Academic literature on the topic 'Crabtree'

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Journal articles on the topic "Crabtree"

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GENÇ, Tülay TURGUT, Ataberk ÇAKAN, and Melih GÜNAY. "CRABTREE POZİTİF VE CRABTREE NEGATİF MAYA TÜRLERİNDE GCR1 GENİNİN IN SILICO ANALİZİ." Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences 8, no. 17 (2021): 207–16. http://dx.doi.org/10.38065/euroasiaorg.698.

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The use of fermentation in the presence of oxygen and at high glucose concentrations is referred to as the Crabtree effect. Yeast species that have the Crabtree effect are called Crabtree positive, and yeast species that do not have the Crabtree effect are called Crabtree negative. While Crabtree negative yeast strains are mostly used for heterologous protein production in the industrial field, Crabtree positive yeast strains are used to understand metabolic events in cancer cells. The genes encoding the enzymes involved in the glycolytic pathway in S. cerevisiae yeast cells are controlled by
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Taz, Humaira. "George Crabtree." MRS Bulletin 44, no. 06 (2019): 509. http://dx.doi.org/10.1557/mrs.2019.144.

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Van Urk, H., E. Postma, W. A. Scheffers, and J. P. Van Dijken. "Glucose Transport in Crabtree-positive and Crabtree-negative Yeasts." Microbiology 135, no. 9 (1989): 2399–406. http://dx.doi.org/10.1099/00221287-135-9-2399.

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Suntara, Chanon, Anusorn Cherdthong, Suthipong Uriyapongson, Metha Wanapat, and Pin Chanjula. "Comparison Effects of Ruminal Crabtree-Negative Yeasts and Crabtree-Positive Yeasts for Improving Ensiled Rice Straw Quality and Ruminal Digestion Using In Vitro Gas Production." Journal of Fungi 6, no. 3 (2020): 109. http://dx.doi.org/10.3390/jof6030109.

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The objective of this study was to compare the effects of Crabtree-negative ruminal yeast and Crabtree-positive yeast in ensiled rice straw (RS) on the ensilage quality, nutritive value, and microorganism composition, including the evaluation of the ensiled RS using the in vitro gas production technique. The experiment was conducted in a 4 × 3 factorial arrangement in a randomized complete design. Factor A was yeast species with no inoculant, Crabtree-negative yeasts (Pichia kudriavzevii KKU20 and Candida tropicalis KKU20), and Crabtree-positive yeast (Saccharomyces cerevisae), whereas factor
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Grosso, Michael. "Interview with Adam Crabtree." Philosophical Practice: Journal of the American Philosophical Practitioners Association 2, no. 2 (2006): 119–23. http://dx.doi.org/10.1080/17428170601095473.

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Suntara, Chanon, Metha Wanapat, Sompong Chankaew, et al. "Improvement of the Nutritional Quality of Psophocarpus tetragonolobus Tubers by Fermentation with Ruminal Crabtree-Negative Yeasts on the In Vitro Digestibility and Fermentation in Rumen Fluid." Fermentation 8, no. 5 (2022): 209. http://dx.doi.org/10.3390/fermentation8050209.

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The purpose of this study was to determine how ruminal Crabtree-negative yeast affects the nutritional characteristics of winged bean (Psophocarpus tetragonolobus) tubers (WBT), in vitro gas and digestibility, and rumen fermentation. The experiment was carried out in a randomized complete design with a 5 × 2 (+1) factorial arrangement. Factor A determined the WBT products (a1 = dry WBT, a2 = fermented WBT without yeast in media solution, a3 = fermented WBT with Pichia kudriavzevii KKU20, a4 = fermented WBT with Candida tropicalis KKU20, and a5 = fermented WBT with Saccharomyces cerevisiae), wh
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Redman, Emily K., Paul S. Brookes, and Marcin K. Karcz. "Role of p90RSK in regulating the Crabtree effect: implications for cancer." Biochemical Society Transactions 41, no. 1 (2013): 124–26. http://dx.doi.org/10.1042/bst20120277.

