| 大叶茼蒿幼苗对芘胁迫的响应 |
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| 引用本文： | 陈世军,黄烈琴,祝贤凌,冯秀珍,梅运群.大叶茼蒿幼苗对芘胁迫的响应[J].北方园艺,2010(11):22-24. |
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| 作者姓名： | 陈世军 黄烈琴 祝贤凌 冯秀珍 梅运群 |
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| 作者单位： | 黔南民族师范学院,生命科学系,贵州,都匀,558000;黔南民族师范学院,生命科学系,贵州,都匀,558000;黔南民族师范学院,生命科学系,贵州,都匀,558000;黔南民族师范学院,生命科学系,贵州,都匀,558000;黔南民族师范学院,生命科学系,贵州,都匀,558000 |
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| 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。
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| 关 键 词： | 芘 大叶茼蒿 生理指标 抗氧化酶活性 |
Responses of Chrysanthemum coronarium Seedling under Pyrene Stress |
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| CHEN Shi-jun,HUANG Lie-qin,ZHU Xian-ling,FENG Xiu-zhen,MEI Yun-qun.Responses of Chrysanthemum coronarium Seedling under Pyrene Stress[J].Northern Horticulture,2010(11):22-24. |
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| Authors: | CHEN Shi-jun HUANG Lie-qin ZHU Xian-ling FENG Xiu-zhen MEI Yun-qun |
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| Institution: | CHEN Shi-jun,HUANG Lie-qin,ZHU Xian-ling,FENG Xiu-zhen,MEI Yun-qun(Department of Life Sciences,Qiannan National Normal College,Duyun,Guizhou 558000) |
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| Abstract: | 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 enhanced.SOD,POD and CAT activity in seedling were suppressed by pyrene(>50 mg/kg). |
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| Keywords: | pyrene Chrysanthemum coronarium physiological indexes antioxidant enzyme activity |
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