干出和紫外辐射对坛紫菜光合作用的影响

被引：10

作者：

姜红霞 ^{[1
]}

高坤山 ^{[2
]}

机构：

[1] 常熟理工学院生物与食品工程学院

[2] 厦门大学近海海洋环境科学国家重点实验室

来源：

自然科学进展 | 2009年 / 19卷 / 08期

关键词：

坛紫菜; 干出; 紫外辐射; 色素; 光合活性;

D O I：

暂无

中图分类号：

S968.431 [];

学科分类号：

090801 ;

摘要：

以坛紫菜叶状体为材料,研究了干出和阳光紫外辐射(UVR)对其光合作用的影响.长时间干出和阳光UVR不能进一步诱导藻体合成紫外吸收物质,而且UVR对干出藻体的叶绿素a和类胡萝卜素合成有抑制作用.UVR显著抑制干出状态下藻体光系统II(PSII)的有效光化学效率和藻体的光合固碳速率,而且对光合活性的抑制作用随失水率的增大而增强.

引用

页码：835 / 840

页数：6

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