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High glucose inhibits mitochondrial respiration, known as the ‘Crabtree effect’, in cancer cells and possibly other cell types. The upstream pathways regulating this phenomenon are poorly understood. In diabetes, where glucose levels are elevated, the p90RSK (p90 ribosomal S6 kinase) has received much attention as a potential upstream mediator of the effects of high glucose. Evidence is also emerging that p90RSK may play a role in cancer cell signalling, although the role of p90RSK in regulating cancer cell metabolism is unclear. In the present paper, we provide an overview of the Crabtree eff
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Van Urk, Hendrik, W. S. Leopold Voll, W. Alexander Scheffers, and Johannes P. Van Dijken. "Transient-State Analysis of Metabolic Fluxes in Crabtree-Positive and Crabtree-Negative Yeasts." Applied and Environmental Microbiology 56, no. 1 (1990): 281–87. http://dx.doi.org/10.1128/aem.56.1.281-287.1990.

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Seidler, G. T., T. F. Rosenbaum, and G. W. Crabtree. "Seidler, Rosenbaum, and Crabtree, Reply:." Physical Review Letters 73, no. 16 (1994): 2276. http://dx.doi.org/10.1103/physrevlett.73.2276.

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Crabtree, B., and E. A. Newsholme. "Reply from crabtree and newsholme." Trends in Biochemical Sciences 10, no. 10 (1985): 387. http://dx.doi.org/10.1016/0968-0004(85)90064-7.

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Dissertations / Theses on the topic "Crabtree"

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Pires, Joana Manuela Capela. "Efeito Crabtree em Saccharomyces cerevisiae e sua modulação por nanopartículas de dióxido de titânio." Doctoral thesis, Universidade de Évora, 2017. http://hdl.handle.net/10174/21042.

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O efeito Crabtree ou repressão do metabolismo respiratório pela glicose, detetado em diversas espécies de levedura, assemelha-se à glicólise aeróbia de células tumorais. Este estudo procurou confirmar a ocorrência dessa alteração metabólica em Saccharomyces cerevisiae UE-ME3, bem como testar a capacidade de nanopartículas de dióxido de titânio (TiO2-NP), com diferente diâmetro molecular, para modular esse fenómeno. Os resultados obtidos, confirmam que a estirpe UE-ME3 é uma levedura Crabtree positiva, uma vez que a adição de glicose a células respiratórias provocou um aumento da taxa específic
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Wardrop, Forbes Robert. "The physiology of industrial yeast in continuous culture." Thesis, Abertay University, 1999. https://rke.abertay.ac.uk/en/studentTheses/61c9f775-b287-4b25-b92c-409c78252572.

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The growth and physiology of <i>Saccharomyces cerevisiae</i> GB4918 (baker’s yeast) was studied under glucose-limitation in chemostat culture. Levels of lg/1 (0.1% w /v) glucose allowed cell growth while preventing fermentation in a defined medium (QEMM3). Metabolism of glucose by respiration or fermentation was shown to affect the mean cell volume, with fermentative use of glucose causing an increase in cell size. This was also a major physiological difference between <i>S. cerevisiae </i>GB4918 (a Crabtree positive yeast) and <i>Kliiyveromyces marxianus</i> DBVPG 6165 (a Crabtree negative ye
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Diaz, Ruiz Rodrigo Antonio. "Participation du fructose 1,6-biphosphate dans l'induction de l'effet Crabtree chez la levure Saccharomyces cerevisiae." Thesis, Bordeaux 2, 2010. http://www.theses.fr/2010BOR21720/document.

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Lorsque la levure Saccharomyces cerevisiae pousse en aérobiose, la respiration est immédiatement réprimée après l’addition de glucose au milieu de culture. Ce phénomène est appellé ”l’effet Crabtree”. Il a été rapporté que l’inhibition du flux respiratoire est concomitant avec l’accumulation cytoplasmique des hexoses phosphates provenant de la glycolyse. Dans ce travail, la levure Saccharomyces cerevisiae a été utilisée pour chercher à identifier les événements regulatoires à court terme qui sont associés à l’effet Crabtree ainsi que le possible rôle des hexoses phosphates dans l’inhibition de
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Brown, Ashley Kaye. "Investigating the Effect of Energy Substrates and LPS-activation on the In Vitro Energy Metabolism of BV-2, RAW264.7 and VM-M3 Cells." Thesis, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:106811.

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Thesis advisor: Thomas N. Seyfried<br>Two major metabolic phenomena observed in cancer cells include the Warburg effect and Crabtree effect. The Crabtree effect is the in vitro inhibition of respiration by glucose. The influence of glucose on the oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) of tumorigenic RAW264.7 and VM-M3 macrophage cells, as well as non-tumorigenic BV-2 microglia cells, was studied using the Seahorse XF96 extracellular flux analyzer. RAW264.7, VM-M3, and BV-2 cells incubated in glucose medium displayed a significantly lower OCR and higher ECAR c
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Richard, Lannig. "Impact du dioxyde de carbone sur la levure Saccharomyces cerevisiae : caractérisation du transfert liquide/gaz et implications sur les métabolismes énergétiques." Thesis, Toulouse, INSA, 2014. http://www.theses.fr/2014ISAT0041/document.

