Abstract:
:The experiment was conducted in three model drinking water distribution systems (DWDSs) made of unplasticized polyvinyl chloride (PVC), silane cross-linked polyethylene (PEX) and high density polyethylene (HDPE) pipes to which tap water was introduced. After 2 years of system operation, microbial communities in the DWDSs were characterized with scanning electron microscopy, heterotrophic plate count, and denaturing gradient gel electrophoresis. The most extensive biofilms were found in HDPE pipes where bacteria were either attached to mineral deposits or immersed in exopolymers. On PEX surfaces, bacteria did not form large aggregates; however, they were present in the highest number (1.24 × 10(7) cells cm(-2)). PVC biofilm did not contain mineral deposits but was made of single cells with a high abundance of Pseudomonas aeruginosa, which can be harmful to human health. The members of Proteobacteria and Bacteroidetes were found in all biofilms and the water phase. Sphingomonadales and Methylophilaceae bacteria were found only in PEX samples, whereas Geothrix fermentans, which can reduce Fe(III), were identified only in PEX biofilm. The DNA sequences closely related to the members of Alphaproteobacteria were the most characteristic and intense amplicons detected in the HDPE biofilm.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Rożej A,Cydzik-Kwiatkowska A,Kowalska B,Kowalski Ddoi
10.1007/s11274-014-1761-6subject
Has Abstractpub_date
2015-01-01 00:00:00pages
37-47issue
1eissn
0959-3993issn
1573-0972journal_volume
31pub_type
杂志文章abstract::The objectives of this study were firstly, to determine the genetic diversity of Monilinia laxa isolates from Hungary, using the PCR-based inter-simple sequence repeat (ISSR) and randomly amplified polymorphic DNA (RAPD) technique; secondly, to prepare genetic diversity groups based on the dendrograms; and finally, to...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1613-4
更新日期:2014-06-01 00:00:00
abstract::The apsA and apsB genes encoding family M1 aminopeptidases were identified in the industrial fungus Aspergillus oryzae. The apsB was transcriptionally up-regulated up to 2.5-fold in response to the deprivation of nitrogen or carbon sources in growth media, while up-regulation of apsA was less significant. The encoded ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1074-6
更新日期:2012-08-01 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
pub_type: 杂志文章
doi:10.1007/BF00704656
更新日期:1995-03-01 00:00:00
abstract::Genome shuffling, an efficient and practical strain improvement technology via recursive protoplasts fusion, can break through the limits of species even genus to accelerate the directed evolution of microbial strains, without requiring the comprehensively cognized genetic background and operable genetic system. Hence...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-020-02936-w
更新日期:2020-09-24 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::A chemically defined medium called KGm medium was used to isolate from a sample of sea water a bacterial strain, MW3A, capable of using N-3-oxohexanoyl-L: -homoserine lactone as the sole carbon source. MW3A was clustered closely to Pseudomonas aeruginosa by 16S ribosomal DNA sequence analysis. It degraded both N-acylh...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0836-x
更新日期:2012-02-01 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
pub_type: 杂志文章
doi:10.1007/BF00144475
更新日期:1994-07-01 00:00:00
abstract::Anaerobic digestion (AD) is the most popular path of organic waste disposal. It is often used in wastewater treatment plants for excessive sludge removal. Methanogenic fermentation had usually been performed under mesophilic conditions, but in the past few years the thermophilic processes have become more popular due ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1731-z
更新日期:2014-12-01 00:00:00
abstract::The gastrointestinal microbiota plays a crucial role in the health and disease of the host through its impact on nutrition. Gut microbial composition is related to different diets, but an association of microbiota with different diets in infant has not yet been shown. In this work, we compared the fecal microbiota of ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1404-3
更新日期:2013-12-01 00:00:00
abstract::Quaternary ammonium salts (QASs) are ubiquitous in nature, being found in organisms ranging from microorganisms to vertebrates (e.g., glycine betaine, carnitine) where they have important cellular functions. QASs are also obtained by chemical synthesis. These compounds, due to their diverse chemical structure (e.g. mo...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-020-02978-0
更新日期:2021-01-11 00:00:00
abstract::Drotaverine [1-(3,4-diethoxybenzylidene)-6,7-diethoxy-1,2,3,4-tetrahydroisoquinoline] hydrochloride, an antispasmodic drug derived from benzylisoquinoline was evaluated for its biodegradability using a bacterial strain Rhodococcus rhodochrous IEGM 608. The experiments were performed under aerobic conditions with rhodo...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1110-6
更新日期:2012-10-01 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::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
pub_type: 杂志文章
doi:10.1007/BF00414882
更新日期:1994-05-01 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
