摘要
以甘草幼苗为材料,采用营养液培养的方法,用0、8×10-6、4×10-5、2×10-4、10-3 mmol/L 5个不同浓度的加镧营养液培养甘草幼苗,通过比较生长量、药用成分积累量以及MDA质量摩尔浓度、游离氨基酸、可溶性蛋白质质量分数等研究不同浓度镧对甘草产量及品质的影响。结果表明,不同处理中,10-3 mmol/L镧浓度过大,导致植株死亡;8×10-6 mmol/L能有效促进甘草的生长,地上地下的产量分别高出不加镧处理的70.3%和46.6%,提高整株甘草黄酮和甘草多糖的积累量;叶片中MDA质量摩尔浓度比不加镧处理降低22.5%,有效地减弱脂质过氧化强度及膜系统的伤害。
Licorice seedlings were cultured in five different concentrations,including 0,8×10-6,4×10-5,2×10-4,and 10-3 mmol/L,of lanthanum（La） solution.The growth,the medical composition accumulation and the molality of MDA,free amino acids,soluble protein were determined to study the effect of different concentrations of La on yield and quality of Licorice.The results showed that,the concentration of La was too high at 10-3mmol/L and led to death,but La concentration of 8×10-6mmol/L effectively promoted the growth of Licorice,which increased the biomass of ground and underground part by 70.3% and 46.6% higher than the control respectively and increased the entire plant accumulation of Licorice flavonoids and Licorice polysaccharide,but the concentration of MDA in leaves was 22.5% lower than the control,which decrease effective weakened lipid peroxidation strength and harmfulness of membrane system.
出处
《西北农业学报》
CAS
CSCD
北大核心
2012年第4期127-130,共4页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家自然科学基金资助项目(30571109)
天津师范大学开发基金资助项目(53LA35)
关键词
甘草
镧
生物量
品质
Licorice
Lanthanum
Biomass
Quality
作者简介
裴文梅，女，在读硕士研究生，从事药用植物营养和肥料研究。E-mail：PPQQ763125@126．com
通讯作者：王景安，男，教授，博士，硕士生导师，主要从事植物营养生理研究。E-mail：jinganwang899@126．com
