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... AIM: Indole is a signaling molecule secreted by over 85 species of bacteria, including several Vibrio species, and it has been reported to affect different bacterial phenotypes such as biofilm formation, motility, and virulence. In this study, we aimed at investigating the inter‐strain variability of the effect of indole in 12 different strains belonging to the Harveyi clade of vibrios. METHODS AN ...
... Interleukin-6 (IL-6) is a multifunctional cytokine involved in innate and acquired immunity. In mammals, IL-6 can induce the secretion of acute-phase proteins (APPs) and antimicrobial peptides, activate macrophages and neutrophils, and regulate the expression of inflammatory cytokines in innate immunity, resulting in enhanced resistance to invading pathogens. In teleost fish, the functions of IL-6 ...
Vibriocampbellii, etc ; bioluminescence; genes; horizontal gene transfer; plasmids; polymerase chain reaction; Show all 6 Subjects
Abstract:
... Bacterial bioluminescence is emitted due to regulation by lux genes present on the chromosomal DNA. Earlier studies have attempted to find possible occurrence of lux genes on plasmid DNA (pDNA) but did not find such incident. Evidently, the present study reveals the rare incidence of luxA gene on pDNA analysed using polymerase chain reaction. We detected the 755 bp of luxA gene on plasmid DNA of l ...
C.O. Lomelí‐Ortega; A.J. Martínez‐Sández; D.R. Barajas‐Sandoval; A.G. Reyes; F. Magallón‐Barajas; B. Veyrand‐Quíros; L. Gannon; C. Harrison; S. Michniewski; A. Millard; E. Quiroz‐Guzmán
Vibriocampbellii, etc ; Artemia franciscana; bacteriophages; farms; genomics; latent period; mortality; nauplii; phage therapy; sediments; shrimp; Show all 11 Subjects
Abstract:
... AIMS: This study describes the physicochemical and genomic characterization of phage vB_Vc_SrVc9 and its potential for phage therapy application against a pathogenic Vibrio campbellii strain. METHODS AND RESULTS: A lytic phage vB_Vc_SrVc9 against V. campbellii was isolated from shrimp farm sediment, and characterized physicochemical and genomically. The use of vB_Vc_SrVc9 phage increased the survi ...
Chelsea A. Simpson; Blake D. Petersen; Nicholas W. Haas; Logan J. Geyman; Aimee H. Lee; Ram Podicheti; Robert Pepin; Laura C. Brown; Douglas B. Rusch; Michael P. Manzella; Kai Papenfort; Julia C. van Kessel
Vibriocampbellii, etc ; DNA; Vibrio harveyi; biofilm; bioluminescence; genomics; homoserine; marine ecosystems; phylogeny; quorum sensing; regulon; Show all 11 Subjects
Abstract:
... Vibrio campbellii BB120 (previously classified as Vibrio harveyi) is a fundamental model strain for studying quorum sensing in vibrios. A phylogenetic evaluation of sequenced Vibrio strains in Genbank revealed that BB120 is closely related to the environmental isolate V. campbellii DS40M4. We exploited DS40M4's competence for exogenous DNA uptake to rapidly generate greater than 30 isogenic strain ...
... Phytocompounds have long been well recognized in medicine and pharmacy. The natural compounds are frequently utilized as the fundamental resource in the development of novel therapeutic agents to treat bacterial infections. The rapid emergence of bacterial infections, particularly caused by Vibrio species, is seen as a serious concern for the development of aquaculture industries, resulting in sub ...
Vibriocampbellii, etc ; Agrobacterium radiobacter; Litopenaeus vannamei; Vibrio harveyi; Vibrio parahaemolyticus; aquaculture; biosensors; gene expression; necrotizing hepatopancreatitis; quorum sensing; regulator genes; shrimp; toxins; transcription factors; virulence; Show all 15 Subjects
Abstract:
... This study aimed to detect the presence of quorum-sensing (QS) signalling molecules and evaluate the in vivo virulence gene expression in shrimp challenged with acute hepatopancreatic necrosis disease (AHPND) positive Vibrio isolates. Three types of QS signal molecules, namely N-acyl-homoserine lactone (AHL), Autoinducer-2 (AI-2) and Cholerae autoinducer-1-like (CAI-1) molecules were detected in A ...
Vibriocampbellii, etc ; chitin; databases; enthalpy; hydrogen bonding; hydrophobicity; minimum inhibitory concentration; Show all 7 Subjects
Abstract:
... Vibrio spp. play a vital role in the recycling of chitin in oceans, but several Vibrio strains are highly infectious to aquatic animals and humans. These bacteria require chitin for growth; thus, potent inhibitors of chitin‐degrading enzymes could serve as candidate drugs against Vibrio infections. This study examined NAG‐thiazoline (NGT)‐mediated inhibition of a recombinantly expressed GH20 β‐N‐a ...
... The occurrence of transgenerational innate immune memory in invertebrates possibly offers an opportunity for the creation of offspring with increased resistance against infectious diseases. Shrimps, being invertebrates rely on their innate immune system as the main defence mechanism to combat invading pathogens. Thus, creating transgenerational innate immune memory could be used for disease preven ...
