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Topic: Vibrio fischeri

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	Vibrio fischeri Eupyrmna scolopes symbiosis (Site not responding. Last check: 2007-10-29)
		Ruby, E. Ecology of a benign "infection": colonization of the squid luminous organ by Vibrio fischeri.
		Alterations in Vibrio fischeri motility correlate with a delay in symbiosis initiation and are associated with additional symbiotic colonization defects.
		The periplasmic, group III catalase of Vibrio fischeri is required for normal symbiotic competence, and is induced both by oxidative stress and by approach to stationary phase.
	www.sp.uconn.edu /~mcbstaff/graf/VfEs/EsVfmain.htm (1823 words)

	Pharyngula::Squid and Vibrio (Site not responding. Last check: 2007-10-29)
		fischeri is fascinating for a number of reasons, but the big one is the lux operon, and the associated "quorum sensing" system, which has become one of the hottest topics in microbiology.
		Vibrios are ubiquitous and abundant in the aquatic environment.
		A high abundance of vibrios is also detected in tissues and/or organs of various marine algae and animals, e.g., abalones, bivalves, corals, fish, shrimp, sponges, squid, and zooplankton.
	pharyngula.org /index/weblog/comments/squid_and_vibrio (1351 words)

	Vibrio fischeri - Wikipedia, the free encyclopedia
		Vibrio fischeri is a rod-shaped bacterium found globally in the marine environments.
		fischeri in the ocean waters inoculate the light organs of juvenile squid and fish.
		fischeri is caused by transcription induced by population-dependent quorum sensing.
	en.wikipedia.org /wiki/Vibrio_fischeri (518 words)

	Vibrio
		HEDLUND (B.P.) and STALEY (J.T.): Vibrio cyclotrophicus sp.
		Vibrio fischeri (Beijerinck 1889) Lehmann and Neumann 1896 (Approved Lists 1980) and Photobacterium fischeri (Beijerinck 1889) Reichelt and Baumann 1973 (Approved Lists 1980) have the same type strain and therefore are homotypic synonyms (Rules 24a and 24b (1)).
		2001, Vibrio mediterranei Pujalte and Garay 1986 is an earlier heterotypic synonym of ¤ Vibrio shilonii corrig.
	www.bacterio.cict.fr /uw/vibrio.html (5129 words)

	Ruby Papers
		Vibrio fischeri Flagellin A Is Essential for Normal Motility and for Symbiotic Competence during Initial Squid Light Organ Colonization.
		The Vibrio fischeri sapABCDF locus is required for normal growth, both in culture and in symbiosis.
		Occurrence of plasmid DNA in the sepiolid squid symbiont Vibrio fischeri.
	www.medmicro.wisc.edu /labs/ruby/papers/ruby.shtml (773 words)

	Books about Vibrio - WrongDiagnosis.com
		Respiration and glycolysis of the cholera and cholera-like vibrios
		Effects of freezing on the survival of Vibrio parahaemolyticus and the efficiency of enumeration methods to recover this organism from frozen and non-frozen...
		On the classification of Vibrio cholerÃ¦ and the cholera-like vibrios
	www.wrongdiagnosis.com /v/vibrio/books.htm (1393 words)

	Medscape MEDLINE search: Vibrio (Site not responding. Last check: 2007-10-29)
		bacteriophages to infect Vibrio harveyi, Vibrio cholerae and Vibrio mimicus.
		A collagenase-targeted multiplex PCR assay for identification of Vibrio alginolyticus, Vibrio cholerae, and Vibrio parahaemolyticus.
		Vibrio cholerae is a Gram-negative rod that inhabits the aquatic environment and is the aetiological agent of cholera, a disease that is endemic in much of Southern Asia.
	search.medscape.com /uslclient/searchMedline.do?queryText=Vibrio (1246 words)

	Kit for the isolation, identification and quantitation of toxicants - Patent 6340572
		Vibrio fischeri.sup.16 and Vibrio harveyil.sup.7 contain an enzyme necessary to make light, a well as two reagent compounds (a long-chained aliphatic aldehydes and a vitamin derivative, which is a yellow pigment flavin mononucleotide.
		Selection of Vibrio fischeri bacteria would thus be indicated as particularly suitable for use in the described method where a sample is suspected to contain pesticides, such as in a pesticide production facility, or perhaps where foodstuffs are stored.
		The Inventors applied the luminescent bacteria, Vibrio fischeri to the chromatogram specifically by spraying the described suspension of bacteria (contained in a buffered salt solution of 3% (0.5 M) NaCl at a pH of about 7) onto the developed chromatogram after the solvent in which the sample was contained had evaporated.
	www.freepatentsonline.com /6340572.html (10838 words)

	Vibrio - Wikipedia, the free encyclopedia
		Bacteria of the genus Vibrio are Gram-negative bacilli, with comma-shaped cells.
		Typically found in saltwater, Vibrio are oxidase positive, facultatively anaerobic, and do not form spores.
		Several species of Vibrio are important human pathogens; most disease-causing strains are associated with gastroenteritis but can also infect open wounds or cause septicemia.
	en.wikipedia.org /wiki/Vibrio (163 words)

