31 years old, married, one child.

Post-doctoral Research Assistant at Purdue Unversity (Indiana, USA) in the Purdue University Cytometry Laboratories (scientific director : Professor J. Paul Robinson).

PhD of oceanography at the "Université de la Méditerranée" (Aix-Marseille II, France), public defense on 12/12/2001 (highest distinction : Mention tres honorable avec les félicitations du jury)

Research field
Aquatic microbial ecology - Mineralisation of the organic matter
Keywords : ultraplankton, respiration, bacterial viability , cytometry.

Professional skills:
	- Sampling and analyses of natural samples
	- Flow cytometric and microscopic analyses of procaryotic and eucaryotic cells (nucleic acids, photosynthetic pigments, membrane potential, enzymatic activities, cell viability, etc.)
	- Handling of fluorescent dyes for flow cytometric and microscopic analyses
	- Handling of the following flow cytometers:      - FACSort and FACScalibur (Becton Dickinson),      - Cytomics FC 500, Epics XL-MCL, Epics Elite (trieur), Altra (sorter) (Coulter)      - Cytoron Absolute (Ortho-Diagnostic Systems)      - Agilent 2100 Bioanalyzer (Agilent)
	- Handling of classical, epifluorescent and confocal microscopes
	- Data analyses and presentations (talk and/or poster)
	- Scientific drafting

Scientific publications

J. P. Robinson, B. Rajwa, G. Gregori, J. Jones, V. Patsekin (2005). Multispectral cytometry of single bio-particles using a 32-channel detector. Proc. SPIE (5692) : 359-365. Advanced Biomedical and Clinical Diagnostic Systems III; Tuan Vo-Dinh, Warren S. Grundfest M.D., David A. Benaron M.D., Gerald E. Cohn; Eds.

Zhou L., G. Gregori, J. M. Blackman, J. P. Robinson and B. L. Wanner (2005) Stochastic activation of the response regulator PhoB by noncognate histidine kinases. In: Yearbook Bioinformatics 2004, R. Hofestädt (ed.), pp. 25-38. Magdeburg: IMBio, Informationsmanagement in der Biotechnologie e.V.

Wang WH, Gregori G, Hullinger RL, Andrisani OM (2004). Sustained activation of p38 mitogen-activated protein kinase and c-Jun N-terminal kinase pathways by hepatitis B virus X protein mediates apoptosis via induction of Fas/FasL and tumor necrosis factor (TNF) receptor 1/TNF-alpha expression. Mol Cell Biol. 24(23):10352-65.

G. Grégori, M. Denis, D. Lefèvre, J.C. Romano (2003). Viabilité des bactéries hétérotrophes dans la baie de Marseille. Comptes Rendus Biologie. 326 : 739-750.

B. Desnues, C. Cuny, G. Grégori, S. Dukan, H. Aguilaniu, T. Nystrom (2003). Differential oxidative damage and expression of stress defence regulons in culturable and non-culturable Escherichia coli cells. EMBO Reports 4 (4): 400-404.

G. Grégori, M. Denis, D. Lefèvre, B. Becker (2002). A flow cytometric approach to assess phytoplankton respiration. Methods in Cell Science 24: 99-106.

G. Grégori, M. Denis, S. Sgorbati, S. Citterio (2003). Resolution of viable and compromised-membrane bacteria in aquatic environments by flow cytometry. Current Protocols in Cytometry (J.P. Robinson, Z. Darzynkiewicz, W.C. Hyun, A. Orfao, P.S.and Rabinovitch, eds.) pp 11.15.1-11.15.7. J.Wiley & Sons, inc., New York.

G.Grégori, A. Colosimo, M. Denis (2001). Phytoplankton group dynamics in the bay of Marseilles during a 2-year survey based on analytical flow cytometry. Cytometry 44: 247-256.

G.Grégori, S. Citterio, A. Ghiani, M. Labra, S. Sgorbati, S. Brown, M. Denis (2001) Resolution of viable and membrane compromised bacteria in fresh and marine waters based on analytical flow cytometry and nucleic acid double staining. Applied and Environmental Microbiology 67: 4662-4670.

Christaki U., Giannakourou A., Van Wambeke F. and Grégori G. (2001) Nanoflagellate predation on auto- and heterotrophic picoplankton in the oligotrophic Mediterranean Sea. Journal of Plankton Research 23: 1297-1310.

Grégori G. (2001) Ultraphytoplankton in the Bay of Marseilles : time series, cell respiration and bacterial viability. Thesis, Université de la Méditerranée, Marseilles, France.

Grégori G. (2002) Ultraphytoplankton in the Bay of Marseilles : time series, cell respiration and bacterial viability. JRO 27(2): 109-111.

U. Christaki, A. Giannakourou, F. Van Wambeke, G. Gregori (2000). Picoplankton and nanoplankton coupling in the euphotic zone of the Mediterranean Sea. CIESM Workshop Series 11 : 25-26

 

Miscellaneous