Abstract:
UNLABELLED:During a screening for potential plant disease control actinomycetes, a total of 133 strains were isolated from Saharan soil samples of seven Algerian regions by dilution technique on chitin-vitamins agar medium. Screening for antagonistic properties using streak assay method showed that 25% of isolates demonstrated strong activities against a wide range of plant pathogenic fungi. Due to their strong anti-Fusarium activities, six of these isolates were selected and subsequently related to Streptomyces species by polyphasic analysis. These isolates were evaluated for their biocontrol ability against Fusarium culmorum, a serious pathogenic fungus of cereals crops related to damping-off and seedling blight resulting in yield loss. Barley seeds were chosen as cereal plant model. Surface bacterized seeds with TW3, RI3 and TW2 strains expressed the highest performances and permit to reduce significantly both the disease occurrence on seedlings (62-76%) and the extent of seedling blight symptoms (over than 95%). However, a negative effect on plant establishment was observed for RI3 treatment. SIGNIFICANCE AND IMPACT OF THE STUDY:The genus Fusarium is considered to be one of the most problematic phytopathogenic fungi for crop culture worldwide. Inside this genus, F. culmorum is the aetiological agent of seedling blight in various monocotyledonous plants such as barley and cause extensive yield and quality losses in humid and semi-humid regions. Biological control may be a successful alternative to chemical control, particularly with the controversy surrounding the use of the fungicides and the limited obtained results to control F. culmorum. This study highlights the effectiveness of some antagonistic Streptomyces isolated from Algerian Saharan soils to control F. culmorum by the reduction in disease occurrence and disease severity suggesting their use on microbial biocontrol formulation against soilborne diseases.
journal_name
Lett Appl Microbioljournal_title
Letters in applied microbiologyauthors
Yekkour A,Sabaou N,Zitouni A,Errakhi R,Mathieu F,Lebrihi Adoi
10.1111/j.1472-765x.2012.03312.xsubject
Has Abstractpub_date
2012-12-01 00:00:00pages
427-35issue
6eissn
0266-8254issn
1472-765Xjournal_volume
55pub_type
杂志文章abstract:AIMS:To elucidate the molecular mechanisms associated with mycoparasitism from Chaetomium cupreum, an effective biocontrol agent with ability against plant pathogenic fungi. METHODS AND RESULTS:One cDNA library was constructed from conditions predicted to resemble mycoparasitic process. A total of 1876 ESTs were gener...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2008.02487.x
更新日期:2009-03-01 00:00:00
abstract:AIMS:To evaluate the accuracy of pyrosequencing for the description of Phytophthora communities in terms of taxa identification and risk of assignment for false Molecular Operational Taxonomic Units (MOTUs). METHODS AND RESULTS:Pyrosequencing of Internal Transcribed Spacer 1 (ITS1) amplicons was used to describe the s...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.2012.03310.x
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abstract:AIMS:To measure rates of release of small molecules during pressure germination of Bacillus subtilis spores, and the role of SpoVA proteins in dipicolinic acid (DPA) release. METHODS AND RESULTS:Rates of DPA release during B. subtilis spore germination with pressures of 150 or 500 megaPascals were much higher in spore...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2007.02204.x
更新日期:2007-09-01 00:00:00
abstract:AIMS:To evaluate the in vitro bactericidal activity of the novel antimicrobial peptide (AP) CECT7121 against Gram-positive bacteria from mastitic dairy cattle. METHODS AND RESULTS:A total of 15 Staphylococcus aureus, 10 Streptococcus dysgalactiae, 7 Strep. uberis, 1 Strep. agalactiae strains were isolated from 33 diff...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2008.02507.x
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abstract::A lead-resistant bacteria isolated from soil contaminated with car battery waste were identified as Providencia alcalifaciens based on biochemical characteristics, FAME profile and 16S rRNA sequencing and designated as strain 2EA. It resists lead nitrate up to 0·0014 mol l(-1) by precipitating soluble lead as insolubl...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12026
更新日期:2013-02-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2008.02367.x
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12871
更新日期:2018-05-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1993.tb01415.x
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12061
更新日期:2013-06-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2011.03191.x
更新日期:2012-03-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1997.tb00014.x
更新日期:1997-12-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12630
更新日期:2016-11-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2009.02655.x
更新日期:2009-08-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2005.01682.x
更新日期:2005-01-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2005.01710.x
更新日期:2005-01-01 00:00:00
