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Microalgal carbon-dioxide-concentrating mechanisms: Chlamydomonas inorganic carbon transporters

机译：微藻二氧化碳浓缩机制：衣藻无机碳转运蛋白

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摘要

Aquatic photosynthetic micro-organisms have adapted to the variable and often-limiting availability of CO2, and inorganic carbon (Ci) in general, by development of inducible CO2-concentrating mechanisms (CCMs) that allow them to optimize carbon acquisition. Both microalgal and cyanobacterial CCMs function to facilitate CO2 assimilation when Ci is limiting via active Ci uptake systems to increase internal Ci accumulation and carbonic anhydrase activity to provide elevated internal CO2 concentrations through the dehydration of accumulated bicarbonate. These CCMs have been studied over several decades, and details of the cyanobacterial CCM function have emerged over recent years. However, significant advances in understanding of the microalgal CCM have been more recent. With the aid of mutational approaches and the availability of multiple microalgal genome sequences, an integrated picture of the functional components of the microalgal CCMs is emerging, together with the molecular details regarding the function and regulation of the CCM. This review will focus on the recent advances in identifying and characterizing the Ci transport components of the microalgal CCM, especially in the model organism Chlamydomonas reinhardtii Dangeard.
机译：通过开发诱导型CO 2 -浓缩技术，水生光合微生物已适应了CO 2 和无机碳（Ci）的可变且经常受到限制的可用性机制（CCM），使他们能够优化碳的获取。当通过活性Ci摄取系统限制Ci以增加内部Ci积累和碳酸酐酶活性以提供升高的内部CO 2 浓度时，微藻类和蓝细菌CCM均起到促进CO 2 同化的作用。通过积累的碳酸氢盐脱水。这些CCM已经研究了数十年，并且近年来出现了蓝细菌CCM功能的细节。但是，最近对微藻CCM的理解有了重大进展。借助突变方法和多个微藻基因组序列的可用性，微藻CCM功能组件的综合图景以及有关CCM功能和调控的分子详细信息不断出现。这项审查将侧重于鉴定和表征微藻CCM的Ci转运成分的最新进展，尤其是在模式生物衣藻（Chlamydomonas reinhardtii Dangeard）中。

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    《Journal of Experimental Botany》 |2008年第7期|p.1463-1473|共11页
  • 作者

    Martin H. Spalding*;

  • 作者单位

    Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa 50011, USA;

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