Two new 17 α-hydroxyprogesterone transformation products fromNocardia DSM 43298.

abstract：:The fermentation of industrial bacteria encounters a serious problem in continuous culture, i.e. the production traits lose. However, current research on the mechanism of strain degeneration is not clear enough, and there are few methods to effectively control the degeneration. Under growth restriction, the mutation r...

journal_title：World journal of microbiology & biotechnology

authors： Peng M,Liang Z

更新日期：2020-07-18 00:00:00

abstract：:The present study was conducted for optimization of in vitro substrates under aseptic conditions for interaction of Piriformospora indica with the medicinal plant Coleus forskohlii. It aims to test the effects of different substrates on P. indica colonization as well as growth parameters of the in vitro raised C. fors...

journal_title：World journal of microbiology & biotechnology

authors： Das A,Tripathi S,Varma A

更新日期：2014-03-01 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：:Screening for spore-forming bacteria to use against dipterous insects, namelyMusca domestica, Aedes aegypti andCulex pipiens from Egypt, led to two isolates, M1 and S128, being found which were highly toxic to bothAedes andCulex strains. They had calculated international Toxicity Units (ITU) valdes of 17,467 and 20,06...

journal_title：World journal of microbiology & biotechnology

authors： Abdel-Hameed A,Carlberg G,El-Tayeb OM

更新日期：1990-09-01 00:00:00

abstract：:Trichoderma harzianum produced RNA-depolymerase with maximum activity after 72 to 120 h of growth. Addition of K2HPO4 repressed enzyme production by the fungus. The optimal activity was at pH 7.8 and 40 to 50°C. The enzyme was stable at pH 3.2 to 9.0 and 80% of activity remained after 60 min at 40°C. EDTA and p-chloro...

journal_title：World journal of microbiology & biotechnology

authors： Vasileva-Tonkova ES

更新日期：1993-05-01 00:00:00

abstract：:Valsa mali var. mali (Vmm), is the predominant species of apple valsa canker in China. Modern analysis of genes involved in virulence or pathogenicity usually implicate gene expression analysis most often performed using real-time quantitative polymerase chain reaction (RT-qPCR). However, for relative gene expression ...

journal_title：World journal of microbiology & biotechnology

authors： Yin Z,Ke X,Huang D,Gao X,Voegele RT,Kang Z,Huang L

更新日期：2013-09-01 00:00:00

abstract：:Soaking seeds of cucumber and pumpkin with an extract of Westiellopsis prolifica, an N2-fixing cyanobacterium, promoted germination and their subsequent growth and development. An extract of Lyngbya sp., a non-N2-fixing cyanobacterium, had no significant effect. ...

journal_title：World journal of microbiology & biotechnology

authors： Nanda B,Tripathy SK,Padhi S

更新日期：1991-11-01 00:00:00

abstract：:The biomass degrading enzymatic potential of 101 thermophilic bacterial strains isolated from a volcanic environment (Santorini, Aegean Sea, Greece) was assessed. 80 % of the strains showed xylanolytic activity in Congo Red plates, while only eight could simultaneously hydrolyze cellulose. Fifteen isolates were select...

journal_title：World journal of microbiology & biotechnology

authors： Stathopoulou PM,Galanopoulou AP,Anasontzis GE,Karagouni AD,Hatzinikolaou DG

更新日期：2012-09-01 00:00:00

abstract：:Elicitation is one of the few strategies that find commercial application in the enhancement of secondary metabolite production from plants as well as cell culture systems. Due to their immense medicinal value, production of saponins in suspension cultures has been attempted by many researchers. Gymnema sylvestre is a...

journal_title：World journal of microbiology & biotechnology

authors： Ch B,Rao K,Gandi S,Giri A

更新日期：2012-02-01 00:00:00

abstract：:Extensive usage of antibiotics has led to the emergence of drug-resistant strains of pathogens and hence, there is an urgent need for alternative antimicrobial agents. Antimicrobial Peptides (AMPs) of bacterial origin have shown the potential to replace some conventional antibiotics. In the present study, an AMP was i...

journal_title：World journal of microbiology & biotechnology

authors： Taggar R,Jangra M,Dwivedi A,Bansal K,Patil PB,Bhattacharyya MS,Nandanwar H,Sahoo DK

更新日期：2021-01-11 00:00:00

abstract：:Little is known about the role of endophytic fungi against abiotic stresses and isoflavonoids (IF) contents of soybean. In current study, we investigated the role of fungal endophytes on the growth of soybean under salt stress conditions. Pure cultures of nine endophytic fungi were isolated from the roots of field-gro...

