An aluminum influence on root circumnutation in dark revealed by a new super-HARP (high-gain avalanche rushing amorphous photoconductor) camera.
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.
Hayashi
Yoshitake
Y
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
Nishiyama
Hiroki
H
Tanoi
Keitaro
K
Ohya
Tomoyuki
T
Nihei
Naoto
N
Tanioka
Kenkichi
K
Nakanishi
Tomoko M
TM
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
D017607:Aluminum Compounds; D002712:Chlorides; D000077410:Aluminum Chloride; D000535:Aluminum