Name: rearing the fruit fly drosophila melanogaster under axenic and gnotobiotic conditions
Uploaded: 2016-07-30T14:00:00
Description: Watch this Scientific Journal Video about Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions at JoVE.com

Einige Details dieses Protokoll wurden mit Unterstützung von Dr. Adam Dobson optimiert, der auch hilfreiche Kommentare zum Manuskript zur Verfügung gestellt. Diese Arbeit wurde von der Stiftung für die National Institutes of Health (FNIH) Gewährungsnummer R01GM095372 (JMC, A (CN) W, AJD und AED) unterstützt wurde. FNIH Gewährungsnummer 1F32GM099374-01 (PDN) und Brigham Young University Startfonds (JMC, MLK, MV). Publikationskosten wurden von der Brigham Young University College of Life Sciences und Department of Plant and Wildlife Sciences unterstützt.

1. Kultur Bakterien (Start ~ 1 Woche vor der Eier Picking) <ol><li> Bereiten modifizierten MRS 20 (MMRs) -Platten und Brühe Rohre (Tabelle 1). Gießen Sie 20 ml MMRS Agar in jede 100 mm Petrischale und erlauben / trocken über Nacht abkühlen, oder 5 ml MMRS Brühe in 18 mm-Teströhrchen. </li><li> Streak Acetobacter pomorum, A. tropicalis, Lactobacillus brevis und L. plantarum auf MMRS Agarplatten. Inkubieren Acetobacter über Nacht bei 30 ° C...

