ABI3Abscisic Acid Insensitive 3
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The pkl mutant seed germination found to be hypersensitive to abscisic acid treatment due to abnormally high and persistent ABI3 and ABI5 expression, suggesting that PICKLE is necessary to repress these genes expression during germination (Perruc et al.
Earlier, scientists had showed that seeds depended on both the plant hormone ABA and the regulatory molecule ABI3 to survive drying.
This said to us that ABI3 either stabilizes the messenger RNA molecules whose creation is triggered by ABA, or it somehow allows messenger RNA to continue to be synthesized during rehydration," he explained.