THE BIOSYNTHESIS OF CELL WALL CARBOHYDRATES: III. FURTHER STUDIES ON FORMATION OF CELLULOSE AND XYLAN FROM LABELED MONOSACCHARIDES IN WHEAT PLANTS

1956 ◽  
Vol 34 (1) ◽  
pp. 405-413 ◽  
Author(s):  
H. A. Altermatt ◽  
A. C. Neish
Keyword(s):  
Cell Wall ◽  
Leuconostoc Mesenteroides ◽  
Carbon Skeleton ◽  
The Other ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Polysaccharide Synthesis ◽  
Diphosphate Glucose ◽  
Cell Wall Carbohydrates

D-Glucose-1-C14, D-glucose-2-C14, D-xylose-2-C14, D-xylose-5-C14, D-arabinose-1-C14, D-glucuronolactone-1-C14, D-glucitol-1-C14, D-mannitol-1-C14, D-arabitol-1-C14, and D-arabitol-5-C14 were administered to wheat plants. The cellulose and xylan were isolated after a period of metabolism varying from 2 to 23 hr. D-Mannitol and D-arabitol were not converted to either cellulose or xylan while D-arabinose was utilized slightly. The other compounds gave rise to both labelled cellulose and xylan. The glucose and xylose, obtained from the cellulose and xylan respectively, were degraded by fermentation with Leuconostoc mesenteroides. Glucose and glucuronolactone were equally good precursors of xylan and were superior to the other compounds tried. They appeared to give rise to units for xylan formation by loss of carbon-6. Free xylose was converted to xylan units only after an extensive rearrangement of the carbon skeleton, such as occurred in the conversion of xylose to cellulose units. A hypothetical outline of polysaccharide synthesis, involving uridine diphosphate glucose as the central intermediate, is suggested to explain the data.

THE BIOSYNTHESIS OF CELL WALL CARBOHYDRATES: III. FURTHER STUDIES ON FORMATION OF CELLULOSE AND XYLAN FROM LABELED MONOSACCHARIDES IN WHEAT PLANTS

1956 ◽  
Vol 34 (3) ◽  
pp. 405-413 ◽  
Author(s):  
H. A. Altermatt ◽  
A. C. Neish
Keyword(s):  
Cell Wall ◽  
Leuconostoc Mesenteroides ◽  
Carbon Skeleton ◽  
The Other ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Polysaccharide Synthesis ◽  
Diphosphate Glucose ◽  
Cell Wall Carbohydrates

D-Glucose-1-C14, D-glucose-2-C14, D-xylose-2-C14, D-xylose-5-C14, D-arabinose-1-C14, D-glucuronolactone-1-C14, D-glucitol-1-C14, D-mannitol-1-C14, D-arabitol-1-C14, and D-arabitol-5-C14 were administered to wheat plants. The cellulose and xylan were isolated after a period of metabolism varying from 2 to 23 hr. D-Mannitol and D-arabitol were not converted to either cellulose or xylan while D-arabinose was utilized slightly. The other compounds gave rise to both labelled cellulose and xylan. The glucose and xylose, obtained from the cellulose and xylan respectively, were degraded by fermentation with Leuconostoc mesenteroides. Glucose and glucuronolactone were equally good precursors of xylan and were superior to the other compounds tried. They appeared to give rise to units for xylan formation by loss of carbon-6. Free xylose was converted to xylan units only after an extensive rearrangement of the carbon skeleton, such as occurred in the conversion of xylose to cellulose units. A hypothetical outline of polysaccharide synthesis, involving uridine diphosphate glucose as the central intermediate, is suggested to explain the data.

scholarly journals Uridine Diphosphate Glucose Pyrophosphorylase in Dictyostelium discoideum

1969 ◽  
Vol 244 (11) ◽  
pp. 2990-2995 ◽  
Author(s):  
P C Newell ◽  
M Sussman
Keyword(s):  
Dictyostelium Discoideum ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose

scholarly journals Preparation and Properties of Uridine Diphosphate Glucose-Glycogen Transglucosylase

