abstract：:A superoxide dismutase (SOD) was purified from Spirulina platensis sonicate. The SOD was purified to homogeneity (48-fold and 0.24% yield) through ammonium sulphate precipitation and DEAE-52 anion exchange chromatography. The SOD from S. platensis appeared to be a homodimer with a molecular weight of 30 kDa and a subu...

journal_title：World journal of microbiology & biotechnology

authors： Desai K,Sivakami S

更新日期：2007-12-01 00:00:00

abstract：:Two bacterial species (isolates N and O) were isolated from a paddy soil microcosm that had been artificially contaminated with diesel oil to which extrinsic Pseudomonas aeruginosa strain WatG, had been added exogenously. One bacterial species (isolate J) was isolated from a similar soil microcosm that had been biosti...

journal_title：World journal of microbiology & biotechnology

authors： Ueno A,Ito Y,Yumoto I,Okuyama H

更新日期：2007-12-01 00:00:00

abstract：:Nikkomycin Z (NZ) is a competitive inhibitor of chitin synthase III in the yeast Saccharomyces cerevisiae. Myosin type II-deficient yeast strains (myo1) display a dramatic reduction in growth when chitin synthase III activity is inhibited by NZ, supporting the contention that actomyosin motility plays an important rol...

journal_title：World journal of microbiology & biotechnology

authors： Rivera-Molina FE,González-Crespo S,Maldonado-De la Cruz Y,Ortiz-Betancourt JM,Rodríguez-Medina JR

更新日期：2006-03-01 00:00:00

abstract：:Pseudomonas strains were isolated from the rhizosphere of maize grown in yellow-red latosol from Rio de Janeiro, Brazil, to serve as a delivery system for heterologous genes and for risk assessment studies in tropical soils. Selected strains were modified by insertion of the cryIVB gene from Bacillus thuringiensis and...

journal_title：World journal of microbiology & biotechnology

authors： Araújo MA,Mendonça-Hagler LC,Hagler AN,van Elsas JD

更新日期：1996-11-01 00:00:00

abstract：:In a search for microorganisms producing extracellular protease with unhairing activity, Bacillus subtilis IIQDB32 was isolated. Protease formation was significantly stimulated by glucose, tryptone, yeast extract, Ca(2+) and Mn(2+), but was repressed by ammonia and Fe(2+). ...

journal_title：World journal of microbiology & biotechnology

authors： Varela H,Ferrari MD,Belobrajdic L,Weyrauch R,Loperena L

更新日期：1996-11-01 00:00:00

abstract：:The success of biotechnological research, development and marketing depends to a large extent on the international transfer of information and on the ability to organise biotechnology information into knowledge. To increase the efficiency of information-based approaches, an information strategy has been developed and ...

journal_title：World journal of microbiology & biotechnology

authors： Boh B

更新日期：1996-09-01 00:00:00

abstract：:Anaerobic degradation of organic matter follows similar pathways in digesters and anaerobic freshwater sediments. The responsible microorganisms are linked in a complex food web, where short chain fatty acids and H2 are important intermediates. Degradation of short-chain fatty acids is endothermic under standard condi...

journal_title：World journal of microbiology & biotechnology

authors： Westermann P

更新日期：1996-09-01 00:00:00

abstract：:Ethanol tolerance, osmotolerance and sugar conversion efficiency were used to screen yeasts for potential ethanol production from sweet-stem sorghum juice. Of the ten strains of Saccharomyces sp. that produced ethanol from the sorghum juice or from yeast extract/phosphate/sucrose (YEPS) media, the best sugar conversio...

journal_title：World journal of microbiology & biotechnology

authors： Bulawayo B,Bvochora JM,Muzondo MI,Zvauya R

更新日期：1996-07-01 00:00:00

abstract：:Genetic relatedness of 20 Salmonella isolates comprising 16 serotypes was analysed by restriction endonuclease digestion of the total DNA with six endonucleases individually. The rDNA fingerprints generated by EcoRI were more polymorphic, each serotype showed a unique fingerprint sharing several core (monomorphic) ban...

journal_title：World journal of microbiology & biotechnology

authors： Koh-Luar SI,Chew ST,Lau E,Chua SB

更新日期：1996-07-01 00:00:00

abstract：:A rapid, simple and sensitive method for detection of ferulic and p-coumaric acids using HPLC has been developed which can be used to determine the respective phenolic acid esterase activities of microorganisms. Prior concentration, purification or derivatization of the samples are not required. As little as 0.5 mg fe...

