《植物生理学报》 2009, 45(7): 673-676
通信作者:于锡宏;E-mail: yxh100@sohu.com;Tel: 0451-55190300
摘 要:
甘蓝早熟品种‘8398’ 长至6片真叶和中熟品种‘京丰’长至7片真叶时进行绿体春化处理, 前者处理18 d和后者处理23 d 时用37 ℃高温进行春化逆转后检测植株体内核酸的结果表明, 核酸、DNA和RNA含量以及RNA/DNA比值显著下降, 而正常春化的植株则均呈缓慢上升趋势。关键词:甘蓝; 春化逆转; 核酸代谢
收稿:2009-04-13 修定:2009-05-21
资助:东北农业大学创新团队课题(CXT002 -2-2)
Corresponding author: YU Xi-Hong; E-mail: yxh100@sohu.com; Tel: 0451-55190300
Abstract:
After vernalization ‘8398’ cabbage plants with 6 true leaves and ‘jingfeng’ cabbage plants with 7 true leaves for 18 d and 23 d, respectively, devernalization were treated at high temperature of 37 ℃ in order to explore the effects on nucleic acid content in cabbage. The results suggested that cabbage plants had the nucleic acid concentration, RNA content, DNA content and RNA/DNA ratio decreased dramatically in response to high temperature while the control had a modest increase under vernalization period.Key words: cabbage; devernalization; metabolism of nucleic acid
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