title: Growth and development of cultured carrot cells and embryos under spaceflight conditions.
abstract: Morphogenetically competent proembryonic cells and well-developed somatic embryos of carrot at two levels of organization were exposed for 18.5 days to a hypogravity environment aboard the Soviet Biosatellite Cosmos 1129.  It was confirmed that cultured totipotent cells of carrot can give rise to embryos with well-developed roots and minimally developed shoots.  It was also shown that the space hypogravity environment could support the further growth of already-organized, later somatic embryonic stages and give rise to fully developed embryo-plantlets with roots and shoots.
authors.affiliation: Department of Biology, State University of New York, Stony Brook, USA.
authors.forename: A D
authors.initials: AD
authors.lastname: Krikorian
authors.forename: F R
authors.initials: FR
authors.lastname: Dutcher
authors.forename: C E
authors.initials: CE
authors.lastname: Quinn
authors.forename: F C
authors.initials: FC
authors.lastname: Steward
mesh_terms: D002478:Cells, Cultured; D018552:Daucus carota / Q000166:cytology* / Q000196:embryology* / Q000254:growth & development*; D012639:Seeds / Q000254:growth & development; D013026:Space Flight; D014893:Weightlessness