芘对萝卜幼苗生长和一些生理特性的影响
陈世军,冯秀珍,祝贤凌,黄烈琴,梅运群
黔南民族师范学院生命科学系，贵州都匀 558000
Effects of Pyrene on Growth and Several Physiological Characteristics of Raphanus sativus Seedlings
CHEN Shi-jun, FENG Xiu-zhen, ZHU Xian-ling, HUANG Lie-qin, MEI Yun-qun
Department of Life Sciences, Qiannan National Normal College, Duyun 558000, Guizhou, China
摘要 采用土培方法探讨芘对萝卜幼苗生长和一些生理特性的影响。结果表明：芘对萝卜种子出苗率无影响，对幼苗株高、根长和叶面积有显著抑制作用；芘处理的萝卜幼苗叶片内叶绿素a、叶绿素b含量显著下降，丙二醛（MDA）含量、电解质渗透率显著提高，除超氧化物歧化酶（SOD）活性一直降低外，过氧化物酶（POD）、过氧化氢酶（CAT）活性均呈现先升高后下降的趋势。
关键词 ：
芘 ,
萝卜 ,
生长 ,
生理特性
Abstract ：Effects of different concentrations of pyrene in soil on growth and several physiological characteristics of Raphanus sativus seedlings were studied. The results showed that pyrene had little effects on emergence rate, but significantly suppressed the plant height, root length and leaf area. Pyrene stress could bring about the reduction in contents of chlorophyll a, and chlorophyll b significantly. While the MDA contents and leakage rate of electrolyte in seedling were increased significantly. Except the SOD activity were decreased, the POD and CAT activities were firstly increased and then decreased by pyrene.
Key words ：
Pyrene
Raphanus sativus Growth
Physiological characteristics
收稿日期: 2010-03-12
引用本文:
陈世军;冯秀珍;祝贤凌;黄烈琴;梅运群. 芘对萝卜幼苗生长和一些生理特性的影响[J]. 中国蔬菜, 2010, 1(16): 54-57.
CHEN Shi-jun;FENG Xiu-zhen;ZHU Xian-ling;HUANG Lie-qin;MEI Yun-qun. Effects of Pyrene on Growth and Several Physiological Characteristics of Raphanus sativus Seedlings. , 2010, 1(16): 54-57.
链接本文:
http://www.cnveg.org/CN/ 或 http://www.cnveg.org/CN/Y2010/V1/I16/54
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