<ol>
	<li>McFall-Ngai, M. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Giving+microbes+their+due--animal+life+in+a+microbially+dominant+world.">Giving microbes their due--animal life in a microbially dominant world.</a> J Exp Biol. 218, 1968-1973 (2015).</li><li>Smith, K., McCoy, K. D., Macpherson, A. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Use+of+axenic+animals+in+studying+the+adaptation+of+mammals+to+their+commensal+intestinal+microbiota.">Use of axenic animals in studying the adaptation of mammals to their commensal intestinal microbiota.</a> Semin Immunol. 19 (2), 59-69 (2007).</li><li>Rieder, L. E., Larschan, E. N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Wisdom+from+the+fly.">Wisdom from the fly.</a> Trends Genet. 30 (11), 479-481 (2014).</li><li>Arias, A. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Drosophila+melanogaster+and+the+development+of+biology+in+the+20th+century.">Drosophila melanogaster and the development of biology in the 20th century.</a> Methods Mol Biol. 420, 1-25 (2008).</li><li>Lee, W. J., Brey, P. T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=How+microbiomes+influence+metazoan+development:+insights+from+history+and+Drosophila+modeling+of+gut-microbe+interactions.">How microbiomes influence metazoan development: insights from history and Drosophila modeling of gut-microbe interactions.</a> Annu Rev Cell Dev Biol. 29, 571-592 (2013).</li><li>Erkosar, B., Leulier, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transient+adult+microbiota,+gut+homeostasis+and+longevity:+novel+insights+from+the+Drosophila+model.">Transient adult microbiota, gut homeostasis and longevity: novel insights from the Drosophila model.</a> FEBS Lett. 588 (22), 4250-4257 (2014).</li><li>Chandler, J. A., Lang, J. M., Bhatnagar, S., Eisen, J. A., Kopp, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bacterial+communities+of+diverse+Drosophila+species:+ecological+context+of+a+host-microbe+model+system.">Bacterial communities of diverse Drosophila species: ecological context of a host-microbe model system.</a> PLoS Genet. 7 (9), e1002272 (2011).</li><li>Broderick, N. A., Buchon, N., Lemaitre, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microbiota-induced+changes+in+drosophila+melanogaster+host+gene+expression+and+gut+morphology.">Microbiota-induced changes in drosophila melanogaster host gene expression and gut morphology.</a> MBio. 5 (3), 01117 (2014).</li><li>Wong, C. N., Ng, P., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Low-diversity+bacterial+community+in+the+gut+of+the+fruitfly+Drosophila+melanogaster.">Low-diversity bacterial community in the gut of the fruitfly Drosophila melanogaster.</a> Environ Microbiol. 13 (7), 1889-1900 (2011).</li><li>Staubach, F., Baines, J. F., Kunzel, S., Bik, E. M., Petrov, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Host+species+and+environmental+effects+on+bacterial+communities+associated+with+Drosophila+in+the+laboratory+and+in+the+natural+environment.">Host species and environmental effects on bacterial communities associated with Drosophila in the laboratory and in the natural environment.</a> PLoS One. 8 (8), e70749 (2013).</li><li>Brummel, T., Ching, A., Seroude, L., Simon, A. F., Benzer, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Drosophila+lifespan+enhancement+by+exogenous+bacteria.">Drosophila lifespan enhancement by exogenous bacteria.</a> Proc Natl Acad Sci U S A. 101 (35), 12974-12979 (2004).</li><li>Cox, C. R., Gilmore, M. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Native+microbial+colonization+of+Drosophila+melanogaster+and+its+use+as+a+model+of+Enterococcus+faecalis+pathogenesis.">Native microbial colonization of Drosophila melanogaster and its use as a model of Enterococcus faecalis pathogenesis.</a> Infect Immun. 75 (4), 1565-1576 (2007).</li><li>Ridley, E. V., Wong, A. C., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microbe-dependent+and+nonspecific+effects+of+procedures+to+eliminate+the+resident+microbiota+from+Drosophila+melanogaster.">Microbe-dependent and nonspecific effects of procedures to eliminate the resident microbiota from Drosophila melanogaster.</a> Appl Environ Microbiol. 79 (10), 3209-3214 (2013).</li><li>Rogers, G. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+divergence+in+gastrointestinal+microbiota+in+physically-separated+genetically+identical+mice.">Functional divergence in gastrointestinal microbiota in physically-separated genetically identical mice.</a> Sci Rep. 4, 5437 (2014).</li><li>Chaston, J. M., Newell, P. D., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Metagenome-wide+association+of+microbial+determinants+of+host+phenotype+in+Drosophila+melanogaster.">Metagenome-wide association of microbial determinants of host phenotype in Drosophila melanogaster.</a> MBio. 5 (5), 01631-01714 (2014).</li><li>Huang, J. H., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Consumption+of+dietary+sugar+by+gut+bacteria+determines+Drosophila+lipid+content.">Consumption of dietary sugar by gut bacteria determines Drosophila lipid content.</a> Biology Letters. , (2015).</li><li>Shin, S. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Drosophila+microbiome+modulates+host+developmental+and+metabolic+homeostasis+via+insulin+signaling.">Drosophila microbiome modulates host developmental and metabolic homeostasis via insulin signaling.