GRAVIGEN
Research Area: Plant Biology
Expedition(s): 18
Principal Investigator(s): ● Annick Graziana, Universite Paul Sabatier Toulouse, Castanet-
Tolosan, France
● Christian Mazars, Universite de Toulouse UPS, Castanet-
Tolosan, France
● R. Rangeva, Universite Paul Sabatier Toulouse, Castanet-
Tolosan, France
● Gilbert Gasset, Université Paul Sabatier, Toulouse, France
● Didier Chaput, MEng, Centre National d'Estudes Spatiales,
Paris, France
RESEARCH OBJECTIVES
The Gravigen experiment examines how gene expression in germinating Brassica napus
seedlings is modified by microgravity in order to elucidate the mechanisms of gravity
perception and transduction in plant roots. Seedlings are grown either in microgravity or 1-g
conditions, and the expression of some genes between the two samples is compared.
RESULTS
No exploitable results were obtained due to lack of germination in all but one of the culture
chambers.
This investigation is complete and all results are published.