Gérald GREGORI
Laboratoire de Microbiologie, de Géochimie et d 'Ecologie Marines
LMGEM - CNRS UMR 6117
Campus de Luminy - Bât TPR1 - Entrée G - Case 901
13288 Marseille cedex 9
Tél. : (+33) 4.91.82.91.14
Fax : (+33) 4.91.82.96.41

gregori@com.univ-mrs.fr


Docteur de l'Université de la Méditerranée

mention "Sciences de l'Environnement Marin"




Thé
matique Scientifique :
Microbiologie fonctionnelle



French version English version
Who am I?
CV  (short)

TECHNICAL AND ANALYTICAL SKILLS

My works during the Ph.D.
SUMMARY
MANUSCRIPT (pdf format)

My field of research

My favorite scientific tools
FLOW CYTOMETRY
MICROSCOPY


Life in the USA...


USEFUL LINKS

 

TECHNICAL AND ANALYTICAL SKILLS

 

Sampling and preparation of natural aquatic samples


- Sampling and analyses of natural freshwater and marine samples
- Filtrations, fixation (Ethanol, Paraformaldéhyde) of natural samples
- Measure of O2 concentration by photometry (Winkler method)
- Microbiological classical methods: Bacterial cultures and monospecific cultures of autotrophic aquatic microorganisms (Chlorophyceae, Bacylariophyceae)

 

Flow Cytometry

- Technical Skills:

- Handling of benchtop cytometers (CYTORON ABSOLUTE (Ortho Diagnostic Systems), CYTOMICS FC500 et EPICS XL-MCL (Beckman-Coulter), FACScalibur (Becton Dickinson),Agilent 2100 Bioanalyzer (Agilent Technologies)) ;
- Handling of sorters (Epics Elite and Altra (Beckman-Coulter)) ;
- Installation, alignment of air and water-cooled lasers;
- Installation of fiber optic
- Optical alignment of one or several lasers (colinearity);
- Development of new technologies at the Purdue University Cytometry Laboratories (USA)

- Analytical Skills :

- Measurement of cellular parameters of auto- and heterotrophic prokaryotes and eukaryotes (nucleic acids, membrane potentiels, membrane integrity, photosynthetic pigments, size and structure, cell cycle, etc.) ;
- Sorting.

Static Cytometry

- Optical, epifluorescent, confocal and multiphoton microscopy
- Image analysis
- Development of new material at the Purdue University Cytometry Laboratories (USA)



Cell Staining

Handling of fluorescent dyes (fluorochromes) and monoclonal antibodies for flow cytometry and microscopy;

Respirometry Technics

Handling of the High Resolution Oxygraph (OROBOROS)

 

Data analysis

- Data analysis of data from flow cytometry and micrsocopy
- Artificial Neural Networks (Kohonen's Self Organizing Maps)

 


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