Vibriocampbellii, etc ; Litopenaeus vannamei; death; fish; necrotizing hepatopancreatitis; plasmids; postlarvae; shrimp; toxicity; toxins; virulence; Show all 11 Subjects
Abstract:
... PirAB is a binary toxic protein that causes acute hepatopancreatic necrosis disease (AHPND) in shrimp. Their closest homologs, PirAᵛᶜ‐like and PirBᵛᶜ‐like proteins, are encoded by two adjacent genes on a non‐pVH plasmid from a Vibrio campbellii strain. Herein, PirABᵛᶜ‐like protein caused neither abnormalities nor death in shrimp postlarvae (Litopenaeus vannamei); furthermore, typical AHPND clinica ...
... We investigated the inhibition kinetics of VhGlcNAcase, a GH20 exo-β-N-acetylglucosaminidase (GlcNAcase) from the marine bacterium Vibrio campbellii (formerly V. harveyi) ATCC BAA-1116, using TMG-chitotriomycin, a natural enzyme inhibitor specific for GH20 GlcNAcases from chitin-processing organisms, with p-nitrophenyl N-acetyl-β-d-glucosaminide (pNP-GlcNAc) as the substrate. TMG-chitotriomycin in ...
... Vibriosis caused by Vibrio campbellii and related species is amongst the major hindrance to the sustainable expansion of giant freshwater prawn Macrobrachium rosenbergii larviculture. Induction of heat shock protein Hsp70 is a natural response of stressed organisms that protect against many insults including vibriosis in aquaculture animals. Therefore, there is a great interest in searching for na ...
... Vibrio campbellii is an emerging aquaculture pathogen that causes luminous vibriosis in farmed shrimp. Although prophages in various aquaculture pathogens have been widely reported, there is still limited knowledge regarding prophages in the genome of pathogenic V. campbellii. Here, we describe the full-genome sequence of a prophage named HY01, induced from the emerging shrimp pathogen V. campbell ...
... Vibrio campbellii (formerly Vibrio harveyi) is a bacterial pathogen that causes vibriosis, which devastates fisheries and aquaculture worldwide. V. campbellii expresses chitinolytic enzymes and chitin binding/transport proteins, which serve as excellent targets for antimicrobial agent development. We previously characterized VhChiP, a chitooligosaccharide-specific porin from the outer membrane of ...
... Vibriosis, caused by Vibrio strains, is an important bacterial disease and capable of causing significant high mortality in aquatic animals. Essential oils (EOs) have been considered as an alternative approach for the treatment of aquatic bacterial diseases. In this study, we evaluated the antibacterial activity of essential oils (n = 22) or essential oil components (EOCs, n = 12) against Vibrio s ...
... The main intent of the present study was to identify the novel anti-quorum sensing (anti-QS) compounds from probiotic product (Rhodomax) and assess their anti-infection effect of against Vibrio campbellii infection using tomato clownfish (Amphiprion frenatus). In this study, rhodomax probiotic-product was investigated for its active compounds’ prediction through in silico analysis. Initially, anti ...
Vibriocampbellii, etc ; bacteria; benzene; bioluminescence; bioremediation; ethylbenzene; exposure duration; light intensity; median effective concentration; oils; petroleum; toluene; toxicity; xylene; Thailand; Show all 15 Subjects
Abstract:
... Fifteen native luminescent bacteria were isolated from the Gulf of Thailand, and their sensitivity for the detection of toxicity of crude oil and its aromatic components was investigated. Of these isolates, Vibrio campbellii strain FS5 was one of the two most highly inhibited bacteria at all crude oil concentrations. This bacterium showed a decrease in luminescence intensity of between 10.7 and 80 ...
... Acute hepatopancreatic necrosis disease (AHPND) is an emerging disease that has caused mass mortality in shrimp in many countries in Asia and South America. A new strain of Vibrio parahaemolyticus (VpAHPND), carrying one or more extrachromosomal ~70 kbp plasmids that encode homologues of the Photorhabdus insect-related (Pir) binary toxins (PirAvp and PirBvp) is the causative agent of AHPND. Bioass ...
... The Gram-negative bacterium Yersinia ruckeri is the causative agent for enteric red mouth disease in salmonids. The genome of Y. ruckeri YRB contains a biosynthetic gene cluster encoding the biosynthesis of catechol siderophores that are diastereomeric with the known vanchrobactin class of siderophores, (DHBᴰArgᴸSer)₍₁–₃₎. Ruckerbactin (1), produced by Y. ruckeri YRB, was found to be the linear tr ...
Vibriocampbellii, etc ; Vibrio alginolyticus; aquaculture; carbon; ecotoxicology; food chain; genes; heavy metals; host-pathogen relationships; marine environment; microbiome; microplastics; pollution; risk; secretion; technology; xenobiotics; Show all 17 Subjects
Abstract:
... Besides the ecotoxicological consequences of microplastics and associated chemicals, the association of microbes on plastics has greater environmental implications as microplastics may select for unique microbiome participating in environmentally significant functions. Despite this, the functional potential of the microbiome associated with different types of plastics is understudied. Here, we inv ...