旋覆花对土壤含水量的生理生化响应
毕业论文关键词：旋覆花；土壤含水量；生理生化；影响
Physiological and Biochemical Responses of Inula japonica Thunb. to Soil Moisture
Abstract：In this experiment, five different soil water gradients were set up by using the method of pot experiment, and the physiological and biochemical indexes of Inula japonica Thunb. were measured. The changes of physiological and biochemical indexes of Inula japonica Thunb.were studied under different water treatments. Explore the optimum soil water content of Inula japonica Thunb. .The results showed that the content of photosynthetic pigment was the highest and the content of malondialdehyde (MDA), soluble protein and ascorbic acid (ASA) was the lowest in the treatment of moderate water treatment,The activities of peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), MDA and proline (Pro) were the highest in severe drought treatment.With the prolonging of the treatment time, the content of soluble sugar and Pro decreased first and then decreased.Conclusion: When the soil water content is less than 50% of the field capacity, it is not conducive to the growth of Inula japonica Thunb. . The optimum water content of Inula japonica Thunb. should be 60% -65% of the field water holding capacity.
Key words: Inula japonica Thunb.；Soil moisture content；physiology and biochemistry；influences
目录
摘要 1
关键词 1
Abstract 1
Key words 1
1 材料与试验方法 2
1．1 试验材料 2
1．2 试验设计 2
1．3 实验仪器 2
1．4 实验试剂 2
2 方法 2
2．1 生理生化指标的测定 2
2．2 数据分析 3
3 结果与分析 3
3．1 土壤含水量对旋覆花光合色素含量的影响 3
3．2 土壤含水量对旋覆花叶片可溶性糖含量的影响 3
3．3 土壤含水量对旋覆花叶片可溶性蛋白含量的影响 4
3．4 土壤含水量对旋覆花叶片脯氨酸含量的影响 4
3．5 土壤含水量对旋覆花叶片丙二醛含量的影响 4
3．6 土壤含水量对旋覆花叶片抗坏血酸含量的影响 5
3．7 土壤含水量对旋覆花叶片保护酶的影响 5
4 讨论 6
4．1 土壤含水量对旋覆花光合色素含量的影响 6
4．2 土壤含水量对旋覆花叶片渗透调节物质的影响 6
4．3 土壤含水量对旋覆花膜脂过氧化作用的影响 6
4．4 土壤含水量对旋覆花抗氧化防御体系的影响 7
致谢 7
参考文献： 7
旋覆花对土壤含水量的生理生化响应
旋覆花(Inula japonica Thunb.)是旋覆花属多年生草本植物[1]，是传统中药金沸草的基源植物。全株入药，性温，咸、微苦，归肺、大肠经，具有降气止咳，消痰，止呕等作用，《神农本草经》和《中国本草学》中均有关于旋覆花的记载，古代名方“旋覆代赭汤”一直沿用至今。药理学研究表明，其具有抗氧化、抗肿瘤、抗炎等作用[2-4]，随着对其化学成分和药理研究的深入，在临床上发挥着越来越大的作用。药用旋覆花目前多以野生为主，有关其栽培种植方面的研究较少，尚未见大范围栽培种植。但目前面临着自然生境破坏日益严重和资源开发日益深入的问题，其野生基原植物濒临枯竭，不能满足日益增长的医药开发需求，对其开展人工引种及规范化栽培工作迫在眉睫。