	Vibrio - MicrobeWiki
		Vibrio bacteria are most commonly found in marine or estuarine environments.
		Vibrio are usually found in temperate or subtropic waters.
		Graf, J. "The Light-Organ Symbiosis of Vibrio fischeri and the Hawaiian Squid, Euprymna scolopes." February 2005.
	microbewiki.kenyon.edu /mediawiki-1.6.6/index.php/Vibrio (688 words)

	Dr. Edward G. Ruby
		fischeri genome project, and the construction of gene microarrays, has opened a new chapter in these studies.
		We believe that this natural biological system serves as a model of pathogenic vibrio infection and, perhaps, of the evolution of the virulence state in vibrios; that is, bacterial and host determinants that potentiate light organ symbiosis may reveal convergences with known vibrio virulence factors, and promote the discovery of as yet undescribed ones.
		An altered motility phenotype in Vibrio fischeri that correlates with a symbiotic colonization defect.
	www.medmicro.wisc.edu /department/faculty/ruby.html (594 words)

	Margaret McFall-Ngai - Department of Zoology, University of Hawaii
		We discovered that the specific bacterial symbiont, V. fischeri, turns down the expression of the peroxidase gene in tissues where it occurs as a beneficial symbiont, but turns up the expression of this gene in tissues (specifically gills) where V. fischeri is perceived as a pathogen.
		Lemus, JD and MJ McFall-Ngai* (2000) Alterations in the proteome of the Euprymna scolopes light organ in response to symbiotic Vibrio fischeri.
		Nyholm, SV, EV Stabb, EG Ruby and MJ McFall-Ngai* (2000) Harvesting symbiotic vibrios: Imposing a magnet on the environmental haystack.
	www.hawaii.edu /zoology/faculty/mcfall-ngai.htm (1495 words)

	Gram negatives
		Vibrio parahaemolyticus and Vibrio vulnificus cause acute diarrheal disease associated with consumption of fecally-contaminated, undercooked shellfish, oysters, clams and crabs.
		The term vibrio refers to a back and forth vibration of these gram negative, comma-shaped bacteria that are motile by a polar flagellum (Fig1).
		Vibrio cholera causes a severe secretory diarrhea by means of a secreted enterotoxin.
	www.ccsf.edu /Departments/Biology/ctoebe/gm-vibrio.htm (899 words)

	Angelica Perez
		Vibrio fischeri has been an extensively studied marine bacterium because of its characteristic bioluminescence inside the organ of the Hawaiian bobtail squid and certain monocentrid fishes.
		Vibrio fischeri has revealed simple concepts of gene regulation, such as activation of operons.
		Vibrio fischeri and certain relatives have also helped us learn that cross species communication between bacteria can occur via homoserine lactones.
	employees.oxy.edu /momartin/microbios/aperez.html (371 words)

	Vibrio fischeri
		Vibrio fischeri is a heterotrophic gram-negative bacteria found in temperate and subtropical waters.
		fischeri is routinely found in fish, and its bioluminescence is thought to not only explain a glow seen on decomposing fish, but also glowing fish sticks!
		fischeri is most often found has a symbiont of Euprymna scolopes, a small shallow water squid found on the shores of Hawaii.
	web.umr.edu /~microbio/BIO221_2004/V_fischeri.htm (375 words)

	Microbiology - Dr. Cheryl A. Whistler
		Using as a model system they symbiosis of the bioluminescent bacterium, Vibrio fischeri, with its animal host, the squid Euprymna scolopes, my research seeks to elucidate how bacteria initiate and maintain long-term associations and how hosts recognize and respond to their desired symbiotic partner.
		fischeri, the squid host adapts to this association and, in response to bacterial signals, undergoes a program of changes that leads to the normal develoment of the light organ.
		Figure 2: Vibrio fischeri bacteria on a plate are visible with ambient light (left), and also in the dark (right), due to their production of blue-green bioluminescence.
	microbiology.unh.edu /faculty/Whistler (767 words)

	Loyola Univ. Health Univ. Health Sys- Microbiology & Immunology: Current Research in the Visick Lab
		To understand the signalling communication between the bacterium Vibrio fischeri and its symbiotic host, the Hawaiian squid Euprymna scolopes, we have begun to identify bacterial genes that play an essential role in bacterial colonization of the symbiotic light organ.
		Vibrio fischeri and its host: it takes two to tango.
		Roles of bacterial regulators in the symbiosis between Vibrio fischeri and Euprymna scolopes, p.
	www.meddean.luc.edu /lumen/DeptWebs/microbio/KV/research.htm (525 words)

	Faculty \| Eric V. Stabb
		I am studying the light organ symbiosis between the bacterium Vibrio fischeri and the Hawaiian squid Euprymna scolopes, as a model for understanding natural bacteria-animal interactions.
		A particular defined V. fischeri mutant, which produces aberrant LPS, shows no growth defect in culture but is impaired in the ability to colonize E.
		fischeri strains, and we are always working on new genetic tools that will allow us to manipulate, and thereby understand, this interesting bacterium.
	www.uga.edu /mib/people/stabb.htm (423 words)

