植物利用碳酸氢根离子的特征分析
The Characteristics of Bicarbonate Used by Plants
查看参考文献20篇
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文摘
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以构树、椿树、金银花、盐肤木等植物为材料,分析植物的碳酸酐酶活力与δ13C的关系,结果表明,碳酸酐酶的活力与δ13C值呈显著的正相关。以甘蓝型油菜、诸葛菜、构树、桑树为实验材料,通过测定植物叶片稳定碳同位素组成以及光合速率来获得植物利用碳酸氢根离子的信息,结果表明,构树和诸葛菜碳酸氢根离子的利用能力明显地大于桑树和甘蓝型油菜。以构树、芥菜型油菜和诸葛菜叶片为实验材料,研究了它们的碳酸酐酶活力与δ13C的变异性,结果表明,构树和诸葛菜叶片的δ13C值具有较大的变异性。植物对碳酸氢根离子的利用能力的大小与碳酸酐酶活力以及植物的喀斯特适生性有关,植物能交替利用碳酸氢根离子作无机碳源。 |
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其他语种文摘
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The relationship between foliar carbonic anhydrase activity andδ13C of Broussonetia papyrifera,Toona sinensis,Lonicera japonica,Rhuschinensisand other plant species was analyzed.The results showed that there was a significantly positive correlation between foliar carbonic anhydrase activity andδ13C.The information on bicarbonate used by plants was obtained viadetermining foliar stable carbon isotopic composition and net photosynthetic rate of Brassica napus,Orychophragmus violaceus,Broussonetia papyriferaand Morus alba.The results showed that the bicarbonate-use capacity of Broussonetia papyriferaand Orychophragmus violaceuswas greater than that of Morus alba and Brassica napus.The variability of foliar carbonic anhydrase activity andδ13C in Broussonetia papyrifera,Brassica junceaand Orychophragmus violaceuswas studied.The results showed that theδ13C values of Broussonetia papyrifera,and Orychophragmus violaceusindicated greater variability.The bicarbonate-use capacity of plants was related to foliar carbonic anhydrase activity and the adaptability to karst,and plants can use bicarbonate as inorganic carbon sources,alternatively. |
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来源
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地球与环境
,2011,39(2):273-277 【核心库】
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关键词
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碳酸盐利用能力
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稳定碳同位素组成
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碳酸酐酶
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喀斯特适生性
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地址
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1672-9250 |
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学科
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地质学 |
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基金
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国家自然科学基金项目
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文献收藏号
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CSCD:4241493
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