journal_title：World journal of microbiology & biotechnology

authors： Khan AL,Hamayun M,Khan SA,Kang SM,Shinwari ZK,Kamran M,Ur Rehman S,Kim JG,Lee IJ

更新日期：2012-04-01 00:00:00

abstract：:The abundance of culturable heterotropic bacteria studied on and according to depth levels and seasons in the Gulf of Antalya. Environmental factors were compared regarding culturable heterotrophic bacteria abundance and diversities of bacteria. During the study period (between August 2009 and April 2010, seasonally i...

journal_title：World journal of microbiology & biotechnology

authors： Çardak M,Özgür Özbek E,Kebapçioğlu T

更新日期：2015-04-01 00:00:00

abstract：:Biosurfactants can be widely used in industries as pharmaceutical agents, for microbial enhanced oil recovery, crop biostimulation, among others. Surfactin and rhamnolipids are well-known biosurfactants. These compounds have several advantages over chemical surfactants, however they are not economically competitive, s...

journal_title：World journal of microbiology & biotechnology

authors： de Oliveira Schmidt VK,de Souza Carvalho J,de Oliveira D,de Andrade CJ

更新日期：2021-01-11 00:00:00

abstract：:Aspergillus oryzae aminohydrolase free acid phosphodiesterase catalyzes nicotinamide adenine dinucleotide to deamino-NAD and ammonia. The enzyme was purified to homogeneity by a combination of acetone precipitation, anion exchange chromatography and gel filtration chromatography. The enzyme was purified 230.5 fold. So...

journal_title：World journal of microbiology & biotechnology

authors： Ali TH,Ali NH,Haroun BM,Tantawy AE

更新日期：2014-03-01 00:00:00

abstract：:In a survey of endophytic fungal biodiversity, an antimicrobial endophytic isolate zjwcf069 was obtained from twigs of Forsythia viridissima, Zhejiang Province, Southeast China. Zjwcf069 was then identified as Pezicula sp. through combination of morphological and phylogenetic analysis based on ITS-rDNA. Zjwcf069 here ...

journal_title：World journal of microbiology & biotechnology

authors： Wang J,Wang G,Zhang Y,Zheng B,Zhang C,Wang L

更新日期：2014-10-01 00:00:00

abstract：:Ergosterol is the predominant nature sterol constituent of plasma membrane in Saccharomyces cerevisiae. Herein, the biosynthetic pathway of ergosterol was proposed to be metabolically engineered for the efficient production of ergosta-5,7-dien-3β-ol, which is the precursor of vitamin D4. By target disruption of erg5, ...

journal_title：World journal of microbiology & biotechnology

authors： Ma BX,Ke X,Tang XL,Zheng RC,Zheng YG

更新日期：2018-03-28 00:00:00

abstract：:We characterized the culturable, heterotrophic bacterial community in soil collected from a former alpine military site contaminated with petroleum hydrocarbons. The physiologically active eubacterial community, as revealed by fluorescence-in situ-hybridization, accounted for 14.9 % of the total (DAPI-stained) bacteri...

journal_title：World journal of microbiology & biotechnology

authors： Zhang D,Margesin R

更新日期：2014-06-01 00:00:00

abstract：:Saline wastewaters are usually generated by various industries, including the chemical, pharmaceutical, agricultural, and aquacultural industries. The discharge of untreated high-salinity wastewater may cause serious environmental pollution and damage the aquatic, terrestrial, and wetland ecosystems. For many countrie...

journal_title：World journal of microbiology & biotechnology

authors： Zhao Y,Zhuang X,Ahmad S,Sung S,Ni SQ

更新日期：2020-02-22 00:00:00

abstract：:When 50MM FeSO4 was added to cow dung and poultry litter waste which had been processed in daily-fed batch digesters, digesters subsequently unfed showed a faster conversion of substrate and overloaded digesters stabilized within 48 h. Early stabilization of digesters was achieved by adding 20 or 50MM FeSO4 though the...

journal_title：World journal of microbiology & biotechnology

authors： Preeti Rao P,Seenayya G

更新日期：1994-03-01 00:00:00

abstract：:Escherichia coli (E. coli) consists of commensal (ComEC) and diarrhoeagenic (DEC) groups. ComEC are detected using traditional culture methods. Conformational steps are performed after culturing if it is required to test for the presence of DEC, increasing cost and time in obtaining the results. The aim of this study ...