journal_title：World journal of microbiology & biotechnology

authors： O'Neill FH,Christov LP,Botes PJ,Prior BA

更新日期：1996-05-01 00:00:00

abstract：:Bacillus subtilis, isolated from tannery waste, produced an alkaline protease at optimal activity when grown in a casein/gelatine medium in a stirred tank fermenter at 37°C with the dissolved oxygen tension at 40% air saturation. Optimum protease activity (223 U ml(-1)) was at pH 8.5 and was stable for 1 h up to 45°C ...

journal_title：World journal of microbiology & biotechnology

authors： Hameed A,Natt MA,Evans CS

更新日期：1996-05-01 00:00:00

abstract：:The extracellular and surface polysaccharides produced by Rhizobium species constitute a composite macromolecular interface between the bacterial cell and its environment. Several of these polysaccharides are involved in the complex series of interactions leading to the establishment of an effective Rhizobium-legume s...

journal_title：World journal of microbiology & biotechnology

authors： Coronado C,Sánchez-Andújar B,Palomares AJ

更新日期：1996-03-01 00:00:00

abstract：:At 5 g/l, ferulic acid, a plant cell-wall phenolic, severely repressed growth of the lignocellulose-degrading fungi Trichoderma harzianum, Chaetomium cellulolyticum, Phanaerochaete chrysosporium, Trametes versicolor and Pleurotus sajor-caju. At 0.5 g/l, howerver, it slightly stimulated growth of the latter two organis...

journal_title：World journal of microbiology & biotechnology

authors： Asiegbu FO,Paterson A,Smith JE

更新日期：1996-01-01 00:00:00

abstract：:Two Clostridium thermocellum strains were improved for ethanol tolerance, to 5% (v/v), by gradual adaptation and mutation. The best mutant gave an ethanol yield of 0.37 g/g substrate, with a growth yield 1.5 times more than its parent. Accumulation of acids and reducing sugars by the mutant strain with 5% (v/v) ethano...

journal_title：World journal of microbiology & biotechnology

authors： Rani KS,Swamy MV,Sunitha D,Haritha D,Seenayya G

更新日期：1996-01-01 00:00:00

abstract：:In surface cultures of Streptomyces cyaneus var. viridochromogenes, NaCl depressed water activity (a w) without supporting growth. Reducing a w from 0.987 to 0.951 led to 3- and 4-fold increases in intracellular and extracellular phenol oxidase activities, respectively. ...

journal_title：World journal of microbiology & biotechnology

authors： Berrocal M,Huerta S,Rodríguez J,Pérez-Leblic M,Arias ME

更新日期：1996-01-01 00:00:00

abstract：:A laboratory upflow anaerobic sludge blanket reactor, seeded with fine, suspended, bacterial floc with 1.76 g volatile suspended solids/l, was used to treat synthetic methanolic waste. After 180 days of continuous peration, granular sludge with discrete granules of 1 to 2 mm diam. was formed, with 52 g volatile suspen...

journal_title：World journal of microbiology & biotechnology

authors： Bhatti ZI,Furukawa K,Fujita M

更新日期：1995-11-01 00:00:00

abstract：:Forty-four strains of Aspergillus, Penicillium, Fusarium, Trichoderma and Rhizopus were grown on a liquid medium containing glucose and cassava-root extract. All of the Aspergillus and Fusarium strains, eight out of 10 Penicillium strains and three of seven Trichoderma strains showed linamarase activity. No such activ...

journal_title：World journal of microbiology & biotechnology

authors： Yeoh HH,Tan TK,Loh CM

更新日期：1995-11-01 00:00:00

abstract：:Over a 3-week period, samples of fresh, chopped, pork meat were taken every morning and afternoon from 50 meat stalls. Microbiological examination revealed that the samples had (c.f.u./g): total microbes, 1×10(3) to 2.14×10(6); mean probable numbers of coliforms and Escherichia coli, 1.51×10(3) to 1.15×10(4); and yeas...

journal_title：World journal of microbiology & biotechnology

authors： O'Toole DK

更新日期：1995-11-01 00:00:00

abstract：:The mushroom Flammulina velutipes and the white-rot fungus Trametes versicolor were cultivated separately on sugarcane bagasse for 40 days. Trametes versicolor produced laccase and manganese-peroxidase activities, showing a simultaneous degradation of lignin and holocellulose. However, only phenoloxidase activity was ...

journal_title：World journal of microbiology & biotechnology

authors： Pal M,Calvo AM,Terrón MC,González AE

更新日期：1995-09-01 00:00:00

abstract：:An α-amylase from a hyper-producing strain of Bacillus (sp. E2) was stable at 70°C for 30 min but was quickly inactivated at higher temperatures. In the presence of 10MM Ca(2+) and starch (20% w/v), however, the enzyme was stable at 90°C for 10 min and after 30 min at 100°C still retained 26% of its initial activity. ...

