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  1. Book ; Online: Myxobacteria

    Whitworth, David

    Physiology and Regulation

    2022  

    Keywords Research & information: general ; Biology, life sciences ; Microbiology (non-medical) ; carotenoids ; comparative genomics ; development ; fruiting body formation ; one-component systems ; quorum signalling ; two-component systems ; myxobacteria ; Myxococcales ; germination ; bacterial cell wall ; sporulation ; morphology ; photoreceptor ; photosensitizer ; photoregulation ; singlet oxygen ; plasmalogens ; CarF ; vitamin B12 ; CarH ; ECF-sigma ; CarD-CdnL ; microbial food web ; trophic interactions ; predator-prey interactions ; mesopredator ; social bacteria ; nematodes ; experimental community ; behavior ; Myxococcus sp ; Corallococcus sp ; Melittangium sp ; Archangium sp ; biosynthetic gene clusters ; Myxococcus xanthus ; phase contrast microscopy ; fluorescence microscopy ; aggregation ; rippling ; deep learning ; generative adversarial network ; pretator-prey coevolution ; antagonism ; mucoidy ; predatory bacteria ; bacterial predation ; prey diversity ; negative frequency dependence ; experimental evolution ; MyxoEE-6 ; functional genomics ; genome evolution ; genome organisation ; pan-genome ; proteomics ; taxonomy ; transcriptomics ; n/a
    Language 0|e
    Size 1 electronic resource (160 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021608915
    ISBN 9783036539232 ; 3036539239
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: Myxobacteria: Physiology and Regulation.

    Whitworth, David E

    Microorganisms

    2022  Volume 10, Issue 4

    Abstract: Myxobacteria are fascinating and important prokaryotes [ ... ]. ...

    Abstract Myxobacteria are fascinating and important prokaryotes [...].
    Language English
    Publishing date 2022-04-12
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms10040805
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Myxobacterial Predation: A Standardised Lawn Predation Assay Highlights Strains with Unusually Efficient Predatory Activity.

    Zwarycz, Allison S / Whitworth, David E

    Microorganisms

    2023  Volume 11, Issue 2

    Abstract: Myxobacteria prey upon a broad range of microorganisms. Lawn assays are commonly used to quantify myxobacterial predation-myxobacterial suspensions are spotted onto prey lawns, and monitored via spot expansion. The diversity in motility behaviours of ... ...

    Abstract Myxobacteria prey upon a broad range of microorganisms. Lawn assays are commonly used to quantify myxobacterial predation-myxobacterial suspensions are spotted onto prey lawns, and monitored via spot expansion. The diversity in motility behaviours of myxobacterial strains and differing assay protocols in myxobacteriology laboratories led us to develop a highly-specified assay, which was applied to 28 myxobacterial strains preying on seven phytopathogenic prey species. Generally, prey organisms showed no qualitative differences in their susceptibility/resistance to myxobacterial predation. For most myxobacteria, prey did not stimulate, and in ~50% of cases actively hindered colony expansion. Only ~25% of predator/prey strain combinations exhibited greater colony expansion than in the absence of nutrients. The activity of predatory strains against different prey correlated, implying effective predators may have relatively non-specific predation mechanisms (e.g., broad specificity proteases/lipases), but no correlation was observed between predatory activity and phylogeny. Predation on dead (but intact) or lysed prey cells gave greater colony expansion than on live prey. Occasional strains grew substantially faster on dead compared to lysed cells, or vice-versa. Such differences in accessing nutrients from live, dead and lysed cells indicates there are strain-specific differences in the efficiencies/machineries of prey killing and nutrient acquisition, which has important implications for the ecology of myxobacterial predators and their prey.
    Language English
    Publishing date 2023-02-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms11020398
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Increasing creative self-efficacy: Developing the confidence of biochemistry undergraduates to innovate.