</a> Science. 334 (6056), 670-674 (2011).</li><li>Storelli, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lactobacillus+plantarum+promotes+Drosophila+systemic+growth+by+modulating+hormonal+signals+through+TOR-dependent+nutrient+sensing.">Lactobacillus plantarum promotes Drosophila systemic growth by modulating hormonal signals through TOR-dependent nutrient sensing.</a> Cell Metab. 14 (3), 403-414 (2011).</li><li>Wong, A. C., Chaston, J. M., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+inconstant+gut+microbiota+of+Drosophila+species+revealed+by+16S+rRNA+gene+analysis.">The inconstant gut microbiota of Drosophila species revealed by 16S rRNA gene analysis.</a> ISME J. 7 (10), 1922-1932 (2013).</li><li>Newell, P. D., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Interspecies+interactions+determine+the+impact+of+the+gut+microbiota+on+nutrient+allocation+in+Drosophila+melanogaster.">Interspecies interactions determine the impact of the gut microbiota on nutrient allocation in Drosophila melanogaster.</a> Appl Environ Microbiol. 80 (2), 788-796 (2014).</li><li>Broderick, N. A., Lemaitre, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Gut-associated+microbes+of+Drosophila+melanogaster.">Gut-associated microbes of Drosophila melanogaster.</a> Gut Microbes. 3 (4), 307-321 (2012).</li><li>Ren, C., Webster, P., Finkel, S. E., Tower, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Increased+internal+and+external+bacterial+load+during+Drosophila+aging+without+life-span+trade-off.">Increased internal and external bacterial load during Drosophila aging without life-span trade-off.</a> Cell Metab. 6 (2), 144-152 (2007).</li><li>Wong, A. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Host+as+the+Driver+of+the+Microbiota+in+the+Gut+and+External+Environment+of+Drosophila+melanogaster.">The Host as the Driver of the Microbiota in the Gut and External Environment of Drosophila melanogaster.</a> Appl Environ Microbiol. 81 (18), 6232-6240 (2015).</li><li>Dobson, A. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Host+genetic+determinants+of+microbiota-dependent+nutrition+revealed+by+genome-wide+analysis+of+Drosophila+melanogaster.">Host genetic determinants of microbiota-dependent nutrition revealed by genome-wide analysis of Drosophila melanogaster.</a> Nat Commun. 6, 6312 (2015).</li><li>Bakula, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+persistence+of+a+microbial+flora+during+postembryogenesis+of+Drosophila+melanogaster.">The persistence of a microbial flora during postembryogenesis of Drosophila melanogaster.</a> J Invertebr Pathol. 14 (3), 365-374 (1969).</li><li>Ryu, J. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Innate+immune+homeostasis+by+the+homeobox+gene+caudal+and+commensal-gut+mutualism+in+Drosophila.">Innate immune homeostasis by the homeobox gene caudal and commensal-gut mutualism in Drosophila.</a> Science. 319 (5864), 777-782 (2008).</li><li>Blum, J. E., Fischer, C. N., Miles, J., Handelsman, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Frequent+replenishment+sustains+the+beneficial+microbiome+of+Drosophila+melanogaster.">Frequent replenishment sustains the beneficial microbiome of Drosophila melanogaster.</a> MBio. 4 (6), 00860 (2013).</li><li>Bitner-Mathe, B. C., Klaczko, L. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Plasticity+of+Drosophila+melanogaster+wing+morphology:+effects+of+sex,+temperature+and+density.">Plasticity of Drosophila melanogaster wing morphology: effects of sex, temperature and density.</a> Genetica. 105 (2), 203-210 (1999).</li><li>Edward, D. A., Chapman, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sex-specific+effects+of+developmental+environment+on+reproductive+trait+expression+in+Drosophila+melanogaster.">Sex-specific effects of developmental environment on reproductive trait expression in Drosophila melanogaster.</a> Ecol Evol. 2 (7), 1362-1370 (2012).</li><li>Ridley, E. V., Wong, A. C., Westmiller, S., Douglas, A. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Impact+of+the+resident+microbiota+on+the+nutritional+phenotype+of+Drosophila+melanogaster.">Impact of the resident microbiota on the nutritional phenotype of Drosophila melanogaster.</a> PLoS One. 7 (5), e36765 (2012).</li><li>Newell, P. D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=In+vivo+function+and+comparative+genomic+analyses+of+the+Drosophila+gut+microbiota+identify+candidate+symbiosis+factors.">In vivo function and comparative genomic analyses of the Drosophila gut microbiota identify candidate symbiosis factors.</a> Front Microbiol. 5, 576 (2014).</li><li>Dewhirst, F. E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Phylogeny+of+the+defined+murine+microbiota:+altered+Schaedler+flora.">Phylogeny of the defined murine microbiota: altered Schaedler flora.</a> Appl Environ Microbiol. 65 (8), 3287-3292 (1999).</li><li>Min, K. T., Benzer, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Wolbachia,+normally+a+symbiont+of+Drosophila,+can+be+virulent,+causing+degeneration+and+early+death.">Wolbachia, normally a symbiont of Drosophila, can be virulent, causing degeneration and early death.</a> Proc Natl Acad Sci U S A. 94 (20), 10792-10796 (1997).</li></ol>