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L’objectif de ce travail est l’étude de l’impact du dioxyde de carbone (CO2) sur la physiologie et le métabolisme de la levure Saccharomyces cerevisiae, en particulier son impact sur le catabolisme oxydatif du glucose et son rôle dans le déclenchement de la transition respiro-fermentaire. Le CO2 est au coeur des interactions entre phénomènes biologiques et phénomènes physiques de transfert existant au sein d’un réacteur biologique. La compréhension de son impact sur la physiologie de la levure nécessite la connaissance de sa concentration en phase liquide et donc la maitrise des phénomènes de
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Neugnot, Benjamin. "Vers une nouvelle méthode de quantification de métabolites dans l'échantillon biologique." Paris 11, 2005. http://www.theses.fr/2005PA112045.

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La quantification des metabolites est une etape decisive dans le developpement d’un medicament. L’objectif de ce travail de these a ete la mise au point d’une nouvelle methode de quantification de metabolites, dans l’echantillon biologique, n’ayant pas les inconvenients (cout, temps, ethique) des methodes classiques qui sont basees sur la synthese des metabolites ou l’administration du principe actif radiomarque chez l’homme. Notre methode consiste a determiner les coefficients de reponse, en spectrometrie de masse, des metabolites. Elle repose sur un marquage au tritium des metabolites, par e
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Halbfeld, Christoph [Verfasser], Lars Mathias [Akademischer Betreuer] Blank, and Jörg Ingo [Akademischer Betreuer] Baumbach. "What happens in yeast during the Crabtree effect? : an investigation of S. cerevisiae’s volatile space / Christoph Halbfeld ; Lars Mathias Blank, Jörg Ingo Baumbach." Aachen : Universitätsbibliothek der RWTH Aachen, 2018. http://d-nb.info/1171821778/34.

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Hammad, Noureddine. "Étude de l’effet Warburg, à l’origine du métabolisme énergétique de la cellule cancéreuse, chez la levure Saccharomyces cerevisiae." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0180/document.

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Nous avons étudié les relations entre les différentes voies du métabolisme énergétique lors de la mise en place des effets Crabtree et Warburg. L’effet du glucose sur le métabolisme énergétique de S. cerevisiae se traduit dans un premier temps par une inhibition cinétique du métabolisme oxydatif (effet Crabtree). Après l’ajout de glucose aux cellules, nous avons mis en évidence l’accumulation d’un intermédiaire de la glycolyse, le F1,6bP. Ceci induit une diminution drastique du rapport G6P/F1,6bP. Or, il a été montré que le G6P stimule et le F1,6bP inhibe l’activité de la chaine respiratoire m
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Marc, Jillian. "Modulation par approches microbiologique et génétique de la synthèse d'acide acétique lors de la production d'éthanol sous métabolisme oxydo-réductif chez Saccharomyces cerevisiae." Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0051.

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L’objectif de ces travaux de thèse était de rechercher un potentiel effet inhibiteur de l’acide acétique endogène sur le métabolisme oxydo réductif de Saccharomyces cerevisiae, afin d’évaluer la pertinence d’une stratégie d’amélioration des capacités de production d’éthanol par la modulation de la synthèse de cet acide. Ces travaux devaient également permettre d’approfondir la compréhension des principaux facteurs commandant la synthèse de l’acide acétique et plus largement des acides organiques. La stratégie de modulation de la synthèse d’acide acétique mise en place reposait sur des approche
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Feria, Gervasio David. "Analyse Systémique de la Modulation de la bascule respiro-fermentaire chez Saccharomyces cerevisiae." Toulouse, INSA, 2008. http://eprint.insa-toulouse.fr/archive/00000226/.

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L’objective de notre travail est d’étudier la transition métabolique respiro-fermentaire chez Saccharomyces cerevisiae, plus spécifiquement d’évaluer l’importance du transport du carbone issu du métabolisme de l’acétyl-coenzymeA vers la mitochondrie. Pour ce faire, une approche originale du génie microbiologique a été mise en place basée sur l’utilisation de chémostat sur substrats mixtes. Cela consiste à introduire au cours d’un chémostat oxydatif sous limitation glucose une perturbation locale touchant le transport du carbone du cytosol vers la mitochondrie par l’apport d’un second substrat
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Books on the topic "Crabtree"

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Schabilion, Robert J. Down the Crabtree. Gem & Lapidary Wholesalers, Inc. : AuthorHouse, 2009.