    Payne, Simon Mark / Whitworth, David Edward

    Biochemistry and molecular biology education : a bimonthly publication of the International Union of Biochemistry and Molecular Biology

    2022  Volume 50, Issue 3, Page(s) 296–306

    Abstract: Biochemistry graduates need to be creative, however assessing creativity requires the production of novelty, judged by or against that of peers. A related phenomenon is 'creative self-efficacy' (CSE) - one's self-belief in producing creative outcomes. ... ...

    Abstract Biochemistry graduates need to be creative, however assessing creativity requires the production of novelty, judged by or against that of peers. A related phenomenon is 'creative self-efficacy' (CSE) - one's self-belief in producing creative outcomes. CSE is a contributor to creativity, but is more easily assessed, and thus more amenable for targeting pedagogically. To investigate interactions between student CSE and the learning environment, a biochemistry laboratory exercise was deployed within a 'creative' module, wherein students created their own experimental protocols. Students completed questionnaires at the beginning and end of the module. Compared to 'control' modules lacking overtly creative activities, the creative module significantly increased students' perceptions of their own creativity and whether their studies had increased their creativity. Students' confidence in meeting degree learning outcomes (for instance the ability to work productively in a laboratory), and motivation to study, were also significantly increased. Marks attained from the creative exercise correlated with students' CSE, but surprisingly, students' expected marks correlated negatively with their CSE, implying they had a poor understanding of the relationship between creativity and success. Our results suggest that the learning environment can positively affect students' CSE, promoting academic attainment of learning outcomes, motivation, and their confidence as biochemists.
    MeSH term(s) Creativity ; Humans ; Learning ; Self Efficacy ; Students ; Surveys and Questionnaires
    Language English
    Publishing date 2022-04-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2039717-3
    ISSN 1539-3429 ; 1470-8175
    ISSN (online) 1539-3429
    ISSN 1470-8175
    DOI 10.1002/bmb.21628
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Identification of secondary metabolites containing a diketopiperazine core in extracts from myxobacterial strains with growth inhibition activity against a range of prey species.

    Radford, Emily J / Whitworth, David E / Allison, Gordon

    Access microbiology

    2023  Volume 5, Issue 10

    Abstract: Myxobacteria produce a variety of bioactive secondary metabolites, and with a wealth of under-researched species they hold vast potential for undiscovered compounds. With the ever-increasing need for new antibiotics, the development of novel therapeutics ...

    Abstract Myxobacteria produce a variety of bioactive secondary metabolites, and with a wealth of under-researched species they hold vast potential for undiscovered compounds. With the ever-increasing need for new antibiotics, the development of novel therapeutics is vitally important. Therefore, this study aimed to extract and elucidate antimicrobial metabolites from the following myxobacteria:
    Language English
    Publishing date 2023-10-05
    Publishing country England
    Document type Journal Article
    ISSN 2516-8290
    ISSN (online) 2516-8290
    DOI 10.1099/acmi.0.000629.v4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Interspecies conflict affects RNA expression.

    Whitworth, David E

    FEMS microbiology letters

    2018  Volume 365, Issue 10

    Abstract: Predation is an extreme form of competition between bacteria, involving the secretion of antimicrobial substances by predators, often packaged within outer membrane vesicles (OMVs). Recent studies into the Myxococcus xanthus/Escherichia coli predator/ ... ...

