Describe The Structure Of Gibberellins ?

1.	Describe The Structure Of Gibberellins ?
Answer» The gibberellins are a large family of diterpene acids. The SYSTEMATIC nomenclature is based or the gibbane ring system which is common to all known gibberellins. A more appropriate parent skeleton gibberellins have been proposed as the basic ring structure which has a numbering system CORRESPONDING to other cyclic diterpenes especially kaurene, a crucial INTERMEDIARY in GA biogenesis. Individual GAs are referred to as GAX in the series GA1 – GAn, the numbers usually follow the order of discovery. GAs can be subdivided as C20 and C19 compounds according to the number of CARBON atoms. C20 – GAs have carboxyl groups in POSITIONS 7 and 18 and some have also in 20, while some have an aldehyde group in the latter position. The C19 GAs are all monocarboxylic acids with carboxyl group in position seven and have lactone configuration in A ring which arises by the loss of carbon – 20.

Answer»

The gibberellins are a large family of diterpene acids. The SYSTEMATIC nomenclature is based or the gibbane ring system which is common to all known gibberellins. A more appropriate parent skeleton gibberellins have been proposed as the basic ring structure which has a numbering system CORRESPONDING to other cyclic diterpenes especially kaurene, a crucial INTERMEDIARY in GA biogenesis.
Individual GAs are referred to as GAX in the series GA1 – GAn, the numbers usually follow the order of discovery. GAs can be subdivided as C20 and C19 compounds according to the number of CARBON atoms. C20 – GAs have carboxyl groups in POSITIONS 7 and 18 and some have also in 20, while some have an aldehyde group in the latter position.
The C19 GAs are all monocarboxylic acids with carboxyl group in position seven and have lactone configuration in A ring which arises by the loss of carbon – 20.

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