水分胁迫对大叶铁线莲生理生化指标的影响  

Variation of Physiological and Biochemical Indexes of Clematis heracleifolia Under Water Stress

作　　者：汤伟权[1] 韩曦[1] 王佳巍[1] 赵立群[1] 周玉迁[1] 崔杰[2] 

机构地区：[1]黑龙江省森林植物园,黑龙江哈尔滨150040 [2]哈尔滨工业大学,黑龙江哈尔滨150006

出　　处：《防护林科技》2013年第8期28-31,共4页Protection Forest Science and Technology

基　　金：黑龙江省林业厅科技项目

摘　　要：为了解大叶铁线莲对水分胁迫的反应和适应性,研究了干旱和水涝胁迫下大叶铁线莲的生理指标变化。结果表明:水分饱和亏缺、质膜相对透性、丙二醛、可溶性蛋白、可溶性糖含量及抗氧化保护酶中的SOD、CAT活性,随胁迫时间的增加呈上升趋势;叶绿素含量、相对含水量、保护酶系统中的POD活性呈下降趋势,说明大叶铁线莲对水分胁迫具有较强的忍耐能力,且忍耐水涝能力高于耐干旱能力。To understand the response adaptability of Clematis heracleifolia under water stress,the variation of physiological biochemical indexes of Clematis heracleifolia were studied by experiments of simulating water stress.Result shows that the relative water deficit（RWD）,plasma membrane permeability,MDA,soluble protein,soluble sugar contents,SOD,CAT increase with the increase of water stress.The content of chlorophyll,RWC POD decrease then.It indicates that Clematis heracleifolia have stronger endurance under water stress,and its anti-waterlogging capabilities are stronger than drought-tolerant capability.

关 键 词：大叶铁线连 水分胁迫 生理生化指标 适应性评价 

分 类 号：S688.4[农业科学—观赏园艺]