<html> Das hier beschriebene Verfahren ist eines von mehreren Ansätzen für Embryo dechorionation 8,11,18,25,26,27, zusammen mit alternativen Methoden der axenic Fliegen Aufzucht, einschließlich der seriellen Übertragung von axenic Erwachsene 18,27 oder Antibiotika - Behandlung 13,18. Andere dechorionation Methoden schließen Ethanol wäscht und reduzieren 11,25,26 oder 8 Hypochlorit Behandlung verlängern. Verschiedene Waschschritte helfen können verschiedene Fl...

An erratum was issued for: <a href="https://www.jove.com/t/54219/rearing-fruit-fly-drosophila-melanogaster-under-axenic-gnotobiotic">Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions</a>. The Protocol was updated.
Step 6.1.4.2 of the Protocol was updated from:
If using the 4 species described here, normalize cells to equivalent colony forming unit (CFU)/ml densities (OD600 to CFU conversion determined previously20) using this equation: 
E = ((O-B) x V x D)/C 
where E = volume to resuspend pellet in (&#956;l), O = OD600 bacteria, B = OD600 blank media, D = fold-dilution, V = &#181;l bacterial culture prior to centrifugation, C = OD600 of predetermined constant. See Supplemental Code File for examples of calculations using these equations. For spectrophotometers that automatically blank, use &#34;O&#34; in place of &#34;O-B&#34;. 
Note: The predetermined constants (units OD600, normalized to 107 CFU ml-1, constants derived in20) are as follows: A. tropicalis (0.052), A. pomorum (0.038), L. brevis (0.056), L. plantarum (0.077).
to:
If using the 4 species described here, normalize cells to equivalent colony forming unit (CFU)/ml densities (OD600 to CFU conversion determined previously20) using this equation: 
E = ((O-B) x V x D)/C 
where E = volume to resuspend pellet in (&#956;l), O = OD600 bacteria, B = OD600 blank media, D = fold-dilution, V = &#181;l bacterial culture prior to centrifugation, C = OD600 of predetermined constant. See Supplemental Code File for examples of calculations using these equations. For spectrophotometers that automatically blank, use &#34;O&#34; in place of &#34;O-B&#34;. 
Note: The predetermined constants (units OD600, normalized to 107 CFU ml-1, constants derived in20) are as follows: A. tropicalis (0.053), A. pomorum (0.038), L. brevis (0.077), L. plantarum (0.056).

An erratum was issued for: <a href="https://www.jove.com/t/54219/rearing-fruit-fly-drosophila-melanogaster-under-axenic-gnotobiotic">Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions</a>. The Protocol was updated.

Erratum: Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions

Die meisten Tiere sind eng mit Bakterien ( &#39;Mikrobiota&#39;) von der Geburt bis zum Tod 1 verbunden. Vergleiche von Mikroorganismen frei ( &#39;axenic&#39;) und Mikroorganismen verbunden sind ( &quot;konventionelle&quot;) Tiere haben Mikroben verschiedene Aspekte der Tiergesundheit beeinflussen gezeigt, einschließlich Stoffwechsel, Ernährung, Kreislauf-, Leber-, Atemwegserkrankungen, immunologische, endokrine und neurologische Funktion 2. Die Fruchtfliege Drosophila melanogaster ist ein Schlüsselmodell für 3,4 in Gegenwart von Mikroben viele dieser Prozesse verstehen und Mikrobiota Einfluss auf die Tiergesundheit 5,6 für das Studium. Keine Bakterienarten ist in jedem einzelnen ( &quot;Core&quot;), aber Acetobacter und Lactobacillus - Arten , die Mikrobiota sowohl im Labor aufgezogen und wild gefangenen D. numerisch dominieren melanogaster. Andere Acetobacteraceae (einschließlich Komagataeibacter und Gluconobacter), Firmicutes (wie Enterococcus und Leuconostoc) und Enterobacteriaceae sind häufig entweder in Drosophila Individuen in geringer Menge vorhanden, oder unregelmäßig in hohen Fülle 12.07. Die Mikrobiota von Drosophila und Säugetieren 14,19 innerhalb und zwischen den Generationen inkonstant. Mikrobiota Unbeständigkeit kann zu phänotypischen Rauschen führen, wenn Mikrobiota abhängigen Merkmale zu messen. Zum Beispiel kann der Acetobacteraceae Einfluss Lipid (Triglycerid) Lagerung in Drosophila 15-18. Wenn Acetobacteraceae häufiger in Fliegen eines Fläschchens sind als in einem anderen 19 kann isogenen Fliegen unterschiedlichen Phänotypen 20 haben. Eine Lösung für das Problem der Mikrobiota Unbeständigkeit bei Mäusen 14 hat sich seit den 1960er Jahren in der Praxis gewesen, indem eine definierte Gemeinschaft von 8 dominanten mikrobiellen Spezies Maus Welpen jede neue Generation (veränderte Schädler Flora) die Einführung,sicherzustellen, dass jeder Welpe den gleichen Schlüssel Mitglieder der Maus Mikrobiota ausgesetzt ist. Diese Praxis steuert für microbiota Zusammensetzung selbst wenn der Mikrobioten nicht das primäre Ziel der Studie 32 und setzt Präzedenzfall das Vorhandensein von Schlüssel Mikroben in einer Vielzahl von experimentellen Bedingungen zu gewährleisten. Um den Einfluss von Mikroben auf Drosophila Ernährung, verschiedene Protokolle zur Ableitung axenic Fliegenlinien definieren , wurden entwickelt, einschließlich Hypochlorit dechorionation von Embryonen (entweder abgeleitet de novo jeder Generation oder generations durch Übertragung auf sterile Nahrung gehalten) und Antibiotika - Behandlung 13. Es gibt Vorteile für unterschiedliche Ansätze, wie die Leichtigkeit und die Schnelligkeit für die beiden Antibiotika - Behandlung und eine serielle Übertragung, im Vergleich zu mehr Kontrolle über Störvariablen mit de novo dechorionation (zB Eierdichte, Rest kontaminierenden Mikroben, off-target antibiotische Wirkung). Unabhängig von der Methode derVorbereitung, Einführung bestimmter Mikrobenarten Embryonen Axenische erlaubt Kultur von Drosophila mit definierten ( &#39;gnotobiotischer&#39;) Gemeinden. Alternativ imitiert die Verwendung von Schädler Flora könnte diese Gemeinschaft zu konventionell gelegte Eier (entsprechend den Schritten 6-7 nur) geimpft werden, um die Anwesenheit von Charakterzug beeinflussenden Mikroben in jedem Fläschchen und vermeiden Komplikationen der Mikrobiota Unbeständigkeit zu gewährleisten. Hier beschreiben wir das Protokoll für die durch de novo dechorionation von Embryonen axenischen und gnotobiotischen Drosophila Anheben und zur Bestätigung der Anwesenheit von eingeführt oder kontaminierende mikrobiellen Taxa.

