Browsing by overabundant herds of white-tailed deer (Odocoileus virginianus) can cause signifi cant economic damage to agricultural crops and landscape plantings. In many instances, for both commercial growers and homeowners, commercially available repellents may be an appealing alternative to physical exclusion and lethal control of animals. We tested 10 different commercially-available repell...

BACKGROUND Despite the availability of several studies to clarify taxonomic problems on the highly threatened yews of the Hindu Kush-Himalaya (HKH) and adjacent regions, the total number of species and their exact distribution ranges remains controversial. We explored the use of comprehensive sets of morphological, molecular and climatic data to clarify taxonomy and distributions of yews in thi...

to treat melanomas, lung, head, and neck cancers. Ornamental yews have been identified as a potential renewable source of taxol and related taxanes. Commercial nurseries were surveyed during Summer and Fall 1991 as a basis for estimating populations of Taxus cultivars currently growing in the United States. Clippings of selected cultivars were sampled from nursery fields in Ohio Production & Ma...

Currently, taxol is mainly extracted from the bark of yews; however, this method can not meet its increasing demand on the market because yews grow very slowly and are a rare and endangered species belonging to first- level conservation plants. Recently, increasing efforts have been made to develop alternative means of taxol production; microbe fermentation would be a very promising method to i...

Since Taxol isolation from yews (Taxus brevifolia) in 1971, taxanes showed a remarkable anti-cancer activity1. Paclitaxel and docetaxel, the first two members of the taxanes family, are widely used as firstor second-line therapy (alone or in combination regimens), to treat different tumors including refractory or metastatic ones2. Although these microtubule-stabilizing drugs are very active age...

The genus Taxus (yews) is the largest of family Taxaceae. It comprises about 24 species with 55 varieties distributed mainly in Asia, Europe, North Africa, and America. In addition to taxane diterpenoids cancer drug taxol, its contain many essential oils actual or potential biological activity. This review covers chemical constituents as well activities these that have been studied fourteen cou...