Secondary metabolites are chemical found in plants. These have no role in plant growth but these are important for human because it have many pharmacological activity. Bergenia species such as Bergenia stracheyi, Bergenia ligulata And Bergenia ligulata etc. have many secondary metabolites such as 1. Bergenin 2. Tannic acid 3. Gallic acid 4. Stigmesterol 5. β-Sitosterol 6. catechin 7. (+)-Afzele...

In vitro studies of the influence of FMC 57020 on terpenoid biosynthesis have shown that this herbicide acts at an early stage. It affects the conversion of isopentenyl pyrophosphate to geranylgeranyl pyrophosphate catalyzed by isopentenyl pyrophosphate isomerase and prenyl transferase. An inhibition of the carotenogenic enzymes phytoene desaturase, ^-carotene desaturase, and lycopene cyclase c...

Subfractions isolated from intact purified spinach chloroplasts are able to prenylate the aromatic moiety of cY-tocopherol and plastoquinone-9 precursors. The biosynthesis of a-tocopherol and plastoquinone-9 is a compartmentalized process. The chloroplast envelope membranes are the only site of the enzymatic prenylation in a-tocopherol synthesis whereas the thylakoid membrane is also involved i...

Bioactivity-guided fractionation of the leaves of Salvia divinorum has resulted in the isolation of three new neoclerodane diterpenoids: divinatorin D (1), divinatorin E (2), and salvinorin G (3), together with 10 known terpenoids, divinatorin C (4), hardwickiic acid (5), salvinorin-A (6), -B (7), -C (8), -D (9), -E (10), and -F (11), presqualene alcohol (12), and (E)-phytol (13). The structure...