Complete Chloroplast Genome Analysis of Two Important Medicinal Species: and .

Most species are valued as foods, ornamental plants, or plants with medicinal properties. However, morphological characteristics and commonly used DNA barcode fragments are not sufficient for accurately identifying species. Difficulties in species identification have led to confusion in the sale and use of for medicinal use.

[DNA barcoding identification of original plants of a rare medicinal material Resina Draconis and related Dracaena species].

Resina Draconis, a rare and precious traditional medicine in China, is known as the "holy medicine for promoting blood circulation". According to the national drug standard, it's derived from the resin extracted from the wood of Dracaena cochinchinensis, a Liliaceae plant. In addition, a variety of Dracaena species all over the world can form red resins, and there is currently no molecular identification method that can efficiently identify the origin of Dracaena medicinal materials.

Transcriptome profiling reveals candidate flavonoid-related genes during formation of dragon's blood from Dracaena cochinchinensis (Lour.) S.C.Chen under conditions of wounding stress.

Ethnopharmacological Relevance: Dragon's Blood (Resina Draconis) is a red resin that has been used in traditional medicine to promote blood circulation, regenerate muscles, reduce swelling and pain, stop bleeding, etc., and its main chemical constituents are flavonoids. Dracaena cochinchinensis (Lour.

[Application and analysis of medicinal plant resources of six major ethnic minorities living in Xishuangbanna].

The study aims at exploring the composition and characteristics of the medicinal plant resources of six major ethnic minorities living in Xishuangbanna, as well as the characteristics of traditional utilization of ethnic medicine, and promote the rational protection and inheritance and utilization of ethnic medicine resources and traditional knowledge. Based on the fourth survey of traditional Chinese medicine resources in Xishuangbanna, Yunnan province, through the methods of literature collection, interviewing and field investigation, this paper analyzed the data of the types, medicinal parts and attending diseases of medicinal plant resources of Dai, Hani, Jinuo, Wa, Lahu and Bulang nationalities. The results showed that there were 1 048 medicinal plant resources of the six ethnic minorities, and the medicinal plants were 735, 497, 272, 295, 280 and 49 in the six nationalities, respectively.

Genetic Diversity Assessment of a Chinese Medicinal Endemic Species, Aspidopterys obcordata var. obcordata, by Combined Molecular Marker Methods (ISSR & SRAP).

Aspidopterys obcordata var. obcordata, a medicinal plant endemic to China, is a narrowly distributed species and wild resources are extremely limited. To evaluate the genetic variability and degree of genetic divergence of A.

Identification of medicinal plants within the Apocynaceae family using ITS2 and psbA-trnH barcodes.

To ensure the safety of medications, it is vital to accurately authenticate species of the Apocynaceae family, which is rich in poisonous medicinal plants. We identified Apocynaceae species by using nuclear internal transcribed spacer 2 (ITS2) and psbA-trnH based on experimental data. The identification ability of ITS2 and psbA-trnH was assessed using specific genetic divergence, BLAST1, and neighbor-joining trees.

Effects of genetic variation and environmental factors on bergenin in Rodgersia sambucifolia Hemsl.

Ethnopharmacological Relevance: Bergenin is a well-known active compound that exhibits antioxidant, antiarrhythmic, hepatoprotective, and anti-inflammatory activities. However, the resource reserve of Rodgersia sambucifolia, one of the main raw materials for extracting bergenin, have sharply declined, and the bergenin content in different germplasms differs vastly, resulting in a serious shortage of the market supply of bergenin.

Aim Of The Study: To investigate the influence of genetic diversity and environmental factors on bergenin content in Rodgersia sambucifolia.

The effects of genetic variation and environmental factors on rhynchophylline and isorhynchophylline in Uncaria macrophylla Wall. from different populations in China.

Uncaria macrophylla Wall. is an important Chinese medicinal herb. Rhynchophylline (RIN) and isorhynchophylline (IRN) are its major active compounds.

[Research advance of functional plant pharmaceutical cycloartenol about pharmacological and physiological activity].

Cycloartenol, a phytosterol compound, also one of the key precusor substances for biosynthesis of numerous sterol compounds, has a variety of pharmacological activities such as anti-inflammatory, anti-tumor, antioxidant, antibiosis and anti-alzheimer's disease. Furthermore, cycloartenol also plays an important role in the process of plant growth and development. This article reviewed the research progress on cycloartenol pharmacological activity in domestic and foreign articles, and summarized the effect of cycloartenol and "cycloartenol pathway" on the plant growth and development, laying foundation for the its further study, development and utilization.

[Investigation, collation and research of traditional Dai medicine of China].

In order to find out the composition, characteristics and traditional utilization characteristics of Dai medicine and promote the rational protection, inheritance and utilization of the resources and traditional knowledge of Dai medicine in China, the resources of traditional Dai medicine have been investigated systematically and the traditional knowledge of Dai medicine have been analyzed in the article. We found out that there were altogether 1 077 kinds of traditional Dai medicine in China and among which 272 were the first time recorded in the condition of Dai folk medical uses. There were 1 053 plant medicines which belong to 169 family and 694 genus.

[Microscopic identification of dai medicine alpiniae kwangsiensis rhizoma and its confused species].

Objective: To observe microscopic characteristics of rhizome of Alpinia kwangsiensis, Alpinia platychilus, Alpinia blepharocalyx, and to provide basis for their identification.

Methods: Microscopic identification of root transverse section by paraffin tissue section and free-hand section and powder were carried out to distinguish them.

Results: The microscopic identification can be made by cell structure of epidermis and endodermis, the existence of nonglandular hair, the lignification degree of vascular bundle fiber, the number and existence style of vascular bundle fiber, the number and size of tube, and so on.

[Optimal extraction technology for genistein in Flemingia macrophylla with response surface method].

Objective: To optimize extraction techniques for genistein in Flemingia macrophylla by using response surface method.

Methods: Based on the single factor experiment, extraction temperature, extraction time and solvent ratio served as the response factor while the extraction rate of genistein served as the response value. Based on multiple linear regression and binomial expression, response surface method was employed to optimize the extracting process, and predicative analysis was conducted.