journal_title：World journal of microbiology & biotechnology

authors： Goyal N,Sidhu GS,Chakrabarti T,Gupta JK

更新日期：1995-09-01 00:00:00

abstract：:The phenoloxidase (POx) activities of 1059 strains and species of micromycetes were determined on malt/agar medium. Overall, 600 (57%) of the isolates produced one or more POx. The sensitivity and specificity of the POx activities towards various substrates were used to group the isolates. Some 187 strains (31% of tho...

journal_title：World journal of microbiology & biotechnology

authors： Rahouti M,Benoit-Guyod JL,Seigle-Murandi F,Guiraud P

更新日期：1995-09-01 00:00:00

abstract：:Many important food and fibre crops have attained close to their maximum yields as a result of conventional breeding approaches and advances in agronomic and horticultural practices. The manipulation of cell and tissue cultures to produce somatic embryos efficiently is one of the keystones of the new technologies that...

journal_title：World journal of microbiology & biotechnology

authors： Litz RE,Gray DJ

更新日期：1995-07-01 00:00:00

abstract：:Unsheared DNA has been isolated from Rhodotorula and Rhodosporidium yeasts using a cell-wall-digesting enzyme preparation from Paecilomyces lilacinus. Pulsed-field gel electrophoresis indicated that at least 11 chromosomes were present in Rhodot. gracilis ATCC 90950. The DNA was amenable to digestion with restriction ...

journal_title：World journal of microbiology & biotechnology

authors： Vishnuvardhan D,Joseph R

更新日期：1995-05-01 00:00:00

abstract：:Of three molecular forms of polygalacturonases synthesized by Aspergillus alliaceus on glucose media, two were exopolygalacturonases (exoPG1 and exoPG2) and one was an endopolygalacturonase (endoPG). Low-methoxylated beet pectin was the preferred substrate for the endoPG and exoPG2 whereas pectic acid was the optimal ...

journal_title：World journal of microbiology & biotechnology

authors： Mikhailova RV,Sapunova LI,Lobanok AG

更新日期：1995-05-01 00:00:00

abstract：:Progesterone was completely hydroxylated, principally to 11β,14α dihydroxyprogesterone by Cunninghamella blakesleeana NCIM 687 in 48h. ...

journal_title：World journal of microbiology & biotechnology

authors： Chincholkar SB,Seeta Laxman R,Wakharkar RD

更新日期：1995-05-01 00:00:00

abstract：:A mixed culture of a chlorobenzoate-(3-CBA)-degradingPseudomonas aeruginosa, strain 3mT, and a phenol/cresols-degradingPseudomonas sp., strain CP4, simultaneously and efficiently degraded mixtures of 3-CBA and phenol/cresols. However, strains 3mT and CP4 usedortho- andmeta-ring cleavage pathways, respectively. Degrada...

journal_title：World journal of microbiology & biotechnology

authors： Babu KS,Ajith-Kumar PV,Kunhi AA

更新日期：1995-03-01 00:00:00

abstract：:In appropriate environments containing 2-monochloropropionic acid (2MCPA), mutations in a population of nondehalogenatingPseudomonas putida, strain PP40-040 (parent population), resulted in the formation of 2mcpa(+) papillae as a result of the decryptification of adehII gene. Increasing the size of the parent populati...

journal_title：World journal of microbiology & biotechnology

authors： Slater JH,Hope SJ

更新日期：1995-03-01 00:00:00

abstract：:Activity of α-L-arabinofuranosidae (EC 3.2.1.55) ranged between 0.03 and 1.63 U/ml whenSclerotium rolfsii was grown in a synthetic medium containing different nitrogen and carbon sources. Agricultural and forest residues such as rice straw, corn cob, groundnut husk, and apple pomace were suitable substrates for enzyme...

journal_title：World journal of microbiology & biotechnology

authors： Chinnathambi S,Lachke AH

更新日期：1995-03-01 00:00:00

abstract：:Hyperthermophiles are characterized by a temperature optimum for growth between 80 and 110°C. They are considered to represent the most ancient phenotype of living organisms and thus their metabolic design might reflect the situation at an early stage of evolution. Their modes of metabolism are diverse and include che...

journal_title：World journal of microbiology & biotechnology

authors： Schönheit P,Schäfer T

更新日期：1995-01-01 00:00:00

abstract：:Tween 80 (0.1%, v/v) added to Thermomonospora curvata growing in minimal medium caused a transient lowering of the dry cell mass, decreased the optimal growth temperature of the thermophile from 62 to 54°C, and increased extracellular esterase activity. Cells grown in the presence of Tween 80 had decreased concentrati...

