Fig. 1

Schematic representation of this study design and polyphyllin concentration in different tissues. (a) Schematic diagram of P. polyphylla at four dominant developmental stages, including the vegetative stage, pollination stage, fruiting stage and senescence stage. (b) The changes in polyphyllin concentrations of twelve different tissues during the developmental stages. LV: leaves at the vegetative stage, SV: stems at the vegetative stage, RV: rhizomes at the vegetative stage; FP: flowers at the pollination stage, LP: leaves at the pollination stage, SP: stems at the pollination stage, RP: rhizomes at the pollination stage; FF: fruits at the fruiting stage, LF: leaves at the fruiting stage, SF: stems at the fruiting stage, RF: rhizomes at the fruiting stage; RS: rhizomes at the senescence stage. (c) The proportion of four types of polyphyllins in different tissues during development