Abstract:

To know the accumulate regulation about tanshinone ⅡA, preliminary study on its biosynthetic course. To known the accumulation regulation about tanshinone ⅡA, preliminary study had been done on the biosynthetic course. This study chosen 7 salvia strains as material, and their tanshinone ⅡA concentration in root, chlorophyll concentration in leaf and POD activity had been tested at different growth stage. Data shown that: the accumulation regulation about tanshinone could be divided by tanshinone ⅡA concentration at 0.2%; significant correlation existed between the tanshinone ⅡA concentration and chlorophyll a concentration in leaf (rca＝0.458), stronger significant correlation existed between the tanshinone ⅡA concentration and carotenoid concentration in leaf (rxc=0.623), while there was not correlation between the tanshinone ⅡA concentration and chlorophyll b concentration in leaf (rcb＝0.069). The coefficient of the tanshinone ⅡA concentration and POD activity was 0.577, significant correlation existed. Hence, it had been supposed that if the tanshinone ⅡA concentration’s decline or not at flowering stage related to tanshinone ⅡA biosynthetic efficiency; the start step about biosynthetic course of tanshinone ⅡA maybe looked like to the carotenoid, and some gene looked like to chlorophyll a, but disliked to chlorophyll b; while tanshinone ⅡA related to the oxidation of auxin, and POD may attached to the biosynthesis of tanshinone ⅡA directly or indirectly.