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邻苯二酚对植物细胞生理毒性初步研究

发表时间:2009-12-31  浏览量:1875  下载量:882
全部作者: 杜英君,关文彬,史奕,王琛瑞,曲向荣,张林楠,沈欣军,王淼,靳月华
作者单位: 沈阳工业大学理学院;北京林业大学自然保护区学院;中国科学院沈阳应用生态研究所
摘 要: 为研究邻苯二酚对植物细胞代谢的生理毒性,以树木为材料进行紫外线-B(ultraviolet-B, UV-B)[11.66 kJ/(m2·d)]和CO2浓度倍增[(700±80) μmol/mol]复合作用及邻苯二酚处理。结果表明:UV-B 和CO2复合处理使白桦和红松幼苗针叶片邻苯二酚含量增加、叶绿素含量下降;经邻苯二酚处理的白桦和红松幼苗叶片的叶绿素,超氧化物歧化酶(superoxide dismutase,SOD),过氧化氢酶 (catalase,CAT), PSⅡ (photo systemⅡ)电子传递活性有不同程度的下降和破坏。以上结果说明邻苯二酚对细胞代谢可能具有生理毒性。
关 键 词: 环境污染及其防治;白桦;红松;紫外线-B和CO2复合处理;邻苯二酚;生理毒性
Title: Basic study on physiological toxicity of pyrocathechol on plant cells
Author: DU Yingjun, GUAN Wenbin, SHI Yi, WANG Chenrui, QU Xiangrong, ZHANG Linnan, SHEN Xinjun, WANG Miao, JIN Yuehua
Organization: College of Science, Shenyang University of Technology;College of Nature Conservation, Beijing Forestry University;Institute of Applied Ecology, Chinese Academy of Science
Abstract: In order to study physiological toxicity of pyrocatechol on metabolic of plant cells, the paper used treated tree seedlings with ultraviolet-B (UV-B)[11.66 kJ/(m2·d)] and CO2 [(700±80) μmol/mol]combined treatment and pyrocatechol treatment. The results showed that pyrocatechol content increased while chlorophyll content decreased under UV-B and CO2 combine treatment, and decreasing and damage of electron transport activities of superoxide dismutase (SOD), catalase (CAT) and photo systemⅡ (PSⅡ) in white birch (Betula platyphylla) leaves and Korean pine (Pinus koraiensis) seedling needls were observed. The results show that pyrocatechol may have physiological toxicity on metabolism of cells.
Key words: environment pollution and protection; white birch; Korean pine; ultraviolet-B and CO2 combined treatment; pyrocatechol; physiological toxicity
发表期数: 2009年12月第24期
引用格式: 杜英君,关文彬,史奕,等. 邻苯二酚对植物细胞生理毒性初步研究[J]. 中国科技论文在线精品论文,2009,2(24):2632-2636.
 
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