| 镉胁迫下旱柳无性系耐镉性变异及生理变化 |
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| 引用本文： | 徐爱春,陈益泰,陈庆红,王树凤.镉胁迫下旱柳无性系耐镉性变异及生理变化[J].浙江林学院学报,2009,26(5):674-681. |
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| 作者姓名： | 徐爱春 陈益泰 陈庆红 王树凤 |
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| 作者单位： | 1. 湖北省农业科学院,果树茶叶研究所,湖北,武汉,430209
2. 中国林业科学研究院,亚热带林业研究所,浙江,富阳 |
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| 基金项目： | 国家林业局重点引进国际先进农业科学技术计划(948计划)项目 |
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| 摘 要： | 以10个旱柳Salix matsudana无性系为试验材料,研究了水溶液中镉胁迫时旱柳耐镉性性状的遗传特性、耐镉性强弱及叶片生理性状变化。结果表明：水溶液中镉质量浓度为30～60mg·L^-1时,旱柳地上部镉质量分数、地上部生物量、根系生物量、地上部镉积累量、根系镉积累量和叶绿素质量分数等6个性状的耐镉性遗传力较高。在此条件下,10个旱柳无性系耐镉性强弱顺序为13号〉8号〉16号≈18号≈9号〉2号≈4号〉10号〉3号〉5号。镉胁迫下,旱柳叶片生理性状变化表现为：叶绿素和可溶性蛋白质量分数降低、膜透性减少、丙二醛质量分数增加、脯氨酸质量分数变化无一致规律。
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| 关 键 词： | 植物学 旱柳 镉 耐性 生理变化 |
Cd tolerance and leaf physiology changes in ten clones of Salix matsudana with Cd stress |
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| XU Ai-chun,CHEN Yi-tai,CHEN Qing-hong,WANG Shu-feng.Cd tolerance and leaf physiology changes in ten clones of Salix matsudana with Cd stress[J].Journal of Zhejiang Forestry College,2009,26(5):674-681. |
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| Authors: | XU Ai-chun CHEN Yi-tai CHEN Qing-hong WANG Shu-feng |
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| Institution: | XU Ai-chun, CHEN Yi-tai, CHEN Qing-hong, WANG Shu-feng (1. Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan 430209, Hubei, China; 2. Research Institute of Subtropical Forestry, The Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China) |
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| Abstract: | It is serious for Cd contamination in environment in currently,there is large potential of phy-toremediation of Cd contamination. For provide excellent phytoremediation material,this study focused on willow Cd tolerant heritability,ability of Cd colerance,and changes in leaf physiological characteristics with Cd stress by hydroponics. Ten clones （No.2,No.3,No.4,No.5,No.8,No.9,No.10,No.13,No. 16,and No.18） of Salix matsudana were used as the experimental material. Results indicated that when Cd concentration was 30 - 60 mg·L^-1, the content, mass, and amount of accumulation in aboveground or-gans, the mass and amount of accumulation in roots, and chlorophyll all had stronger heritability. For the 10 clones, Cd tolerance was in the order of： No.13〉No.8〉No.16 ≈ No.18 ≈No.9〉No.2〉No.4〉No. 10 〉No.3 〉5. Leaf physiology changes with Cd stress indicated that chlorophyll and dissolubility protein contents as well as conductance decreased, malondialdehyde （MDA） increased, and proline change followed no pattern. |
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| Keywords: | botany Salix matsudana cadmium（Cd） tolerance physiological change |
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