Abstract:
:Fungal dimorphism is the capacity of certain species of fungi to grow in the form of budding yeasts or mycelium depending on the environmental conditions. This characteristic is a complex phenomenon that involves modifications of the molecular machinery in response to different environmental signals. Through the use of microarrays, in this work we identified genes involved in the early stages of the yeast-to-mycelium transition of Yarrowia lipolytica induced by a shift in pH of the medium. As controls, yeast and mycelium monomorphic mutants were used, identifying by this mean a total of 61 upregulated and 165 downregulated genes specifically involved in dimorphism. Determination of the putative function of these genes was accomplished by means of BLAST analyses which showed that they were involved mainly in processes such as remodeling and biogenesis of the cell wall, membrane trafficking and N- or O-glycosylation. Some of these genes were identified by homology with Saccharomyces cerevisiae genes, and found to play a role during the dimorphic transition in both systems.
journal_name
Res Microbioljournal_title
Research in microbiologyauthors
Morales-Vargas AT,Domínguez A,Ruiz-Herrera Jdoi
10.1016/j.resmic.2012.03.002subject
Has Abstractpub_date
2012-06-01 00:00:00pages
378-87issue
5eissn
0923-2508issn
1769-7123pii
S0923-2508(12)00042-3journal_volume
163pub_type
杂志文章abstract::Staphylococcus xylosus is a commensal species commonly found on the skin of mammals, but also currently used as starter culture for meat fermentation. Most strains of this species colonize by forming a biofilm on abiotic surfaces. We show here that the majority of S. xylosus strains also exhibit extensive colony sprea...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2008.02.003
更新日期:2008-05-01 00:00:00
abstract::The understanding of biofilm formation by bioleaching microorganisms is of great importance for influencing mineral dissolution rates and to prevent acid mine drainage (AMD). Thermo-acidophilic archaea such as Acidianus, Sulfolobus and Metallosphaera are of special interest due to their ability to perform leaching at ...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2016.06.005
更新日期:2016-09-01 00:00:00
abstract::Thirty mosquitocidal strains of Bacillus sphaericus isolated from different sources and localities in Brazil were characterized phenotypically and genetically to determine their relationship. Among the strains tested, 93.3% were shown to be resistant to lincomycin, 96.6% to novobiocin, 60% to chloramphenicol and all s...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(99)80032-1
更新日期:1999-03-01 00:00:00
abstract::There is still an urgent requirement for more sensitive, cost-effective methods for detection and susceptibility testing of mycobacteria in clinical samples. We have been investigating a simple bacteriophage-based system which could be used for both purposes. As this depends upon the detection of phages which have suc...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(98)80003-x
更新日期:1998-07-01 00:00:00
abstract::There are several occasions when enumeration of Escherichia coli cells is needed. These include examination of urine specimens and water or food samples. Present methods rely on growth in more or less selective media (colony-forming units on agar or the most probable number method using liquid media). Unfortunately, n...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(00)00222-9
更新日期:2000-09-01 00:00:00
abstract::The major 25-kDa outer membrane protein (Omp25) of Brucella abortus was purified and antigenically characterized by use of monoclonal antibodies (mAbs). Purification was achieved from the sodium dodecyl sulphate-insoluble (SDS-I) cell wall (CW) fraction of vaccine strain B. abortus B19 which was shown by use of mAbs t...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/0923-2508(96)81383-0
更新日期:1996-05-01 00:00:00
abstract::Spirochetes have a unique motility system that is characterized by flagellar filaments contained within the outer membrane sheath. Direct evidence using video microscopy has recently been obtained which indicates that these periplasmic flagella (PF) rotate in several spirochetal species. This rotation generates thrust...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/0923-2508(92)90117-7
更新日期:1992-07-01 00:00:00
abstract::The structure of DspF, a type III secretion system (T3SS) chaperone required for virulence of the fruit tree pathogen Erwinia amylovora, was modeled based on predicted structural homology to characterized T3SS chaperones. This model guided the selection of 11 amino acid residues that were individually mutated to alani...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2010.05.015
