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Articles 511 - 540 of 592

Full-Text Articles in Organisms

Submerged And Solid-State Phytase Fermentation By Aspergillus Niger: Effects Of Agitation And Medium Viscosity On Phytase Production, Fungal Morphology And Inoculum Performance, Maria Papagianni, Sue E. Nokes, Keith Filer Jan 2001

Submerged And Solid-State Phytase Fermentation By Aspergillus Niger: Effects Of Agitation And Medium Viscosity On Phytase Production, Fungal Morphology And Inoculum Performance, Maria Papagianni, Sue E. Nokes, Keith Filer

Biosystems and Agricultural Engineering Faculty Publications

Qualitative relationships between agitation levels and medium viscosity, Aspergillus niger morphology and phytase production were investigated in submerged and solid-state fermentations. Overall phytase production increased with increasing shaker speeds from 150 to 300 rpm, although specific growth rates and phytase production rates were higher at 150 rpm for 72 h from inoculation. Fungal morphology was greatly influenced by agitation with the morphological forms of small pellets and entangled mycelia predominating at 150 rpm, while the free filamentous form was obtained at 300 rpm. Upon inoculation of SSF, increased productivities were obtained from inocula grown at 150 rpm. A shift towards …

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Role Of KAtp Channels In Reduced Antinociceptive Effect Of Morphine In Streptozotocin-Induced Diabetic Mice, Vivek Sood, Ajay Sharma, Manjeet Singh Jan 2000

Role Of KAtp Channels In Reduced Antinociceptive Effect Of Morphine In Streptozotocin-Induced Diabetic Mice, Vivek Sood, Ajay Sharma, Manjeet Singh

Pharmacy Faculty Articles and Research

The nociceptive effect was measured using withdrawal latency in tail flick test in mice rendered diabetic by administering streptozotocin (200 mg/kg, i.p.). The antinociceptive effect of morphine (4 and 8 mg/kg, s.c.) and cromakalim, a KATP channel opener, (0.3, 1 and 2 micrograms, i.c.v.) was significantly reduced in diabetic mice. Moreover, co-administration of cromakalim(0.3 microgram) did not alter the reduced antinociceptive effect of morphine(4 mg/kg) in diabetic mice. Spleenectomy in diabetic mice restored the decrease in antinociceptive effect of morphine and cromakalim. Multiple dose treatment with insulin to maintain euglycaemia for 3 days in diabetic mice prevented the decrease in …

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Effect Of Actinomycin D And Cycloheximide On Ischemic Preconditioning-Induced Delayed Cardioprotective Effect In Rats, Devinder Singh, Ajay Sharma, Manjeet Singh Jan 2000

Effect Of Actinomycin D And Cycloheximide On Ischemic Preconditioning-Induced Delayed Cardioprotective Effect In Rats, Devinder Singh, Ajay Sharma, Manjeet Singh

Pharmacy Faculty Articles and Research

The present study was designed to investigate the effect of actinomycin D, a transcription inhibitor, and cycloheximide, a translation inhibitor, on the delayed cardioprotective effect of ischemic preconditioning. Left thoracotomy was performed in anaesthetized rats at 4th/5th intercostal space and polypropylene suture (5-0) was employed to occlude left common coronary artery. Ischemic preconditioning was produced by four episodes of 5 min of coronary artery occlusion followed by 5 min of reperfusion and thoracic cavity was sutured. Left thoracotomy was performed again after 24 hr of ischemic preconditioning and left coronary artery was occluded for 30 min followed by reperfusion for …

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Can Large Dsdna-Containing Viruses Provide Information About The Minimal Genome Size Required To Support Life?, James L. Van Etten Jan 1999

Can Large Dsdna-Containing Viruses Provide Information About The Minimal Genome Size Required To Support Life?, James L. Van Etten

James Van Etten Publications

The genomes of a few viruses, such as Bacillus megaterium phage G (670 kb) and the chlorella viruses (330 to 380 kb), are larger than the predicted minimal genome size required to support life (ca. 320 kb). A comparison of the 256 proteins predicted to be required for life with the putative 376 proteins encoded by chlorella virus PBCV-1, as well as those encoded by other large viruses, indicates that viruses lack many of these “essential” genes. Consequently, it is unlikely that viruses will aid in determining the minimal number and types of genes required for life. However, viruses may …

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An Endophytic Fungus As A Source Of New Antifungal Compounds, Lisa Marie Jungbauer Jan 1999

