| 海滩植物厚藤(Ipomoea pescaprae)的生物学及生理生态特性 |
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| 引用本文： | 欧阳蒲月,刘楠,张伟伟,王俊,简曙光.海滩植物厚藤(Ipomoea pescaprae)的生物学及生理生态特性[J].湖南科技大学学报(自然科学版),2011(4). |
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| 作者姓名： | 欧阳蒲月 刘楠 张伟伟 王俊 简曙光 |
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| 作者单位： | 广东食品药品职业学院;中国科学院华南植物园;中国科学院研究生院; |
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| 基金项目： | 科技部支撑计划项目(2008BAJ10B03); 广东省科技计划项目(2008A060207017,2008B020300011,2010B060200039) |
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| 摘 要： | 厚藤(Ipomoea pescaprae L.)是一种具有重要生态、药用和观赏价值的海滩植物,在滨海地区海滩固沙、绿化及生态恢复等方面发挥重要作用.通过对厚藤的生物学及生理生态特性进行研究发现,厚藤属典型阳生性植物,具有较高的光合潜能.其快速光响应曲线(RLC)显示厚藤的相对电子传递速率(rETR)随光合有效辐射(PAR)的升高而逐渐增加,并在2 551μmolm-2s-1时达到最大值.厚藤叶绿素荧光参数显示相对较高的能量利用效率.厚藤叶片的叶绿素含量较低,叶绿素a/b比值符合理论值(3︰1).厚藤对营养元素的利用率较高,其中叶片的N,P,K和Na含量最高,根部Ca和Mg含量最高,这些特点利于厚藤的生长和光合作用.本研究为厚藤的引种、栽培及开发利用提供重要的理论依据.
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| 关 键 词： | 厚藤 海滩植物 生物学及生理生态特性 开发利用 |
Biological and ecophysiological characteristics of a beach plant Ipomoea pescaprae |
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| OUYANG Pu-yue,LIU Nan,ZHANG Wei-wei,WANG Jun,JIAN Shu-guang.Biological and ecophysiological characteristics of a beach plant Ipomoea pescaprae[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2011(4). |
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| Authors: | OUYANG Pu-yue LIU Nan ZHANG Wei-wei WANG Jun JIAN Shu-guang |
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| Institution: | OUYANG Pu-yue1,LIU Nan2,ZHANG Wei-wei2,3,WANG Jun2,JIAN Shu-guang2(1.Guangdong Food and Drug Vocational College,Guangzhou 510520,China,2.South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,3.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | Ipomoea pescaprae L.is a beach plant with importantecological,medicinal and ornamental values.It plays an important role in sand fixation,greening and ecological restoration in coastal regions.The current study on the biological and ecophysiological characteristics of I.pescaprae showed that this species is a typical heliophyte with high photosynthetic capacity.The rapid light response curves(RLC) of I.pescaprae showed that relative electron transport rate(rETR) increased with elevated photosynthetic active... |
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| Keywords: | Ipomoea pescaprae L beach plant biological and ecophysiological characteristics exploitation and utilization |
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