《植物生理学报》 2012, 48(4): 403-407
通信作者:刘恒;E-mail: xfli@lzu.edu.cn;Tel: 0931-8915601
摘 要:
为更好的研究生长素类化合物及6-苯甲基腺嘌呤(6-BA)对细胞分裂和细胞伸长的影响, 以拟南芥主根为材料, 从组织学水平比较了IAA、NAA、2,4-D和6-BA对拟南芥主根分生区和伸长区的抑制效应, 发现IAA和NAA效果是相似的, 可以通过促进细胞分裂显著增加根分生区长度, 但也显著缩短主根伸长区长度, 而2,4-D和6-BA则通过抑制细胞分裂来显著缩短根分生区长度, 同时也显著缩短根伸长区的长度。关键词:生长素类化合物; 6-苯甲基腺嘌呤; 拟南芥; 根分生区; 根伸长区
收稿:2012-02-22 修定:2012-03-08
资助:国家自然科学基金(30970234)、教育部博士点基金(200807300014)和兰州大学中央高校基本科研业务费专项资金(lzujbky-2010-60)。
Corresponding author: LIU Heng; E-mail: xfli@lzu.edu.cn; Tel: 0931-8915601
Abstract:
To study the effect of auxins and 6-BA on cell divison and cell elongation, we compared the inhibit effects of IAA, NAA, 2,4-D and 6-BA on Arabidopsis main root development. We found that IAA and NAA has similar effects on root development that can increases the length of root meristem zone through promotes cell division and decreases the length of root elongation zone, but 2,4-D and 6-BA decreases both the length of root meristem zone through inhibit cell division and root elongation zone.Key words: auxins; 6-benzyladenine; Arabidopsis; root meristem zone; root elongation zone
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