Two new triterpenoids and a chromone glycoside, namely, 24-epi-cimigenol-3-one (1), foetinoside (2), cimifugin-4'-O-[6″-feruloyl]-β-D-glucopyranoside (3), together with 18 known compounds, were isolated from the rhizomes of Cimicifuga foetida L. collected in Guizhou Province, China. All of the compounds were identified by spectroscopic methods, as well as chemical methods. In the in vitro cytot...

Five species of Taiwanomyrme Tsuneki, 1993 are reviewed; two of them, T. latisquamula Tu, Lelej et Chen, sp. nov. (China: Guizhou) and T. impressoides Tu, Lelej et Chen, sp. nov. (China: Zhejiang, Fujian, Hunan), are described and illustrated. Smicromyrme taiwanus Tsuneki, 1993 is proposed as a new synonym for Taiwanomyrme friekae (Zavattari, 1913). A key to males and females of Taiwanomyrme an...

Simple sequence repeat techniques were used to identify the genetic diversity of 101 Gossypium arboreum accessions collected from India, Vietnam, and the southwest of China (Guizhou, Guangxi, and Yunnan provinces). Twenty-six pairs of SSR primers produced a total of 103 polymorphic loci with an average of 3.96 polymorphic loci per primer. The average of the effective number of alleles, Nei's ge...

The research is financed by the program for New Century Excellent Talents in University (NCET-06-0811) and the Research Fund for the Doctoral Program of Guizhou College of Finance and Economics (200702). Abstract The problem of bounded-input bounded-output (BIBO) stabilization for discrete-time uncertain system with time delay is investigated. By constructing an augmented Lyapunov function, som...

Descriptions of the flying organs and generic characteristics of the genus Macromotettixoides Zheng, Wei & Jiang are currently imprecise. Macromotettixoides is reviewed and compared with allied genera. A re-description is undertaken and a determination key is provided to Macromotettixoides. Macromotettixoides parvula Zha & Wen, sp. n. from the Guizhou Karst Region, China, is described and illus...

In this study, we describe a new species of salamander, Paramesotriton maolanensis sp. n., from the Maolan National Nature Reserve, Libo County, Guizhou Province, China. The new species is placed in the genus Paramesotriton based on morphological characteristics and molecular data. It differs from all other members of the genus in a number of morphological characteristics, especially in its muc...

Guizhou is an important ecological barrier in the upper reaches of Yangtze River and Pearl basins with abundant fish species. However, from these regions are threatened by anthropogenic activities, including overfishing habitat destruction. Here, we assessed diversity more than half species region using DNA barcoding (partial sequence cytochrome c oxidase subunit I (COI) gene). We obtained 800 ...