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  1. Article: Dual effects of a bacteriocin-producing

    Abriouel, Hikmate / Caballero Gómez, Natacha / Manetsberger, Julia / Benomar, Nabil

    Heliyon

    2024  Volume 10, Issue 7, Page(s) e28408

    Abstract: The probiotic potential ... ...

    Abstract The probiotic potential of
    Language English
    Publishing date 2024-03-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e28408
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  2. Article: Corrigendum:

    Abriouel, Hikmate / Manetsberger, Julia / Caballero Gómez, Natacha / Benomar, Nabil

    Frontiers in microbiology

    2023  Volume 14, Page(s) 1242095

    Abstract: This corrects the article DOI: 10.3389/fmicb.2022.989824.]. ...

    Abstract [This corrects the article DOI: 10.3389/fmicb.2022.989824.].
    Language English
    Publishing date 2023-06-28
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1242095
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  3. Article ; Online: Novel combination of nanoparticles and metallo-β-lactamase inhibitor/antimicrobial-based formulation to combat antibiotic resistant Enterococcus sp. and Pseudomonas sp. strains.

    Caballero Gómez, Natacha / Manetsberger, Julia / Benomar, Nabil / Abriouel, Hikmate

    International journal of biological macromolecules

    2023  Volume 248, Page(s) 125982

    Abstract: Nanotechnology presents an innovative strategy to combat the spread of antibiotic resistant bacteria and their resistance genes throughout different ecosystems. To address this challenge, nanoparticles (silver, gold, zinc and copper) alone or in ... ...

    Abstract Nanotechnology presents an innovative strategy to combat the spread of antibiotic resistant bacteria and their resistance genes throughout different ecosystems. To address this challenge, nanoparticles (silver, gold, zinc and copper) alone or in combination with metallo-β-lactamase inhibitor/antimicrobial-based formulation (EDTA/HLE) showed antimicrobial activity against antibiotic resistant Enterococcus sp. and Pseudomonas sp. strains. Furthermore, the observed synergistic effect was detected notably for silver, zinc or copper nanoparticles with EDTA (ethylenediaminetetraacetic acid) and silver nanoparticles with HLE against planktonic Enterococcus sp. strains, or gold nanoparticles+EDTA or HLE against Pseudomonas sp. Regarding activity against bacterial biofilms, zinc nanoparticles combined with either of the reagents caused strong inhibition of developing biofilms of antibiotic resistant Enterococcus sp. Pseudomonas sp. strains, while preformed biofilms were mainly inhibited by silver nanoparticles+reagent. Microscopic analyses confirmed that the antimicrobial activity of nanoparticles was caused by adsorption to the bacterial cell surface, and further enhanced by chelating agents. Hence, we can conclude that nanoparticles+EDTA or HLE could represent a good alternative to limit the spread of antibiotic resistant bacteria in the food chain and the environment.
    MeSH term(s) Anti-Bacterial Agents/pharmacology ; beta-Lactamase Inhibitors/pharmacology ; Metal Nanoparticles ; Pseudomonas ; Enterococcus ; Edetic Acid/pharmacology ; Gold/pharmacology ; Silver/pharmacology ; Copper/pharmacology ; Ecosystem ; Zinc/pharmacology ; Bacteria ; Microbial Sensitivity Tests ; Biofilms ; Pseudomonas aeruginosa
    Chemical Substances Anti-Bacterial Agents ; beta-Lactamase Inhibitors ; Edetic Acid (9G34HU7RV0) ; Gold (7440-57-5) ; Silver (3M4G523W1G) ; Copper (789U1901C5) ; Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2023-07-25
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.125982
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 2374: Show issues Location:
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  4. Article: In silico

    Abriouel, Hikmate / Manetsberger, Julia / Caballero Gómez, Natacha / Benomar, Nabil

    Frontiers in microbiology

    2022  Volume 13, Page(s) 989824

    Abstract: Lactiplantibacillus ... ...

    Abstract Lactiplantibacillus pentosus
    Language English
    Publishing date 2022-11-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2022.989824
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  5. Article: Simply Versatile: The Use of

    Manetsberger, Julia / Caballero Gómez, Natacha / Soria-Rodríguez, Carlos / Benomar, Nabil / Abriouel, Hikmate

    Microorganisms

    2023  Volume 11, Issue 10

    Abstract: Peribacillus ... ...

    Abstract Peribacillus simplex
    Language English
    Publishing date 2023-10-12
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms11102540
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  6. Article ; Online: Characterization of the Culturable Sporobiota of Spanish Olive Groves and Its Tolerance toward Environmental Challenges.

