FREEZE-THAW INJURY IS ENHANCED BY POSTTHAW LEACHING IN WATER

被引:0
|
作者
ZHANG, MIN
WILLISON, JHM
XIAO, X
CHEUNG, CH
机构
关键词
BRASSICA RAPA L; 2,3,5-TRIPHENYLTETRAZOLIUM CHLORIDE (TTC); FREEZE-THAW INJURY; LEACHING;
D O I
暂无
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Turnip (Brassica rapa L.) root tissue was exposed to freeze-thaw stresses of -7, -9, -11 and -19 degrees C. The post-thawed tissues were either subjected to leaching in deionized water for 2 h or left at 100% humidity. Tissue survival was then assayed by vital staining using modified 2,3,5-triphenyltetrazolium chloride (TTC) staining in 0.2 M phosphate buffer. Tissue survival was significantly lower for leached samples than for non-leached samples. It is concluded that freeze-thaw injury in plant tissues is enhanced by post-thaw leaching in water. The 0.05 M phosphate buffer commonly used for TTC staining also damaged freeze-thaw injured tissue.
引用
收藏
页码:357 / 358
页数:2
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