<table border="0" cellpadding="0" cellspacing="0" width="851">
	<tbody>
		<tr height="20">
			<td height="20" style="height:20px;width:259px;">Brewer&#39;s Yeast</td>
			<td style="width:291px;">MP Biomedicals, LLC.</td>
			<td style="width:108px;">903312</td>
			<td style="width:195px;">http://www.mpbio.com/product.php?pid=02903312</td>
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			<td height="20" style="height:20px;">Glucose</td>
			<td>Sigma Aldrich</td>
			<td>158968-3KG</td>
			<td>http://www.sigmaaldrich.com/catalog/product/aldrich/158968?lang=en&#38;region=US</td>
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		<tr height="20">
			<td height="20" style="height:20px;">Agar</td>
			<td>Fisher--Lab Scientific</td>
			<td>fly802010</td>
			<td>https://www.fishersci.com/shop/products/drosophila-agar-8-100mesh-10kg/nc9349177</td>
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		<tr height="20">
			<td height="20" style="height:20px;">Welch&#39;s 100% Grape Juice Concentrate</td>
			<td>Walmart or other grocery store</td>
			<td>9116196</td>
			<td>http://www.walmart.com/ip/Welch-s-Frozen-100-Grape-Juice-Concentrate-11.5-oz/10804406</td>
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			<td height="20" style="height:20px;">Cage: 32 oz. Translucent Round Deli Container</td>
			<td>Webstaurant Store</td>
			<td>999L5032Y</td>
			<td>http://www.webstaurantstore.com/newspring-delitainer-sd5032y-32-oz-translucent-round-deli-container-24-pack/999L5032Y.html</td>
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			<td height="20" style="height:20px;">Translucent Round Deli Container Lid</td>
			<td>Webstaurant Store</td>
			<td>999YNL500</td>
			<td>http://www.webstaurantstore.com/newspring-delitainer-ynl500-translucent-round-deli-container-lid-60-pack/999YNL500.html</td>
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			<td height="20" style="height:20px;">Stock Bottles</td>
			<td>Genesee Scientific</td>
			<td style="width:108px;">32-130</td>
			<td>https://geneseesci.com/shop-online/product-details/?product=32-130</td>
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			<td height="20" style="height:20px;">Droso-Plugs</td>
			<td>Genesee Scientific</td>
			<td style="width:108px;">49-101</td>
			<td>https://geneseesci.com/shop-online/product-details/?product=49-101</td>
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			<td height="20" style="height:20px;">Nylon Mesh</td>
			<td>Genesee Scientific</td>
			<td>57-102&#160;</td>
			<td>https://geneseesci.com/shop-online/product-details/715/?product=57-102</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Plastic Bushing</td>
			<td>Home Depot</td>
			<td style="width:108px;">100343125</td>
			<td>http://www.homedepot.com/p/Halex-2-1-2-in-Rigid-Insulated-Plastic-Bushing-75225/100343125</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Specimen Cup</td>
			<td>MedSupply Partners</td>
			<td>K01-207067</td>
			<td>http://www.medsupplypartners.com/covidien-specimen-containers.html</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Repeater M4</td>
			<td>Eppendorf</td>
			<td>4982000322</td>
			<td>https://online-shop.eppendorf.us/US-en/Manual-Liquid-Handling-44563/Dispensers--Burettes-44566/Repeater-M4-PF-44619.html</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">50 ml Centrifuge Tubes</td>
			<td>Laboratory Product Sales</td>
			<td>TR2003</td>
			<td>https://www.lpsinc.com/Catalog4.asp?catalog_nu=TR2003</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Food Boxes</td>
			<td>USA Scientific</td>
			<td>2316-5001</td>
			<td>http://www.usascientific.com/search.aspx?find=2316-5001</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Lysing Matrix D Bulk</td>
			<td>MP Biomedicals, LLC.</td>
			<td>116540434</td>
			<td>http://www.mpbio.com/search.php?q=6540-434&#38;s=Search</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Filter Pipette Tips, 300&#956;l</td>
			<td>USA Scientific</td>
			<td>1120-9810</td>
			<td>http://www.usascientific.com/search.aspx?find=1120-9810</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Petri Dishes</td>
			<td>Laboratory Product Sales</td>
			<td>M089303</td>
			<td>https://www.lpsinc.com/Catalog4.asp?catalog_nu=M089303</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Ethanol</td>