    Abstract Predation is an extreme form of competition between bacteria, involving the secretion of antimicrobial substances by predators, often packaged within outer membrane vesicles (OMVs). Recent studies into the Myxococcus xanthus/Escherichia coli predator/prey relationship have illuminated transcriptional changes during predation, identifying likely targets of predatory attack in the prey and nutrient assimilation strategies of the predator. Abundant non-coding RNAs can be observed in the predator and prey transcriptomes, with evidence of predation-dependent regulation of RNA levels. Given the observed secretion of regulatory RNAs within OMVs by bacteria, it will next be exciting to test whether the intercellular trafficking of regulatory RNAs is employed by predator and/or prey in their survival struggles.
    MeSH term(s) Biological Transport ; Escherichia coli/genetics ; Escherichia coli/metabolism ; Gene Expression Regulation, Bacterial ; Myxococcus xanthus/genetics ; Myxococcus xanthus/metabolism ; RNA, Bacterial/genetics ; RNA, Bacterial/metabolism ; RNA, Untranslated/genetics ; RNA, Untranslated/metabolism ; Transcriptome ; Transport Vesicles/genetics ; Transport Vesicles/metabolism
    Chemical Substances RNA, Bacterial ; RNA, Untranslated
    Language English
    Publishing date 2018-04-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 752343-9
    ISSN 1574-6968 ; 0378-1097
    ISSN (online) 1574-6968
    ISSN 0378-1097
    DOI 10.1093/femsle/fny096
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1372: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: The RNA cargo of

    Swain, Martin T / Radford, Emily J / Akanyeti, Allison S / Hallwood, James H / Whitworth, David E

    Molecular omics

    2024  Volume 20, Issue 2, Page(s) 138–145

    Abstract: The outer membrane vesicles (OMVs) secreted by some Gram-negative bacteria contain RNA cargo, which can be introduced into target cells, affecting their cellular processes. To test whether the antimicrobial OMVs secreted by predatory myxobacteria might ... ...

    Abstract The outer membrane vesicles (OMVs) secreted by some Gram-negative bacteria contain RNA cargo, which can be introduced into target cells, affecting their cellular processes. To test whether the antimicrobial OMVs secreted by predatory myxobacteria might contain cargo RNA with a role in prey killing, we purified OMVs and cells from four different strains of
    MeSH term(s) Myxococcus ; RNA
    Chemical Substances RNA (63231-63-0)
    Language English
    Publishing date 2024-02-19
    Publishing country England
    Document type Journal Article
    ISSN 2515-4184
    ISSN (online) 2515-4184
    DOI 10.1039/d3mo00222e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Editorial: Mechanisms of prokaryotic predation, volume II.

    Whitworth, David E / Pérez, Juana / Mitchell, Robert J / Pande, Samay

    Frontiers in microbiology

    2023  Volume 14, Page(s) 1256252

    Language English
    Publishing date 2023-07-27
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1256252
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Group Therapy or Mass Suicide? The Sharing of Cellular Damage Between Members of a Bacterial Community.

    Whitworth, David E

    BioEssays : news and reviews in molecular, cellular and developmental biology

    2017  Volume 39, Issue 12

    MeSH term(s) Bacteria ; Molecular Weight ; Myxococcales ; Psychotherapy, Group ; Suicide
    Language English
    Publishing date 2017-11-08
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 50140-2
    ISSN 1521-1878 ; 0265-9247
    ISSN (online) 1521-1878
    ISSN 0265-9247
    DOI 10.1002/bies.201700178
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2024: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  10. Article: A Genomic Survey of Signalling in the Myxococcaceae.

    Whitworth, David E / Zwarycz, Allison

    Microorganisms

    2020  Volume 8, Issue 11

    Abstract: As prokaryotes diverge by evolution, essential 'core' genes required for conserved phenotypes are preferentially retained, while inessential 'accessory' genes are lost or diversify. We used the recently expanded number of myxobacterial genome sequences ... ...

    Abstract As prokaryotes diverge by evolution, essential 'core' genes required for conserved phenotypes are preferentially retained, while inessential 'accessory' genes are lost or diversify. We used the recently expanded number of myxobacterial genome sequences to investigate the conservation of their signalling proteins, focusing on two sister genera (
    Language English
    Publishing date 2020-11-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2720891-6
    ISSN 2076-2607
    ISSN 2076-2607
    DOI 10.3390/microorganisms8111739
    Database MEDical Literature Analysis and Retrieval System OnLINE

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