更新日期:2010-09-01 00:00:00
abstract::Vegetative incompatibility limits heterokaryon formation in fungi. It results from genetic differences at specific loci (het loci). Characterization of het genes and, more recently, of incompatibility reaction suppressors has, provided insight into the mechanisms involved. A link between development, vegetative incomp...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s0923-2508(00)00145-5
更新日期:2000-05-01 00:00:00
abstract::5-Mycoloyl-beta-arabinofuranosyl-(1-->2)-5-mycoloyl-alpha-ar abinofuranosyl-(1-->1')-glycerol, an antigenic glycolipid from the Mycobacterium avium-intracellulare complex (MAC) was examined for its applicability to the serodiagnosis of MAC infection by ELISA. Serum IgM antibody titres against this glycolipid in health...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/0923-2508(93)90048-7
更新日期:1993-03-01 00:00:00
abstract::Six thermophilic extremophiles, Anoxybacillus amylolyticus, Geobacillus thermoleovorans, Geobacillus thermoleovorans subspecies stromboliensis, Geobacillus toebii subspecies decanicus, Bacillus thermantarcticus and Thermus oshimai, isolated from different environmental sites, were studied for their heavy metal resista...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2008.10.012
更新日期:2009-03-01 00:00:00
abstract::The increase in genetic variability of a population can be selected during adaptation, as demonstrated by the selection of mutator alleles. The dynamics of this phenomenon, named second-order selection, can result in an improved adaptability of bacteria through regulation of all facets of mutation and recombination pr...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s0923-2508(00)01163-3
更新日期:2001-01-01 00:00:00
abstract::The tricarballylate utilization locus (tcuRABC) of Salmonella enterica serovar Typhimurium is comprised of a 3-gene operon (tcuABC) that encodes functions that allow this bacterium to use tricarballylate as a source of carbon and energy, and the tcuR gene, which encodes a putative LysR-type transcriptional regulator. ...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2009.01.001
更新日期:2009-04-01 00:00:00
abstract::Sub-MIC antibiotics differentially modulate transcription of subsets of genes by unknown mechanisms. Paradoxically, the RNA polymerase inhibitor rifampicin is able to both upmodulate as well as downmodulate transcription when present at sub-MIC levels. In this study, we analyzed DNA sequences required for transcriptio...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2013.02.003
更新日期:2013-06-01 00:00:00
abstract::Azo dye derivatives of azobenzene constitute the largest group of dyes used in the textile industry and possess recalcitrant chemical groups, such as those of azo and sulphonic acid. Some microorganisms are able to degrade these aromatic compounds. In the present work, decolourisation of culture media containing azo d...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(02)01332-3
更新日期:2002-07-01 00:00:00
abstract::Paralytic shellfish toxins (PSTs) are sodium channel blocking (SCB) toxins, produced by cyanobacteria, as well as by marine dinoflagellates and their associated bacteria, and cause serious health and economic concern worldwide. In a previous study, approximately 70% of the bacteria enriched from PST-contaminated shell...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(02)01328-1
更新日期:2002-07-01 00:00:00
abstract::Campylobacter spp. is the most common cause of bacterial diarrhoea in humans worldwide. Therefore, rapid and reliable methods for detection and quantification of this pathogen are required. In this study, we have developed a reverse transcription quantitative real-time PCR (RT-qPCR) for detection and quantification of...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2011.10.007
更新日期:2012-01-01 00:00:00
abstract::A strain of Bacteroides fragilis, isolated from the marmoset Callithrix penicillata, produced protein(s) with bacteriocin activity (fragicilin). Two active fractions (36 and 150 kDa) were isolated by chromatography. The bacteriocin exhibited iso- and heteroantagonism. It remained stable between pH 3 and 10 and at 60 d...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/0923-2508(94)90062-0
更新日期:1994-01-01 00:00:00
abstract::Four monoclonal antibodies against chlamydial lipopolysaccharide (LPS) were used to study their localization and distribution in the Chlamydia psittaci AB7 abortion-causing strain by immunoelectron microscopy. A non-embedding technique on whole chlamydiae, together with a post-embedding technique on McCoy cells infect...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/0923-2508(94)90078-7
