期刊论文

中文

农业环境科学学报

1672-2043

2001

20

5

341-344

10.3321/j.issn:1672-2043.2001.05.015

本校为第一机构

采用室内培养实验方法, 以植物的生长量、过氧化氢酶(CAT)和过氧化物酶(POD)活性变化作为观测指标,研究了直链烷基苯磺酸钠(LAS)对稀脉浮萍(Lemna paucicostata L.)、满江红(Azolla imbricata(Roxb.) Nakai)、水网藻(Hydrodictyon sp.)生理生化特性的影响. 结果表明,当 LAS浓度超过 1 mg@ L-1时,稀脉浮萍的生长受到严重抑制,在 10、100 mg@ L-1下,出现负增长. CAT、POD活性变化与细胞受伤程度直接相关,可作为植物分子生态毒理学指标. LAS浓度在 0-10 mg@ L-1范围内,随着浓度升高,酶活性增加,清除细胞中由于 LAS产生的过氧化物伤害; 当浓度超过 10 mg@ L-1时,植物受到明显损伤,甚至死亡. 同时发现...

Effects of linear alkylbenzene sulfonate (LAS) on physiological and biochemical characteristics of Lemna paucicostata L., Azolla imbricata (Roxb.) Nakai and Hydrodictyon sp. was studied by several test indices: biomass increase, catalase (CAT) activity and peroxides (POD) activity. The results showed that the biomass increase of Lemna paucicostata was seriously inhibited when concentration of LAS exceeded 1 mg·L-1, and it was a negative number at concentrations of 10 and 100 mg·L-1. The changes of activities for CAT and POD directly related t...