Applications of Nitrogen Dioxide Treatment to the Microscopy of Fiber Cell Wall Structure

Rollins, Mary L.

doi:10.1177/004051754501500301

Cited by 23 publications

(5 citation statements)

References 21 publications

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“…The helical-tape structure of the winding in cotton strongly resembles a lignin formation demonstrated by Mitchell in wood fibers (16). Nitrogen dioxide-oxidized cotton swollen in alkali also shows this formation with striking clarity (26).…”

Section: The Windingsupporting

confidence: 61%

“…The use of such swelling techniques is illustrated in Figure 2, a photomicrograph of a mature cotton fiber swollen in dilute cuprammonium hydroxide after treatment with gaseous nitrogen dioxide for 1 hour (26). Before swelling, the fiber was stained with safranin, a protein stain, and with methylene blue, which colors both protein and pectic substances.…”

Section: Microscopical Examination Of Whole Fiber Structurementioning

confidence: 99%

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Morphology and Chemical Composition of Certain Components of Cotton Fiber Cell Wall

Tripp¹,

Rollins²

1952

Anal. Chem.

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Section: The Windingsupporting

confidence: 61%

Section: Microscopical Examination Of Whole Fiber Structurementioning

confidence: 99%

Morphology and Chemical Composition of Certain Components of Cotton Fiber Cell Wall

Tripp¹,

Rollins²

1952

Anal. Chem.

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“…It has not yet been possible to obtain sufficient material for hydrolysis and chromatography but so far the With this picture of the winding layer clearly in mind a brief look is given its behavior in the swelling of fibers. Figure 10 shows the pattern of the winding in a cotton fiber after oxidation in nitrogen dioxide gas (43) and swollen only slightly in alkali. The primary wall is still present on the fiber but the effect of the winding on it is in evidence and gives the impression of a helical tape about the fiber.…”

Section: Winding Layermentioning

confidence: 99%

Some Aspects of Microscopy in Cellulose Research

Rollins¹

1954

Anal. Chem.

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“…* The term &dquo;helical&dquo; is used ion a descriptive sense without rigid geometrical implications. The most recent suggestion that the fibrils form a network or reticular pattern in the primary wall [12,15,16,23] Figure 1, the primary wall being elastic. On the basis of the original assumptions all these samples have the same potential swelling pressure originally.…”

mentioning

confidence: 99%

The Possible Contribution of Shape to the Swelling and Moisture-sorption Behavior of Cotton Fiber at the Saturation Point

Skau

1946

Textile Research Journal

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11'10ISTURE sorption and swelling of cotton fiber are complex phenomena depending in degree upon a considerable number of more or less independent variables which do not lend themselves to control.In the following discussion it is attempted to analyze the effect of a change in one of these variablesnamely, the shape-on the moisture behavior of the cotton fiber. Although some quantitative relationships are derived, it must be kept in mind that, because of the assumptions necessary and the number and the complexity of the variables involved, the conclusions drawn can at best be considered only qualitative in nature in specific random cases. They should, however, serve to show in a general way the effect on swelling and related phenomena contributed by fiber shape.The extent to which a cotton fiber can swell when immersed in water may in some cases be restricted by the cuticle or primary wall [3,5,6,7,8,11,20,29], which behaves like a membrane around the outside of the fiber. It has been suggested that a mature fiber cannot swell beyond the maximum volume it had as a living, unshrunken cell in the green boll [6,20], except with strong swelling agents. Since the change in the length of a fiber on swelling is negligible ( 1 or 2 percent) [9, 10], the change in volume can, as a first approximation, be considered proportional to the change in its cross-sectional area.Swelling thus presumably involves a change in shape of the fiber so as to cause an increase in the area of the cross section with little or no change in the perimeter. It can be shown mathematically that when the primary wall is distended to its full capacity-that is, its maximum volume-the cross section of the fiber would be circular. A very flatshaped (immature) fiber with a given perimeter would have a small cross-sectional area and would theoretically swell to many times its original volume before reaching the maximum area. On the other hand, a nearly round fiber could swell very little before reaching this limit, while a perfectly round fiber could not swell at all unless the perimeter of the cross section increased-that is, unless the primary wall stretched.For the purpose of discussion the first assumption necessary is that the cotton fiber is uniform in crosssectional area both throughout its length and, for any given sample, from fiber to fiber. The effect of the lumen or of any possible open spaces inside the fiber has been ignored. It has also been assumed that the cellulose within the fiber wall is identical in all cases and that it behaves like a fluid * to the extent

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Applications of Nitrogen Dioxide Treatment to the Microscopy of Fiber Cell Wall Structure

Cited by 23 publications

References 21 publications

Morphology and Chemical Composition of Certain Components of Cotton Fiber Cell Wall

Morphology and Chemical Composition of Certain Components of Cotton Fiber Cell Wall

Some Aspects of Microscopy in Cellulose Research

The Possible Contribution of Shape to the Swelling and Moisture-sorption Behavior of Cotton Fiber at the Saturation Point

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