Effect of ecological factors on taxol content in Taxus wallichiana var. chinensis
ZHANG Jiu-dong1, 2, TIAN Xian-hua2*, FENG Ning3 , REN Yi2
(1 College of Biotechnology, Xi′an University of Arts and Science, Xi′an 710065, Shaanxi, China; 2 Key Laboratory of Medicinal Plant Resources and Natural Pharmaceutical Chemistry, Ministry of Education,College of Life Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China; 3 Shaanxi Province Administration Office of National Nature Reserves and Wildlife, Xi′an 710082, Shaanxi, China)
Abstract:
The effects of ecological factors on taxol content in Taxus wallichiana var. chinensis were studied. The following results were obtained. The taxol content was significantly correlated with the altitude, slope, the distance to river, the soil organic matter and the nitrogen content.The results showed that the taxol content was significant high at the plots located in 1 000～1 300 m in elevation, as well as the content of soil organic matter≤100 g/kg in these plots. The principal component analysis of the 11 factors showed that the sequence of factors which may affect the content of taxol is as fellows, organic matter, nitrogen, phosphorus, kalium, altitude, distance to river, slope position, vegetation types, gradient, slope and pH. The content of taxol can be improved through the control of different ecological factors.
KeyWords:
ecological factors; secondary metabolites; taxol content
