盐胁迫对鹅耳枥生长及生理生化特性的影响

doi:10.3969/j.issn.1000-2006.2015.06.011

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南京林业大学学报（自然科学版） ›› 2015, Vol. 39 ›› Issue (06): 56-60.doi: 10.3969/j.issn.1000-2006.2015.06.011

盐胁迫对鹅耳枥生长及生理生化特性的影响

周琦¹,祝遵凌^1,2,3*,施曼¹

1.南京林业大学风景园林学院,江苏南京 210037;
2.南京林业大学南方现代林业协同创新中心, 江苏南京 210037;
3.南京林业大学艺术设计学院,江苏南京 210037

出版日期:2015-11-30 发布日期:2015-11-30
基金资助:
收稿日期:2014-09-05 修回日期:2015-08-25
基金项目:江苏省工程技术研究中心建设项目(BM2013478); 江苏省科技支撑计划(BY2015006-01); 江苏省“六大人才高峰”项目(NY-029); 江苏省“青蓝工程”资助项目(2012)
第一作者:周琦,博士生。E-mial:806611458@qq.com。*通信作者:祝遵凌,教授,博士。E-mial:zhuzunling@aliyun.com
引文格式:周琦,祝遵凌,施曼. 盐胁迫对鹅耳枥生长及生理生化特性的影响[J]. 南京林业大学学报:自然科学版,2015,39(6):56-60.

Effects of salt stress on growth,physiological and biochemical characteristics of Carpinus turczaninowii seedlings

ZHOU Qi¹, ZHU Zunling^1,2,3*, SHI Man¹

1. College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China;
2. Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing 210037, China;
3. College of Arts &
Design, Nanjing Forestry University, Nanjing 210037, China

Online:2015-11-30 Published:2015-11-30

摘要/Abstract

摘要： 为加快鹅耳枥在园林绿化中的应用,探究了鹅耳枥对盐胁迫的响应及其耐盐性,以2年生鹅耳枥幼苗为材料,研究6个盐分梯度(0、1、2、3、4、5 g/L)NaCl胁迫对鹅耳枥幼苗生长及生理生化特性的影响。结果表明:①盐胁迫抑制了鹅耳枥的生长,随着盐质量浓度的增大,苗高生长量、地径生长量、总干质量和相对含水量均逐渐下降; ②保护酶活性、可溶性糖含量和可溶性蛋白含量随着盐胁迫程度的增加先升高后降低; ③随着盐质量浓度的增大,叶片MDA含量、相对电导率和脯氨酸含量总体呈上升趋势,且在5 g/L盐质量浓度处理下均达到最大值。研究表明,鹅耳枥幼苗在低、中等盐含量(1～3 g/L)的环境中能够正常生长,而4～5 g/L盐胁迫时对其生长会造成损害。因此,鹅耳枥具有一定的耐盐能力,可在园林绿化中推广使用。

Abstract: To explore the responses of Carpinus turczaniowii to salt stress and its salt tolerance, we studied the growth, physiological and biochemical changes of two year old C. turczaninowii seedlings stressed with six gradients of NaCl concentration(0,1,2,3,4,5 g/L). The results showed: ① The growth of C. turczaninowii was inhibited by salt stress, because the height growth,diameter growth,dry weight and relative water content of seedlings decreased with the increase of NaCl concentration. ②The protective enzymes(SOD and POD)activity, soluble sugar content and soluble protein content was increased first and then decreased; ③With the increase of salt stress, MDA content, relative conductivity and proline content increased, and reached a maximum under 5 g/L NaCl. We concluded that C. turczaninowii seedings can grow under low and moderate NaCl concentration(1-3 g/L), but its growth was inhibited under 4-5 g/L NaCl. It indicated that C. turczaninowii seedlings has certain ability of salt tolerance,and they can be used widely in the landscape.

中图分类号:

Q945.79
S718

周琦,祝遵凌,施曼. 盐胁迫对鹅耳枥生长及生理生化特性的影响[J]. 南京林业大学学报（自然科学版）, 2015, 39(06): 56-60.

ZHOU Qi, ZHU Zunling, SHI Man. Effects of salt stress on growth,physiological and biochemical characteristics of Carpinus turczaninowii seedlings[J].Journal of Nanjing Forestry University (Natural Science Edition), 2015, 39(06): 56-60.DOI: 10.3969/j.issn.1000-2006.2015.06.011.

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盐胁迫对鹅耳枥生长及生理生化特性的影响

Effects of salt stress on growth,physiological and biochemical characteristics of Carpinus turczaninowii seedlings

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