PHOTOSYNTHESIS IN RHODOSPIRILLUM RUBRUM .3. METABOLIC CONTROL OF REDUCTIVE PENTOSE PHOSPHATE AND TRICARBOXYLIC ACID CYCLE ENZYMES
PHOTOSYNTHESIS IN RHODOSPIRILLUM RUBRUM .3. METABOLIC CONTROL OF REDUCTIVE PENTOSE PHOSPHATE AND TRICARBOXYLIC ACID CYCLE ENZYMES
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DOI：
10.1104/pp.42.4.497
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发表时间：
1967-01-01
期刊：
影响因子：
7.4
通讯作者：
FULLER, RC
中科院分区：
文献类型：
--
作者：
ANDERSON, L;FULLER, RC
还原性戊糖磷酸循环的酶包括核酮糖-二磷酸羧化酶、核酮糖-5-磷酸激酶、核糖-5-磷酸异构酶、醛缩酶、甘油醛-3-磷酸脱氢酶和碱性果糖-1，6-二磷酸酶。红色。酶的水平进行了测量，在这种有机体生长的光和黑暗的异养以及。几个，但不是所有的，这些酶似乎是在代谢控制下，介导的外源性碳和氮化合物。光对这种光合细菌中这些酶的存在或水平没有影响。三羧酸循环酶和烯醇化酶存在于R.红在需氧、自养或光异养条件下培养，无论是在释放氢的培养物中还是在未观察到氢释放的条件下。光对这些酶的存在或水平没有明显的影响。
Enzymes of the reductive pentose phosphate cycle including ribulose-diphosphate carboxylase, ribulose-5-phosphate kinase, ribose-5-phosphate isomerase, aldolase, glyceraldehyde-3-phosphate dehydrogenase and alkaline fructose-l,6-diphosphatase were shown to be present in autotrophically grown R. rubrum. Enzyme levels were measured in this organism grown photo- and dark hetero-trophically as well. Several, but not all, of these enzymes appeared to be under metabolic control, mediated by exogenous carbon and nitrogen compounds. Light had no effect on the presence or levels of any of these enzymes in this photosynthetic bacterium. The enzymes of the tricarboxylic acid cycle and enolase were shown to be present in R. rubrum cultured aerobically, autotrophically, or photohetero- trophically, both in cultures evolving hydrogen and under conditions where, hydrogen evolution is not observed. Light had no clearly demonstrable effect on the presence or levels of any of these enzymes.