摘要
采用土培方法探讨大叶茼蒿幼苗对芘胁迫的响应。结果表明:芘对大叶茼蒿种子发芽率无影响,对幼苗株高、根长和叶面积有显著抑制;芘处理的大叶茼蒿幼苗叶内叶绿素a、叶绿素b含量显著下降,丙二醛(MDA)含量、细胞质膜透性(CMP)显著增加;在芘浓度大于50 mg/kg时,超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性均受到抑制。
Responses of growth and several physiological characteristics of Chrysanthemum coronarium seedling under pyrene stress in soil were studied. The results showed that pyrene had little effects on the seed germination, but suppressed significantly the plant height, root length and leaf area. Pyrene stress brought about the reduction of chlorophyll a, chlorophyll b obviously. The MDA contents, CMP contents in seedling were enhance＆ SOD, POD and CAT activity in seedling were suppressed by pyrene（〉50 mg/kg）.
出处
《北方园艺》
CAS
北大核心
2010年第11期22-24,共3页
Northern Horticulture
关键词
芘
大叶茼蒿
生理指标
抗氧化酶活性
pyrene
Chrysanthemum coronarium
physiological indexes
antioxidant enzyme activity