			<td>Decon Laboratories, INC.</td>
			<td>2701</td>
			<td>http://www.deconlabs.com/products.php?ID=88</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Paintbrush</td>
			<td>Walmart</td>
			<td>5133</td>
			<td>http://www.walmart.com/ip/Chenille-Kraft-5133-Acrylic-Handled-Brush-Set-Assorted-Sizes-colors-8-Brushes-set/41446005</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Forceps</td>
			<td>Fisher</td>
			<td>08-882</td>
			<td>https://www.fishersci.com/shop/products/fisherbrand-medium-pointed-forceps-3/p-128693</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Household Bleach (6-8% Hypochlorite)</td>
			<td>Walmart</td>
			<td>550646751</td>
			<td>http://www.walmart.com/ip/Clorox-Concentrated-Regular-Bleach-121-fl-oz/21618295</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Universal Peptone</td>
			<td>Genesee Scientific</td>
			<td>20-260</td>
			<td>https://geneseesci.com/shop-online/product-details/?product=20-260</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Yeast Extract</td>
			<td>&#160;Fisher Scientific</td>
			<td>BP1422-500</td>
			<td>https://www.fishersci.com/shop/products/fisher-bioreagents-microbiology-media-additives-yeast-extract-3/bp1422500?matchedCatNo=BP1422500</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Dipotassium Phosphate</td>
			<td>Sigma Aldrich</td>
			<td>P3786-1KG</td>
			<td>http://www.sigmaaldrich.com/catalog/search?term=P3786-1KG&#38;interface=All&#38;N=0&#38;mode=match%20partialmax&#38;lang=en&#38;region=US&#38;focus=product</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Ammonium Citrate</td>
			<td>Sigma Aldrich</td>
			<td>25102-500g</td>
			<td>http://www.sigmaaldrich.com/catalog/search?term=25102-500g&#38;interface=All&#38;N=0&#38;mode=match%20partialmax&#38;lang=en&#38;region=US&#38;focus=product</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Sodium Acetate</td>
			<td>VWR</td>
			<td>97061-994</td>
			<td>https://us.vwr.com/store/catalog/product.jsp?catalog_number=97061-994</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Magnesium Sulfate</td>
			<td>Fisher Scientific</td>
			<td>M63-500</td>
			<td>https://www.fishersci.com/shop/products/magnesium-sulfate-heptahydrate-crystalline-certified-acs-fisher-chemical-3/m63500?matchedCatNo=M63500</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Manganese Sulfate</td>
			<td>Sigma Aldrich</td>
			<td>10034-96-5</td>
			<td>http://www.sigmaaldrich.com/catalog/search?term=10034-96-5&#38;interface=CAS%20No.&#38;N=0&#38;mode=match%20partialmax&#38;lang=en&#38;region=US&#38;focus=product</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">MRS Powder</td>
			<td>Sigma Aldrich</td>
			<td style="width:108px;">69966-500G</td>
			<td>http://www.sigmaaldrich.com/catalog/product/sial/69966?lang=en&#38;region=US</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">96 Well Plate Reader</td>
			<td>BioTek (Epoch)&#160;</td>
			<td>NA</td>
			<td>http://www.biotek.com/products/microplate_detection/epoch_microplate_spectrophotometer.html</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">1.7 ml Centrifuge Tubes</td>
			<td>USA Scientific</td>
			<td>1615-5500</td>
			<td>http://www.usascientific.com/search.aspx?find=1615-5500</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Filter Pipette Tips, 1000&#956;l</td>
			<td>USA Scientific</td>
			<td>1122-1830</td>
			<td>http://www.usascientific.com/search.aspx?find=1122-1830</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">96 Well Plates</td>
			<td>Greiner Bio-One</td>
			<td>655101</td>
			<td>https://shop.gbo.com/en/usa/articles/catalogue/article/0110_0040_0120_0010/13243/</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Ceramic Beads</td>
			<td>MP Biomedicals, LLC.</td>
			<td>6540-434</td>
			<td>http://www.mpbio.com/product.php?pid=116540434</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Tissue Homogenizer</td>
			<td>MP Biomedicals, LLC.</td>
			<td>116004500</td>
			<td>http://www.mpbio.com/product.php?pid=116004500</td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;">Class 1 BioSafety Cabinet</td>
			<td>Thermo Scientific&#160;</td>
			<td>Model 1395</td>
			<td>http://www.thermoscientific.com/en/product/1300-series-class-ii-type-a2-biological-safety-cabinet-packages.html</td>
		</tr>
	</tbody>
</table>

