terpenes synthesis pathway

1. BY SHRUSHTI JOSHI
164551

2.  Terpenes are a large and diverse class of secondary
metabolite produced by plants.
 Terpene, a class of hydrocarbons occurring widely in
plants and animals and empirically regarded as built
up from isoprene, a hydrocarbon consisting of five
carbon atoms attached to eight hydrogen atoms
(C5H8). The term is often extended to the terpenoids,
which are oxygenated derivatives of these
hydrocarbons.

4.  The name "terpene" is derived from the german word
“terpentine “
 Kekule in 1866 first termed terpenes.

5.  Terpenes are biosynthesized from primary metabolite
in at least 2 ways
1. Mevalonate pathway
2. Methylerythritol phosphate pathway

6.  Discovered by Lynen and Bloch in 1950.
 Takes place in the cytosol.
 Rate limiting enzyme in this pathway is HMG-CoA
reductase.

8.  Discovered by Lichtenthaler in 1999
 Takes place in leucoplast.
 Rate limiting enzyme is DXP reductase.

11. THANK YOU