Professor CHEN Jijun and his colleagues systemically studied the chemical components of traditional Chinese medicinal herbs-Swertia mileensis to provide 23 interesting new compounds and another 16 compounds.
Based on spectral evidence and X-ray single diffraction analysis, these new compounds had be elucidated as 4 novel types of iridoid lactones composing of C18, C20 , C29 including A...
Craigia yunnanensis (Tiliaceae) is an endangered deciduous tree species which has high scientific and economic value. C. yunnanensis is seriously threatened and has been pushed to the verge of extinction due to vegetation destruction in China and consequent contraction of its distribution. Hence, it was listed as a nationally rare and endangered plant in 1999 and has also been proposed as a sec...
Monoterpenoid indole alkaloids (MIAs) account for a important group of natural products. Both their highly complex chemical structures and pronounced pharmacological activity have made research on alkaloids, including elucidation of their biosynthetic pathways, very attractive for many decades. MIAs have been proposed to arise from strictosidine, which itself originates from the condensation of...
Oligopeptide is one family of short peptides containing several amino acids, it can be used as the required carbon nitrogen resource during organ material and energy metabolism, as well as signals mediating multiple biological functions. Its main function so far is to rapid transport the extracellular oligopeptides into cells. Now most study only focus on bacterial and animal, the relevant stud...
It is commonly known that the topography of Hengduan Mountains, southwest(SW) China, had experienced changes dramatically resulted in several quick uplifts of the Qinghai-Tibet Plateau. The river drainages of Paleo Red River also experienced dramatic changes during the period. River Capture played an important role in drainage evolution, after which several branches, i.e. upper Yangtze River, Y...
Floral nectar is offered by plants to animals as reward for pollination, the co-evolution between visual signals produced by plants and the animal mutualsists is one of the most intriguing subjects in the evolutional biological sciences. In nature, while necar generally is a clear liquid containing sugar and trace amounts of amino acids, a few plant species produce intriguing coloured nectar. W...
Southwest China is one of the most important distribution centers of Rhododendron in the world with more than four hundred species. One of the most common Rhododendron species in southwest China is Rhododendron decorum Franch. This is an important ornamental plant and plays an important role in establishment of forests in harsh environments. Ericoid mycorrhiza plays important roles in plant nut...
Rosales are one major subclade of symbiotic nitrogen fixing plant clade and comprise nine families: Barbeyaceae, Cannabaceae, Dirachmaceae, Elaeagnaceae, Moraceae, Rhamnaceae, Rosaceae, Ulmaceae, and Urticaceae, which includes about 261 genera and 7725 species. These families are morphologically heterogeneous, and had been considered to be distantly related and placed in different orders in tr...
Nitric oxide (NO) is the “star molecule” in physiological field, it play multiple aspect of physiological function. In plant physiology, it is reported that NO can enhance plant tolerance to various stress such as saline, high temperature, but it is less enough study in the internal mechanism in NO-mediated plant tolerance at proteomics level.
The groups leaded by Professor YANG Yongping ...
