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 the best characterized σ (70)-dependent promoters, which exhibit-10 regions rich in As and Ts and non-conserved-35 regions. The DNA binding motif recognized by the respective positive regulators lies between-40 and-80. Another set of positively controlled promoters exhibit upstream activator sequences located between-100 and-500. Transcription stimulation from some of these promoters also involves σ (54) and/or IHF protein. In this class of promoters, DNA binding is required to establish open complexes. Promoters for the utilization of histidine (hut) are under negative control by the HutC protein. hut promoters exhibit-10/-35 consensus regions and an overlapping operator sequence between-15 and-50. Repression of hut promoters seems to be achieved through steric hindrance of RNA polymerase. Another set of promoters are controlled by catabolite repression, which seems to be cyclic-AMP independent.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Ramos JL,Marqués Sdoi
10.1007/BF00328031subject
Has Abstractpub_date
1993-07-01 00:00:00pages
433-43issue
4eissn
0959-3993issn
1573-0972journal_volume
9pub_type
杂志文章abstract：:This paper aims to characterize halophilic bacteria inhabiting Algerian Saline Ecosystems (Sebkha and Chott) located in arid and semi-arid ecoclimate zones (Northeastern Algeria). In addition, screening of enzymatic activities, heavy metal tolerance and antagonistic potential against phytopathogenic fungi were tested....
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2705-y
更新日期：2019-08-20 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
pub_type： 杂志文章
doi：10.1007/BF00360920
更新日期：1996-05-01 00:00:00
abstract：:In the present study, the biosynthesis of silver nanoparticles (AgNPs) using Neurospora intermedia, as a new non-pathogenic fungus was investigated. For determination of biomass harvesting time, the effect of fungal incubation period on nanoparticle formation was investigated using UV-visible spectroscopy. Then, AgNPs...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1417-y
更新日期：2014-02-01 00:00:00
abstract：:Biosurfactant production through a fermentation process involving the biodegradation of soybean oil refining wastes was studied. Pseudomonas aeruginosa MR01 was able to produce extracellular biosurfactant when it was cultured in three soybean oil refinement wastes; acid oil, deodorizer distillate and soapstock, at dif...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1267-7
更新日期：2013-06-01 00:00:00
abstract：:Anabaena doliolum grown under molybdenum deficiency produced less biomass (on a dry wt basis) and the cells had lower protein content but higher carbohydrate content than Mo-grown material. Molybdenum deficiency led to a slight decrease in chlorophyll a, a 1.5-fold increase in carotenoids and a 1.4-fold increase in to...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00386284
更新日期：1993-09-01 00:00:00
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
pub_type： 杂志文章,评审
doi：10.1007/s11274-020-02901-7
更新日期：2020-07-18 00:00:00
abstract：:Municipal wastewater treatment plants (WWTPs) may serve as a reservoir for potentially pathogenic and antibiotic resistant bacteria. The discharge of improperly treated wastewater effluent may lead to the spread of these bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) which is responsible for ca...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2715-9
更新日期：2019-08-28 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
pub_type： 杂志文章
doi：10.1007/BF00364677
更新日期：1996-03-01 00:00:00
abstract：:Silver nanoparticles (SNPs) are extensively used in many industrial and medical applications; however, the impact of their release in the environment is still considered an understudied field. In the present work, SNPs present in aqueous lab waste water (average size of 30 nm) were used to determine their impact on mi...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1597-0
更新日期：2014-06-01 00:00:00
abstract：:Propionate is a common metabolic intermediate occurring in environmental samples including petroleum reservoirs. Available microbial genomes were obtained from the NCBI database and analyzed in silico by hmmscan to check three metabolic pathways of propionate production in petroleum reservoir systems. The succinate pa...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2350-2
更新日期：2017-09-23 00:00:00
abstract：:Ginger (Zingiber officinale) is cultivated commercially in most parts of the world especially in India for its culinary and medicinal applications. One of the major challenges that limit the yield of ginger is rhizome rot disease caused by organisms including Pythium myriotylum. A feasible ecofriendly method is yet to...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1582-z
更新日期：2014-05-01 00:00:00
abstract：:The search for new microbial strains that are able to withstand inhibitors released from hemicellulosic hydrolysis and are also still able to convert sugars in ethanol/xylitol is highly desirable. A yeast strain isolated from sugarcane juice and identified as Meyerozyma guilliermondii was evaluated for the ability to ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-016-2036-1
更新日期：2016-05-01 00:00:00
abstract：:Experiments were conducted to evaluate the efficacy of calliterpenone, a natural plant growth promoter from a shrub Callicarpa macrophylla Vahl., in enhancing the growth and yield promoting effects of plant growth promoting rhizobacteria (PGPRs), in menthol mint (Mentha arvensis L).This study is based on our previous ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-012-1238-4
更新日期：2013-05-01 00:00:00
abstract：:Laccase enzymes produced by both soil bacteria and fungi play important roles in refractory organic matter turnover in terrestrial ecosystems. We investigated the abundance and diversity of fungal laccase genes and bacterial laccase-like genes in soil from subtropical arable lands, and identified which microbial group...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-015-1944-9