An Endophytic Fungus As A Source Of New Antifungal Compounds, Lisa Marie Jungbauer

Honors Theses, 1963-2015

Medical advances in society such as organ transplants, prolonged chemotherapy, and those that lengthen the lives of AIDS patients and the elderly increase the number of immunocompromised individuals(1). When the immune system is compromised, opportunistic fungi can flourish and become fatal. Current antifungal treatments are limited and often toxic(2,3). In addition, strains of fungi resistant to available antifungals are emerging(4,5). Fungi were selected as the source of potential new antifungal agents because fungal antagonism has been reported in most fungal ecosystems(6). Endophytic fungi, which inhabit the spaces between plant cells, are known producers of natural products and that assist plants …

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Development Of A Blocking Enzyme-Linked Immunosorbent Assay For Detection Of Serum Antibodies To O157 Antigen Of Escherichia Coli., W Laegreid, M Hoffman, J Keen, R Elder, J Kwang Mar 1998

Development Of A Blocking Enzyme-Linked Immunosorbent Assay For Detection Of Serum Antibodies To O157 Antigen Of Escherichia Coli., W Laegreid, M Hoffman, J Keen, R Elder, J Kwang

Manuscripts, Articles, Book Chapters and Other Papers

The O157 antigen of Escherichia coli shares structural elements with lipopolysaccharide (LPS) antigens of other bacterial species, notably Brucella abortus and Yersinia enterocolitica 09, a fact that confounds the interpretation of assays for anti-O157 antibodies. To address this problem, a blocking enzyme-linked immunosorbent assay (bELISA) was designed with E. coli O157:H7 LPS as the antigen and a monoclonal antibody specific for E. coli O157, designated 13B3, as the competing antibody. The bELISA had equivalent sensitivity to, and significantly higher specificity than, the indirect ELISA (iELISA), detecting anti-O157 antibodies in sera from cattle experimentally inoculated with O157:H7. Only 13% of sera …

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Indicator Bacteria Concentrations Of Two Northwest Arkansas Streams In Relation To Flow And Season, Dwayne R. Edwards, Mark S. Coyne, Tommy C. Daniel, P. F. Vendrell, J. F. Murdoch, P. A. Moore Jr. Jan 1997

Indicator Bacteria Concentrations Of Two Northwest Arkansas Streams In Relation To Flow And Season, Dwayne R. Edwards, Mark S. Coyne, Tommy C. Daniel, P. F. Vendrell, J. F. Murdoch, P. A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Concentrations of indicator bacteria such as fecal coliform (FC) and fecal streptococcus (FS) are often used to assess the suitability of waters for their intended use(s) and to allocate resources for water quality improvement measures. There is evidence, however, that concentrations of FC and FS can be influenced by variables such as season and flow rate during sampling, which could lead to biased results. The objective of this study was to assess the impacts of season and flow rate on concentrations of FC and FS. Fecal indicator bacteria concentrations were measured for approximately three years at five sites on two …

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An Analysis Of Two Tests For Diesel Contamination In The Environment When Considering The Impact On Hydrocarbon Degrading Bacteria, Chris Wedding Dec 1996

An Analysis Of Two Tests For Diesel Contamination In The Environment When Considering The Impact On Hydrocarbon Degrading Bacteria, Chris Wedding

Mahurin Honors College Capstone Experience/Thesis Projects

No abstract provided.

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Metal-Resistance Genetically Engineered Bacteria, Sylvia Daunert, Donna Scott, Sridhar Ramanathan Jun 1996

Metal-Resistance Genetically Engineered Bacteria, Sylvia Daunert, Donna Scott, Sridhar Ramanathan

KWRRI Research Reports

Bacterial-based electrochemical and optical sensing systems that respond in a highly selective and sensitive manner to antimonite and arsenite have been developed. This was accomplished by using genetically engineered bacteria bearing one of two plasmids constructed for our studies. The first plasmid, pBGD23, contains the operator/promoter region (O/P) and the gene of the ArsR protein from the ars operon upstream from the β-galactosidase gene. In the absence of antimonite/arsenite, ArsR binds to the 0/P site and prevents the transcription of the genes for ArsR and β-galactosidase, thus blocking expression of these proteins. When antimonite or arsenite is present in the …

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Revival Of Metabolism In Rehydrated Marasmius Oreades, Lorie J. Warren Jan 1992

