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首页> 外文期刊>Acta Horticulturae >Foliar paclobutrazol application promotes photosynthetic abilities and growth performances and calcium ion levels, in salt-stressed water spinach (Ipomoea aquatica)
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Foliar paclobutrazol application promotes photosynthetic abilities and growth performances and calcium ion levels, in salt-stressed water spinach (Ipomoea aquatica)

机译：Feariar Paclobutrazol应用促进了盐压力水菠菜（Ipomoea Aquatica）中的光合作用和生长性能和钙离子水平

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摘要

We investigated the effect of foliar PBZ pretreatment (0, 17 and 51 uM) on biochemical, physiological and morphological changes in water spinach [Ipomoea aquatica Forsk.j subjected to 0 or 100 mM NaCl. Node cuttings with 7-8 leaves of water spinach, Chia Tai or CT commercial cultivar (green stem) and Wild Type or WT cultivar (red stem) were used. After 14 days of salt treatment, Na+ in the leaf tissues of CT and WT cultivars was enriched when subjected to 100 mM NaCl. In contrast, Na+ in the salt-stressed plants was unaffected when sprayed with 51 mM PBZ before exposure to salt stress. In addition, Ca2+ in each organ of salt-treated plants (both CT and WT cultivars) was evidently enriched, especially in the leaf tissues of 51 uM PBZ foliar spray under salt stress condition. Net photosynthetic rate (P) in the second fully expanded leaf from the tip in cultivar 'CT' was maintained when exposed to 100 mM NaCl, leading to stabilizing effect on shoot height, number of leaves, shoot fresh weight and rootfresh weight. In addition, P and growth abilities in 51 u.M PBZ-pretreated plants of cultivar 'WT' under salt stress were maintained. The study concludes that 'CT' water spinach can tolerate salt stress better than 'WT' and the foliar application of 51uM PBZ improved the salt tolerant ability in 'WT', as indicated by Pn stabilization and growth regulation.
机译：我们调查了叶面PBZ预处理（0,17和51μm）对水菠菜的生化，生理和形态变化的影响[Ipomoea Aquatica Forsk.j进行0或100 mm NaCl。使用具有7-8叶水菠菜，Chia Tail或CT商业品种（绿色茎）和野生型或WT品种（红茎）的节点切割。在盐处理14天后，当受到100mM NaCl时，富含CT和WT品种的叶组织中的Na +。相反，在暴露于盐胁迫之前用51mM PBZ喷雾时，盐胁迫植物中的Na +不会受到影响。此外，显然富集了盐处理植物（CT和WT品种）的每个器官中的CA2 +，特别是在盐胁迫条件下的51um PBZ叶面喷雾的叶组织中。当暴露于100mM NaCl时，将第二个完全扩张叶片中的净光合速率（p）从桃片中的尖端进行维持，导致对枝条高度，叶子数，射击鲜重和rootfresh重量稳定效果。此外，维持51次盐胁迫下的51个U.MPBZ-Premreated植物的P和生长能力。该研究的结论是，“CT'水菠菜可以耐受比”重量“更好的盐胁迫，并且51UM PBZ的叶面施用改善了”WT“中的耐盐能力，如PN稳定和生长调节所示。

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  • 来源
    《Acta Horticulturae》 |2018年第1206期|共8页
  • 作者

    M. Kitayama; R. Tisarum; C. Theerawitaya; T. Samphumphung; M. Takagaki; C. Kirdmanee; S. Cha-um;

  • 作者单位

    Faculty of Horticulture Chiba University Matsudo Japan;

    National Center for Genetic Engineering and Biotechnology National Science and Technology Development Agency Pathum Thani Thailand;

    National Center for Genetic Engineering and Biotechnology National Science and Technology Development Agency Pathum Thani Thailand;

    National Center for Genetic Engineering and Biotechnology National Science and Technology Development Agency Pathum Thani Thailand;

    Faculty of Horticulture Chiba University Matsudo Japan;

    National Center for Genetic Engineering and Biotechnology National Science and Technology Development Agency Pathum Thani Thailand;

    National Center for Genetic Engineering and Biotechnology National Science and Technology Development Agency Pathum Thani Thailand;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 园艺;
  • 关键词

    commercial cultivar; growth characters; net photosynthetic rate; sodium ion; wild type cultivar;

    机译：商业品种;生长特征;净光合速率;钠离子;野生型品种;

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