The role of the chloroplast in inorganic carbon uptake by eukaryotic algae
The role of the chloroplast in inorganic carbon uptake by eukaryotic algae
复制标题
叶绿体在真核藻类吸收无机碳中的作用
作者：
J. Moroney;Zhi
综述了叶绿体在真核藻类适应低二氧化碳中的作用。由于二氧化碳浓缩机制 (CCM) 的存在，真核藻类可以在非常低的二氧化碳水平下生长。本综述的重点是关键光合酶的定位，如核酮糖-1,5-二磷酸羧化酶加氧酶 (Rubisco) 和碳酸酐酶，以及叶绿体内 CCM 和光呼吸循环的假定成分的位置。先前的免疫定位研究将多达 99% 或少至 5% 的细胞 Rubisco 置于叶绿体蛋白核中。总结了这些不同的结果，并提供了另一种解释。不同的结果似乎是由于藻类的生长状况以及定量的差异造成的。有证据表明，大部分 Rubisco 位于蛋白核内。我们还总结了最近发现的类囊体结合碳酸酐酶，该酶对于低二氧化碳条件下的生长至关重要。一个模型部门...
The role of the chloroplast in the adaptation to low CO2 by eukaryotic algae is reviewed. Eukaryotic algae can grow on very low CO2 levels because of the presence of a CO2 concentrating mechanism (CCM). This review is focused on the localization of key photosynthetic enzymes such as ribulose-1,5-bisphosphate carboxylase-oxygenase (Rubisco) and carbonic anhydrase as well as the location of presumptive components of the CCM and photorespiratory cycle within the chloroplast. Previous immunolocalization studies place as much as 99% or as little as 5% of the cell's Rubisco in the chloroplast pyrenoid. These different results are summarized, and an alternative explanation is provided. The different results appear to be due to the growth regime of the algae as well as differences in quantitation. Evidence suggests that a large majority of Rubisco is located within the pyrenoid. We have also summarized the recent discovery of a thylakoid-bound carbonic anhydrase that is essential to growth on low CO2. A model dep...
影响因子：
4.1
作者：
HewettEmmett, D;Tashian, RE
通讯作者：
Tashian, RE