Effects Of Growth Simulation Between Root And Stem On The Content Of Functional Components In Bark Of Eucommia Ulmoides And Magnolia Officinalis

The study focused on Eucommia ulmoides and Magnolia officinalis.The main medicinal parts bark of Eucommia ulmoides is stem,and its main medicinal component is pinoresinol diglucoside(PDG).The main medicinal parts bark of Magnolia officinalis are root,stem and leader branch,and its main medicinal component is Magnolol and Honokiol(MN and HN).To explore the effects of different growth simulation(revealed the root bark,covered the stem with black PE membrance,covered the stem with soil,revealed the root bark and covered the stem with soil,covered the stem with black PE membrance and soil)on the composition and distribution of the index components and the distribution of different parts(the barks of root,rhizome,stem,leader branch,lateral branch)in different harvest times,by growth simulation in Eucommia ulmoides and Magnolia officinalis.In order to supplement the medicinal plant parts of the chinese medicinal plants by the regulation mechanism,to provided theoretical basis for finding the regulation target and regulatory period for the regulation mechanism in the future,and to improved the content of the original medicinal part.The main research methods and results are as follows:(1)Results 12 months(357d)after treatmenting,the PDG of bark in revealed the root group was 606.77% in blank group and 161.08% in control.The PDG of bark in covered the stem with black PE membrance group was 111.96% in blank group and 114.38% in control group.The PDG of bark in covered the stem with soil group was 154.67% in blank group and 144.36% in control group.The study found that PDG can be improved by covered the stem with black PE membrance,covered the stem with soil and PDG can be reduced by two kinds treatment that revealed the root bark and covered the stem with soil,covered the stem with black PE membrance and soil(p<0.01).(2)The study found that PDG content distribution is different in the different harvest times and parts,and the growth simulation treatment will affect the distribution and synthesis of PDG and change the original accumulation site and period.And different growth simulation treatment can increase the PDG content other parts besides stem in Eucommia ulmoides,its provides the possibility for increase efficiency of Eucommia ulmoides utilization.(3)Results 12 months(357d)after treatmenting,the total content(MN and HN)of bark in revealed the root group was 177.93% in blank group and 116.78% in control.The total content(MN and HN)of bark in covered the stem with black PE membrance group was 127.46% in blank group and 139.80% in control group.The total content(MN and HN)of bark in covered the stem with soil group was 194.29% in blank group and 163.13% in control group.The study found that the total content(MN and HN)can be improved by revealed the root bark,covered the stem with black PE membrance,covered the stem with soil and the total content(MN and HN)can be improved by two kinds treatment that revealed the root bark and covered the stem with soil,covered the stem with black PE membrance and soil(p<0.01).(4)The study found that the total content(MN and HN)distribution is different in the different harvest times and parts,and the growth simulation treatment will affect the distribution and synthesis of the total content(MN and HN)and change the original accumulation site and period.And different growth simulation treatment can increase the total content(MN and HN)content other parts besides original medicinal parts in Magnolia officinalis,its provides the possibility for increase efficiency of Magnolia officinalis utilization.