 |
| revision of mediorhynchus van cleave 1916 (acanthocephala) with a key to species. | species characters in mediorhynchus are discussed, and a consistent method of describing hook arrangement, longitudinal rows, is proposed. mediorhynchus papillosus van cleave 1916, and m. orientalis belopol'skaya 1953 are redescribed, and m. edmondsi sp. n. is described from palawan. the new species is most similar to m. rodensis cosin 1971 in armature, but differs from it in proboscis shape and overall size. among other new records are m. gallinarum (bhalerao, 1937) in chickens in palawan, and ... | 1977 | 559066 |
| occurrence and survival of the larval nematode anisakis sp. in the flesh of fresh, frozen, brined, and smoked pacific herring, clupea harengus pallasi. | two hundred and twenty pacific herring (clupea harengus pallasi) from yaquina bay, oregon, were divided into five groups to test the effects of various methods of handling and processing (fresh, frozen, brined, cold smoked, and cold smoked-gibbed) on the occurrence and survival of anisakis larvae in the flesh. viscera and flesh were digested separately using a pepsin-hc1 technique, and counts were taken of anisakis larvae. parasite loads were statistically largest in the flesh of frozen, brined, ... | 1977 | 559067 |
| [studies on the routine method of isolation and identification of moraxella sp. from human specimens and its pathogenicity (author's transl)]. | | 1977 | 559146 |
| [possibilities of using fungal polysaccharides as the stimulants of accumulation of antibody-producing cells]. | a study was made of the influence of yeast polysaccharides of definite structure and mol wt on the accumulation of anitbody forming cells (afc) in the spleen of mice belonging to different strains. yeast mannans rh. rubra and sp. species, and also glucan aur. pullulans with all or chiefly beta-bonds between the monosaccharide units were capable of activating the cell antibody formation, this being expressed in increased afc production in the animals with a high immune reaction to the administrat ... | 1977 | 561497 |
| [gongylonema pithyusensis n. sp. (nematoda: spiruridae), a parasite of the oesophagus of the dormouse eliomys quercinus ophiusae thomas, 1925 (rodentia: gliridae) in formentera (balearic islands) (author's transl)]. | a new nematode, gongylonema pithyusensis n. sp., parasitizing the oesophagus mucosa of the dormouse eliomys quercinus ophiusae thomas, 1925 in the balearic island of formentera (spain) is described. the male of the new species is characterized by the size of spicules and gubernaculum; the female by the morphology of the tail, the posteriour situation of the vulva and the dimensions of the eggs. it is the only gongylonema species to be known parasitizing rodents of the family gliridae. | 1977 | 561564 |
| estimation of cholecystokinin-pancreozymin (cck) in human plasma and tissue by a specific radioimmunoassay and the immunohistochemical identification of pancreozymin-producing cells in the duodenum of humans. | a reliable, sensitive, reproducible and specific radioimmunoassay for cholecystokinin-pancreozymin (cck) has been developed, using rabbit antisera to highly purified porcine hormone. the natural occurring variant of cck (39-cck), in which the ordinary cck is lengthened from its n-terminus by a hexapeptide, labelled with 125j, and repurified by column chromatography on sephadex g-10 and on sp-sephadex c-25, was used as tracer. separation from antibody-bound labelled 39-cck was carried out using a ... | 1977 | 562241 |
| vitamin a transport in plasma of the non-mammalian vertebrates: isolation and partial characterization of piscine retinol-binding protein. | studies were conducted to explore vitamin a transport in the non-mammalian vertebrates, especially pisces, amphibia, and reptilia, and to isolate and partially characterize piscine retinol-binding protein. retinol-containing proteins in fresh plasma obtained from bullfrogs and a turtle exhibited similar properties to those found in mammalian and chicken plasma: i.e., molecular weight of about 60,000-80,000 as estimated by gel filtration and binding affinity to prealbumin on human prealbumin-seph ... | 1977 | 562910 |
| lack of algesic effect of substance p on paravascular pain receptors. | 1. substance p (synthetic or extracted for intestine or central nervous system) is devoid of an algesic effect on paravascular pain receptors. 2. the algesic effect of a ap-containing acetone hcl-extract from spinal cord is explained by its high content of potassium ions. 3. sp-containing preparations which include an ammonium sulphate precipitation in the extraction procedure are algesic due to content of this salt. 4. sp-containing extract from intestine were found to be contaminated with a br ... | 1977 | 562991 |
| torulopsis armenti n. sp. | | 1977 | 563138 |
| isolation and characteristics of a skatole-producing lactobacillus sp. from the bovine rumen. | a bacterium that is capable of decarboxylating indoleacetic acid to skatole (3-methylindole) has been isolated from an l-tryptophan enrichment of bovine rumen fluid. the bacterium is a gram-positive, nonmotile, nonsporeforming rod. it is an obligate anaerobe, and strains predominatly produce d-(-)-lactic acid, with smaller amounts of l-(+)-lactic acid and acetic acid, from sugar. all four strains isolated gave a negative reaction to the indole test because they cannot form skatole directly from ... | 1977 | 563703 |
| [on the morphology of syphacia callosciuri n. sp., pin-worm parasite of a malaysian squirrel and on the origin of rattus pin-worm, syphacia muris (yamaguti, 1935) (author's transl)]. | description of a new species of oxyurid: syphacia (syphatineria) callosciuri n. sp. parasite of a sciurid rodent callosciuris caniceps in malaysia. in rodents belonging to the genus callosciurus in malaysia two species: s callosciuri n. sp. and s. owyangi quentin, 1975, show morphological characteristics which are intermediate between the primitive syphacia and two different lines of species parasite of recent rodents. these observations appear to indicate that the adaptation of syphacia of sciu ... | 1977 | 564154 |
| the effects of temperature on growth of four high arctic soil fungi in a three-phase system. | the effect of temperature on the growth of chrysosporium pannorum, cylindrocarpon sp., penicillium janthinellum, and phoma herbarum, isolated from tundra soils, was studied. the growth in two systems, glucose-mineral agar plates and sand, moistened with glucose-mineral broth, was compared. all isolates showed an exponential increase in mass (measured as protein increase) in sand and a linear rate of extension on agar. radial increase on agar was shown not to be a good index of growth in sand. tr ... | 1978 | 565246 |