    Manetsberger, Julia / Caballero Gómez, Natacha / Benomar, Nabil / Christie, Graham / Abriouel, Hikmate

    Microbiology spectrum

    2023  , Page(s) e0401322

    Abstract: Olive agriculture presents an integral economic and social pillar of the Mediterranean region with 95% of the world's olive tree population concentrated in this area. A diverse ecosystem consisting of fungi, archaea, viruses, protozoa, and microbial ... ...

    Abstract Olive agriculture presents an integral economic and social pillar of the Mediterranean region with 95% of the world's olive tree population concentrated in this area. A diverse ecosystem consisting of fungi, archaea, viruses, protozoa, and microbial communities-the soil microbiome-plays a central role in maintaining healthy soils while keeping up productivity. Spore-forming organisms (i.e., the sporobiota) have been identified as one of the predominant communities of the soil microbiome and are known for the wide variety of antimicrobial properties and extraordinary resistance. Hence, the aim of this work was to determine the culturable sporobiota of Spanish olive orchards and characterize its phenotypic properties toward common environmental challenges. A collection of 417 heat-resistant bacteria were isolated from five Spanish olive orchards. This collective was termed the "olive sporobiota." Rep-PCR clustering of representative isolates revealed that they all belonged to the group of Bacillus spp., or closely related species, showing a great variety of species and strains. Representative isolates showed susceptibility to common antibiotics, as well as good resistance to heavy metal exposure, with an order of metal tolerance determined as iron > copper > nickel > manganese > zinc > cadmium. Finally, we showed that the application of mineral fertilizer can in several cases enhance bacterial growth and thus potentially increase the relative proportion of the sporobiota in the olive grove ecosystem. In summary, the identification of the culturable olive sporobiota increases our understanding of the microbial diversity in Spanish olive groves, while tolerance and resistance profiles provide important insights into the phenotypic characteristics of the microbial community.
    Language English
    Publishing date 2023-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.04013-22
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  7. Article ; Online: Antimicrobial profile of the culturable olive sporobiota and its potential as a source of biocontrol agents for major phytopathogens in olive agriculture.

    Manetsberger, Julia / Caballero Gómez, Natacha / Benomar, Nabil / Christie, Graham / Abriouel, Hikmate

    Pest management science

    2023  Volume 80, Issue 2, Page(s) 724–733

    Abstract: Background: The phytopathogens Xylella fastidiosa and Verticillium dahliae present an unparalleled threat to olive agriculture. However, there is no efficient field treatment available today for either pest. Spore-forming bacteria (i.e., the sporobiota) ...

    Abstract Background: The phytopathogens Xylella fastidiosa and Verticillium dahliae present an unparalleled threat to olive agriculture. However, there is no efficient field treatment available today for either pest. Spore-forming bacteria (i.e., the sporobiota) are known for their extraordinary resistance properties and antimicrobial activity. The aim of this study was thus to identify potential novel sustainable spore-forming biocontrol agents derived from the culturable olive microbiome, termed the sporobiota, in general and in particular against X. fastidiosa and V. dahliae.
    Results: We demonstrate the wide-ranging antimicrobial profile of 415 isolates from the culturable olive sporobiota towards human and plant pathogens. We further identified five candidates with antagonistic activity against X. fastidiosa and V. dahliae. These belong to the Bacillus subtilis, Bacillus cereus and Peribacillus simplex clade. The activity was related to the species and their relative origin (soil versus leaf endophytic). It is of particular interest that two of these candidates are already naturally present at the site of disease-development that is, plant interior. We further confirmed the presence of lipopeptide genes potentially associated with the reported bioactivity.
    Conclusions: The study provides insights into how members of the olive sporobiota may support the olive plant to ward off detrimental pathogens. It further yields five promising candidates for the development of eco-friendly, multi-active biocontrol agents in olive agriculture. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
    MeSH term(s) Humans ; Olea/microbiology ; Plant Diseases/prevention & control ; Plant Diseases/microbiology ; Plant Roots/microbiology ; Agriculture ; Bacillus cereus ; Anti-Infective Agents
    Chemical Substances Anti-Infective Agents
    Language English
    Publishing date 2023-10-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001705-4
    ISSN 1526-4998 ; 1526-498X
    ISSN (online) 1526-4998
    ISSN 1526-498X
    DOI 10.1002/ps.7803
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    In stock of ZB MED Bonn / Germany

    Z 2731: Show issues

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  8. Article: Antibacterial and antibiofilm effects of essential oil components, EDTA and HLE disinfectant solution on

    Caballero Gómez, Natacha / Manetsberger, Julia / Benomar, Nabil / Castillo Gutiérrez, Sonia / Abriouel, Hikmate

    Frontiers in microbiology

    2022  Volume 13, Page(s) 1014169

    Abstract: The spread of multidrug resistant (MDR) bacteria and resistance genes along the food chain and the environment has become a global, but silent pandemic. To face this challenge, it is of outmost importance to develop efficient strategies to reduce ... ...

