Xyloglucan breakdown during cotton fiber development.
Xyloglucan breakdown during cotton fiber development.
复制标题
棉纤维发育过程中木葡聚糖的分解。
DOI：
10.1078/0176-1617-01066
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发表时间：
2003
影响因子：
4.3
通讯作者：
T. Hoson
中科院分区：
文献类型：
--
作者：
H. Tokumoto;K. Wakabayashi;S. Kamisaka;T. Hoson
棉花（Gossypium herbaceum L.）纤维在开花后约20天几乎线性伸长。纤维细胞壁中木葡聚糖的分子量在伸长期逐渐下降。当纤维的酶活性（天然）细胞壁制剂自溶时，木葡聚糖的分子量降低。这种减少在从快速伸长的纤维获得的壁制备物中最为突出。木葡聚糖降解活性从纤维细胞壁与3 mol/L NaCl，并恢复在纤维伸长的阶段，其中大力的活动是高的。这些结果表明木葡聚糖代谢可能参与了棉纤维伸长的调节。
Cotton (Gossypium herbaceum L.) fibers elongated almost linearly up to about 20 days post anthesis. The molecular mass of xyloglucans in fiber cell walls decreased gradually during the elongation stage. When enzymatically active (native) cell wall preparations of fibers were autolyzed, the molecular mass of xyloglucans decreased. The decrease was most prominent in wall preparations obtained from the rapidly elongating fibers. The xyloglucan-degrading activity was recovered from the fiber cell walls with 3 mol/L NaCl, and the activity was high at the stages in which fibers elongated vigorously. These results suggest the possible involvement of xyloglucan metabolism in the regulation of cotton fiber elongation.