title: An aluminum influence on root circumnutation in dark revealed by a new super-HARP (high-gain avalanche rushing amorphous photoconductor) camera.
abstract: The circumnutation of a rice root under dark conditions was observed using a highly sensitive camera, a new super-HARP camera. A rice root showed regular rhythmic movement with fixed angle. When treated with Al (5 microM AlCl3), the rotation angle of the root tip was drastically decreased and then the movement was resumed again, whereas the root elongation rate was constant. With the increase of Al concentration, the cycle-fading period became shorter. This is the first report to show that an Al treatment ceased the rotation movement of the root but not elongation.
authors.affiliation: Graduate School of Agricultural and Life Sciences, the University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan. aa26066@mail.ecc.u-tokyo.ac.jp
authors.forename: Yoshitake
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Hiroki
authors.initials: H
authors.lastname: Nishiyama
authors.forename: Keitaro
authors.initials: K
authors.lastname: Tanoi
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Ohya
authors.forename: Naoto
authors.initials: N
authors.lastname: Nihei
authors.forename: Kenkichi
authors.initials: K
authors.lastname: Tanioka
authors.forename: Tomoko M
authors.initials: TM
authors.lastname: Nakanishi
mesh_terms: D000535:Aluminum / Q000494:pharmacology*; D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000494:pharmacology; D002712:Chlorides / Q000494:pharmacology; D003624:Darkness; D012275:Oryza / Q000187:drug effects* / Q000254:growth & development; D010781:Photography / Q000379:methods*; D018517:Plant Roots / Q000187:drug effects* / Q000254:growth & development; D012680:Sensitivity and Specificity
chemical_list: D017607:Aluminum Compounds; D002712:Chlorides; D000077410:Aluminum Chloride; D000535:Aluminum