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Errol, Le Cain, ed. Crisis at Crabtree. Lutterworth, 1986.

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Rees, Rob. Crabtree connections backyard cookbook. Crabtree Pub., 2011.

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United States. Forest Service. Southern Region, ed. Crabtree Falls trail guide. Pedlar Ranger District, George Washington National Forest, Forest Service, Southern Region, U.S. Dept. of Agriculture, 1993.

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Crabtree, Lucille. Basic intarsia: With Lucille Crabtree. Schiffer Pub. Ltd., 1995.

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Whitelaw, Amanda Jane. The unique style of Crabtree and Evelyn. Derbyshire College of Higher Education, 1990.

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Nolan, Lucy A. The Lizard Man of Crabtree County. Marshall Cavendish, 1999.

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Lotta Crabtree: Gold rush Fairy Star. Pelican Publishing Company, Incorporated, 2017.

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The western adventures of Zebulon Crabtree. Houghton Mifflin Harcourt, 2008.

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Tilley, John A. The ship models of August F. Crabtree. 2nd ed. Mariners' Museum, 1991.

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Book chapters on the topic "Crabtree"

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Luminet, Jean-Pierre. "Crabtree, William." In Biographical Encyclopedia of Astronomers. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4419-9917-7_312.

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Chinnici, Ileana, James M. Lattis, Mariafortuna Pietroluongo, et al. "Crabtree, William." In The Biographical Encyclopedia of Astronomers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30400-7_312.

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Baker, Tony. "Digital Crabtree: Computer Simulation of Folsom Fluting." In Folsom Technology and Lifeways. Routledge, 2021. http://dx.doi.org/10.4324/9781315428338-13.

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Passoth, Volkmar, Martin Zimmermann, and Ulrich Klinner. "Peculiarities of the Regulation of Fermentation and Respiration in the Crabtree-Negative, Xylose-Fermenting Yeast Pichia stipitis." In Seventeenth Symposium on Biotechnology for Fuels and Chemicals. Humana Press, 1996. http://dx.doi.org/10.1007/978-1-4612-0223-3_18.

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Vazquez-Serrano, Leslie D., and Jillian M. Buriak. "The Quest for Longevity and Stability of Iridium-based Hydrogenation Catalysts: N-Heterocyclic Carbenes and Crabtree′s Catalyst." In N-Heterocyclic Carbenes in Synthesis. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/9783527609451.ch10.

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Clark, John E. "Failure as Truth: An Autopsy of Crabtree's Folsom Experiments." In Folsom Technology and Lifeways. Routledge, 2021. http://dx.doi.org/10.4324/9781315428338-12.

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"Christopher Crabtree." In The Literature of the Ozarks. University of Arkansas Press, 2019. http://dx.doi.org/10.2307/j.ctv9hvrtt.48.

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McFarlane, Brian. "Arthur Crabtree." In Four from the forties. Manchester University Press, 2018. http://dx.doi.org/10.7765/9781526110565.00009.

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"CRABTREE COMES OF AGE: CRABTREE AND COUNTRY MATTERS." In Crabtree Orations 1954-1994 T. Taylor & Francis, 2003. http://dx.doi.org/10.4324/9780203213490-25.

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"XV Lotta Crabtree." In Tales of San Francisco. Stanford University Press, 1992. http://dx.doi.org/10.1515/9781503621039-015.

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Conference papers on the topic "Crabtree"

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Hu, Xidong, Shaoxiang Qian, Kaori Yamauchi, and Haruo Okochi. "CFD Prediction of Gas-Liquid Separation Efficiency of Geothermal Steam-Water Cyclone Separator Using a Verified Turbulence Model." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69258.

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The present paper aims to predict the separation efficiency and pressure drop of a vertical geothermal cyclone type separator using CFD (Computational Fluid Dynamics) simulations, for optimizing the design of such separator. A benchmark study was firstly performed for a single phase flow in a Stairmand design cyclone using four different turbulence models, in order to verify the prediction accuracy of flow velocity distribution by comparison with experimental data in literature. The investigated turbulence models include (1) Renormalization Group (RNG) k-ε, (2) Realizable k-ε, (3) Reynolds str
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