abstract::The present study demonstrates the siderophore production of two strains of Pseudomonas fluorescens and two of Ps. chlororaphis. The antimicrobial activities of these strains were studied against Salmonella typhimurium, Staphylococcus aureus, Fusarium culmorum, F. oxysporum and Aspergillus niger. Despite equal siderop...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1996.tb01146.x
更新日期:1996-03-01 00:00:00
abstract:AIMS: We evaluated risks associated with diaper changing in Finnish kindergartens where children were using either modern disposable paper or reusable cloth diapers. METHODS AND RESULTS: We determined enteric micro-organisms and ammonia in diaper-changing rooms in four kindergartens in autumn and winter in the ambie...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2012.03230.x
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2002.01168.x
更新日期:2002-01-01 00:00:00
abstract:AIMS:To propose a universal workflow of sample preparation method for the identification of highly pathogenic bacteria by MALDI-TOF MS. METHODS AND RESULTS:Fifteen bacterial species, including highly virulent Gram-positive (Bacillus anthracis and Clostridium botulinum) and Gram-negative bacteria (Brucella melitensis, ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2012.03255.x
更新日期:2012-07-01 00:00:00
abstract::Nineteen strains of vancomycin-resistant Enterococcus faecium isolated from 10 of 75 (13.3%) tenderloin beef samples were examined for resistance to selected antibiotics, presence of plasmids, and genetic diversity by random amplification of polymorphic DNA analysis. All strains showed multiple resistant to the antibi...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1365-2672.1999.00598.x
更新日期:1999-08-01 00:00:00
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journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.2003.01452.x
更新日期:2004-01-01 00:00:00
abstract:AIMS:To compare a range of enrichment broths and enrichment temperatures for the isolation of Escherichia coli O157 by immunomagnetic separation (IMS) from sandy, loam and clay soils. METHODS AND RESULTS:Soils were spiked with cocktails of four atoxigenic strains of E. coli O157 and four strains of commensal E. coli. ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1046/j.1472-765x.2002.01098.x
更新日期:2002-01-01 00:00:00
abstract::From a genomic library of Mycoplasma hyopneumoniae a 1.3 kb DNA fragment was cloned which showed specific Southern hybridization and dot hybridization with the type strain of several porcine and bovine Mycoplasma species. This probe selectively recognized M. hyopneumoniae sequences in purified DNA or in broth-grown or...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1991.tb00551.x
更新日期:1991-06-01 00:00:00
abstract:UNLABELLED:The probiotic Arthrobacter sp. CW9 isolated from guts of white shrimp (Penaeus vannamei) was used to improve the survival rate, growth rate and immune status of white shrimp (P. vannamei). Arthrobacter sp. CW9 was added to the saline rearing water at 0, 10(5), 10(6) and 10(7) CFU ml(-1) once every 5 days dur...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.12156
更新日期:2014-01-01 00:00:00
abstract:AIMS:The aim of this study was to explore the occurrence of methicillin-resistant staphylococci in a large urban public transport system. METHODS AND RESULTS:Samples were taken from hand rails, which passengers hold onto when they are standing. In total, 1400 swabs taken from 55 vehicles (trolleybuses, trams and buses...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.2008.02436.x
更新日期:2008-10-01 00:00:00
abstract:AIMS:To assess the ability of staphylococcal bacteriophage K to inhibit Staphylococcus aureus in raw milk. METHODS AND RESULTS:The ability of bacteriophage (phage) to replicate in milk is important in situations where phage might be used as a therapeutic for bovine mastitis. Phage K was able to replicate normally, lea...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2005.01762.x
更新日期:2005-01-01 00:00:00
abstract::Coliphages and enteroviruses were monitored over 12 months in sewage and air adjacent to an activated sludge plant. Both showed temporal variation but the mean count of phages in enterovirus-positive samples was not significantly different from that in enterovirus-negative samples. Hence coliphages are not necessarily...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765x.1995.tb01042.x
更新日期:1995-09-01 00:00:00
abstract:AIMS:Strains of Clostridium butyricum have been increasingly used as probiotics for both animals and humans. The aim of this study was to develop a growth medium for cultivating C. butyricum ZJUCB using a statistical methodology. METHODS AND RESULTS:Response surface methodology (RSM) was used to evaluate the effects o...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/j.1472-765X.2004.01595.x
更新日期:2004-01-01 00:00:00
abstract::The present study aimed to investigate the incidence, virulence and antibiotic properties in Vibrio spp. isolated from cockles (Tegillarca granosa) marketed in Korea. A total of 32 Vibrio spp. isolates including V. parahaemolyticus (n = 4), V. alginolyticus (n = 11), V. diabolicus (n = 14) and V. harveyi (n = 3) were ...
journal_title:Letters in applied microbiology
pub_type: 杂志文章
doi:10.1111/lam.13232
更新日期:2020-07-01 00:00:00