rearing the fruit fly drosophila melanogaster under axenic and gnotobiotic conditions

The influence of microbes on myriad animal traits and behaviors has been increasingly recognized in recent years. The fruit fly Drosophila melanogaster is a model for understanding microbial interactions with animal hosts, facilitated by approaches to rear large sample sizes of Drosophila under microorganism-free (axenic) conditions, or with defined microbial communities (gnotobiotic). This work outlines a method for collection of Drosophila embryos, hypochlorite dechorionation and sterilization, and transfer to sterile diet. Sterilized embryos are transferred to sterile diet in 50 ml centrifuge tubes, and developing larvae and adults remain free of any exogenous microbes until the vials are opened. Alternatively, flies with a defined microbiota can be reared by inoculating sterile diet and embryos with microbial species of interest. We describe the introduction of 4 bacterial species to establish a representative gnotobiotic microbiota in Drosophila. Finally, we describe approaches for confirming bacterial community composition, including testing if axenic Drosophila remain bacteria-free into adulthood.

Erfolgreiche Aufzucht von axenic Fliegen wird durch Isolierung ohne KBE von Ganzkörper - Homogenisierungen von D. bestätigt melanogaster Erwachsenen (Abbildung 1). Alternativ, wenn das plattierte Homogenat Kolonien ergibt, werden die Vials kontaminiert und muss entsorgt werden. Für gnotobiotischen Fliegen wurden jeden der vier Bakterien Isolate aus Pools von 5 erwachsenen Männchen getrennt, Unterschiede in Gesamtkeim CFUs demonstrieren mit erwachsen...

Watch this Scientific Journal Video about Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions at JoVE.com

Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions

Verfahren zur Aufzucht von Drosophila melanogaster unter axenic und gnotobiotischer Bedingungen vorgestellt. Fly Embryonen werden in Natriumhypochlorit, aseptisch in sterile Ernährung dechorionated und aufgezogen in geschlossenen Behältern. Impfen Ernährung und Embryonen mit Bakterien führt zu gnotobiotischer Verbänden und bakterielle Präsenz wird durch Plattierung Ganzkörper- Drosophila Homogenate bestätigt.

Aufzucht der Fruit Fly<em&gt; Drosophila melanogaster</em&gt; Unter Axenic und gnotobiotische Bedingungen

The influence of microbes on myriad animal traits and behaviors has been increasingly recognized in recent years. The fruit fly Drosophila melanogaster is ...

