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茉莉酸甲酯对牛膝生长及主要药用成分积累的影响(PDF)

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2015年06期
页码:
875-879
栏目:
研究论文
出版日期:
2015-11-20

文章信息/Info

Title:
Effects of methy jasmonate on growth and major medicinal components accumulation of Achyranthes bidentata
文章编号:
1000-3142(2015)06-0875-05
作者:
李金亭* 齐婉桢 郭晓双 王 灿 张元昊 王 迪 苏换换
河南师范大学 生命科学学院 河南省高校道地性中药保育及利用工程研究中心, 河南 新乡 453007
Author(s):
LI Jin-Ting* QI Wan-Zhen GUO Xiao-Shuang WANG Can ZHANG Yuan-Hao WANG Di SU Huan-Huan
College of Life Sciences, Henan Normal University Engineering Technology Research Center of Nursing and Utilization of Genuine Chinese Crude Drugs, University of Henan Province, Xinxiang 453007, China
关键词:
牛膝 茉莉酸甲酯 齐墩果酸 蜕皮甾酮
Keywords:
Achyranthes bidentata methy jasmonate(MeJA) oleanolic acid ecdysterone
分类号:
Q946, R248.1
DOI:
10.11931/guihaia.gxzw201410018
文献标识码:
A
摘要:
不同浓度的外源茉莉酸甲酯(MeJA)对牛膝生长及其主要药用成分齐墩果酸和蜕皮甾酮均有不同的影响。该文采用不同浓度的MeJA分别浸种处理牛膝种子:0(对照)、0.1 mmol·L-1(T1)、0.15 mmol·L-1(T2)、0.2 mmol·L-1(T3)、0.25 mmol·L-1(T4),对照(CK)以同体积的蒸馏水浸泡。取浸种处理后生长培养60 d的牛膝植株,测定牛膝的株高、根长、地上及地下部分的生物量; 取牛膝的叶及根, HPLC法测定其齐墩果酸和蜕皮甾酮的含量,研究MeJA对牛膝生长及主要药用成分齐墩果酸和蜕皮甾酮积累的影响。结果表明:0.15 mmol·L-1 MeJA浸种处理,对牛膝生长及生物量的促进作用最佳,其株高、根长、地上部分鲜重及根鲜重分别比对照显著升高43.9%、38.7%、26.4%、64.0%(P<0.05); 0.15 mmol·L-1 MeJA处理,对牛膝的根和叶中齐墩果酸的积累作用最佳,分别比对照组显著增加了114.3%和60%(P<0.05); 0.25 mmol·L-1 MeJA处理,对牛膝根中蜕皮甾酮的积累最佳,比对照高出90.3%(P<0.05),却不利于根和叶中齐墩果酸的积累,并可抑制叶中蜕皮甾酮的形成。说明0.15 mmol·L-1 MeJA浸种处理对牛膝的生长及其根和叶中齐墩果酸的积累作用最佳,并能显著促进根中蜕皮甾酮的积累,有利于牛膝药材产量和品质的提高。
Abstract:
To study the effects of methy jasmonate on the growth and the major medicinal components( oleanolic acid and ecdysterone )accumulation of Achyranthes bidentata, seeds of A. bidentata were soaked for 3 h by different concentrations( 0,0.1,0.15,0.2,0.25 mmol·L-1 )of methy jasmonate, and the control groups were soaked in the same volume of distilled water in this study. The determination of plant height, root length, fresh weight of aboveground and root of A. bidentata were done after 60 d. The contents of ecdysterone and oleanolic acid in roots and leaves of A. bidentata were determined by HPLC. The results showed that the 0.15 mmol·L-1 MeJA treatment sample was benefitial for plant height, root length, fresh weight of aboveground and root. Compared with control, the biomass respectively be increased( 43.9%,38.7%,26.4%,64.0%, P<0.05 )observably. The 0.15 mmol·L-1 MeJA treatment sample was also benefitial for oleanolic acid accumulation in roots and leaves of A. bidentata. It had the highest amount respectively( 114.3% and 60%, P<0.05 ). The 0.25 mmol·L-1 MeJA treatment sample was significantly promoted ecdysterone accumulation in roots, but inhibited oleanolic acid accumulation in roots and leaves and ecdysterone in leaves of A. bidentata. These results suggested that 0.15 mmol·L-1 MeJA soaking was benefitial for the growth, oleanolic acid accumulation in roots and leaves, and would significantly promote ecdysterone accumulation in roots of A. bidentata, and be helpful to improve the quality and yield of medicinal materials.

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备注/Memo

备注/Memo:
收稿日期: 2014-10-11修回日期: 2015-03-24
基金项目: 国家自然科学基金(81274076); 河南省重点攻关项目(102102110109)。
作者简介: 李金亭(1962-),女,河南新乡人,硕士生导师,研究方向为药用植物学,(E-mail)Ljt66882004@126.com。 *
更新日期/Last Update: 2015-11-20