journal_title：World journal of microbiology & biotechnology

authors： Omar KB,Barnard TG

更新日期：2014-10-01 00:00:00

abstract：:As an interspecies and interkingdom signaling molecule, indole has recently received attention for its diverse effects on the physiology of both bacteria and hosts. In this study, indole increased the tetracycline resistance of Vibrio splendidus. The minimal inhibitory concentration of tetracycline was 10 μg/mL, and t...

journal_title：World journal of microbiology & biotechnology

authors： Zhang S,Shao Y,Zhao X,Li C,Guo M,Lv Z,Zhang W

更新日期：2020-02-22 00:00:00

abstract：:Dehydration of yeast cells causes them to enter a state of anhydrobiosis in which their metabolism is temporarily and reversibly suspended. This unique state among organisms is currently used in the production of active dry yeasts, mainly used in baking and winemaking. In recent decades non-conventional applications o...

journal_title：World journal of microbiology & biotechnology

authors： Rapoport A,Turchetti B,Buzzini P

更新日期：2016-06-01 00:00:00

abstract：:Cellulolytic fungi, 34 strains, were isolated from samples taken from palm oil mill residues and effluent, and high cellulase producers selected in comparison with nine known reference strains. Although 13 isolates showed good filter paper distintegration within 14 days, only eight isolates exhibited clearing zones ar...

journal_title：World journal of microbiology & biotechnology

authors： Prasertsan P,H-Kittikul A,Chitmanee B

更新日期：1992-11-01 00:00:00

abstract：:An inhibitory factor (IF) produced byAspergillus niger strain 19, and which inhibits the action of glucoamylase on starch, has the ability to be tightly adsorbed on to various raw starches, though the amount differs from starch to starch. Based on the hydrolysis of the IF-starch complex by glucoamylase, the inhibition...

journal_title：World journal of microbiology & biotechnology

authors： Towprayoon S,Fujio Y,Ueda S

更新日期：1990-12-01 00:00:00

abstract：:Bacteria are crucial components in lake sediments and play important role in various environmental processes. Urban lakes in the densely populated cities are often small, shallow, highly artificial and hypereutrophic compared to rural and natural lakes and have been overlooked for a long time. In the present study, ba...

journal_title：World journal of microbiology & biotechnology

authors： Zhao D,Huang R,Zeng J,Yan W,Wang J,Ma T,Wang M,Wu QL

更新日期：2012-11-01 00:00:00

abstract：:Species of the genus Trichoderma are economically important as biocontrol agents, serving as a potential alternative to chemical control. The applicability of Trichoderma isolates to different ecozones will depend on the behavior of the strains selected from each zone. The present study was undertaken to isolate bioco...

journal_title：World journal of microbiology & biotechnology

authors： Stocco MC,Mónaco CI,Abramoff C,Lampugnani G,Salerno G,Kripelz N,Cordo CA,Consolo VF

更新日期：2016-03-01 00:00:00

abstract：:Gene regulation studies in pseudomonad bacteria are mainly restricted to Pseudomonas aeruginosa and Pseudomonas putida. Constitutive promoters exhibit DNA sequences similar to the σ (70)-dependent constitutive promoters of Escherichia coli. The TOL meta-cleavage pathway operon promoter and the nah operon promoters are...

journal_title：World journal of microbiology & biotechnology

authors： Ramos JL,Marqués S

更新日期：1993-07-01 00:00:00

abstract：:Pesticides (Brominal, Cuprosan and Fenvalerate) at 10 and 50 ppm suppressed growth, respiration and nitrogenase activity ofAzotobacter chroococcum, Azospirillum brasilense andAzospirillum lipoferum. The inhibitory effect on respiration ofAsm. lipoferum was most pronounced after 3 and 4 days. ...

journal_title：World journal of microbiology & biotechnology

authors： Omar SA,Abd-Alla MH

更新日期：1992-05-01 00:00:00

abstract：:Microorganisms associated with fermentation ofmasa wereLactobacillus plantarum, Pediococcus acidilactici, Lactobacillus fermentum andSaccharomyces cerevisiae. During the fermentation of maize grains, the temperature and moisture increased and the pH decreased. Most amino acids decreased in concentration during ferment...

journal_title：World journal of microbiology & biotechnology

authors： Oyeyiola GP

更新日期：1990-06-01 00:00:00

abstract：CONCLUSION:The basis for science and technology in advanced nations might be considered to have come from Egypt, Babylonia, China or ancient countries. Thus, technologies belong to all peoples in the world and should be shared with all countries. The traditional brewing of sake is a truly indigenous and ancient process...

journal_title：World journal of microbiology & biotechnology

authors： Murooka Y

更新日期：1992-12-01 00:00:00