[Dynamic accumulation of dry substance and active components in root of Peucedanum praeruptorum].
OBJECTIVE
To study the dynamic accumulation regulation of dry substance and four coumarin constituents in root of Peucedanum praeruptorum, so to provide the basis for optimal harvest time.


METHODS
Roots of P. praeruptorum were collected periodically. The dry weight of the roots was measured and the content of four coumarins was determined by HPLC method.


RESULTS
The dry substance accumulation of the root reached the maximum amount and the coumarin contents maintain stability at the end of the vegetative growth period. The coumarins of roots decline significantly in the reproductive growth period.


CONCLUSIONS
The most optimum collecting time of root of P. praeruptorum cultivated in Ningguo county in Anhui province should be from December to next February.
Anhui Key Laboratory of Modernized Chinese Material, Anhui University of Traditional Chinese Medicine, Hefei 230031, China.
Nian-Jun
NJ
Yu
Wen-Ling
WL
Wu
Shou-Jin
SJ
Liu
Cheng-Wu
CW
Fang
Ji-Ren
JR
Xiang
Li
L
Pan
D019661:Apiaceae / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D003374:Coumarins / Q000032:analysis / Q000378:metabolism; D010936:Plant Extracts / Q000032:analysis* / Q000378:metabolism; D018517:Plant Roots / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism
D003374:Coumarins; D010936:Plant Extracts; C030123:coumarin