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Action spectrum for light-induced formation of adventitious shoots in hairy roots of horseradish |
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| Authors: | Tsutomu Saitou Yoshinobu Tachikawa Hiroshi Kamada Masakatsu Watanabe Hiroshi Harada |
| Affiliation: | (1) Gene Experiment Center, Institute of Biological Sciences, University of Tsukuba, 305 Tsukuba-shi, Ibaraki, Japan;(2) National Institute for Basic Biology, Okazaki National Research Institutes, Large Spectrograph Laboratory, Myodaiji-cho, Okazaki, 444 Aichi, Japan |
| Abstract: | An action spectrum was determined for lightinduced formation of adventitious shoots in hairy roots of horseradish (Armoracia rusticana Gaert., Mey. et Scherb.) cultured in vitro. Near ultraviolet (350–400 nm), blue (440–460 nm) and red light (600–680 nm) were most effective in inducing formation of adventitious buds. Farred light (730 nm) inhibited the promotive effect of all three wavelength regions. These results are consistent with induction by phytochrome(s) of adventitious shoots in hairy roots of horseradish. |
| Keywords: | Action spectrum Adventitious bud formation Armoracia Hairy roots Light and bud formation Phytochrome |
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