Revival Of Metabolism In Rehydrated Marasmius Oreades, Lorie J. Warren

Honors Theses, 1963-2015

Mushrooms from the genus Marasmius have the ability to revive -- viz., dried specimens regain their original shape when moistened. The purpose of this study was to determine if the basidiocarps are metabolically active upon revival or whether they simply absorb moisture like a sponge. The reduction of tetrazolium chloride to a red, water-insoluble formazan pigment was used as a measure of respiratory activity. Basidiocarp samples were incubated in a phosphate buffer containing 1% tetrasolium chloride. After a suitable period, the samples were extracted with MeOH to remove any formazan pigment and the absorbance measured at 530 nm. Fresh M. …

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Vocal Recognition Of Pups By Mother Mexican Free-Tailed Bats, Tadarida Brasiliensis Mexicana, Jonathan P. Balcombe May 1990

Vocal Recognition Of Pups By Mother Mexican Free-Tailed Bats, Tadarida Brasiliensis Mexicana, Jonathan P. Balcombe

Sentience Collection

The ability of Mexican free-tailed bat mothers and pups to recognize vocalizations of their presumptive kin (pup isolation calls and mother echolocation calls, respectively) was tested using playbacks of recorded calls. Captive individuals were presented with calls of two bats, one presumptive kin and the other a stranger, from opposite sides of a circular wire arena. Response was determined by amount of time spent on each side of the arena, time spent in contact with a cloth bat model in front of each speaker, and number of separate contacts with each model. For the latter two measures, mothers showed a …

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Effect Of Inhibitors Of Arachidonic Acid Metabolism On Corneal Neovascularization In The Rat, W. L. Haynes, A. D. Proia, G. K. Klintworth Jul 1989

Effect Of Inhibitors Of Arachidonic Acid Metabolism On Corneal Neovascularization In The Rat, W. L. Haynes, A. D. Proia, G. K. Klintworth

Osteopathic Medicine, Jerry M. Wallace School of

No abstract provided.

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The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth Jan 1989

The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth

Pharmacy Faculty Articles and Research

The complete amino-acid sequences of the hemoglobins from the adult Sumatran tiger (Panthera tigris sumatrae) have been determined on automatic liquid- and gas-phase sequenators. The globin chains were isolated by reverse phase HPLC on a column of Nucleosil-C4.7V-Acetylserine was detected by FAB-mass spectroscopy as TV-terminal amino acid residue of the βI chain. Comparing the sequences of the globin chains of the tiger with that of human Hb-A, 23 substitutions were recognized in the a, 29 in βI and 28 in the βII chain.

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Long Season Wheat, W. R. Smith, K. Anderson Jan 1987

Long Season Wheat, W. R. Smith, K. Anderson

Experimental Summaries - Plant Research

Agronomy of long season wheats, 87AL9, 87AL10, 87ES3, 87ES4, 87JE2, 87JE3, 87MT8, 87MT9 and 87NA9. Septoria control in long season wheat, 87E4 and 87MT10. Nitrogen response by long season wheat, 87ES5 and 87JE4. Phenology of long season wheats, 87E5 and 87MT11.

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Grain Legumes Evaluation., G. H. Walton, T. R. Trent Jan 1987

Grain Legumes Evaluation., G. H. Walton, T. R. Trent

Experimental Summaries - Plant Research

Lupin agronomy, 87AL14. Nitrogen fertilizer for legume crops, 87BA2. Pea variety evaluation, 87C59, 87M08, 87ME1, 87N012, 87SG8, 87KA7, 87N2. Interstate pea variety trials, 87N096, 87N099, 87KA6. Disease Resistance Pea Variety Testing, 87JE1. Grain legume species comparisons, 87A2, 87C2, 87KA37, 87M09, 87MA1, 87NA15. Legume species variety trials, 87LG2. Faba bean evaluation, 87MC34 and 87KA8. Faba bean 'synthetic' variety yield trial, 87MC36. Faba bean screening nursery, 87MC35. Preliminary agronomy of faba bean, chickpea and lentil, 87A21. Seeding date, 87A22. Legume species herbicide tolerance, 87KA82.