	IngentaConnect Molecular characterization of autoinduction of bioluminescence in...
		Repeated attempts to clone the luxI from Vibrio fischeri ATCC 49387 failed to produce a clone carrying a functional LuxI.
		fischeri ATCC 49387 revealed that its LuxI protein lacks detectable LuxI activity due to the presence of a glutamine residue at position 125 in the deduced amino acid sequence.
		fischeri ATCC 49387 increases with increasing cell density, indicative of a typical autoinduction response.
	www.ingentaconnect.com /content/nrc/cjm/2005/00000051/00000007/art00004 (611 words)

	The lux bioluminescence system
		They are found in the marine bacterium, Vibrio fischeri, in which the genes responsible for bioluminescence (lux genes) are expressed in response in increasing cell density.
		fischeri occurs at very high densities in specialized light-emitting organs of certain marine fish and squid where the light produced by the bacteria is used by the animal host.
		fischeri is also found in lower densities in seawater where it exists as a member of the bacterioplankton.
	departments.kings.edu /biology/lux/luxbiolum.html (766 words)

	Eric Stabb (Site not responding. Last check: 2007-10-29)
		We are currently studying the light organ symbiosis between the bacterium Vibrio fischeri and the Hawaiian squid Euprymna scolopes.
		A defined V. fischeri mutant, which produces aberrant LPS, shows no growth defect in culture but is impaired in the ability to colonize E. scolopes.
		Future goals of this project are to continue cloning and disrupting genes involved in V. fischeri LPS biosynthesis and determining the symbiotic phenotype(s) of these mutants.
	www.biomed.uga.edu /mem_stabb_eric.htm (473 words)

	Bacterial Transformation Experiment
		Research on the regulation of bioluminescence in Vibrio fischeri has provided us with exciting teaching materials that can be used in a series of molecular biology experiments, including transformation.
		However, the genes for bioluminescence are from the marine bacterium, Vibrio fischeri.
		Vibrio fischeri has adapted to a cooler environment (the ocean) and, therefore, the proteins for bioluminescence are heat denatured at 37°C. ©2000 James Slock, Ph.D
	departments.kings.edu /biology/lux/bacterial.html (878 words)

	Microbe Magazine (Site not responding. Last check: 2007-10-29)
		fischeri, including genomic sequencing of a squid symbiont, is enabling researchers to analyze how luminescence integrates into the physiology of this bacterial species and to test specific hypotheses about what advantage light production confers on the bacteria.
		fischeri genome sequence and to combine this knowledge with the ability to genetically manipulate these bacteria and observe them under controlled laboratory conditions in the ecologically relevant environment of a natural squid host.
		fischeri, the luxC, luxD, luxE, and luxG genes flank luxA and luxb.
	www.asm.org /news/index.asp?bid=34677 (2652 words)

	Sequencing of marine bacterium will help study of cell communication
		Blacksburg, Va., February 7, 2005 — The opportunity to annotate the genome of the glow-in-the-dark bacterium, Vibrio fischeri, which lives in symbiotic harmony within the light organ of the bobtail squid, has helped a Virginia Tech microbiologist advance her research on quorum sensing, or how cells communicate and function as a community.
		V. fischeri has a lower GC content than other sequenced Vibrio species, but it is still more closely related to them than other organisms.
		One of the longest studied models of quorum sensing is the bioluminescent marine bacterium V. fischeri.
	www.eurekalert.org /pub_releases/2005-02/vt-som020705.php (596 words)

	BioMed Central \| Full text \| Gel shift analysis of the empApromoter region in Vibrio anguillarum
		Vibrio anguillarum is the causative agent of vibriosis, one of the major bacterial diseases affecting fish, bivalves, and crustaceans [1-3].
		fischeri are not the same transcriptional activator proteins [22].
		Milton DL, Norqvist A, Wolf-Watz H: Cloning of a metalloprotease gene involved in the virulence mechanism of Vibrio anguillarum.
	www.biomedcentral.com /1471-2180/4/42 (5024 words)

	Vibrio fischeri Outer Membrane Protein OmpU Plays a Role in Normal Symbiotic Colonization -- Aeckersberg et al. 183 ...
		Vibrio fischeri Outer Membrane Protein OmpU Plays a Role in Normal Symbiotic Colonization -- Aeckersberg et al.
		Millikan, D. S., Ruby, E. FlrA, a {sigma}54-Dependent Transcriptional Activator in Vibrio fischeri, Is Required for Motility and Symbiotic Light-Organ Colonization.
		Millikan, D. S., Ruby, E. Alterations in Vibrio fischeri Motility Correlate with a Delay in Symbiosis Initiation and Are Associated with Additional Symbiotic Colonization Defects.
	jb.asm.org /cgi/content/abstract/183/22/6590 (649 words)

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