title: The position of nuclei and the role of cytoskeleton in graviresponse of siphonaceous algae Vaucheria sessilis.
abstract: Gravity has always been present during evolution. Through the process of natural selection, contemporary organisms could show evidence of having turned gravity to their advantage as an adjunct to development. In recent time great success has been achieved in description and analysis of gravitaxis mechanism of algae Chara (Sievers et. al., 1991) and Euglena (Hader et. al., l990). The aim of present investigation was the demonstration of gravity-dependent growth and development of algae without distinct gravitaxis and gravitisensor organelles, such as statoliths and amyloplasts.
authors.affiliation: St. Petersburg University, Institute of Biology, Russia.
authors.forename: O V
authors.initials: OV
authors.lastname: Gavrilova
authors.forename: E E
authors.initials: EE
authors.lastname: Rudanova
authors.forename: L N
authors.initials: LN
authors.lastname: Voloshko
authors.forename: A V
authors.initials: AV
authors.lastname: Gabova
mesh_terms: D002467:Cell Nucleus / Q000187:drug effects / Q000502:physiology / Q000648:ultrastructure*; D002498:Centrifugation; D000460:Chlorophyta / Q000166:cytology / Q000187:drug effects / Q000254:growth & development* / Q000648:ultrastructure; D003078:Colchicine / Q000494:pharmacology; D015638:Cytochalasin D / Q000494:pharmacology; D003599:Cytoskeleton / Q000187:drug effects / Q000502:physiology* / Q000648:ultrastructure; D006112:Gravitation; D018470:Gravity, Altered; D018471:Hypergravity; D019384:Nucleic Acid Synthesis Inhibitors / Q000494:pharmacology; D010590:Phalloidine / Q000494:pharmacology; D012399:Rotation; D013026:Space Flight; D014893:Weightlessness
chemical_list: D019384:Nucleic Acid Synthesis Inhibitors; D010590:Phalloidine; D015638:Cytochalasin D; D003078:Colchicine