盐胁迫下盐桦生理响应的变化分析

doi:10.3724 SP.J.1143.2009.08221

Plant Diversity ›› 2009, Vol. 31 ›› Issue (03): 260-264.DOI: 10.3724 SP.J.1143.2009.08221

盐胁迫下盐桦生理响应的变化分析

张海波, 曾幼玲, 兰海燕, 张富春

新疆大学生命科学与技术学院新疆生物资源基因工程重点实验室, 新疆乌鲁木齐 830046

收稿日期:2008-12-10 出版日期:2009-06-25 发布日期:2009-06-25

Physiological Responses of Betula halophila (Betulaceae) to Salt Stress

ZHANG Hai-Bo, ZENG You-Ling, LAN Hai-Yan , ZHANG Fu-Chun

Xinjiang Key Laboratory of Biological Resources and Genetic Engineering , College of Life Science and Technology , Xinjiang University , Urumqi 830046 , China

Received:2008-12-10 Online:2009-06-25 Published:2009-06-25

摘要/Abstract

摘要： 对组织培养获得的盐桦( Belula halophila ) 苗在盐胁迫下的生理指标和解剖结构进行了分析, 结果显示, 随着盐浓度的增加, 植物叶片相对含水量逐渐降低; 脯氨酸( Pro) 含量逐渐增加; 叶片丙二醛(MDA) 含量和过氧化氢酶(CAT) 活性大小存在相关性, 在50～200 mmol/L 盐胁迫下, 植物的CAT 活性是递增的, 200 mmol/L NaCl 处理时达到最高, 同时叶片MDA 含量在50～200 mmol/L 盐处理时变化不明显;CAT 活性在300mmol/L NaCl 处理时突然降低, 此时叶片MDA 含量大; 植物叶片和根的离子含量测定表明,在盐胁迫下K+􊄯Na+ 比值逐渐降低, 叶片中K⁺ 含量始终高于Na ⁺ 含量; 石蜡切片和扫描电镜发现盐桦茎、叶中有晶体状物质存在, 通过X-ray 分析表明这种晶体含有C, O, Ca 元素, 相关的细胞成分化学实验进一步确定其结晶体的成分。

关键词: 盐桦, 脯氨酸, 丙二醛, 过氧化氢酶

Abstract: The physiological responses and the relevant anatomical structure of Betula halophila under salt stress were assayed. Results showed that the relative water and proline contents of the leaf were gradually declined, while the MDA content was correlated with the CAT activity in the leaf under salt stress. The CAT activity was ascended responding to the stability of MDA content at 50 - 200 mmol/L NaCl , but it was decreased at 300mmol/L NaCl , which caused the elevation of the MDA. The K⁺􊄯Na ⁺ ratios in the leaf and root were declined under salt stress, while the K⁺ content was always higher than Na ⁺ content in leaf. Crystals of Betula halophila containing the C, O and Ca element were discovered in the stem and leaf, but not in root, and will be further confirmed by chemical experiment related to cell components .

Key words: Betula halophila

中图分类号:

Q 945

张海波, 曾幼玲, 兰海燕, 张富春 . 盐胁迫下盐桦生理响应的变化分析[J]. Plant Diversity, 2009, 31(03): 260-264.

ZHANG Hai-Bo, ZENG You-Ling, LAN Hai-Yan , ZHANG Fu-Chun. Physiological Responses of Betula halophila (Betulaceae) to Salt Stress[J]. Plant Diversity, 2009, 31(03): 260-264.

[1]	杨慧1、2 , 高波3, 李唯奇1. 金属离子胁迫产生植物膜脂过氧化的能力与离子的极化能力正相关[J]. Plant Diversity, 2011, 33(3): 293-298.
[2]	王凤英1, 胡永红1、2, 田旗1. 低温胁迫对海岛植物普陀樟抗寒性生理指标的影响[J]. Plant Diversity, 2010, 32(S17): 97-.
[3]	田学军1 , 龙云惠2 , 张德刚1 , 何英2 . 高温对萝芙木细胞膜、膜脂和抗坏血酸代谢造成的损伤[J]. Plant Diversity, 2008, 30(01): 95-98.
[4]	田美华1 , 2 , 唐安军2 , 3 , 宋松泉4 . 温度和渗透胁迫对细叶鸦葱种子萌发的影响[J]. Plant Diversity, 2007, 29(06): 682-686.
[5]	柳维波，曹槐，刘世熙，刘次全. 七种不同抗冷性植物甘油-３-磷酸转酰酶mRNA二级结构研究[J]. Plant Diversity, 2002, 24(04): 1-3.
[6]	熊江，周俊，戴好富，谭宁华，丁中涛. 多蕊商陆的化学成分[J]. Plant Diversity, 2002, 24(03): 1-3.
[7]	陈善娜梁斌张蜀君周恒苍. 云南高原水稻幼苗的抗冷性与其活性氧清除系统的关系[J]. Plant Diversity, 1995, 17(04): 1-3.

盐胁迫下盐桦生理响应的变化分析

Physiological Responses of Betula halophila (Betulaceae) to Salt Stress

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 7

编辑推荐

Metrics

本文评价