Academic literature on the topic 'Voie Gac/Rsm'
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Dissertations / Theses on the topic "Voie Gac/Rsm"
Dupont, Charly. "Caractérisatiοn mοléculaire des mécanismes de cοmmunicatiοn aérienne chez la sοuche Ρseudοmοnas fluοrescens ΜFE01." Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMR021.
Full textVolatile organic compounds (VOCs), by-products of metabolism emitted by all living organisms, arevolatile under environmental conditions due to their physicochemical properties. In bacteria, especiallythose of the genus Pseudomonas, VOCs are mainly studied for their ability to inhibit phytopathogenicmicroorganisms. Their role in communication, which is a crucial mechanism for coordinating bacterialcommunities during biofilm formation, is understudied.This research focuses on investigating VOCs emitted by the Pseudomonas fluorescens MFE01 strainand their implications in its communication. The uncharacterized communications pathways of MFE01are untypical and does not involve pathways already described in others Pseudomonas.Characterization of molecules the emitted by MFE01 reveals a huge emission of 1-undecene. A mutantlacking the undA gene, responsible for 1-undecene synthesis, no longer emits this VOC and exhibitsreduced biofilm formation capabilities. Exposure of this mutant to exogenous 1-undecene restoresbiofilm formation, Therefore, 1-undecene seems to be an intraspecific communication molecule in P.fluorescens MFE01. The undA gene seems to be in an operon with the rbdA gene, encoding a putativesensor. We hypothesize that Rbda is involved in 1-undecene perception with signal transduction likelyoccurring via the synthesis of cyclic di-guanosine monophosphate, a known secondary messenger thatinduces biofilm formation.Additionally, the study of the Gac/Rsm regulatory pathway, a critical regulator of metabolism andcommunication in Pseudomonas, demonstrates that it strongly modulates the quantity and profile ofVOCs emitted by MFE01. This pathway governs 1-undecene emission and the aerial inhibition of humanpathogen Legionella pneumophila and phytopathogen Phytophtora infestans by MFE01. At least oneVOC, possibly 2-tridecanone and/or 2-undecanone, may activate the expression of the gacS gene,which encodes the principal sensor of the Gac/Rsm pathway
Conference papers on the topic "Voie Gac/Rsm"
Kotwal, Ashish, Che-Hao Yang, and Clement Tang. "Two-Phase Flow Behavior in Channels With Sudden Area Change Using Experimental and Computational Approach." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71085.
Full textXiao, Xiu, Qingzi Zhu, Guanyi Wang, Shao-Wen Chen, Mamoru Ishii, and Yajun Zhang. "Vibration Effects on Bubbly Flow Structure in an Annulus." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-60735.
Full textZhang, Ming Ming, Joseph Katz, and Andrea Prosperetti. "Effect of Internal Bubbly Flow on Channel Vibration: Comparison Between Experiment and Model." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61613.
Full textSim, W. G., N. K. Mureithi, B. M. Bae, and M. J. Pettigrew. "Characteristics of Two-Phase Flows in Vertical Pipe." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93860.
Full textSander, Stanley P., Richard P. Cageao, Jean-Francois Blavier, James P. McGuire, Robert L. Chave, Ghanim Al-Jumaily, and David Natzic. "Atmospheric Measurements of Transient Species Using the Fourier Transform Ultraviolet Spectrometer (FTUVS)." In Fourier Transform Spectroscopy. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/fts.1995.fsac2.
Full textMurakawa, Hideki, Hiroshige Kikura, Masanori Aritomi, and Michitsugu Mori. "Measurement of Bubbly Flow in a Vertical Pipe Using Ultrasonic Doppler Method." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45384.
Full textHiroi, Takamichi, Tatsuya Hamada, Masahiko Makino, and Chiharu Kawakita. "Turbulent Structure With Microbubbles Generated by Electrolysis in a Horizontal Channel Flow." In ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fedsm2018-83027.
Full textHazuku, Tatsuya, Naohisa Tamura, Norihiro Fukamachi, Tomoji Takamasa, Takashi Hibiki, and Mamoru Ishii. "Axial Development of Vertical Upward Bubbly Flow in a Minipipe." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72413.
Full textGoridko, Kirill, Vladimir Verbitsky, Evgeny Nikonov, and Max Nikolaev. "Experimental Studies of Liquid Holdup in the Impeller of Electric Submersible Pump." In SPE Gulf Coast Section Electric Submersible Pumps Symposium. SPE, 2021. http://dx.doi.org/10.2118/204510-ms.
Full textSorge, Gregory W., and James K. von der Ehe. "Development of Low NOx Capability on the Dresser Waukesha 275GL Series Engines." In ASME 2010 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/icef2010-35030.
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