ZHANG Ju-ping,JIAO Xin-ju,CUI Wen-peng,et al.Physiological Differences of Different Chinese Cabbage Varieties on Cadmium Stress[J].Northern Horticulture,2013,37(08):9-12.
不同品种小白菜对镉胁迫的生理性差异
- Title:
- Physiological Differences of Different Chinese Cabbage Varieties on Cadmium Stress
- 文章编号:
- 1001-0009(2013)08-0009-04
- 分类号:
- S 634.303.4
- 文献标志码:
- A
- 摘要:
- 以10个小白菜品种为试材，研究了水培条件下5 μmol/L镉胁迫对其生长量及生理指标的影响，探讨镉胁迫下不同品种小白菜对镉的生理生化响应和耐受能力。结果表明：镉胁迫下，10个品种小白菜均生长迟缓、叶片褪绿，其中对“日本华冠”的影响最小；“四季青”、“抗热605”、“日本华冠”、“裕农一号”的MDA含量减少；除“四季青”、“日本华冠”外，其它品种的抗坏血酸含量都有所增加，其中“上海鸡毛菜”增加最多；除“日本华冠”外，其它品种的叶绿素含量都有所降低；“四季青”、“日本华冠”、“上海鸡毛菜”的SOD活性则升高；“四季青”、“平油一号”、“日本华冠”、“上海鸡毛菜”的CAT活性下降；“四季青”、“抗热605”、“日本华冠”、“原种四月慢”、“上海鸡毛菜”、“裕农一号”的脯氨酸含量升高。不同品种的小白菜对镉的生理生化响应不同，其耐受能力也有差异。其中，“四季青”、“日本华冠”、“上海鸡毛菜”对镉的耐受能力较强。
- Abstract:
- Taking ten cultivars of Chinese cabbage as materials，a hydroponic experiment was carried out to study the impact of Cd stress under 5 μmol/L，to exploring the physiological and biochemical responses and cadmium resistance of different Chinese cabbage cultivars.The results showed that the growth of all the ten cultivars of Chinese cabbage were inhibited under Cd stress，of which ‘Huaguan’ was least affected.The MDA content of ‘Sijiqing’，‘Kangre 605’，‘Huaguani’ and ‘Yunong No.1’ decreased.Except for ‘Sijiqing’ and ‘Huaguan’，the content of ascorbic acid increased in other cultivars，in which ‘Shanghaijimaocai’ increased the most.The chlorophyll content reduced in other cultivars，except for ‘Huaguan’.SOD activity increased in ‘Sijiqing’，‘Huaguan’ and ‘Shanghaijimaocai’.CAT activity decreased in ‘Sijiqing’，‘Pingyou No.1’，‘Huaguan’ and ‘Shanghaijimaocai’.The proline content increased in ‘Sijiqing’，‘Kangre 605’，‘Huaguan’，‘Yuanzhongsiyueman’，‘Shanghaijimaocai’ and ‘Yunong No.1’.The physiological and biochemical response and the tolerance to Cd varied with different cultivars of Chinese cabbage.Among them the tolerance of ‘Sijiqing’，‘Huaguan’ and ‘Shanghaijimaocai ’were greater.
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备注/Memo
第一作者简介：张菊平（1968-），女，博士，教授，现主要从事蔬菜栽培育种的教学与科研工作。E-mail：jupingzhang@163.com.