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Gelatinous Fibres in Ash (Fraxinus excelsior L.)

Abstract

TENSION wood in dicotyledonous trees and shrubs is recognized by the presence of gelatinous fibres. These fibres have an inner layer, composed almost entirely of cellulose (the G-layer), which may replace either the S3 or both the S3 and S2 layers of the secondary wall of the fibres. In some instances the G-layer may occur in addition to the S2 and S3 layers of the fibre wall. In transverse sections the G-layer may commonly be seen to have pulled away from the remainder of the wall on one side.

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WHITE, D., ROBARDS, A. Gelatinous Fibres in Ash (Fraxinus excelsior L.). Nature 205, 818 (1965). https://doi.org/10.1038/205818a0

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