| 滇韭的B-染色体及抗逆生理特性研究初探 |
| |
| 引用本文： | 陈小兰,史冬燕,邓国宾,陈善娜.滇韭的B-染色体及抗逆生理特性研究初探[J].西北植物学报,2005,25(6):1238-1241. |
| |
| 作者姓名： | 陈小兰 史冬燕 邓国宾 陈善娜 |
| |
| 作者单位： | 1. 云南大学,生物技术系,昆明,650091
2. 云南大学,生物技术系,昆明,650091;山东荷泽学院,生物系,山东荷泽,274015 |
| |
| 基金项目： | 云南大学校级科研项目 2 0 0 2 Q0 0 9SM，云南省教育厅科学研究基金项目 O2 ZY0 0 3 |
| |
| 摘 要： | 对B-染色体在滇韭二倍体和四倍体中的分布进行了调查，并测定了不同海拔高度二倍体植株的抗氧化酶系活力、丙二醛和脯氨酸的含量，探索B-染色体对滇韭形态、育性及抗逆性的影响。结果表明：B-染色体在二倍体和四倍体滇韭中的分布和数量存在较大差异；B-染色体的存在对二倍体滇韭的形态和育性具有明显影响；SOD酶活及MDA含量与海拔高度呈一定的相关性。
|
| 关 键 词： | 滇韭 B-染色体 二倍体 四倍体 抗逆性 |
| 文章编号： | 1000-4025(2005)06-1238-04 |
A Preliminary Study of B-chromosome and Physiological Resistance Characteristics of Allium mairei |
| |
| CHEN Xiao-lan,SHI Dong-yan,DENG Guo-bin,CHEN Shan-na.A Preliminary Study of B-chromosome and Physiological Resistance Characteristics of Allium mairei[J].Acta Botanica Boreali-Occidentalia Sinica,2005,25(6):1238-1241. |
| |
| Authors: | CHEN Xiao-lan SHI Dong-yan DENG Guo-bin CHEN Shan-na |
| |
| Institution: | CHEN Xiao-lan 1,SHI Dong-yan 1,2,DENG Guo-bin 1,CHEN Shan-na 1* |
| |
| Abstract: | The distribution of B-chromosome between Allium mairei diploids and tetraploids were investigated,and the activities of oxidation-resisting enzymes and the contents of malondialdebyde (MDA) and proline in the diploids at different altitudes were determined to examine the effects of B-chromosome of Allium mairei on its morphology,fertilitly and resistance.The results showed that Allium mairei diploids and tetraploids remarkably differed in their B-chromosome distribution and quantity;the incidence of B-chromosome obviously affected the morphology and fertility of Allium mairei;SOD activity and MDA contents appeared correlaated with the altitudes abouve sea level to some extent. |
| |
| Keywords: | Allium mairei B-chromosome diploid tetreploid resistance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北植物学报》浏览原始摘要信息 |
| 点击此处可从《西北植物学报》下载免费的PDF全文 |
