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Gibberellic Acid - Coggle Diagram
Gibberellic Acid
Function
Flowering
- Promotes stamen
differentiation.
- Promotes dehiscence and
normal flower development.
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Radical emergence
- Initiates endosperm cap
weakening.
- Upregulates production
of hydrolytic enzymes.
Embryo development
- Promotes maintenance of vivipary.
- Promotes embryo development.
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Transport
GA influx
transporters
NPF (Nitrate transporter 1/peptide
transporter.
SWEET13 and SWEET14 transporter
which also transport sucrose.
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Toxicity
Plants
Yellowing of leaves,
epinasty, hyponasty.
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General information
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Discovery
Discovered by Kurosawa, in Japan, 1926.
In fungus Gibberella fujikurio
Chemical properties
These are pentacyclic diterpenes.
Derived from ent-Gibberellane
All types differ in certain
modifications to the parent
chemical structure to form GAs
Source and Biosynthesis
Synthesis takes place in
3 sites in the cell in plastids,
Endoplasmic reticulum and
cytoplasms.
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Source
Widely distributed throughout
many plant locations.
Mainly found in
- Seeds
- Young leaves.
- Roots.
- Flowers