河南农业科学 ›› 2024, Vol. 53 ›› Issue (3): 118-124.DOI: 10.15933/j.cnki.1004-3268.2024.03.012

• 园艺 • 上一篇    下一篇

芍药根茎形成发育过程中内源激素和碳水化合物的变化

王慧娟1,王二强2,符真珠1,李艳敏1,王晓晖2,袁欣1,高杰1,王利民1,张和臣1   

  1. (1.河南省农业科学院园艺研究所,河南 郑州 450002;2. 洛阳市农林科学院,河南 洛阳 71023)
  • 收稿日期:2023-09-10 出版日期:2024-03-15 发布日期:2024-04-19
  • 通讯作者: 张和臣(1979-),男,河南濮阳人,副研究员,博士,主要从事花瓣呈色机理及园林植物遗传育种研究。E-mail:zhc5128@126.com
  • 作者简介:王慧娟(1976-),女,河南濮阳人,副研究员,硕士,主要从事园林植物遗传育种研究。E-mail:wanghuijuan-7618@163.com
  • 基金资助:
    河南省农业科学院基础性科研项目(2023JC04)

Changes of Endogenous Hormones and Carbohydrates during Rhizome Formation and Development of Herbaceous Peony

WANG Huijuan1,WANG Erqiang2,FU Zhenzhu1,LI Yanmin1,WANG Xiaohui2,YUAN Xin1,GAO Jie1,WANG Limin1,ZHANG Hechen1   

  1. (1.Horticulture Research Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;2.Luoyang Academy of Agriculture and Forestry Sciences,Luoyang 471023,China)
  • Received:2023-09-10 Published:2024-03-15 Online:2024-04-19

摘要: 为了明确芍药根茎形成发育过程中内源激素和碳水化合物的变化趋势,以芍药实生苗为试验材料,观测根茎初始形成和膨大发育期的形态变化,并对其内源激素及碳水化合物含量的变化进行研究。结果表明,根茎的形成和发育可划分为4个时期,分别为营养生长期(Ⅰ)、根茎转换期(Ⅱ)、膨大期(Ⅲ)、膨大后期(Ⅳ)。根茎形成发育前期差异激素较多,其中,根茎转换期(Ⅱ)ABA和GA3含量急剧升高,达到峰值,分别为94.96、541.53 ng/g,随后显著下降,表明二者共同调节了根茎的初始形成。生长素类和细胞分裂素类在根茎转换期(Ⅱ)和膨大期(Ⅲ)表达量较高,对根茎的发育和膨大起主导作用。葡萄糖和果糖等还原糖含量在根茎转换期(Ⅱ)显著下降后保持在较低水平,蔗糖和淀粉含量则随根茎的形成和发育呈逐渐上升趋势,是根茎储存和积累的主要碳水化合物。

关键词: 芍药, 根茎, 内源激素, 碳水化合物

Abstract: The rhizome of herbaceous peony is the precondition and foundation for plants to regenerate naturally and ramet propagation. It’s important to clarify the changes of endogenous hormones and carbohydrates during the formation and development of rhizome of herbaceous peony.The seedlings of herbaceous peony were taken as the materials to observe the morphological changes as well as the changes of endogenous hormones and carbohydrates. The results showed that the formation and development of rhizomes could be divided into four stages:vegetative growth stage(Ⅰ),rhizome transition stage(Ⅱ),expansion stage(Ⅲ)and late expansion stage(Ⅳ).There were many differences in endogenous hormones during the early stages of rhizomes formation and development.The content of ABA and GA3 increased sharply during the rhizome transition stage(Ⅱ),reached the peak(94.96 ng/g and 541.53 ng/g)and then decreased significantly.ABA and GA3 jointly regulated the initial formation of rhizomes. Auxins and cytokinins were highly expressed during the rhizome transition stage(Ⅱ)and expansion stage(Ⅲ),which played a dominant role in the development and expansion of rhizomes.The content of glucose and fructose decreased significantly during the rhizome transition stage(Ⅱ)and maintained a lower level in the late stages. However,the content of sucrose and starch assumed a trend of increasing with the formation and development of rhizomes,which were the main carbohydrates stored and accumulated in rhizomes

Key words: Herbaceous peony, Rhizome, Endogenous hormone, Carbohydrate

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