CO2 ACCUMULATION BY CHLORELLA SACCHAROPHILA (CHLOROPHYCEAE) AT LOW EXTERNAL pH: EVIDENCE FOR ACTIVE TRANSPORT OF INORGANIC CARBON AT THE CHLOROPLAST ENVELOPE 1
CO2 ACCUMULATION BY CHLORELLA SACCHAROPHILA (CHLOROPHYCEAE) AT LOW EXTERNAL pH: EVIDENCE FOR ACTIVE TRANSPORT OF INORGANIC CARBON AT THE CHLOROPLAST ENVELOPE 1
复制标题
低外部 pH 条件下嗜糖小球藻（绿藻科）的 CO2 积累：叶绿体包膜上无机碳主动运输的证据 1
DOI：
--
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
J. Beardall
中科院分区：
文献类型：
--
作者：
J. Beardall
研究了耐酸嗜糖小球藻（Chlorella saccharophila（Krüger）Nadson）的CO2吸收特性。这些，再加上内部无机C浓度的直接估计，表明这种藻类的空气适应细胞具有与绿藻纲和蓝藻纲其他成员中报道的相似的CO2积累机制。这种积累机制在外部pH值为4或更低的条件下运行。在这些条件下，CO2必须是穿过质膜的碳物种，并且由于初步证据表明运输机制是HCO 3-的主动初级单转运，因此提出CO2积累机制的位点是叶绿体被膜。
The CO2 uptake characteristics of the acid‐tolerant alga Chlorella saccharophila (Krüger) Nadson have been examined. These, together with direct estimations of internal inorganic C concentrations, indicate that air‐adapted cells of this alga possess a CO2 accumulation mechanism similar to that reported in other members of the Chlorophyceae and in Cyanophyceae. This accumulation mechanism operates at external pH values of 4 and less. Under these conditions CO2 must be the carbon species crossing the plasmlemma, and since preliminary evidence suggests that the transport mechanism is active primary uniport of HCO3–, it is proposed that the site of the CO2 accumulation mechanism is the chloroplast envelope.