摘要
以番茄为试材,采用悬空气法,探讨番茄根边缘细胞的生物学特性及铝对其活性的影响。结果表明,第1个番茄边缘细胞几乎与初生根同时出现,当根长到10mm时,番茄边缘细胞达最大值(893个)。边缘细胞的活性(成活率)一直维持在93%以上。PME活性随着根的伸长有所降低。铝对番茄边缘细胞产生明显毒害,随着铝浓度和处理时间的增加,边缘细胞的活性显著降低。
The biological characteristics of border cell of tomato （Lycopersicon esculentum） and theeffect of aluminum on its viability were studied by aeroponic culture. The results showed that thefirst border cell almost occurred synchronously with primary root tip emergence and the numbers ofborder cells reached its maximum （893） when the root was 10mm long. The viability of border cellmaintained over 93% and increased a little with the elongation of root. However, PME （PectinMethylesterase） activities decreased slightly with the elongation of root. With the increase ofconcentration or time of aluminum treatment, viability of border cell decreased significantly. Theresults also indicated that aluminum was harmful to border cell of tomato
出处
《亚热带植物科学》
2006年第2期1-4,共4页
Subtropical Plant Science
基金
国家自然科学基金(30540056)
浙江省自然科学基金(304185
504135)资助
关键词
边缘细胞
生物学特性
铝毒
番茄
border cell
biological characteristics
aluminum toxicity
tomato
