| 汞胁迫下外源Ca2＋对蜈蚣草生物量和汞累积的影响 |
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| 引用本文： | 杨立昌,乙引,张习敏,徐小蓉,刘玉.汞胁迫下外源Ca2＋对蜈蚣草生物量和汞累积的影响[J].安徽农业科学,2009,37(27):13052-13053. |
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| 作者姓名： | 杨立昌 乙引 张习敏 徐小蓉 刘玉 |
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| 作者单位： | 贵州师范大学生命科学学院,贵州贵阳,550001 |
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| 摘 要： | 目的]探讨汞胁迫下外源Ca2＋对蜈蚣草生物量和汞累积的影响。方法]以蜈蚣草为材料，用含不同浓度汞（0、5、10mmol／L）和Ca2＋（0．03、2．50、5．00mmol／L）的Hoagland营养液处理，测定各处理的生物量及汞与Ca2＋含量。结果]汞和Ca2＋处理降低了蜈蚣草的生物量；Ca2＋加速蜈蚣草对汞的吸收；汞抑制其对Ca2＋的吸收。结论]外源Ca2＋可以加速蜈蚣草吸收环境中的汞。
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| 关 键 词： | 汞胁迫 蜈蚣草 钙 生物量 |
Effects of External Ca~(2+) on the Biomass and Mercury Accumulation in Pteris vittata L. under Mercury Stress |
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| YANG Li-chang et al.Effects of External Ca~(2+) on the Biomass and Mercury Accumulation in Pteris vittata L. under Mercury Stress[J].Journal of Anhui Agricultural Sciences,2009,37(27):13052-13053. |
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| Authors: | YANG Li-chang |
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| Institution: | YANG Li-chang et al(School of Life Science,Guizhou Normal University,Guiyang,Guizhou 550001) |
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| Abstract: | Objective] The research aimed to discuss the effect of external calcium on biomass and mercury accumulation in Pteris vittata L.under mercury stress.Method] The different concentration of mercury(0,5 and 10 mmol/L) and calcium(0.03,2.5 and 5 mmol/L) were added to Hoagland solution,and Pteris vittata were cultured in greenhouse.The biomass,mercury and calcium content were determined.Result] The biomass decreased in Pteris vittata under mercury and calcium treatment.Calcium could promote that Pteris vittat... |
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| Keywords: | Mercury stress Pteris vittata Calcium Biomass |
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