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. A total of 74 bacterial isolates were screened and phylogenetically characterized using 16S rRNA gene sequencing. The results showed a heterogeneous group of microorganisms falling within two major phyla, 52 strains belonging to Firmicutes (70.2%) and 22 strains (30.8%) of γ-Proteobacteria. In terms of main genera present, the isolates were belonging to Bacillus, Halobacillus, Lentibacillus, Oceanobacillus, Paraliobacillus, Planomicrobium, Salicola, Terribacillus, Thalassobacillus, Salibacterium, Salinicoccus, Virgibacillus, Halomonas, Halovibrio, and Idiomarina. Most of the enzymes producers were related to Bacillus, Halobacillus, and Virgibacillus genera and mainly active at 10% of growing salt concentrations. Furthermore, amylase, esterase, gelatinase, and nuclease activities ranked in the first place within the common hydrolytic enzymes. Overall, the isolates showed high minimal inhibitory concentration values (MIC) for Ni2+ and Cu2+ (0.625 to 5 mM) compared to Cd2+ (0.1 to 2 mM) and Zn2+ (0.156 to 2 mM). Moreover, ten isolated strains belonging to Bacillus, Virgibacillus and Halomonas genera, displayed high activity against the pathogenic fungi (Botrytis cinerea, Fusarium oxyporum, F. verticillioides and Phytophthora capsici). This study on halophilic bacteria of unexplored saline niches provides potential sources of biocatalysts and novel bioactive metabolites as well as promising candidates of biocontrol agents and eco-friendly tools for heavy metal bioremediation.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Menasria T,Monteoliva-Sánchez M,Benammar L,Benhadj M,Ayachi A,Hacène H,Gonzalez-Paredes A,Aguilera Mdoi
10.1007/s11274-019-2705-ysubject
Has Abstractpub_date
2019-08-20 00:00:00pages
132issue
9eissn
0959-3993issn
1573-0972pii
10.1007/s11274-019-2705-yjournal_volume
35pub_type
杂志文章abstract：:A recently described marine gliding bacterium Rapidithrix thailandica strain TISTR 1741 was isolated from biofilm specimen collected from the Andaman Sea in Thailand. Four liters fermentation broth of R. thailandica TISTR 1741 cultivated in VY/2 medium were extracted with methanol to yield a novel amino phenyl pyrroli...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1531-x
更新日期：2014-03-01 00:00:00
abstract：:A major constraint for expanding biotechnology in developing countries is the tack of appropriate microbial strains and microbial genetic resources. The recently established Microbial Strain Data Network (MSDN) offers the opportunity of, at least partially, llfting these constraints, since even a small institutional c...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF01200928
更新日期：1990-06-01 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：: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
pub_type： 杂志文章
doi：10.1007/s11274-011-0870-8
更新日期：2012-02-01 00:00:00
abstract：:In natural environments, microorganisms form microbial aggregates called biofilms able to adhere to a multitude of different surfaces. Yeasts make no exception to this rule, being able to form biofilms in a plethora of environmental niches. In food realms, yeast biofilms may cause major problems due to their alterativ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-020-02911-5
更新日期：2020-08-10 00:00:00
abstract：:The extensive exploitation and usage of lead compounds result in severe lead(II) pollution in water and soil environments, even in agricultural land, threatening the health of animals and humans via food chains. The recovery and remediation of lead(II) from water and soil environments have been intensively concerned i...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-017-2211-z
更新日期：2017-02-01 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
pub_type： 杂志文章
doi：10.1007/BF00704646
更新日期：1995-03-01 00:00:00
abstract：:Aquilaria malaccensis produces agarwood in response to wounding and fungal attack. However, information is limited regarding Aquilaria's interaction with its diverse fungal community. In this study, time-related changes of three natural fungal colonizers in two wounded wild A. malaccensis were tracked, beginning a few...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1668-2
更新日期：2014-09-01 00:00:00
abstract：:Large patch disease, caused by Rhizoctonia solani AG2-2, is the most devastating disease in Zoysiagrass (Zoysia japonica). Current large patch disease control strategies rely primarily upon the use of chemical pesticides. Streptomyces sp. S8 is known to possess exceptional antagonistic properties that could potentiall...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2704-z
更新日期：2019-08-02 00:00:00
abstract：:The diastatic power of four 'improved' Nigerian sorghum cultivars was produced principally by α-amylolytic activity, unlike that of Nigerian Proctor barley which came principally from β-amylolytic activity. Free amino nitrogen levels and extracts of the sorghums were higher than those of barley when the sorghum was ma...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF01201881
更新日期：1992-05-01 00:00:00
abstract：:Cobamides ('complete' corrinoids) are essential for organohalide-respiring bacteria because they act as cofactors of reductive dehalogenases (RDases). RDases are the key enzymes in organohalide respiration, a process relevant for environmental remediation. More than a decade ago, the unusual norpseudo-B12 was identifi...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-017-2258-x
更新日期：2017-05-01 00:00:00
abstract：:Acetic acid is an inhibitor in industrial processes such as wine making and bioethanol production from cellulosic hydrolysate. It causes energy depletion, inhibition of metabolic enzyme activity, growth arrest and ethanol productivity losses in Saccharomyces cerevisiae. Therefore, understanding the mechanisms of the y...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-017-2259-9
更新日期：2017-05-01 00:00:00
abstract：:Heavy-metal chromium [Cr(VI)] is a ubiquitous environmental pollutant. Comparing with chemical reduction, microbiological reduction is considered to be a friendly and cheaper way to decrease the damage caused by chromate. A bacterial strain, CR-07, which is resistant to and capable of reducing chromate was isolated fr...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-011-0962-5
