[Temporal and spatial variation of polysaccharides and alcohol-soluble extractives of Polygonatum cyrtonema].

To reveal the variation of polysaccharides and alcohol-soluble extractives of rhizomes Polygonatum cyrtonema from different producing areas,growing years,and harvesting seasons,25 wild samples from the main producing areas( provenances) of China and 6 artificial cultivated samples were collected and detected. The 6-year-old rhizomes of the artificial cultivation were gathered from Qingyuan,Zhejiang every 2 months during 2016 to 2017. Anthrone-sulfuric acid method and hot-dip method were used to determine the contents of polysaccharides and alcohol-soluble extractives respectively.

[Status of Polygonati Rhizome industry and suggestion for its sustainable development].

Field surveys and literatures show that Polygonati Rhizome (Huangjing) was firstly recorded in Shen Nong&s Herbal Classic, and widely used as a medicinal and edible plant. It has a long history of cultivation, and the researches on chemistry have made some progress. The future development is prospected on health market.

[Genetic diversity and genetic relationships of spacies containing extremely aromatic compounds in leaves of Chimonanthus].

Objective: Species containing extremely aromatic compounds in leaves of Chimonanthus was analyzed to evaluate its genetic diversity and genetic relationships.

Method: AFLP molecular marker technique was used in the study, UPGMA cluster analysis was conducted with the software of POPGENE32.

Results: Five hundred and fifty-nine bands were amplified by 10 pairs of primers screened, of which 226 bands were polymorphic, and the percentage of polymorphic bands was 36.

[Variation of phenolic compound contents of Magnolia officinalis at different levels].

Objective: To reveal the mutative discipline of the contents of the phenols in samples from different provenances.

Method: The contents of magnolol and honokiol in samples from the filial generation of Guanxi, Hubei and Zhejiang provinces were determined respectively by HPLC.

Result: There were significant variations between provenances, the contents of honokiol, magnolol and phenols were the highest in samples from Hubei province, those were the lowest in samples from Zhejiang province.