广西植物2011，Vol.31Issue(3)：332-337,6.DOI:10.3969/j.issn.1000-3142.2011.05.011
干旱胁迫下紫穗槐叶片解剖特征的变化
Changes on the anatomical characteristics of Amorpha fruticosa leaves under different drought stress gradient
摘要
Abstract
Amorpha fruiticosa is a soil conservation species. The research aimed to investigate the changes in morphological and anatomical characteristics of two-year seedling leaves of A. fruticosa under the different drought stress gradient:light stress(LS), medium stress(MS)and severe stress(SS). The results showed that the thickness of blade and the upper and lower epidermis were gradually decreased with the increase of drought stress gradient. Thickness of palisade tissue and spongy parenchyma were also decreased,while, the ratio of palisade tissue to spongy parenchyma, the relative diameter of the vascular bundle in main vein, the protruding degree of main vein and midrib thickness were increased. The stoma area was a downtrend but its density was increased. Furthermore,with the drought stress increased, the leaf size was decreased and its shape was changed. These results indicated that A. fruticosa could change the morphological and anatomical structure of its leaves to adapt the drought stress.关键词
紫穗槐/叶片/形态解剖特征/干早胁迫/生态适应性Key words
Amorpha fruticosa/ leaf/ anatomical characteristics/ drought stress/ ecological adaptation分类
农业科技引用本文复制引用
崔大练,马玉心,王俊..干旱胁迫下紫穗槐叶片解剖特征的变化[J].广西植物,2011,31(3):332-337,6.基金项目
浙江省教育厅自然科学基金(21105006208) （21105006208）
