Articles with "violaceum" as a keyword



Assessment of shikonin and acetyl-shikonin for mitigating quorum sensing potential of C. violaceum

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Published in 2021 at "Plant Growth Regulation"

DOI: 10.1007/s10725-021-00712-w

Abstract: Shikonins (SK) and acetyl-shikonins (acetyl-SK) are known to possess great pharmaceutical potentials however, their ability to disrupt infectious bacterial communication system viz. quorum sensing (QS) remains unexplored. Therefore, the rationale behind this research was to… read more here.

Keywords: quorum sensing; shikonin; violaceum; inhibition ... See more keywords

A thermostable chitinase from the antagonistic Chromobacterium violaceum that inhibits the development of phytopathogenic fungi.

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Published in 2019 at "Enzyme and microbial technology"

DOI: 10.1016/j.enzmictec.2019.03.009

Abstract: The biocontrol activity of some soil strains of Chromobacterium sp. against pathogenic fungi has been attributed to secreted chitinases. The aim of this work was to characterize biochemically a recombinant chitinase (CvChi47) from C. violaceum… read more here.

Keywords: phytopathogenic fungi; cvchi47; chitinase; thermostable chitinase ... See more keywords

Structural characterization, antioxidant activity, and immunomodulatory activity of non-starch polysaccharides from Chuanminshen violaceum collected from different regions.

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Published in 2019 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2019.09.151

Abstract: Chuanminshen violaceum has been used as an important traditional Chinese medicine and a popular tonic food in China. Polysaccharides are considered the major bioactive components in C. violaceum. In this study, in order well understand… read more here.

Keywords: violaceum collected; different regions; collected different; immunomodulatory ... See more keywords

Chromobacterium violaceum Infection in a Horse.

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Published in 2017 at "Journal of comparative pathology"

DOI: 10.1016/j.jcpa.2017.02.004

Abstract: Chromobacterium violaceum is an opportunistic pathogen of mammals that produces characteristic violet pigment in bacterial culture. We report pneumonia and septicaemia caused by C. violaceum in a horse. Necropsy examination was performed on a 3-year-old… read more here.

Keywords: horse; chromobacterium violaceum; violaceum infection; infection horse ... See more keywords

Quorum quenching mediated virulence factor impairment by Pandanus tectorius leaf extract against Chromobacterium violaceum.

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Published in 2025 at "Natural product research"

DOI: 10.1080/14786419.2025.2491837

Abstract: This study investigated the anti-quorum sensing ability of Pandanus tectorius (PT) leaf extract in suppressing virulence factors including biofilm formation in Chromobacterium violaceum under in vitro conditions. The extract significantly inhibited the biosynthesis of violacein,… read more here.

Keywords: quorum; pandanus tectorius; leaf extract; violaceum ... See more keywords

Clinical Presentation and Outcomes Following Infection With Vibrio spp, Aeromonas spp, Chromobacterium violaceum, and Shewanella spp Water-Associated Organisms in Tropical Australia, 2015–2022

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Published in 2024 at "Open Forum Infectious Diseases"

DOI: 10.1093/ofid/ofae319

Abstract: Abstract Background Water-associated bacterial infections cause a wide spectrum of disease. Although many of these infections are typically due to human host commensal Staphylococcal or Streptococcal spp, water exposure can result in infections with environmental… read more here.

Keywords: vibrio spp; shewanella spp; water; spp ... See more keywords

Interplay between two quorum sensing-regulated pathways, violacein biosynthesis and VacJ/Yrb, dictates outer membrane vesicle biogenesis in Chromobacterium violaceum.

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Published in 2020 at "Environmental microbiology"

DOI: 10.1111/1462-2920.15033

Abstract: Outer membrane vesicles (OMVs) are lipid nanoparticles released by Gram-negative bacteria, which play multiple roles in bacterial physiology and adaptation to diverse environments. In this work, we demonstrate that OMVs released by the environmental pathogen… read more here.

Keywords: vacj; regulated pathways; outer membrane; chromobacterium violaceum ... See more keywords

Chromobacterium violaceum: A rare opportunistic pathogen and clue for pediatric chronic granulomatous disease

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Published in 2022 at "Pediatric Dermatology"

DOI: 10.1111/pde.15215

Abstract: Chromobacterium violaceum is a rare bacterium found in water and soil in tropical regions and typically presents with a localized skin infection or lymphadenitis which can progress to fulminant septicemia and even death. We describe… read more here.

Keywords: chronic granulomatous; chromobacterium violaceum; granulomatous disease; violaceum ... See more keywords

A quorum-sensing regulatory cascade for siderophore-mediated iron homeostasis in Chromobacterium violaceum

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Published in 2024 at "mSystems"

DOI: 10.1128/msystems.01397-23

Abstract: ABSTRACT Iron is a transition metal used as a cofactor in many biochemical reactions. In bacteria, iron homeostasis involves Fur-mediated de-repression of iron uptake systems, such as the iron-chelating compounds siderophores. In this work, we… read more here.

Keywords: regulatory cascade; iron homeostasis; iron; violaceum ... See more keywords

A Quorum Sensing-Regulated Type VI Secretion System Containing Multiple Nonredundant VgrG Proteins Is Required for Interbacterial Competition in Chromobacterium violaceum

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Published in 2022 at "Microbiology Spectrum"

DOI: 10.1128/spectrum.01576-22

Abstract: The type VI secretion system (T6SS) is a contractile nanomachine used by many Gram-negative bacteria to inject toxic effectors into adjacent cells. The delivered effectors are bound to the components of a puncturing apparatus containing… read more here.

Keywords: system; competition; secretion; violaceum ... See more keywords
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Infection of highly insecticide-resistant malaria vector Anopheles coluzzii with entomopathogenic bacteria Chromobacterium violaceum reduces its survival, blood feeding propensity and fecundity

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Published in 2020 at "Malaria Journal"

DOI: 10.1186/s12936-020-03420-4

Abstract: Background This is now a concern that malaria eradication will not be achieved without the introduction of novel control tools. Microbiological control might be able to make a greater contribution to vector control in the… read more here.

Keywords: control; infection; fecundity; blood feeding ... See more keywords