更新日期:1994-10-01 00:00:00
abstract::Members of the genus Cronobacter are responsible for cases of meningitis and bacteremia with high fatality rates in neonates. Macrophage uptake of invading microbes is an innate process, and it has been proposed that macrophage infectivity potentiator (Mip) like proteins enhance the ability of pathogens to survive wit...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2015.02.005
更新日期:2015-04-01 00:00:00
abstract::ATP binding cassette (ABC) systems constitute one of the most abundant superfamilies of proteins. They are involved not only in the transport of a wide variety of substances, but also in many cellular processes and in their regulation. In this paper, we made a comparative analysis of the properties of ABC systems and ...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s0923-2508(01)01194-9
更新日期:2001-04-01 00:00:00
abstract::The rRNA gene restriction patterns of 89 Vibrio cholerae O1 isolates from different geographic origins were studied. The probe was Escherichia coli 16 + 23S rRNA labelled with "ECL Gene detection system". A total of 17 rRNA gene restriction patterns were observed after BglI cleavage. Four patterns (B1 to B4) were only...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/0923-2508(90)90059-y
更新日期:1990-07-01 00:00:00
abstract::Several studies indicate Actinobacillus (Haemophilus) actinomycetemcomitans and Fusobacterium nucleatum as etiologic agents of periodontal disease. Immunosuppressive factors produced by microorganisms probably contribute to the initiation and evolution of this disease. This study evaluated the antiproliferative activi...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2004.05.008
更新日期:2004-11-01 00:00:00
abstract::Multidrug transporters and their transcriptional regulators are key components of bacterial multidrug resistance (MDR). How these multidrug binding proteins can recognize such chemically disparate compounds represents a fascinating question from a structural standpoint and an important question in future drug developm...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/S0923-2508(02)00013-X
更新日期:2003-03-01 00:00:00
abstract::OprI, a small outer membrane lipoprotein from Pseudomonas aeruginosa, can be produced in large amounts and anchored at the surface on Escherichia coli cells. A four-time repeated (His-Cys) motif was fused to the C-terminal part of OprI. After induction, E. coli cells harbouring the recombinant oprI gene became more se...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/s0923-2508(01)01263-3
更新日期:2001-11-01 00:00:00
abstract::An aerotolerant, psychrotolerant anaerobe, anNAG3, was isolated from an acidic forest floor solution (in situ pH of 4.5). Cells of anNAG3 stained Gram-positive did not form spores, and were not motile. Cells were ovoid, approximately 1 microm long and 0.7 microm wide, mostly in pairs, and contained a multi-layered cel...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2004.06.006
更新日期:2004-12-01 00:00:00
abstract::DegS and DegU make up a two component system belonging to a class of signal transduction systems that play important roles in a broad range of bacterial responses to the environment. However, little study has been done to explore the physiological functions of DegS-DegU in mosquitocidal Lysinibacillus sphaericus. In t...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2017.12.006
更新日期:2018-04-01 00:00:00
abstract::The role of protein-tyrosine kinases in bacterial polymyxin resistance was assessed by both genetic and biochemical approaches. Each of the two genes, wzc and etk, encoding protein-tyrosine kinases in Escherichia coli, was knocked out by using the PCR-based method of one-step inactivation of chromosomal genes, and the...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2006.01.003
更新日期:2006-09-01 00:00:00
abstract::Streptococcus intermedius, an oral commensal and a cause of systemic pyogenic disease, expresses fimbriae. To identify the gene(s) encoding these fimbriae, we used a serum raised against purified fimbriae to screen libaries of recombinant lambda phages. The cloned gene cluster encoding S. intermedius fimbriae, (saliva...
journal_title:Research in microbiology
pub_type: 杂志文章
doi:10.1016/j.resmic.2009.09.014
更新日期:2009-12-01 00:00:00
abstract::The present mini-review summarizes data in selected fields of basic genetics which were exclusively obtained in agreement with the principles of SOS Chromotest methodology and with Escherichia coli PQ37 sfiA::lacZ as a tester strain. ...
journal_title:Research in microbiology
pub_type: 杂志文章,评审
doi:10.1016/s0923-2508(02)01342-6
更新日期:2002-09-01 00:00:00