Galactose prevents proton excretion but not IAA-induced growth in segments of azuki bean epicotyls |
| |
Authors: | Akira Kokubo Ryoichi Yamamoto Yoshio Masuda |
| |
Institution: | (1) Laboratory of Biology, Tezukayama College, Gakuen-minami, 631 Nara, Japan |
| |
Abstract: | We investigated the effect of galactose on IAA-induced elongation and proton excretion in azuki bean (Vigna angularis Ohwi et Ohashi) segments in order to confirm whether or not protons were involved in auxin-induced growth. Galactose inhibited the IAA-induced decrease in the solution pH but had no inhibitory effect on IAA-induced growth in segments of azuki bean epicotyls. On the other hand, galactose inhibited both IAA-induced growth and proton excretion in oat (Avena sativa L.) coleoptile segments. From these results it is unlikely that IAA-induced growth is mediated by proton excretion at least in azuki bean epicotyls.Abbreviations IAA
indole-3-acetic acid
- FC
fusicoccin |
| |
Keywords: | Acid growth Auxin Fusicoccin Galactose Proton excretion Vigna epicotyl |
本文献已被 SpringerLink 等数据库收录! |