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中国农学通报

中国农学通报 ›› 2021, Vol. 37 ›› Issue (7): 7-13.doi: 10.11924/j.issn.1000-6850.casb2020-0092

所属专题： 小麦

• 农学·农业基础科学 • 上一篇    下一篇

木醋液对小麦幼苗生长、抗氧化特性及内源激素含量的影响

卢辛成1,2(), 蒋剑春1(), 何静2, 孙康1, 孙云娟1   

  1. 1中国林业科学研究院林产化学工业研究所/生物质化学利用国家工程实验室/国家林业和草原局林产化学工程重点开放性实验室/江苏省生物质能源与材料重点实验室/江苏省林业资源高效加工利用协同创新中心,南京 210042
    2北京林业大学材料科学与技术学院,北京 100083
  • 收稿日期:2020-05-13 修回日期:2020-11-24 出版日期:2021-03-05 发布日期:2021-03-17
  • 通讯作者: 蒋剑春
  • 作者简介:卢辛成,男,1985年出生,内蒙古包头人,副研究员,硕士,主要从事生物质热化学转化研究。Tel：025-85482484,E-mail： xinze1983@163.com。
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金“木醋液对植物根系生长促进效应与机理研究”(CAFYBB2018SY029);江苏自然科学基金“林业纤维烘焙脱氧机制及其热解产物形成机理研究”(BK20191135)

Effects of Wood Vinegar on Seedling Growth, Antioxidant Activity and Endogenous Hormone Content of Wheat

Lu Xincheng1,2(), Jiang Jianchun1(), He Jing2, Sun Kang1, Sun Yunjuan1   

  1. 1Institute of Chemical Industry of Forest Products, CAF/ National Engineering Lab for Biomass Chemical Utilization/ Key and Open Lab of Forest Chemical Engineering, SFA/ Key Lab of Biomass Energy and Material, Jiangsu Province/ Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042
    2College of Materials Science and Technology, Beijing Forestry University, Beijing 100083
  • Received:2020-05-13 Revised:2020-11-24 Online:2021-03-05 Published:2021-03-17
  • Contact: Jiang Jianchun

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摘要：

研究木醋液对小麦幼苗生长、抗氧化特性以及内源激素含量的影响,探讨木醋液对小麦幼苗生长的调节机制,为木醋液用作植物生长调节剂提供参考。选用不同浓度的杉木木醋液进行小麦幼苗培养实验,以水为对照组(CK),分析不同浓度木醋液对小麦幼苗形态学指标、抗氧化特性以及内源激素含量的影响。研究表明,木醋液浓度通过逆境胁迫效应,改变小麦幼苗抗氧化酶活性和内源激素含量,进而影响其生长。低浓度木醋液培养小麦引起轻微逆境胁迫,小麦幼苗中MDA含量降低而POD和SOD活性增加,同时内源激素IAA和GA3含量增加、ABA含量降低,促进小麦幼苗生长;高浓度木醋液培养小麦引起严重逆境胁迫,MDA含量增加而POD和SOD活性降低,内源激素IAA和GA3含量降低而ABA含量升高,抑制小麦幼苗生长。木醋液对小麦幼苗的生长表现为低浓度促进生长,高浓度抑制生长,浓度为0.25 mL/L时对小麦幼苗生长最有利。

关键词: 木醋液, 小麦, 幼苗生长, 抗氧化酶, 内源激素

Abstract:

This study investigated the effect of wood vinegar (WV) on seedling growth, antioxidant activity and endogenous hormone content of wheat, and discussed the influence mechanism for the application of WV as growth regulator. The effects of different concentrations of WV on morphological indexes, antioxidant characteristics and endogenous hormone content of wheat seedlings were analyzed by using water as the control group (CK). The results showed that the growth of wheat seedlings was affected by the concentration of WV via the changing of the activity of antioxidant enzymes and the content of endogenous hormones caused by the stress effect of adversity. Low concentration of WV was the slight stress condition to wheat seedling growth, which reduced the MDA content, increased the activities of POD and SOD, and increased the contents of IAA and GA3 and decreased the content of ABA, thus promoted the growth of wheat seedlings. On the contrary, high concentration of WV caused the severe stress on the growth of wheat seedling, which increased the MDA content, decreased the activities of POD and SOD, and reduced the contents of IAA and GA3 and increased the ABA content, resulting in the inhibition of wheat seedling growth. The regulation mechanism of WV on wheat seedling growth could be described as low concentration of WV could promote the wheat seedlings growth and high concentration could inhibit the growth, and the optimal concentration of WV on the growth of wheat seedling is 0.25 mL/L.

Key words: wood vinegar, wheat, seedling growth, antioxidant enzyme, endogenous hormone

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