铅对沉水植物龙须眼子菜光合作用的影响 |
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引用本文: | 高海荣,黄振旭,卫世乾. 铅对沉水植物龙须眼子菜光合作用的影响[J]. 信阳师范学院学报(自然科学版), 2014, 0(2): 239-242 |
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作者姓名: | 高海荣 黄振旭 卫世乾 |
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作者单位: | 郑州师范学院化学系;许昌学院学报编辑部; |
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基金项目: | 河南省自然科学研究指导计划项目(2010B150031) |
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摘 要: | 采用实验室内植物块茎培养沉水植物的实验方法,研究了不同质量浓度Pb2+胁迫下龙须眼子菜的生长状况及光合作用参数的变化.结果表明:随着Pb2+浓度的提高,植株高度受到抑制、叶片黄化、植株根部部分变灰腐烂;叶绿素含量显著降低且与铅浓度呈现显著负相关;核酮糖二磷酸羧化酶活性先升高后降低,酶活性与Pb2+浓度呈显著负相关;磷酸烯醇式丙酮酸羧化酶活性变化小;碳酸酐酶活性先降低后上升.
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关 键 词: | Pb2+ 龙须眼子菜 叶绿素 RuBP羧化酶 PEP羧化酶 CA酶 |
The Effect of Pb~(2+) to the Photosynthesis of Aquatic Macrophyte Potamogeton pectinatus |
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Affiliation: | ,Department of Chemistry,Zhengzhou Normal University,Editorial Department of Journal,Xuchang University |
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Abstract: | Using the experiment method of tuber culture in the laboratory,the photosynthesis effects and physiological response of the aquatic macrophyte Potamogeton pectinatus were investigated in Pb2 +with different concentrations. The results showed that the Potamogeton pectinatus growth was inhibited with the increase of the concentration,chlorophyll content reduced significantly and showed negative correlation with Pb2 +concentrations,RuBPc activity first increased and then decreased,and it was negatively correlated with Pb2 +concentrations,PEPc activity changed little,CA activity first decreased and then increased. |
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Keywords: | Pb2 + Potamogeton pectinatus chlorophyll RuBPc PEPc CA |
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