journal_title：World journal of microbiology & biotechnology

authors： Thies E,Jenkins T,Stutzenberger F

更新日期：1994-11-01 00:00:00

abstract：:A mutant of Bacillus subtilis AF 1 (an antifungal strain with plant growth-promoting activity, resistant to 100 μg streptomycin/ml) was isolated from pigeon pea rhizosphere and, when used in peanut bacterization, decreased fungal and bacterial numbers and increased the actinomycete population in the rhizosphere. Over ...

journal_title：World journal of microbiology & biotechnology

authors： Podile AR

更新日期：1994-11-01 00:00:00

abstract：:Hydroxy long-chain fatty acids occur widely in animals and plants and have important physiological activities in these eukaryotes. There are indications that these compounds are also common and important in fungi. The occurrence of hydroxy-polyunsaturated fatty acids (hydroxy-PUFAs) is of biotechnological importance, ...

journal_title：World journal of microbiology & biotechnology

authors： Van Dyk MS,Kock JL,Botha A

更新日期：1994-09-01 00:00:00

abstract：:Shewanella colwelliana, a marine bacterium isolated in association with the oyster Crassostrea virginica, produces an abundant exopolysaccharide with potential commercial value as an adhesive under aqueous conditions. Its utilization of glucose was modulated by stoichiometric concentrations of yeast extract. In Brain ...

journal_title：World journal of microbiology & biotechnology

authors： Abu GO,Weiner R,Colwell RR

更新日期：1994-09-01 00:00:00

abstract：:A chromosomal gene, required for nodule development on Phaseolus bean, was characterized from Rhizobium etli strain TAL182. MLC640 is a Tn5 insertion mutant of TAL182 which shows decreased motility in soft TY agar and is defective in nodule development. The site of Tn5 insertion in MLC640 mapped to a 3.6-kb EcoRI chro...

journal_title：World journal of microbiology & biotechnology

authors： Pooyan S,George ML,Borthakur D

更新日期：1994-09-01 00:00:00

abstract：:Grain yields of the rice cultivar 'Prakash' were improved upon inoculation with Glomus intraradices and G. fasciculatum, by 11% and 8%, respectively, compared with an uninoculated control. The results indicate that the amount of phosphate fertilizer usually applied to rice may be decreased by 50%, without affecting yi...

journal_title：World journal of microbiology & biotechnology

authors： Secilia J,Bagyaraj DJ

更新日期：1994-07-01 00:00:00

abstract：:Aureobasidium pullulans NRRL 6220 synthesized polysaccharide most actively in media containing sucrose, fructose or maltose with (NH4)2SO4 (0.6 g/l) or ammonium acetate giving greatest yields of the polysaccharide. With (NH4)2SO4 at ≥1.2 g/l, production of polysaccharide was decreased considerably. Polysaccharide prod...

journal_title：World journal of microbiology & biotechnology

authors： Badr-Eldin SM,El-Tayeb OM,El-Masry HG,Mohamad FH,El-Rahman OA

更新日期：1994-07-01 00:00:00

abstract：:Purified cell walls from Bacillus subtilis were repeatedly suspended in 5 mM CuCl2 and, after removing unbound Cu, were suspended in 1% (v/v) HNO3 to release bound Cu. The walls were then regenerated by washing in H2O. After five cycles, copper binding actually increased slightly, probably due to enhanced exposure of ...

journal_title：World journal of microbiology & biotechnology

authors： McLean RJ,Campbell AM,Khu PT,Persaud AT,Bickerton LE,Beauchemin D

更新日期：1994-07-01 00:00:00

abstract：:Co-culture of Lactobacillus brevis subsp. lindneri or L. plantarum with Saccharomyces cerevisiae or S. exiguus from sourdough did not modify the yield of the yeasts but gave higher growth rates and final yields of both lactic acid bacteria (LAB) than in their respective mono-cultures. Co-cultures of L. brevis subsp. l...

journal_title：World journal of microbiology & biotechnology

authors： Gobbetti M,Corsetti A,Rossi J

更新日期：1994-05-01 00:00:00

abstract：:Rice bran was superior to other proteinaceous substrates for protease production by Rhizopus oligosporus ACM 145F in solid-state fermentation. Maximum protease yield was after 72 h. The optimal initial moisture content was 47% (a w=0.97). Dried, ground and resuspended fermented rice was the most pratical and effective...

journal_title：World journal of microbiology & biotechnology

authors： Ikasari L,Mitchell DA

更新日期：1994-05-01 00:00:00

abstract：:Bacillus coagulans, when grown on casein at 20°C, produced an inducible, metalloprotease of 28 kDa at 1.6 U/mg cell protein. (NH4)2SO4 at 2 g/l decreased enzyme production irrespective of carbon source. ...

journal_title：World journal of microbiology & biotechnology

authors： Ram MS,Singh L,Alam SI,Aggarwal MK

更新日期：1994-05-01 00:00:00