以2年生青钱柳(Cyclocarya paliurus)幼苗为材料,通过叶面喷施不同质量浓度的水杨酸、纳米TiO2、稀土硝酸镧、硝普钠溶液,研究其对青钱柳幼苗叶片黄酮和微量元素含量的影响。调控结果表明:水杨酸(200 mg/L)处理对青钱柳叶片中山萘酚、异槲皮苷含量提高效果最佳,分别达到21.199、0.413 mg/g; 而对槲皮素含量的影响最大的是100 mg/L的水杨酸处理,含量可达到6.507 mg/g; 400 mg/L纳米TiO2处理对微量元素Fe含量影响最大,Fe含量可达到1.375 mg/g。
Abstract
The effects of exogenous substances on contents of flavoniods and trace elements in Cyclocarya paliurus leaves of 2-year-old seedlings were investigated by spraying different concentrations of salicylic acid(SA), nanometer titanium dioxide(Nano-TiO2), lanthanum nitrate(LN)and sodium nitroprusside(SNP), respectively. The results showed that 200 mg/L SA has the best effect on increasing the content of isoquercetin and kaempferol in the leaves, and the contents of isoquercetin and kaempferol were 21.199 mg/g and 0.413 mg/g. However, the greatest content of quercetin achieved in the 100 mg/L SA treatment, which was 6.507 mg/g. The highest contents of inorganic ions Fe was obtained in the 400 mg/L Nano-TiO2 treatment, which was 1.375 mg/g.
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基金
收稿日期:2011-09-08 修回日期:2012-03-22 基金项目:国家林业公益性行业科研专项项目(200904046); 江苏省高等学校创新团队科研计划(苏教科[2009]10号); 江苏省“六大人才高峰”资助项目 第一作者:王纪,博士生。*通信作者:方升佐,教授。E-mail:fangsz@njfu.com.cn。引文格式:王纪,张金凤,谢寅峰,等. 外源物质对青钱柳叶片黄酮及微量元素含量的影响[J]. 南京林业大学学报:自然科学版,2012,36(3):49-52.
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