title: Molecular genetic analysis of phototropism in Arabidopsis.
abstract: Plant life is strongly dependent on the environment, and plants regulate their growth and development in response to many different environmental stimuli. One of the regulatory mechanisms involved in these responses is phototropism, which allows plants to change their growth direction in response to the location of the light source. Since the study of phototropism by Darwin, many physiological studies of this phenomenon have been published. Recently, molecular genetic analyses of Arabidopsis have begun to shed light on the molecular mechanisms underlying this response system, including phototropin blue light photoreceptors, phototropin signaling components, auxin transporters, auxin action mechanisms and others. This review highlights some of the recent progress that has been made in further elucidating the phototropic response, with particular emphasis on mutant phenotypes.
authors.affiliation: Graduate School of Science and Technology, Niigata University, Nishi-ku, Niigata, 950-2181 Japan. tsakai@gs.niigata-u.ac.jp
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Sakai
authors.forename: Ken
authors.initials: K
authors.lastname: Haga
mesh_terms: D017360:Arabidopsis / Q000235:genetics* / Q000502:physiology*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism; D007210:Indoleacetic Acids / Q000378:metabolism; D055519:Photoreceptors, Plant / Q000378:metabolism; D018524:Phototropism / Q000235:genetics*; D015398:Signal Transduction / Q000235:genetics
chemical_list: D029681:Arabidopsis Proteins; D007210:Indoleacetic Acids; D055519:Photoreceptors, Plant