Study on Plant Growth Regulation Activity of the Low Polar Fractions from Mikania micrantha H. B. K. on Phaseolus radiaus

摘要

Some chemical compounds in petroleum ether extract of Mikania micrantha H. B. K. can strongly influence seedling growth of Phaseolus radiaus. In this study, we provide evidence that the chemical compounds in active fraction chromatographed on normal phase silica gel columns from petroleum ether extract of M. micrantha have strong activity to promote P. radiaus taking root. But meanwhile, these chemical compounds could be inhibitors for P. radiaus root growth. Two main chemical constituents, α-Bisabolol and Eudesma-5,11(13)-dien-8,12-olide, in the active fraction were confirmed by GC-MS analysis.