Cu^(2+)、Zn^(2+)胁迫对金盏花种子萌发和幼苗生理特性的影响  

Effects of Cu^(2+) and Zn^(2+) Stress on Seed Germination and Seedling Physiological Characteristics of Calendula officinalis

作　　者：赵永平[1] 朱亚[1] 李花环 苏丽[1] ZHAO Yong-ping ZHU Ya LI Hua-huan SU Li(College of Biological Pharmacy and Food Engineering, Shangluo University, Shangluo 726000, Chin)

机构地区：[1]商洛学院生物医药与食品工程学院,陕西商洛726000

出　　处：《江西农业学报》2017年第5期35-38,共4页Acta Agriculturae Jiangxi

基　　金：国家级大学生创新创业训练项目(201511396711);商洛学院引进人才专项科研启动经费项目(14SKY027)

摘　　要：在室内条件下研究了Cu^(2+)、Zn^(2+)胁迫对金盏花品种"陇菊1号"种子萌发及幼苗生理特性的影响。研究结果表明:低浓度的Cu^(2+)、Zn^(2+)胁迫对金盏花种子萌发具有一定的促进作用,而高浓度的Cu^(2+)、Zn^(2+)胁迫则表现为抑制作用;在不同浓度Cu^(2+)、Zn^(2+)胁迫下,金盏花幼苗的保护酶SOD、POD、CAT活性均呈现先上升后下降的变化趋势;随着Cu^(2+)、Zn^(2+)胁迫浓度的升高,金盏花幼苗的MDA含量逐渐增加。This paper studied the effects of Cn2＋ and Zn2＋ stress on the seed germination and seedling physiological character- istics of Calendula officinalis variety ＂Longju 1＂ under the indoor condition. The results showed that： low concentration of Cu2~ and Zn2~ stress had a certain promoting effect on the seed germination of C. officinalis, while high concentration of Cu2＋and Zn2＋ stress revealed an inhibitory effect; when the concentration of Cu2＋ and Zn2＋ stress increased, the activities of some protective enzymes （SOD, POD and CAT） in C. officinalis seedlings increased first and then decreased, while the MDA content increased gradually.

关 键 词：金盏花 铜 锌 胁迫 种子萌发 生理特性 

分 类 号：S681.7[农业科学—观赏园艺]