水华鱼腥藻生长与光合作用对大气CO2浓度升高的响应

被引：14

作者：

夏建荣

高坤山

叶海波

机构：

[1] 汕头大学海洋生物研究所,汕头大学海洋生物研究所,汕头大学海洋生物研究所汕头,汕头,中国科学院水生生物研究所,武汉,汕头

来源：

植物生态学报 | 2002年 / 06期

关键词：

水华鱼腥藻; CO2倍增; 光合作用; 生长;

D O I：

暂无

中图分类号：

Q948.8 [水生植物学];

学科分类号：

071012 ; 0713 ;

摘要：

为了探讨大气CO2 浓度升高对水华藻类的影响 ,利用水华鱼腥藻（Anabenaflosaquae）作为实验材料 ,研究了大气CO2 浓度加倍对其生长和光合作用的影响 ,结果显示大气CO2 浓度升高导致水华鱼腥藻的生物量、光饱和光合速率、光合效率和光系统II的光化学效率（Fv/Fm）明显提高 ,但对暗呼吸速率和光饱和点没有明显影响。CO2加倍条件下藻细胞光合作用对无机碳的亲和力降低 ,表明其利用HCO-3 的能力受到抑制。

引用

页码：652 / 655

页数：4

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