新疆农业科学 ›› 2021, Vol. 58 ›› Issue (4): 625-633.DOI: 10.6048/j.issn.1001-4330.2021.04.005

• 作物遗传育种·种质资源·分子遗传学·耕作栽培 • 上一篇    下一篇

不同浓度GSNO对盐胁迫下番茄幼苗生长的影响

孙艳芸, 朱普生, 刁明, 崔金霞, 徐巍, 刘慧英   

  1. 石河子大学农学院园艺系/特色果蔬栽培生理与种质资源利用兵团重点实验室,新疆石河子 832000
  • 收稿日期:2020-04-13 出版日期:2021-04-20 发布日期:2021-04-25
  • 通信作者: 刘慧英(1970-),女,新疆人,教授,研究方向为蔬菜抗逆生理、设施园艺,(E-mail) hyliuok@aliyun.com
  • 作者简介:孙艳芸(1994-),女,新疆人,硕士研究生,研究方向为设施园艺,(E-mail)1498147172@qq.com
  • 基金资助:
    国家自然科学基金(31860550);兵团专利运用与产业化计划项目(2016CD003-05)

Effects of Different Concentrations of S-nitrosoglutathione (GSNO) on the Growth of Tomato Seedlings under Salt Stress

SUN Yanyun, ZHU Pusheng, DIAO Ming, CUI Jinxia, XU Wei, LIU Huiying   

  1. Department of Horticulture, College of Agronomy, Shihezi University/Key Laboratory of Cultivation Physiology and Germplasm Resources Utilization of Characteristics Fruits and Vegetables of Xinjiang Production and Construction Corps,Shihezi University,Shihezi Xinjiang 832003,China
  • Received:2020-04-13 Online:2021-04-20 Published:2021-04-25
  • Correspondence author: LIU Huiying (1970 -), female, native place:Xinjiang, Professor, research field: for Vege Table Stress Physiology, facility horticulture research, (E-mail)hyliuok@aliyun.com
  • Supported by:
    National Natural Science Foundation of China(31860550)and Patent Application and Industrialization Project of XPCC (2016 CD003-05)

摘要: 【目的】 研究不同浓度S-亚硝基谷胱甘肽(GSNO)对盐胁迫下番茄幼苗生长的影响,筛选出提高番茄耐盐性的适宜施用浓度。【方法】 选用番茄品种中蔬4号。采用营养液栽培法。NaCl(100 mmol/L)胁迫下,番茄幼苗叶面分别喷施不同浓度的GSNO(0、0.1、0.2、0.3、0.4、0.5、0.6 mmol/L)。测定分析不同浓度外源GSNO对盐胁迫下番茄幼苗生长及根系活力、叶绿素及丙二醛(MDA)含量、电解质渗透率和脯氨酸(Pro)含量的影响。【结果】 (1)NaCl胁迫显著降低了番茄幼苗的株高、茎粗、地上部和地下部干重、鲜重、根系活力、叶绿素a、叶绿素b和叶绿素总量;显著提高了番茄幼苗的丙二醛含量和脯氨酸含量;对电解质渗透率无显著影响;(2)外源施用0.1~0.3 mmol/L GSNO可通过不同程度地提高叶绿素含量、根系活力和脯氨酸含量,降低膜脂过氧化和膜完整性的破坏程度而有效缓解盐胁迫对番茄幼苗生长的抑制作用和提高盐适应性,而实验施用的高浓度(0.5~0.6 mmol/L)GSNO的施用虽对盐胁迫下番茄幼苗的已造成伤害,但尚未达到抑制盐胁迫下番茄幼苗生长的作用。【结论】 NaCl胁迫显著影响了番茄幼苗的正常生长,外源施加适宜浓度的GSNO能有效缓解盐胁迫对番茄幼苗的影响。以0.1 mmol/L GSNO施用效果最佳。

关键词: 番茄幼苗; 盐胁迫; S-亚硝基谷胱甘肽

Abstract: 【Objective】 To investigate the effects of different concentrations of S-nitrosoglutathione (GSNO) on the growth of tomato seedlings under salt stress in the hope of screening out the appropriate concentration to improve the salt tolerance of tomato. 【Methods】 The tomato variety Zhongshu 4 was used as the experimental material and nutrient solution cultivation method was used. Under the stress of NaCl (100 mmol/L), the leaves of tomato seedlings were sprayed with different concentrations of GSNO (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 mmol/L). The effects of exogenous GSNO on the growth, root activity, chlorophyll content, malondialdehyde (MDA) content, electrolyte permeability and proline content of tomato seedlings under salt stress were determined. 【Results】 (1) NaCl stress significantly reduced plant height, stem diameter, dry weight, fresh weight, root activity, chlorophyll a, chlorophyll b and total chlorophyll content of tomato seedlings; significantly increased MDA content and proline content of tomato seedlings; had no significant effect on electrolyte permeability; (2) exogenous application of 0.1-0.3 mmol/L GSNO can effectively alleviate the inhibition of salt stress on Tomato Seedling Growth and improve salt adaptability by increasing chlorophyll content, root activity and proline content, reducing membrane lipid peroxidation and membrane integrity damage Although the application of GSNO did harm to the growth of Tomato Seedlings under salt stress, it did not inhibit the growth of Tomato Seedlings under salt stress. 【Conclusion】 NaCl stress significantly affected the normal growth of tomato seedlings, and exogenous GSNO with appropriate concentration could effectively alleviate the effect of salt stress on tomato seedlings. In this experiment, 0.1 mmol/L GSNO was the best.

Key words: tomato seedling; salt stress; S-nitrosoglutathione

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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