更新日期：2012-04-01 00:00:00
abstract：:Cadmium ions in wastewater can be removed by biosorption on to Acinetobacter calca var. antratus, isolated from a wastewater sample from a copper refinery. There are two equillibrium states: the first, which is reached quickly, is probably direct adsorption, and the second may be due to the release of ion adsorption m...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00368363
更新日期：1991-09-01 00:00:00
abstract：:A key constraint in successfully obtaining an effective inoculant is overcoming difficulties in formulating a viable and user-friendly final product and maintaining the microbial cells in a competent state. Co-cultures of rhizobia and PGPR (Plant Growth Promoting Rhizobacteria) are a logical next subject for formulati...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-012-1062-x
更新日期：2012-07-01 00:00:00
abstract：:Alkaliphilic halotolerant cyanobacterium Aphanothece halophytica showed optimal growth in the medium containing 0.5 M NaCl. The increase of exogenously added glycine to the medium up to 10 mM significantly promoted cell growth under both normal (0.5 M NaCl) and salt stress (2.0 M NaCl) conditions. Salt stress imposed ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1790-1
更新日期：2015-02-01 00:00:00
abstract：:A nonautonomous element of 624 bp, called RetroCl1 (Retroelement Colletotrichum lindemuthianum 1), was identified in the plant pathogenic fungus Colletotrichum lindemuthianum. RetroCl1 contains terminal direct repeats (223 bp) that are surrounded by CTAGT sequences. It has a short internal domain of 178 bp and shows c...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-011-0909-x
更新日期：2012-03-01 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：:Basidiocarp of Agaricus blazei (=Agaricus brasiliensis; =Agaricus subrufescens) is used as teas or capsules due to its antineoplastic effect but there are few reports of using mycelium for this purpose. The objective of this study was to evaluate the antineoplastic activity on sarcoma 180 cells implanted in mice of tw...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1656-6
更新日期：2014-08-01 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
pub_type： 杂志文章
doi：10.1007/BF00286380
更新日期：1995-09-01 00:00:00
abstract：:The incidence of Candida infections have increased substantially in recent years due to aggressive use of immunosuppressants among patients. Use of broad-spectrum antibiotics and intravascular catheters in the intensive care unit have also attributed with high risks of candidiasis among immunocompromised patients. Amo...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-013-1574-z
更新日期：2014-05-01 00:00:00
abstract：:An important and useful bamboo species, fishscale bamboo (Phyllostachys heteroclada Oliver), is broadly distributed in Southeast China and has multiple purposes, including uses in cuisine, weaving, Chinese medicine and ecological protection. However, no previous studies have focused on the endophytes of this plant. In...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2267-9
更新日期：2017-06-01 00:00:00
abstract：:The use of indigenous bacterial strains is a valuable bioremediation strategy for cleaning the environment from hydrocarbon pollutants. The isolation and selection of hydrocarbon-degrading bacteria is therefore crucial for obtaining the most promising strains for site decontamination. Two different media, a minimal me...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1277-5
更新日期：2013-06-01 00:00:00
abstract：:The following is a Technical Information Sheet of the World Federation for Culture Collections and appears here with the permission of the WFCC's Education Committee. ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF01202132
更新日期：1990-12-01 00:00:00
abstract：:The aim of this study was to evaluate whether immobilizing a probiotic strain Lactobacillus reuteri DPC16 in chitosan-coated alginate microcapsules affected their inhibitory performance against food-borne pathogens. The probiotic strain was encapsulated in sub-100 μm alginate microspheres which were further coated wit...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-012-1046-x
更新日期：2012-06-01 00:00:00
abstract：:Cr(VI) is a highly toxic metal produced by anthropogenic activity which may impact the environment, affecting plants and animals. In plants, chromium both as Cr(III) or Cr(VI) can be absorbed by roots, is poorly translocated and affects negatively plant growth. Plants used in phytoremediation need to cope with chromiu...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2389-0
更新日期：2017-12-18 00:00:00
abstract：:An extracellular lipase producing isolate Staphylococcus sp. MS1 was optimized for lipase production and its biocatalytic potential was assessed. Medium with tributyrin (0.25 %) and without any exogenous inorganic nitrogen source was found to be optimum for lipase production from Staphylococcus sp. MS1. The optimum pH...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1715-z
更新日期：2014-11-01 00:00:00
abstract：:Nine inter-generic somatic hybrids named as pfle were produced through PEG-mediated protoplast fusion between Pleurotus florida and Lentinula edodes using double selection method. Hybridity of the newly developed strains was established on the basis of colony morphology, mycelial growth, hyphal traits, fruit-body prod...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1652-x
更新日期：2014-08-01 00:00:00
abstract：:Mangrove fungi are vastly unexplored for enzymes with industrial application. This study aimed to assess the biocatalytic activity of mangrove fungal xylanases on recycled paper pulp. Forty-four mangrove fungal (MF) isolates were initially screened for xylanolytic activity in minimal medium with corn cob xylan as the ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-012-1220-1
更新日期：2013-04-01 00:00:00
abstract：:The methylotrophic yeast Pichia pastoris is widely used in recombinant expression of eukaryotic proteins owing to the ability of post-translational modification, tightly regulated promoters, and high cell density fermentation. However, episomal plasmids for heterologous gene expression and the CRISPR/Cas9 system for g...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2654-5
更新日期：2019-05-27 00:00:00
