Theobroxide inhibits stem elongation in Pharbitis nil by regulating jasmonic acid and gibberellin biosynthesis

Kong, Fanjiang; Gao, Xiquan; Nam, Kyong-Hee; Takahashi, Kosaku; Matsuura, Hideyuki; Yoshihara, Teruhiko

Theobroxide inhibits stem elongation in Pharbitis nil by regulating jasmonic acid and gibberellin biosynthesis

Kong, Fanjiang; Gao, Xiquan; Nam, Kyong-Hee et al.

Plant Science, 2005, 169(4), 721-725

Permalink : https://hdl.handle.net/2115/8515

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アクセス権	open access
URI	https://hdl.handle.net/2115/8515
タイトル	Theobroxide inhibits stem elongation in Pharbitis nil by regulating jasmonic acid and gibberellin biosynthesis
著者	Kong, Fanjiang ; Gao, Xiquan ; Nam, Kyong-Hee ; Takahashi, Kosaku ; Matsuura, Hideyuki ; Yoshihara, Teruhiko
著者名 Kong, Fanjiang
著者名 Gao, Xiquan
著者名 Nam, Kyong-Hee
e-Rad_Researcher 30374622 著者名 Takahashi, Kosaku
著者名 Matsuura, Hideyuki
著者名 Yoshihara, Teruhiko
言語	英語
キーワード	Theobroxide
	Jasmonic acid
	Gibberellin
	Stem elongation
	Lipoxygenase
	Pharbitis nil
発行日	2005-10
出版者	Elsevier
収録物名	Plant Science
巻(号)	169(4)
ページ	721-725
抄録	In this study, exogenous factors affecting the elongation growth in the short day plant, Pharbitis nil, was investigated. Theobroxide inhibited stem elongation in Pharbitis nil both under short day (SD) and long day (LD) conditions. Salicylhydroxamic acid (SHAM), an inhibitor of jasmonic acid (JA) biosynthesis, and GA3 recovered the inhibitory effect of theobroxide on stem elongation. Quantitative analysis of JA showed that the level of endogenous JA increased significantly in theobroxide treated plants, while exogenously applied GA3 and SHAM suppressed JA biosynthesis stimulated by theobroxide. The activity of lipoxygenase (LOX, the key enzyme of JA biosynthesis) also was stimulated by theobroxide and this stimulation was nullified by SHAM and GA3. Quantitative analysis of GA1 showed that theobroxide suppressed GA1 biosynthesis. In non theobroxide treated Pharbitis nil, SD conditions stimulated JA biosynthesis and LOX activity, while GA1 biosynthesis was suppressed. All these results suggest that JA probably is involved negatively in the control of stem elongation, and the balance between JA and gibberellin might determine the stem growth in Pharbitis nil.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Copyright © 2006 Elsevier B.V. All rights reserved.
PISSN	0168-9452
関連情報	URI http://www.sciencedirect.com/science/journal/01689452
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.plantsci.2005.05.023