| Kinetics of glucose incorporation by Aphanocapsa 6714. | |
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MedLine Citation:
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PMID: 4199519 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Photoautotrophic metabolism of CO(2) was compared with glucose metabolism in the facultative unicellular blue-green alga, Aphanocapsa 6714. Glucose-fed cells incorporated more (14)C into phosphorylated sugar intermediates of the reductive and oxidative pentose phosphate cycles than autotrophic cells. The relative increases were: 140-fold in dark cells; 32-fold in dichlorophenylmethylurea (DCMU)-inhibited cells; and 16-fold in cells assumilating glucose during photosynthetic carbon reduction. On the other hand, incorporation of (14)C from glucose into 3-phosphoglycerate and the amino acid pools of glutamate and aspartate was reduced in dark cells. Rates of protein synthesis in dark and DCMU-inhibited cells were reduced 50 and 80% compared to photoautotrophic cells. In cells assimilating glucose during photosynthesis, rates of (14)C incorporation into the two amino acids and protein were the same as in photoautotrophic cells. Chase experiments, using an excess of (12)C-glucose and CO(2), revealed slow turnover of carbon in dark cells and intermediate turnover rates in DCMU-inhibited cells, when compared to cells assimilating glucose during photosynthesis. |
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Authors:
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R A Pelroy; J A Bassham |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of bacteriology Volume: 115 ISSN: 0021-9193 ISO Abbreviation: J. Bacteriol. Publication Date: 1973 Sep |
Date Detail:
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Created Date: 1973-11-03 Completed Date: 1973-11-03 Revised Date: 2010-09-13 |
Medline Journal Info:
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Nlm Unique ID: 2985120R Medline TA: J Bacteriol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 943-8 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aspartic Acid
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biosynthesis Carbon Dioxide / metabolism Carbon Isotopes Cyanobacteria / drug effects, metabolism* Darkness Fructosephosphates / biosynthesis Glucose / metabolism* Glucosephosphates / biosynthesis Glutamates / biosynthesis Glycerophosphates / biosynthesis Glycogen / biosynthesis Herbicides / pharmacology Oxidation-Reduction Photophosphorylation Plant Proteins / biosynthesis Urea / pharmacology |
| Chemical | |
Reg. No./Substance:
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0/Carbon Isotopes; 0/Fructosephosphates; 0/Glucosephosphates; 0/Glutamates; 0/Glycerophosphates; 0/Herbicides; 0/Plant Proteins; 124-38-9/Carbon Dioxide; 50-99-7/Glucose; 56-84-8/Aspartic Acid; 57-13-6/Urea; 9005-79-2/Glycogen |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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