Research

JoVE Journal

Developmental Biology

Rearing the Fruit Fly Drosophila melanogaster Under Axenic and Gnotobiotic Conditions

Assaying Blood Cell Populations of the Drosophila melanogaster Larva

Assaying Blood Cell Populations of the Drosophila melanogaster Larva

Untersuchung von Blut Zellpopulationen des<em&gt; Drosophila melanogaster</em&gt; Larva

In vertebrates, hematopoiesis is regulated by inductive microenvironments (niches). Likewise, in the invertebrate model organism&#160;Drosophila ...

Forschung

Entwicklungsbiologie

Production and Administration of Therapeutic Mesenchymal Stem/Stromal Cell (MSC) Spheroids Primed in 3-D Cultures Under Xeno-free Conditions

Production and Administration of Therapeutic Mesenchymal Stem/Stromal Cell MSC Spheroids Primed in 3-D Cultures Under Xeno-free Conditions

Herstellung und Verabreichung von therapeutischen mesenchymalen Stamm- / Stroma-Zellen (MSC) Sphäroiden Primed in 3-D-Kulturen unter Xeno freien Bedingungen

Mesenchymal stem/stromal cells (MSCs) hold great promise in bioengineering and regenerative medicine. MSCs can be isolated from multiple adult tissues via ...

Protocols for Visualizing Steroidogenic Organs and Their Interactive Organs with Immunostaining in the Fruit Fly Drosophila melanogaster

Protocols for Visualizing Steroidogenic Organs and Their Interactive Organs with Immunostaining in the Fruit Fly Drosophila melanogaster

Protokolle für die Visualisierung Steroidogenic Organe und deren Interactive Organe mit Immunostaining in der Fruchtfliege<em&gt; Drosophila melanogaster</em

In multicellular organisms, a small group of cells is endowed with a specialized function in their biogenic activity, inducing a systemic response ...

Dissection and Immunofluorescent Staining of Mushroom Body and Photoreceptor Neurons in Adult Drosophila melanogaster Brains

Dissection and Immunofluorescent Staining of Mushroom Body and Photoreceptor Neurons in Adult Drosophila melanogaster Brains

Dissektion, Immunofluorescent Färbung der Pilz Körper und Photorezeptor Neuronen im Gehirn Erwachsener Taufliege melanogaster

Nervous system development involves a sequential series of events that are coordinated by several signaling pathways and regulatory networks. Many of the ...

Induction of Endothelial Differentiation in Cardiac Progenitor Cells Under Low Serum Conditions

Induktion der endothelialen Differenzierung in kardialen Vorläuferzellen unter niedrigen Serum-Bedingungen

Cardiac progenitor cells (CPCs) may have therapeutic potential for cardiac regeneration after injury. In the adult mammalian heart, intrinsic CPCs are ...

Thawing, Culturing, and Cryopreserving Drosophila Cell Lines

Thawing, Culturing, and Cryopreserving Drosophila Cell Lines

Auftauen, Kultivierung und Cryopreserving Drosophila -Zell-Linien

There are currently over 160 distinct Drosophila cell lines distributed by the Drosophila Genomics Resource Center (DGRC). With genome engineering, the ...

Methods to Test Endocrine Disruption in Drosophila melanogaster

Methods to Test Endocrine Disruption in Drosophila melanogaster

Methoden zur Prüfung der endokkrinen Disruption bei Drosophila melanogaster

In recent years there has been growing evidence that all organisms and the environment are exposed to hormone-like chemicals, known as endocrine disruptor ...

Assay for Blood-brain Barrier Integrity in Drosophila melanogaster

Assay for Blood-brain Barrier Integrity in Drosophila melanogaster

Assay für Blut - Hirn-Barriere Integrität in Drosophila melanogaster

Proper nervous system development includes the formation of the blood-brain barrier, the diffusion barrier that tightly regulates access to the nervous ...

Efficient Differentiation of Postganglionic Sympathetic Neurons using Human Pluripotent Stem Cells under Feeder-free and Chemically Defined Culture Conditions

Effiziente Differenzierung postganglionischer Sympathika-Neuronen mit humanen pluripotenten Stammzellen unter feederfreien und chemisch definierten Kulturbedingungen

Human pluripotent stem cells (hPSCs) have become a powerful tool for disease modeling and the study of human embryonic development in vitro. We previously ...