棉纤维的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布

Distribution of Microfibril Spiral Angle of Cotton Fibre and Relative Orientational Index of Cellulose Crystallites in Cotton Plant

用x射线衍射法对棉纤维细胞壁的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布规律进行了研究。结果是:微原纤螺旋角随果枝位和果节位的增加略有增加,相对取向指数随果枝位和果节位的增加略有减小。

The distribution of microfibril spiral angle and relative orientational index of cellulose crystallites in cotton fibre cell walls had been studied by X-ray diffraction analysis. The results indicated that the microfibril spiral angle increased in the upper level fruit branches and the outer fruit nodes. The relative orientational index decreased slowly as the ordinal number of fruit branches increased from below, and decreased slowly as the ordinal number of fruit nodes increased from inside.