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The Primary Structure Of Hemoglobins Of The Adult Jaguar (Panthera Onco, Carnivora), Aftab Ahmed, Meeno Jahan, Zafar H. Zaidi, Gerhard Braunitzer, Reinhard Göltenboth Jan 1987

The Primary Structure Of Hemoglobins Of The Adult Jaguar (Panthera Onco, Carnivora), Aftab Ahmed, Meeno Jahan, Zafar H. Zaidi, Gerhard Braunitzer, Reinhard Göltenboth

Pharmacy Faculty Articles and Research

The primary structure of the hemoglobins from Jaguar (Panthera onco) are presented. Electrophoretic separations without and with a dissociating agent revealed the presence of two hemoglobin components, OL2ß\ and a2 02. The separation of the hemoglobin components was achieved by ion-exchange chromatography. The globin chains were separated by ion-exchange chromatography and also by reversed phase HPLC. The amino-acid sequences of the native chains and peptides were determined by liquid-phase and gas-phase sequencing. N-Acetylserine was detected by FAB-mass spectroscopy as N-terminal group of the ßl chain. The sequences are compared with that of human hemoglobin (Hb A).

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High Input Barley Production Systems In The High Rainfall Zone., G. J. Parlevliet Jan 1987

High Input Barley Production Systems In The High Rainfall Zone., G. J. Parlevliet

Experimental Summaries - Plant Research

Barley systems in the high rainfall zone effect of nitrogen fungicides and seeding rate on barley yield, 87BR2.

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Barley Foliar Diseases And Blackspot Of Field Peas., T. N. Kahn, M. Judges, K. Embry Jan 1986

Barley Foliar Diseases And Blackspot Of Field Peas., T. N. Kahn, M. Judges, K. Embry

Experimental Summaries - Plant Research

Barley foliar diseases, Blackspot of field peas. 86BA15, 86C13, 86BA12, 86MT10, 86M10, 86BA13, 86BA14, 86M029-31, 86N079, 86GE27, 86M029, 86GE28, 86TS28, 86WH12, 86C4, 86C11, 86C5, 86C6, 86C12, 86C7, 86KA56, 86M45, 86BA15, 86MT13, 86C13, 86BA16, 86MD35, 86MT14, 86MD36.

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Fungicide Testing, M. J. Barbetti Jan 1986

Fungicide Testing, M. J. Barbetti

Experimental Summaries - Plant Research

Fungicidal control of Phoma blackstem disease in medic, 86 KA 11. Medic cultivar susceptibility to Phoma blackstem disease, 85 KA 56. Role of Phoma seed infection in medic, 85 KA 57. Effect of soil pasteurization on damage caused by six fungal root pathogens, 86 PE 53. Susceptibility of 18 sub-clover cultivars to isolates of the clover scorch fungus, Kabatiella caulivora, 86 PE 54. Effect of plant age or growth stage of subterranean clover on susceptibility to infection by the clover scorch fungus, Kabatiella caulivora, 86 PE 55. Susceptibility of rapeseed lines to blackleg crown canker, 86 MT 1, 86 MT …

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Foliar Wheat Diseases And Cereal Smuts., R. Loughman, A. E. Twigg Jan 1986

Foliar Wheat Diseases And Cereal Smuts., R. Loughman, A. E. Twigg

Experimental Summaries - Plant Research

Chemical control of leaf spots of wheat, 86BA41, 86MT49. Semi-natural inoculum for plant breeders plots, 86MD2. Chemical control of soil-borne flag smut, 86ME73, 86M032. Chemical control of barley loose smut, 86AL50, 86KA59, 86MT47. Chemical control of loose smut in barley with different levels of seed infections, 86MT48. Disease characterisation of cereal variety trial stage 4 sites.

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Lupin Root Rot, Lupin Hypocotyl Rot, Rhizoctonia Coleoptile Rot Of Wheat, Rhizoctonia Root Rots In Long Term Wheat-Pasture Rotation Trials., M. Sweetingham Jan 1986

Lupin Root Rot, Lupin Hypocotyl Rot, Rhizoctonia Coleoptile Rot Of Wheat, Rhizoctonia Root Rots In Long Term Wheat-Pasture Rotation Trials., M. Sweetingham

Experimental Summaries - Plant Research

Lupin Root Rot: 86Cl4, 86WH15, 86ME85, 86LG63, 85C63, 86WH14. Lupin Hypocotyl rot, 86BA49, 86BA21. Rhizoctonia coleoptile rot of wheat, 86BA19, 86BA20 Rhizoctonia root rots in long term wheat-pasture rotation trials.

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Fruit Diseases., P. Mcr Wood Jan 1986

Fruit Diseases., P. Mcr Wood

Experimental Summaries - Plant Research

Apple Powdery Mildew, 86BY42. Peach Leaf Curl, 86MN6. Pear Scab, 86MN7.

