[Planting area estimation of Paeonia ostii based on RS--by case study in Dangshan of Anhui province].

Moutan Cortex is one kind of famous medicinal materials. The dry root bark of Paeonia ostii which is a genuine medicinal material produced in Tongling,Anhui province,and later was introduced to Heze,Shandong province and Bozhou,Anhui province.Dangshan county is located at the northern end of Anhui province and adjacent to Shandong province. Its medicinal seedlings were came from Heze,Shandong province. At present,there is a lack of scientific investigation on the planting area of P. ostii in north China plain. On the basis of field investigation and remote sensing technology,through the data source provided by the remote sensing image of " Resources 3"( ZY-3),combined with the biological characteristics of P. ostii,the planting area of P. ostii in Dangshan county was extracted by field investigation and supervisory classification. The supervise classification method with the highest interpretation accuracy so far,the overall accuracy was 97. 81%,Kappa coefficient 0. 96. The results showed that the remote sensing classification method based on the maximum likelihood classification could extract P. ostii plots in the study area effectively. This study provides a scientific basis for the protection and rational utilization of traditional Chinese medicine resources,the development policy of traditional Chinese medicine industry and the long-term development plan in Dangshan county,and provides technical support for the poverty alleviation of traditional Chinese medicine industry in Dangshan county. It provides scientific reference for the application of remote sensing technology to investigate the planting area of P. ostii in in north China plain.

Determination of the species status of Fallopia multiflora, Fallopia multiflora var. angulata and Fallopia multiflora var. ciliinervis based on morphology, molecular phylogeny, and chemical analysis.

Relationships among Fallopia multiflora (Thunb.) Haraldson., F. multiflora var. angulata (S. Y. Liu) H. J. Yan, Z. J. Fang & Shi Xiao Yu., and F. multiflora var. ciliinervis (Nakai) Yonekura & H. Ohashi. were determined based on macroscopic and microscopic morphology, molecular phylogeny, and chemical analysis. The macroscopic and microscopic morphologies of root tubers or rhizomes, stems, and leaves were compared among the three taxa. The content of 11 chemical components (catechin, polydatin, stilbene glucoside, emodin, emodin-8-O-ß-D-glucopyranoside, rhein, chrysophanol, aloe-emodin, quercetin, physcion, and resveratrol) in the three taxa was determined by HPLC, and the chemical diversity was further evaluated by principal component and hierarchical cluster analyses. Molecular phylogenies were mapped using two chloroplast markers (matK and the psbA-trnH intergenic region) and a nuclear ribosomal marker [internal transcribed spacer 2 (ITS2) region]. Analyses of macroscopic and microscopic morphological characteristics revealed that the subterranean organs of F. multiflora and F. multiflora var. angulata are root tubers, whereas those of F. multiflora var. ciliinervis are rhizomes. In the phylogenetic trees, F. multiflora and F. multiflora var. angulata were clustered into a clade based on the combine matK + psbA-trnH sequence, with neighbour-joining, maximum likelihood, and Bayesian inference bootstrap support values of 99, 85, and 0.99, respectively. In addition, there were obvious differences in the chemical compositions of F. multiflora, F. multiflora var. angulata and F. multiflora var. ciliinervis. The root tubers of F. multiflora contain higher levels of stilbene glucoside and catechin, but lower levels of polydatin and anthraquinone compounds. In contrast to F. multiflora, the rhizomes of F. multiflora var. ciliinervis contain higher levels of polydatin and anthraquinone compounds, but lack stilbene glucoside. The content of all 11 assessed components was lower in F. multiflora var. angulata than in F. multiflora and F. multiflora var. cillinervis. Principal component and hierarchical cluster analyses revealed that F. multiflora and F. multiflora var. angulata individuals were clustered into a single clade, whereas F. multiflora var. ciliinervis individuals were clustered into a single clade separate from that containing F. multiflora and F. multiflora var. angulata individuals. On the basis of the results of our morphological, molecular phylogeny, and chemical analyses, we tentatively conclude that F. multiflora var. ciliinervis is an independent species, whereas F. multiflora var. angulata should be considered as a variety of F. multiflora.

[Diagnosis and treatment of schistosomiasis japonica-concensuses among ex- perts in Hunan, Hubei and Jiangxi provinces].

In order to further standardize the diagnosis and treatment of schistosomiasis japonica in China, on the basis of evidence-based medicine, the experts on schistosomiasis control from Hunan, Hubei and Jiangxi provinces summarized their consensuses on the disease after the discussion on the current situation and progress of clinical diagnosis and treatment of schistosomiasis in China, with the reference to the Diagnostic Criteria for Schistosomiasis (WS261-2006), which aimed to establish the therapeutic standards or guideline of schistosomiasis in China.