更新日期：2015-12-01 00:00:00
abstract：:Two new products: 9,10-seco-1,3,5(10)-pregnatrien-3,17 a-dihydroxy-9,20-dione and 9,10-seco-1,3,5(10)-pregnatrien-3,17a,20-triol-9-one, have been isolated as 17 α-hydroxyprogesterone transformation products fromNocardia DSM 43298. The structures were established by spectroscopic methods. ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00656517
更新日期：1993-01-01 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
pub_type： 杂志文章
doi：10.1007/BF00419463
更新日期：1996-09-01 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
pub_type： 杂志文章
doi：10.1007/s11274-013-1483-1
更新日期：2014-03-01 00:00:00
abstract：:This study aimed to inhibit the growth of Escherichia coli and Clostridium tyrobutyricum, common bacteria responsible for early and late cheese blowing defects respectively, by using novel aqueous extracts obtained by dynamic solid-liquid extraction and essential oils obtained by solvent free microwave extraction from...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1280-x
更新日期：2013-07-01 00:00:00
abstract：:Wetland degradation makes significant impacts on soil, and bacterial communities in soil are likely to respond to these impacts. The purpose of this study was to investigate the impacts of soil property, soil type and soil depth on bacterial community in different stages of soil degradation in the Zoige Wetland. Micro...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-011-0858-4
更新日期：2012-02-01 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
pub_type： 杂志文章
doi：10.1007/BF00327792
更新日期：1996-01-01 00:00:00
abstract：:In the present work, novel heterotrophic nitrifying and aerobic denitrifying bacteria have been isolated from greenwater system of coastal aquaculture. Based on the 16S rRNA gene, FAME analysis and biochemical test, the isolates have been identified as Pseudomonas aeruginosa and Achromobacter sp. These have been named...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1543-6
更新日期：2014-04-01 00:00:00
abstract：:Listeria monocytogenes is a particular risk for the ready-to-eat food sector because of its ability to grow in various environmental conditions. In the literature, growth and survival of L. monocytogenes on food is tested using inoculation densities ranging from less than 102 to over 105 CFU g-1. Inoculation densities...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2379-2
更新日期：2017-11-27 00:00:00
abstract：:Gamma-aminobutyric acid (GABA) is a four-carbon non-protein amino acid that is widely distributed among various organisms. Since GABA has several well-known physiological functions, such as mediating neurotransmission and hypotensive activity, as well as having tranquilizer effects, it is commonly used as a bioactive ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-017-2234-5
更新日期：2017-03-01 00:00:00
abstract：:Helicobacter pylori has high global infection rates and can cause other undesirable clinical manifestations such as duodenal ulcer (DU) and gastric cancer (GC). Frequencies of re-infection after therapeutic clearance and rates of DU versus GC vary geographically and differ markedly between developed and developing cou...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-011-0984-z
更新日期：2012-05-01 00:00:00
abstract：:Yeasts and yeast-like organisms were chosen for the aerobic treatment of cassava starch factory effluent. A mixed culture of Candida utills and Endomycopsis fibuliger efficiently and rapidly utilized both starch and free sugars. After 28 h fermentation the protein content of the biomass was 22% (w/w), which remained u...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00328988
更新日期：1991-03-01 00:00:00
abstract：:This work reports the production of MEL-A using coconut water as the carbon source. Proximate analysis of coconut water indicated the presence of nutrients necessary for growth of the organism and production of desired metabolite. The amount of MEL produced using coconut water was 3.85 g/L (± 0.35) with 74% of it bein...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-020-02857-8
更新日期：2020-06-05 00:00:00
abstract：:Carbapenem-resistant Enterobacteriaceae isolates by carbapenemase production are being reported globally with increasing frequency, leading to limited therapeutic options. We therefore developed a loop-mediated isothermal amplification method with hydroxynaphthol blue dye (LAMP-HNB) for rapid confirmation of bla NDM, ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2295-5
更新日期：2017-07-01 00:00:00
abstract：:Biomineralization is a process by which living organisms produce minerals. The extracellular production of these biominerals by microbes has potential for various bioengineering applications. For example, crack remediation and improvement of durability of concrete is an important goal for engineers and biomineral-prod...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-015-1948-5
更新日期：2015-12-01 00:00:00
abstract：:An efficient expression-secretion system for heterologous protein production in food-grade hosts, Lactobacillus plantarum and Bacillus subtilis, is still required to broaden their applications. The optimal signal peptide compatible with both the desired protein and the target host is important for the system. Here, we...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-020-02932-0
更新日期：2020-09-19 00:00:00
abstract：:Polychlorinated biphenyls (PCBs) are typical lasting organic pollutants. Persistence and recalcitrance to biodegradation of PCBs have hampered the transformation of PCB congeners from the environment. Biological transformation of polychlorinated biphenyls could take place through anaerobic dechlorination, aerobic micr...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-020-02922-2
更新日期：2020-08-30 00:00:00