1962 ◽  
Vol 237 (6) ◽  
pp. 1772-1777
Author(s):  
Rosalind Kornfeld ◽  
David H. Brown
Keyword(s):  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose

scholarly journals Uridine Diphosphate Glucose Dehydrogenase

1968 ◽  
Vol 243 (8) ◽  
pp. 1692-1697
Author(s):  
P Roy-Burman ◽  
S Roy-Burman ◽  
D W Visser
Keyword(s):  
Glucose Dehydrogenase ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose ◽  
Uridine Diphosphate Glucose Dehydrogenase

scholarly journals Studies on glycogen synthesis in pigeon liver homogenates. Glycogen synthesis from glucose monophosphates and uridine diphosphate glucose

1967 ◽  
Vol 105 (2) ◽  
pp. 515-519 ◽  
Author(s):  
V. N. Nigam
Keyword(s):  
Time Course ◽  
Initial Rate ◽  
Glycogen Synthesis ◽  
Uridine Diphosphate ◽  
Cytoplasmic Fraction ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose ◽  
Liver Homogenates ◽  
Pigeon Liver ◽  
Glycogen Formation

Comparative time-course studies of glycogen synthesis from glucose 6-phosphate, glucose 1-phosphate and UDP-glucose show that glucose 1-phosphate forms glycogen at an initial rate faster than that obtained with glucose 6-phosphate and UDP-glucose. After 5min. the rates from glucose monophosphates are considerably slower. 2,4-Dinitrophenol decreases glycogen synthesis from both glucose monophosphates, whereas arsenate and EDTA increase glycogen synthesis from glucose 1-phosphate and inhibit the reaction from glucose 6-phosphate, galactose and galactose 1-phosphate. Mitochondria-free pigeon liver cytoplasmic fraction forms less glycogen from glucose monophosphates than does the whole homogenate. 2-Deoxyglucose 6-phosphate inhibits glycogen synthesis from glucose monophosphates. Glycogen formation from UDP-glucose is relatively unaffected by dinitrophenol, by arsenate, by EDTA, by 2-deoxyglucose 6-phosphate and by the removal of mitochondria from the whole homogenate.

Estimates of uridine diphosphate glucose in human erythrocytes

1992 ◽  
Vol 15 (6) ◽  
pp. 940-941 ◽  
Author(s):  
H. N. Kirkman
Keyword(s):  
Human Erythrocytes ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose

scholarly journals The activity of uridine diphosphate glucose–d-fructose 6-phosphate 2-glucosyltransferase in leaves

1967 ◽  
Vol 105 (3) ◽  
pp. 943-946 ◽  
Author(s):  
J. S. Hawker
Keyword(s):  
Sugar Cane ◽  
Sucrose Synthesis ◽  
Uridine Diphosphate ◽  
Leaf Extracts ◽  
Uridine Diphosphate Glucose ◽  
Rate Of Photosynthesis ◽  
Diphosphate Glucose ◽  
Sucrose Phosphate Synthetase ◽  
High Sucrose ◽  
Sucrose Phosphate

1. By using EDTA in reaction mixtures it was possible to determine the activity of sucrose phosphate synthetase in freshly prepared leaf extracts without the complications caused by sucrose phosphatase. 2. EDTA was found also to increase the activity of sucrose phosphate synthetase by as much as 100%. 3. High sucrose phosphate synthetase activities were found in leaf preparations in which sucrose phosphatase was inhibited by EDTA. By contrast with previous reports, the activities were sufficient to allow sucrose synthesis in leaves during photosynthesis to occur via sucrose phosphate. 4. Sugar-cane plants having different rates of photosynthesis also had different activities of sucrose phosphate synthetase in their leaves. 5. It is suggested that the activity of sucrose phosphate synthetase in leaves may play a role in the control of the rate of photosynthesis.

Time-dependent increase in uridine diphosphate glucose pyrophosphorylase activity in vitro

1969 ◽  
Vol 178 (3) ◽  
pp. 491-498 ◽  
Author(s):  
D.K. Fitzgerald ◽  
S. Chen ◽  
K.E. Ebner
Keyword(s):  
Time Dependent ◽  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose

scholarly journals Some Properties of the Uridine Diphosphate Glucose Pyrophosphorylase.

1957 ◽  
Vol 11 ◽  
pp. 1079-1079 ◽  
Author(s):  
Agnete Munch-Petersen ◽  
O. Walaas ◽  
E. Walaas ◽  
K. E. Almin ◽  
Arne Magnéli ◽  
...  
Keyword(s):  
Uridine Diphosphate ◽  
Uridine Diphosphate Glucose ◽  
Diphosphate Glucose
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