title: Effects of gravity on early embryogenesis [correction of embryogeneis] in Caenorhabditis elegans.
abstract: The embryonic development of the nematode Caenorhabditis elegans was examined under different gravitational conditions. The embryos after fertilization normally hatched under hypergravity (200 G) or 3D-clinorotation, whereas the number of eggs laid from an adult hermaphrodite decreased and their hatching rate was reduced under the hypergravity condition. The first cleavage plane in the 1-cell embryo was slid to some extent by re-orientation of liquid culture vessel, but the pattern and timing of cleavages were not affected.
authors.affiliation: Graduate School of Life Sciences, Tohoku University.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Sasagawa
authors.forename: Yuko
authors.initials: Y
authors.lastname: Saito
authors.forename: Minobu
authors.initials: M
authors.lastname: Shimizu
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Takahashi
authors.forename: Noriaki
authors.initials: N
authors.lastname: Ishioka
authors.forename: Keiji
authors.initials: K
authors.lastname: Fukui
authors.forename: Masamichi
authors.initials: M
authors.lastname: Yamashita
authors.forename: Atsushi
authors.initials: A
authors.lastname: Higashitani
mesh_terms: D000818:Animals; D019521:Body Patterning; D017173:Caenorhabditis elegans / Q000196:embryology* / Q000254:growth & development*; D002455:Cell Division; D047108:Embryonic Development; D006112:Gravitation; D018471:Hypergravity; D010063:Ovum / Q000254:growth & development; D012399:Rotation; D018474:Weightlessness Simulation