Observations on the Nature of the Relationship between Cell Division and Carbohydrate Metabolism

Development ◽  
1954 ◽  
Vol 2 (1) ◽  
pp. 26-37
Author(s):  
R. J. O'Connor
Keyword(s):  
Cell Division ◽  
Carbohydrate Metabolism ◽  
Adult Mouse ◽  
Tricarboxylic Acid Cycle ◽  
Relative Importance ◽  
Low Oxygen ◽  
Cultured Fibroblasts ◽  
Oxygen Tensions ◽  
Relationship Of ◽  
The Relationship

Although there is considerable evidence that carbohydrate metabolism plays an important part in the process of cell division (see Bullough, 1952), conclusions have differed regarding the relative importance of glycolysis and catabolism involving respiration. In the adult mouse epidermis Bullough & Johnson (1951) found that cell division was dependent upon the respiratory oxidation of pyruvate by the tricarboxylic acid cycle. On the other hand, Pomerat & Willmer (1939) showed that, in tissue culture, agents that inhibited respiration had little immediate effect on cell division, while Laser (1933) found that growth of cultured fibroblasts could continue when respiration was greatly diminished by low oxygen tensions. Further, Warburg (1930) concluded that cell growth is associated with glycolysis. A similar difference in the relationship of mitotic activity to the respiratory and glycolytic forms of carbohydrate metabolism was indicated by changes occurring in the midbrain and the red-blood cells of the chicken embryo during embryonic development.

THE RELATIONSHIP OF PHOSPHATE AND CARBOHYDRATE METABOLISM

1924 ◽  
Vol 70 (2) ◽  
pp. 333-343 ◽  
Author(s):  
Frank N. Allan ◽  
B. R. Dickson ◽  
J. Markowitz
Keyword(s):  
Carbohydrate Metabolism ◽  
Relationship Of ◽  
The Relationship

The Effect of two different protein sources in the diet upon the incidence and prevalance of lameness in dairy cattle

1989 ◽  
Vol 1989 ◽  
pp. 66-66
Author(s):  
D N Logue ◽  
A Lawson ◽  
D J Roberts ◽  
E A Hunter
Keyword(s):  
Dairy Cattle ◽  
Crude Protein ◽  
Economic Consequences ◽  
Relative Importance ◽  
The West ◽  
Significant Difference ◽  
Series Of Experiments ◽  
Relationship Of ◽  
The Relationship ◽  
Locomotion Score

The importance of lameness in dairy cattle in UK in terms of its economic consequences and welfare considerations is well documented (Russel and others, 1982). While such epidemiological work has identified factors of importance in the aetiology of the various conditions associated with lameness it has been less successful in apportioning their relative importance, particularly for those conditions affecting the hoof. A series of experiments has been conducted at the West of Scotland College over the period 1983 to 1989 mainly investigating the relationship of nutrition and lameness. In one of these Manson and Leaver (1988) found a significant difference in the prevalence of lameness between two groups of cattle fed complete diets containing either 16.1 or 19.8% crude protein. They also found a significant increase in mean locomotion score (LS) and commented that further studies were needed to understand the dietary processes by which the hoof of the cow was predisposed to such problems.The objective of this experiment was to investigate the influence of the type of protein source in the concentrate upon the locomotion of the cows, the incidence and prevalence of lameness and finally on hoof hardness, shape, growth and wear.

scholarly journals The Relationship of Phosphates to Carbohydrate Metabolism

1924 ◽  
Vol 18 (5) ◽  
pp. 1170-1184 ◽  
Author(s):  
Sahib Singh Sokhey ◽  
Frank Nathaniel Allan
Keyword(s):  
Carbohydrate Metabolism ◽  
Relationship Of ◽  
The Relationship

scholarly journals Cell Division in the Formation of the Stomatal Complex of the Young Leaves of Wheat

1966 ◽  
Vol 1 (1) ◽  
pp. 121-128
Author(s):  
J. D. PICKETT-HEAPS ◽  
D. H. NORTHCOTE
Keyword(s):  
Cell Division ◽  
Mother Cell ◽  
Cell Plate ◽  
Stomatal Complex ◽  
Guard Mother Cell ◽  
Young Leaves ◽  
Subsidiary Cells ◽  
Relationship Of ◽  
The Relationship ◽  
Characteristic Manner

During the formation of stomata in the young leaves of wheat the cells divide in a characteristic manner; two of the cell divisions are asymmetrical and produce cells of unequal sizes. A study of the fine structure of the cells during mitosis has shown that a band of microtubules appears at each preprophase stage. This band, although it is not present in the subsequent stages of mitosis, indicates the location on the wall of the mother cell where the cell plate will join it at the final division of the cytoplasm at telophase. Thus the future plane of cell division is indicated by these microtubules at preprophase. Microtubules are also found at the growing edge of the cell plate and appear to function in directing the vesicles which are brought up to extend the plate. The cell plate which is formed to cut off the subsidiary cells on either side of the guard mother cell is curved, and the microtubules present in conjunction with this plate during its formation could function to align and hold it on the required position. The relationship of the guard mother cell to the divisions of the adjacent epidermal cells which form the subsidiary cells is discussed, and related to general problems of growth and differentiation.

The Respiratory Physiology of the Marine Nematodes Enoplus Brevis (Bastian) and E. Communis (Bastian)

1973 ◽  
Vol 59 (1) ◽  
pp. 255-266
Author(s):  
H. J. ATKINSON
Keyword(s):  
Oxygen Consumption ◽  
Body Size ◽  
Oxygen Tension ◽  
Dry Weight ◽  
Respiratory Physiology ◽  
Rate Of Oxygen Consumption ◽  
Oxygen Tensions ◽  
The Difference ◽  
Relationship Of ◽  
The Relationship

1. The rate of oxygen consumption of individual males of Enoplus brevis and E. communis was measured at 15 °C and at each of four oxygen tensions, 135, 75, 35, and 12 Torr, after at least 12 h experience of these conditions. 2. It was clearly demonstrated that the level of oxygen consumption of both species was reduced by each lowering of the imposed oxygen tension. 3. In all cases the oxygen consumption of each species fell with increasing body size. On a unit dry-weight basis the oxygen consumption of E. brevis is greater than that of the larger E. communis, but after allowing for the difference of body size the two species have more or less similar oxygen uptakes at all oxygen tensions. 4. In E. brevis oxygen tension influenced the relationship of body size and metabolism, the slope relating oxygen consumption and body weight becomes steeper with decreasing oxygen tension. This effect was not shown by E. communis. 5. Some general factors influencing the availability of oxygen to nematodes are considered.

scholarly journals THE RELATIONSHIP OF CILIA WITH CELL DIVISION AND DIFFERENTIATION

1971 ◽  
Vol 49 (1) ◽  
pp. 226-229 ◽  
Author(s):  
Virginia G. Fonte ◽  
Robert L. Searls ◽  
S. Robert Hilfer
Keyword(s):  
Cell Division ◽  
Relationship Of ◽  
The Relationship
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