A Physical and Chemical Investigation of the Scales produced by the Golgi Apparatus within and found on the surface of the cells ofChrysochromulina chitonParke et Manton

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Abstract
The structure of the scales of Chrysochromulina chiton Parke et Manton has been investigated by physical and chemical means. The morphology of the scales in this investigation differed from those originally described, because of different cultural conditions. Ultrasonic disruption has confirmed that the scales are of fibrillar construction, the fibrils of the centres being arranged radially and those of the rims winding round the circumference several times. Chemical investigation has shown that the scales are of a carbohydrate nature, the two major residues appearing to be ribose and galactose. Glucose did not appear to be present to any marked axtent. The Polysaccharide of which the scales are composed has been shown by X-ray analysis to possess a large unit cell, suggesting either a crookled chain of residues or a chain of mixed sugars. The results are discussed in realtion to the functioning of the Golgi apparatus in plant cells.

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