ZHAO Shuling,WANG Han,WANG Rangjun,et al.Effect of Zn2+ Stress on Growth and Physiological and Biochemical Characteristics of Brassica oleracea L.var.botrytis L.[J].Northern Horticulture,2016,40(18):1-5.[doi:10.11937/bfyy.201618001]
重金属Zn2+对花椰菜种子的萌发及幼苗生理特性的影响
- Title:
- Effect of Zn2+ Stress on Growth and Physiological and Biochemical Characteristics of Brassica oleracea L.var.botrytis L.
- Keywords:
- Zn2+ stress; Brassica oleracea L.var.botrytis L.; chlorophyll content; physiological and biochemistry characteristics
- 文献标志码:
- A
- 摘要:
- 以花椰菜（Brassica oleracea L. var. botrytis L.）种子为试材，研究了在锌胁迫下，对其种子萌发及幼苗生理生化的影响。结果表明：不同浓度Zn2+（125、250、500、1000 mg?L-1）处理花椰菜种子后，对该植物种子的萌发率影响较小；幼苗受不同浓度Zn2+胁迫作用后，根的生长发育影响较大，叶片内叶绿素含量和类胡萝卜素含量呈下降趋势；超氧化物歧化酶（SOD）活性及过氧化物酶（POD）活性呈先降后升的趋势；丙二醛（MDA）含量和脯氨酸（Pro）含量呈上升趋势；根活力呈下降趋势。
- Abstract:
- With Brassica oleracea L.var.botrytis L.as test material，the physiological and biochemical response of Zn2+ stress to its seeds were studied.The results showed that Zn2+ stress exhibited high inhibitory effects on Brassica oleracea L.var.botrytis L.The plant seeds germination rate decreased with the increase of Zn2+ concentration，but there was no obvious change.With the increase of Zn2+concentration，the root length，contents of chlorophyll decreased obviously.The activities of SOD and POD tended to firstly decrease then increased with the increase of Zn2+concentration and the contents of MDA and Pro tended to increase.The root vigor decreased gradually with the increasing of Zn2+concentration.
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备注/Memo
第一作者简介：赵淑玲（1968-），女，甘肃康县人，硕士，副教授，研究方向为植物生理学。E-mail:1109385865@qq.com.基金项目：陇南师专2014年校级科研资助项目（2014LSZK02008）；2015年甘肃省委组织部陇原青年创新人才扶持计划资助项目（2015-13）；甘肃省教育厅高等学校科研资助项目（2015B-147）。