    Abstract The spread of multidrug resistant (MDR) bacteria and resistance genes along the food chain and the environment has become a global, but silent pandemic. To face this challenge, it is of outmost importance to develop efficient strategies to reduce potential contamination by these agents. In the present study, 30 strains of
    Language English
    Publishing date 2022-10-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2022.1014169
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  9. Article ; Online: Metagenomic insights into microbial contamination in critical healthcare environments and the efficacy of a novel "HLE" disinfectant.

    Abriouel, Hikmate / Manetsberger, Julia / Lavilla Lerma, Leyre / Pestaña Blanco, María Dolores / Martínez Nogueras, Rafael / Caballero Gómez, Natacha / Benomar, Nabil

    Infection, disease & health

    2023  Volume 28, Issue 4, Page(s) 282–289

    Abstract: Background: Bacterial contamination on inanimate clinical surfaces is directly linked to severe health problems, especially those caused by multidrug resistant (MDR) pathogens. Here, we evaluated the microbial burden in these environments and tested the ...

    Abstract Background: Bacterial contamination on inanimate clinical surfaces is directly linked to severe health problems, especially those caused by multidrug resistant (MDR) pathogens. Here, we evaluated the microbial burden in these environments and tested the efficacy of a novel HLE disinfectant solution.
    Methods: Microbial contamination of healthcare surfaces [Intensive Care Unit (ICU), Long Period Hospitalization Room (LPHR) and Otolaryngology Consultation (OC)] and the efficacy of HLE disinfectant solution were determined analyzing the viable counts on general and selective media, and also by molecular studies focused on metagenomic and specific qPCR.
    Results: Different contamination loads were detected with LPHR showing the highest contamination. Treatment with the HLE disinfectant solution curbed the spread of well-adapted pathogens on touched surfaces (ICU, LPHR and OC). Metagenomic analysis of microbial diversity of the Patient Table (most contaminated surface in LPHR) revealed the presence of mainly A. johnsonii and P. putida. Furthermore, functional annotation of toxin, virulence and antibiotic resistance sequences showed a high diversity of Acinetobacter spp. and Pseudomonas spp. In this context, specific qPCR analysis confirmed the efficacy of HLE disinfectant solution against the most prevalent and critical pathogens Pseudomonas sp. and Acinetobacter sp. achieving their complete eradication.
    Conclusion: Given the persistence of detrimental resistant pathogens, the application of HLE disinfection solution could be a highly beneficial and effective option -used either alone or in combination-for infection prevention and control with the aim to eliminate microbial pathogens and their genes from contaminated contact-surfaces and thus limit the spread to humans and other ecological niches.
    MeSH term(s) Humans ; Disinfectants/pharmacology ; Disinfection ; Bacteria/genetics ; Drug Resistance, Microbial ; Delivery of Health Care
    Chemical Substances Disinfectants
    Language English
    Publishing date 2023-08-08
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2902143-1
    ISSN 2468-0869 ; 2468-0451
    ISSN (online) 2468-0869
    ISSN 2468-0451
    DOI 10.1016/j.idh.2023.07.002
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  10. Article ; Online: Orthologues of Bacillus subtilis Spore Crust Proteins Have a Structural Role in the Bacillus megaterium QM B1551 Spore Exosporium.

    Manetsberger, Julia / Ghosh, Abhinaba / Hall, Elizabeth A H / Christie, Graham

    Applied and environmental microbiology

    2018  Volume 84, Issue 20

    Abstract: The exosporium ... ...

    Abstract The exosporium of
    MeSH term(s) Bacillus megaterium/chemistry ; Bacillus megaterium/genetics ; Bacillus subtilis/chemistry ; Bacillus subtilis/genetics ; Bacterial Proteins/chemistry ; Bacterial Proteins/genetics ; Mutation ; Plasmids ; Spores, Bacterial
    Chemical Substances Bacterial Proteins ; cotX protein, Bacillus subtilis
    Language English
    Publishing date 2018-10-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 223011-2
    ISSN 1098-5336 ; 0099-2240
    ISSN (online) 1098-5336
    ISSN 0099-2240
    DOI 10.1128/AEM.01734-18
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    In stock of ZB MED Cologne/Königswinter

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