In vitro shoot growth and adventitious rooting of Wikstroemia gemmata depends on light quality

IF 0.9 4区 生物学 Q4 PLANT SCIENCES Israel Journal of Plant Sciences Pub Date : 2020-02-25 DOI:10.1163/22238980-20191110
I. Verstraeten, H. Buyle, S. Werbrouck, M. V. Labeke, D. Geelen
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引用次数: 1

Abstract

In vitro propagation of the ornamentally interesting species Wikstroemia gemmata is limited by the recalcitrance to form adventitious roots. In this article, two strategies to improve the rooting capacity of in vitro microcuttings are presented. Firstly, the effect of exogenous auxin was evaluated in both light and dark cultivated stem segments and also the sucrose-content of the medium was varied in order to determine better rooting conditions. Secondly, different spectral lights were evaluated and the effect on shoot growth and root induction demonstrated that the exact spectral composition of light is important for successful in vitro growth and development of Wikstroemia gemmata. We show that exogenous auxin cannot compensate for the poor rooting under unfavorable light conditions. Adapting the culture conditions is therefore paramount for successful industrial propagation of Wikstroemia gemmata.
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紫荆离体苗的生长和不定根依赖于光质
观赏植物Wikstroemia gemmata的离体繁殖受到形成不定根的阻力的限制。本文介绍了提高离体微插枝生根能力的两种策略。首先,研究了外源生长素在明暗栽培茎段中的作用,并对培养基中的蔗糖含量进行了变化,以确定较好的生根条件。其次,研究了不同光谱光对紫荆植株生长和根系诱导的影响,表明光谱光的准确组成对紫荆植株的体外生长发育至关重要。结果表明,外源生长素不能补偿在不利光照条件下的不良生根。因此,适应培养条件对于成功的工业繁殖至关重要。
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来源期刊
Israel Journal of Plant Sciences
Israel Journal of Plant Sciences 生物-植物科学
CiteScore
1.90
自引率
0.00%
发文量
17
审稿时长
>12 weeks
期刊介绍: The Israel Journal of Plant Sciences is an international journal of extensive scope that publishes special issues dealing with all aspects of plant sciences, including but not limited to: physiology, cell biology, development, botany, genetic
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