大型海藻光合碳代谢类型的研究进展

自然杂志 ›› 2013, Vol. 35 ›› Issue (4): 264-273.

大型海藻光合碳代谢类型的研究进展

芦笛

博士研究生，英国伦敦大学学院, 伦敦 WC1E 6BT

收稿日期:2012-12-25 修回日期:2013-01-25 出版日期:2013-08-25 发布日期:2013-08-25

Progress on photosynthetic carbon metabolism types in marine macroalgae

LU Di

Ph. D. Candidate, University College London, London WC1E 6BT, UK

Received:2012-12-25 Revised:2013-01-25 Online:2013-08-25 Published:2013-08-25

摘要/Abstract

摘要： 作为海洋藻类的一部分，大型海藻通过光合作用参与了海洋对全球CO2和O2的周转，其食用和药用价值也
得到了广泛应用。因此无论从生态还是经济角度来看，研究大型海藻通过光合作用对CO2进行固定和代谢的过程都
具有重要意义。到目前为止，世界上对大型海藻光合碳代谢途径的研究从代谢组学和酶学角度证明了大型海藻体内
除了C3途径外，还同时存在不能确定完整与否的PEPCK 或PEPC 类型的C4途径或CAM途径；光合气体交换的结
果显示其光合碳代谢途径从整体上表现出类似C4(C4-like)类型。这种情况与一些体内存在C4途径的陆生C3植物相
似。因此大型海藻光合碳代谢途径仍然有待深入研究。

关键词: 大型海藻, 光合, 碳代谢类型

Abstract: As a part of marine algae, marine macroalgae, whose edible and medicinal values are widely applied, participate in
global CO2 and O2 turnover through photosynthesis. Therefore, when viewed from ecology as well as economics, the process of
photosynthetic CO2 fixation and metabolism in marine macroalgae is of great significance. Up to the present, metabonomics and
enzymology researches on photosynthetic carbon metabolism in marine macroalgae have proved the existence of the PEPCK- or
PEPC-type C4 pathway as well as the CAM pathway in addition to the C3 pathway, although the integrality of the pathways is still
unknown. Moreover, the results of photosynthetic gas exchange indicate that the photosynthetic carbon metabolism pathway in
macroalgae performs the C4-like type on the whole. This situation resembles some terrestrial C3 plants with additional C4 pathway.
Therefore, researches on photosynthetic carbon metabolism pathways in macroalgae remain to be explored in depth in the future.

Key words: marine macroalgae, photosynthesis, carbon metabolism type

芦笛. 大型海藻光合碳代谢类型的研究进展[J]. 自然杂志, 2013, 35(4): 264-273.

LU Di. Progress on photosynthetic carbon metabolism types in marine macroalgae[J]. Chinese Journal of Nature, 2013, 35(4): 264-273.