同源四倍体玫瑰香葡萄嫩枝扦插不定根发生过程中内源激素的变化

园艺学报 ›› 2009, Vol. 36 ›› Issue (4): 565-570.

同源四倍体玫瑰香葡萄嫩枝扦插不定根发生过程中内源激素的变化

齐永顺^1,2;张志华^1*;王同坤²;杜国强¹;张京政²

(¹河北农业大学园艺学院, 河北保定071001; ²河北科技师范学院园艺园林系, 河北昌黎066600)

收稿日期:2008-11-21 修回日期:2009-03-02 出版日期:2009-04-25 发布日期:2009-04-25
通讯作者: 张志华

Changes of Endogenous Hormones in Adventitious Root Forma tion in Soft-wood Cuttings of Autotetraplo id Grape Muscat Hamburg

QI Yong-shun^1,2,ZHANG Zhi-hua^1*,WANG Tong-kun²,DU Guo-qiang¹,and ZHANG Jing-zheng²

(¹Departm ent of Horticulture, Agricultural University of Hebei, B aoding, Hebei 071001, China; ²Departm ent of Horticulture & Landscape A rchitecture, Hebei N orm al University of Science & Technology, Changli, Hebei 066600, China)

Received:2008-11-21 Revised:2009-03-02 Online:2009-04-25 Published:2009-04-25
Contact: ZHANG Zhi-hua

摘要/Abstract

摘要： 以葡萄同源四倍体玫瑰香和其二倍体玫瑰香母株的嫩枝插条为试材, 研究了扦插生根过程中
(0～18 d) 生根部位皮层的内源激素含量变化。结果表明: 玫瑰香葡萄同源加倍以后, 不仅改变了不同时期插条生根部位皮层的内源激素水平, 也改变了该部位对外施NAA的反应。在不定根诱导期( 0～3 d) ,促进生根的生长素水平下降, 抑制生根的脱落酸和赤霉素含量上升, 生长素与脱落酸和赤霉素的比值下降;应用NAA处理以后, 在根原基诱导期(0～3 d) , 赤霉素、玉米素和玉米素核苷含量不降反升, 改变了内源激素的整体变化态势。分析认为, 同源加倍后嫩枝插条生根部位内源激素的代谢变化是造成其生根能力降低的主要原因之一。

　

关键词: 葡萄, 同源四倍体, 嫩枝扦插, 内源激素, 不定根

Abstract: The changes of endogenous hormones in adventitious root formation in softwood cuttings of autotetrap loid grapeMuscat Hamburgwere studied. The results showed that endogenous hormones levels of cortex in rooting portionswere not only changed, but also the response to exogenous NAA was changed after Muscat Hamburg was doubled. It showed as follows: In adventitious root induction period (0-3 d) , the auxin levels
which can p romote rootingwere decreased, the abscisic acid and gibberellin which can inhibit rootingwere increased, then the ratio of auxin / abscisic acid and gibberellin decreased. In root p rimary period, a rising of the content of gibberellin, zeatin and zeatin riboside instead of decreasing after exogenous auxin applied. The overall change of endogenous hormones was changed. In conclusion, it was one of the main reasons for the decreased rooting ability of softwood cuttings of grapeMuscat Hamburg that homologous doubling changed the metabolism of endogenous hormones in rooting portions.

Key words: grape, autotetraploid, softwood cuttings, endogenous hormone, adventitious root

中图分类号:

S 663.1

齐永顺;张志华;王同坤;杜国强;张京政. 同源四倍体玫瑰香葡萄嫩枝扦插不定根发生过程中内源激素的变化[J]. 园艺学报, 2009, 36(4): 565-570.

QI Yong-shun;ZHANG Zhi-hua;WANG Tong-kun;DU Guo-qiang;and ZHANG Jing-zheng. Changes of Endogenous Hormones in Adventitious Root Forma tion in Soft-wood Cuttings of Autotetraplo id Grape Muscat Hamburg[J]. ACTA HORTICULTURAE SINICA, 2009, 36(4): 565-570.

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