scholarly journals Flux Connections Between Gluconate Pathway, Glycolysis, and Pentose–Phosphate Pathway During Carbohydrate Metabolism in Bacillus megaterium QM B1551

2018 ◽  
Vol 9 ◽  
Author(s):  
Julie A. Wushensky ◽  
Tracy Youngster ◽  
Caroll M. Mendonca ◽  
Ludmilla Aristilde
Keyword(s):  
Carbohydrate Metabolism ◽  
Bacillus Megaterium ◽  
Pentose Phosphate Pathway ◽  
Pentose Phosphate

scholarly journals Activity of Energy and Carbohydrate Metabolism Enzymes in the Juvenile Pink Salmon Oncorhynchus gorbuscha (Walb.) during the Transition from Freshwater to a Marine Environment

2021 ◽  
Vol 48 (5) ◽  
pp. 546-554
Author(s):  
M. V. Churova ◽  
N. S. Shulgina ◽  
M. Yu. Krupnova ◽  
D. A. Efremov ◽  
N. N. Nemova
Keyword(s):  
Carbohydrate Metabolism ◽  
Marine Environment ◽  
Pentose Phosphate Pathway ◽  
Anaerobic Metabolism ◽  
Pink Salmon ◽  
Atp Synthesis ◽  
Pentose Phosphate ◽  
Oncorhynchus Gorbuscha ◽  
Biochemical Adaptation ◽  
Metabolism Enzymes

Abstract Biochemical adaptations of energy metabolism and some pathways of glucose oxidation during a change in salinity of the environment in larvae and smolts of the pink salmon Oncorhynchus gorbuscha (Walb.) inhabiting the White Sea were studied. We assayed the activity of energy and carbohydrate metabolism enzymes (cytochrome c oxidase (COХ), lactate dehydrogenase (LDH), glucose-6-phosphate dehydrogenase (G6PDH), 1-glycerophosphate dehydrogenase (1-GPDH), and aldolase) in pink salmon larvae in a short-term aquarium experiment and in pink salmon smolts in a long-term cage experiment simulating the transition of juveniles from freshwater to a marine environment. A decrease in the activity of COX, LDH, 1‑GPDH, and aldolase already in the first hour after the transfer of larvae to seawater was shown. Smolts kept in the estuary and in the sea had low levels of activity of 1-GPDH and aldolase in comparison with individuals from the river. Most likely, in the salmon juveniles studied, there was a redistribution of carbohydrates between the reactions of aerobic and anaerobic metabolism in favor of anaerobic ATP synthesis. No changes in the enzyme activity of the pentose phosphate pathway, G-6-PDH, were found in either larvae or smolts compared with the individuals kept in freshwater. Maintenance of the required levels of anaerobic metabolism and of the pentose phosphate pathway is probably one of the mechanisms of biochemical adaptation of pink salmon to changes in salinity.

scholarly journals Carbohydrate metabolism of Xylella fastidiosa: Detection of glycolytic and pentose phosphate pathway enzymes and cloning and expression of the enolase gene

2003 ◽  
Vol 26 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Agda Paula Facincani ◽  
Jesus Aparecido Ferro ◽  
João Martins Pizauro Jr. ◽  
Haroldo Alves Pereira Jr. ◽  
Eliana Gertrudes de Macedo Lemos ◽  
...  
Keyword(s):  
Carbohydrate Metabolism ◽  
Pentose Phosphate Pathway ◽  
Xylella Fastidiosa ◽  
Pentose Phosphate ◽  
Cloning And Expression

Pathways of carbohydrate metabolism in Mycobacterium tuberculosis H37Rv

1975 ◽  
Vol 21 (11) ◽  
pp. 1688-1691 ◽  
Author(s):  
N. Jayanthi Bai ◽  
M. Ramachandra Pai ◽  
P. Suryanarayana Murthy ◽  
T. A. Venkitasubramanian
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Carbohydrate Metabolism ◽  
Pentose Phosphate Pathway ◽  
Glucose Oxidation ◽  
Pentose Phosphate ◽  
Tuberculosis H37rv ◽  
Mycobacterium Tuberculosis H37rv ◽  
Cellular Components

Radiorespirometric studies using glucose labelled at 1, 2, 3–4, and 6 positions and enzymatic studies were conducted to determine the primary pathways of glucose dissimilation in Mycobacterium tuberculosis H37Rv. The pattern of 14CO2 recovery was C3−4 > C1 > C6 = C2. The Embden–Meyerhof pathway was found to be the predominant pathway for glucose oxidation, operative to the extent of 94%. The pentose phosphate pathway accounted for the remaining 6%. Maximum incorporation of 14C into cellular components was from C2 and C6 labelled glucose.

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