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Fungicidal Control Of Wheat Leaf Diseases, A G P Brown Jan 1985

Fungicidal Control Of Wheat Leaf Diseases, A G P Brown

Experimental Summaries - Plant Research

In a further experiment on fungicides to protect wheat during flowering and grain fill from Septoria nodorurn at Badgingarra Research Station, rates below 1 litre and lower carrier volumes were compared for the fungicide Tilt applied at Zadoks stage 50. A few other fungicides were also included. At spraying there was a moderate infection by Septoria nodorurn (85% of leaf damage), Septoria tritici (10%) and Pyrenophora tritici-repentis (5%). Good control was obtained with most treatments (Table 1) with only Benlate at 1 kg/ha appearing ineffective when percentage disease was rated on October 10, 1985. At October 17 disease scores differed …

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Effect Of Pasture Spraying On Gall Development., V. Nieman Jan 1985

Effect Of Pasture Spraying On Gall Development., V. Nieman

Experimental Summaries - Plant Research

Sprays with low rates of desiccant herbicide just after head emergence has been shown to control development of toxicity in the same year. The trial was conducted to compare the effect of herbicides with different modes of action on control of toxicity and seed set. 85KA65.

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Disease Rating System., M Sweetingham Jan 1985

Disease Rating System., M Sweetingham

Experimental Summaries - Plant Research

Lupin hypocotyl rot trials, 85BA29, 85BA30, 85BA31, 85N054. Lupin root rot trials, 85WH31, 85WH32, 85WH52. Lupin root disease survey - Moora District. Common Root Rot studies, 82M26.

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Phomopsis Pod And Seed Infection Of Stem-Resistant Lupin Lines., P Mcr. Wood Jan 1985

Phomopsis Pod And Seed Infection Of Stem-Resistant Lupin Lines., P Mcr. Wood

Experimental Summaries - Plant Research

85BA36 - Competitive potential of Type B Phomopsis inoculum. 85BA38 - Phomopsis pod and seed infection of stem-resistant lupin lines 85WH50 - Survival of Phomopsis

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Foliar Diseases Of Wheat., R. Loughman Jan 1985

Foliar Diseases Of Wheat., R. Loughman

Experimental Summaries - Plant Research

Glasshouse screening for resistance to septoria nodorum and pyrenophora tritici repentis. Assessment of Interstate Variety Trial 'B' 1985. Glasshouse assessment of a novel selection technique. Duration of leaf wetness incubation as it affects glasshouse screening. Effect of leaf disease in multiple wheat cropping. M1, M2, E1, E2, E3. An inoculum for inducing s. Nodorum epidemics in the field.

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Root Diseases Of Cereals., G. C. Macnish Jan 1985

Root Diseases Of Cereals., G. C. Macnish

Experimental Summaries - Plant Research

Long term medic/wheat rotation and root diseases, 77ES8. Root disease build-up and rates of phosphorus on wheat, 78ES30. Root diseases following cleaning crops, 79E12. Take-all and ICI fungicide PP450, 85MT46. Rhizoctonia root rot and ryegrass control, 85E19. Rhizoctonia patch in lupins, 82E17. Effect of nitrogen sources on take-all, 82N34, 77E4, 77MT19.

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Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases., R. F. Brennan Jan 1985

Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases., R. F. Brennan

Experimental Summaries - Plant Research

Micronutrients (Cu, Zn) and take-all, 83ES39, 83ES40. Nitrogen and Phosphorus rates and take-all, 83ES41, 83ES42, 83ES43. Split applications of Nitrogen and take-all, 84N1. Take-all and Manganese/Ammonium interaction, 84E1. Split applications of Nitrogen and take-all, 84E2. Cu residual on wheat and take-all, 67E9, 67E8. Take-all and Manganese/Ammonium interaction, 84LG2. Cultivation depths and timing effects on Rhizoctonia, 84E24. Chemical fallow and cultivation effects on Rhizoctonia, 85E33. Effects of cultivation depths and machines on Rhizoctonia and yield, 85E29.

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Root And Foliar Diseases Of Wheat On Sandplain In The Geraldton Region., J. Wilson Jan 1985

Root And Foliar Diseases Of Wheat On Sandplain In The Geraldton Region., J. Wilson

Experimental Summaries - Plant Research

A project funded by Wheat Industry Research Council and Wheat Industry Research Committee of W.A. Interactions between stubble, rotation, ripping and nitrogen, ECRS, 85C53. The effect of type of cultivation implement, and time of cultivation, ECRS, 85C54. The effect of fumigation, ECRS, 85C91. Residual ripping responses from 1984, 84C15.

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