pub_type: 杂志文章
doi:10.1007/BF00367673
更新日期:1994-09-01 00:00:00
abstract::The ideal vaccine is discussed under three headings. 1. The major requirements of the vaccine. This includes primarlly safety and efficacy and a number of other desirable features if the vaccine is to control a disease of global importance. These include cost, easy administration (e.g. orally), thermal stability, mult...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00328978
更新日期:1991-03-01 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::Cystic Fibrosis is a genetic disease and it affects the respiratory and digestive systems. Pseudomonas aeruginosa infections in Cystic Fibrosis are presented as the main cause for high mortality and morbidity rates. Pseudomonas aeruginosa populations can regulate their virulence gene expressions via the bacterial comm...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-016-2105-5
更新日期:2016-09-01 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
pub_type: 杂志文章
doi:10.1007/BF00360930
更新日期:1996-05-01 00:00:00
abstract::The role of S-layer proteins (SLP) on the Pb(2+) sequestrant capacity by Lactobacillus kefir CIDCA 8348 and JCM 5818 was investigated. Cultures in the stationary phase were treated with proteinase K. A dot blot assay was carried out to assess the removal of SLP. Strains with and without SLP were exposed to 0-0.5 mM Pb...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-015-1812-7
更新日期:2015-04-01 00:00:00
abstract::Higher Basidiomycota have been used in natural medicine throughout the world for centuries. One of such fungi is Fomitopsis betulina (formerly Piptoporus betulinus), which causes brown rot of birch wood. Annual white to brownish fruiting bodies of the species can be found on trees in the northern hemisphere but F. bet...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-017-2247-0
更新日期:2017-05-01 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::Prebiotic Fructooligosaccharides (FOS) escape metabolism in upper GI tract undergo microbial metabolism in colon and thereby influence the nature, type and number of intestinal microbiota to improve host's health. The present study focuses on the ability of Lactobacillus plantarum CFR 2194 to utilize FOS as a selectiv...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0887-z
更新日期:2012-03-01 00:00:00
abstract::The co-culture of cellulolytic moulds and yeasts on apple pomace in solid-state fermentation (SSF) and liquid-state fermentation (LSF) increased the protein content of apple pomace. The co-culture of Candida utilis and Aspergillus niger was the best among several combinations and increased the protein content of dried...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00357577
更新日期:1994-01-01 00:00:00
abstract::We characterised the anti-Vibrio parahaemolyticus (anti-V. parahaemolyticus) marine bacteria DIT09, DIT44 and DIT46 isolated from the intertidal mussel Perumytilus purpuratus. The 16S rRNA gene sequences identify a Pseudoalteromonas sp. that form a clade with P. prydzensis and P. mariniglutinosa. The strains produced ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1044-z
更新日期:2012-06-01 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
pub_type: 杂志文章
doi:10.1007/BF00327812
更新日期:1996-01-01 00:00:00
abstract::We describe a novel method for the real-time estimation of the accretion of blomass during the solid-substrate tempe fermentation of soy beans, lupins and quinoa by Rhizopus oligosporus Salto. The method is based on measurements of the dielectric permittivity at radio-frequencies, using a four-terminal instrument (the...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00328998
更新日期:1991-03-01 00:00:00
abstract::The Cochliobolus genus consist of over 55 species among which the 5 most devastating are Cochliobolus carbonum, Cochliobolus heterostrophus, Cochliobolus miyabeanus, Crocus sativus and Cochliobolus lunatus causing damages in sorghum, wheat, rice, maize, cassava and soybean estimated at over 10 billion USD per annum wo...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-018-2569-6
更新日期:2018-12-01 00:00:00
abstract::Oxalic acid plays major role in the pathogenesis by Sclerotinia sclerotiorum; it lowers the pH of nearby environment and creates the favorable condition for the infection. In this study we examined the degradation of oxalic acid through oxalate oxidase and biocontrol of Sclerotinia sclerotiorum. A survey was conducted...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1130-2
更新日期:2012-11-01 00:00:00
abstract::White rot fungi are well known for their ability to degrade xenobiotics in pure cultures but few studies focus on their performance under bacterial stress in real wastewaters. This study investigated mutual interactions in co-cultures of Pleurotus ostreatus and activated sludge microbes in batch reactors and different...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-016-2050-3
更新日期:2016-06-01 00:00:00
abstract::Tomato (Lycopersicon esculentum) is important widely grown vegetable in India and its productivity is affected by bacterial wilt disease infection caused by Ralstonia solanacearum. To prevent this disease infection a study was conducted to isolate and screen effective plant growth promoting rhizobacteria (PGPR) antago...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0975-0
更新日期:2012-04-01 00:00:00