[1]朱旭东,田松青,原海燕,等.铅胁迫下德国鸢尾生长特征和分布的研究[J].北方园艺,2014,38(09):82-86.
　ZHU Xu-dong,TIAN Song-qing,YUAN Hai-yan,et al.Study on Growth and Distribution of Iris germanica L.Under Lead Stress[J].Northern Horticulture,2014,38(09):82-86.

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铅胁迫下德国鸢尾生长特征和分布的研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第38卷期数: 2014年09期页码: 82-86 栏目: 出版日期: 2014-05-15

Title:: Study on Growth and Distribution of Iris germanica L.Under Lead Stress

文章编号:: 1001-0009（2014）09-0082-05

作者:: 朱旭东¹; 2; 田松青¹; 原海燕²; 黄苏珍²; 1.苏州农业职业技术学院,江苏苏州 215008；
2.江苏省中国科学院植物研究所（南京中山植物园），江苏南京 210014

Author(s):: ZHU Xu-dong¹; 2; TIAN Song-qing¹; YUAN Hai-yan²; HUANG Su-zhen²; 1.Suzhou Polytechnical Institute of Agriculture,Suzhou,Jiangsu 215008;
2.Institute of Botany,Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem.Sun Yat-san),Nanjing,Jiangsu 210014

关键词:: 德国鸢尾; 铅（Pb）; 生长; 分布

Keywords:: Iris germanica L.; lead(Pb); growth; distribution

分类号:: Q 945.78

文献标志码:: A

摘要:: 以德国鸢尾为试材，采用液体培养方法研究了不同浓度铅胁迫对其分株苗生长的影响和分布等规律。结果表明:随着Pb²⁺ 浓度的升高,植株的株高、新发不定芽数、存活叶片数、根长、根数、鲜重及干重均随 Pb²⁺浓度的增加呈下降的趋势。电镜超微结构显示铅主要富集在根中的细胞内外壁上，引起根和叶细胞破坏,铅影响德国鸢尾体内正常的物质代谢活动,抑制了植物生长。

Abstract:: Taking Iris germanica L.as material,the growth,lead（Pb）accumulation,tolerance and distribution of Iris germanica L.seedlings under Pb stress were investigated by nutrient solution culture method.The results showed that the ramet seedling height,new adventive bud number,live leaf number,root length,root number,fresh biomass and dry biomass of Iris germanica L.were all decreased with an increase of Pb²⁺ under single Pb²⁺ stress.Electron microscopic results showed that Pb²⁺ deposited on the inner surface of cell walls and seriously destroyed the anatomical structure of root tip and leaf.In brief,Pb²⁺ treatments affected metabolic activity of Iris germanica L.and inhibited growth of roots,rhizomes and leaves.

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备注/Memo

第一作者简介：朱旭东（1972-），男，博士研究生，副教授，现主要从事观赏植物逆境生理生态研究工作。E-mail：13862130525@163.com.

责任作者：黄苏珍（1959-），女，博士生导师，研究员，现主要从事观赏植物种质资源研究工作。E-mail：hsz1959@163.com.

基金项目：江苏省教育厅2012年‘青蓝工程’资助项目；江苏省‘农业三星工程’资助项目（SXGC[2013]088）；苏州市科技支撑计划资助项目（SNG201209）。

更新日期/Last Update: 2014-08-13