Biology, asked by kynjairi, 1 year ago

short notes on abscisic acid

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Answered by Anonymous
11

Abscisic acid owes its names to its role in the abscission of plant leaves. In preparation for winter, ABA is produced in terminal buds. This slows plant growth and directs leaf primordia to develop scales to protect the dormant buds during the cold season.


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Answered by aayushthakur543
4
Abscisic acid (ABA) is an inhibitory hormone in plants that helps a plant adapt to stress. It also plays a key role in the closure of the plant’s stomata, bud development, and seed dormancy. The hormone not only allows the plant to survive during times of adversity, but also assists the plant in adapting to the changing seasons.

Abscisic acid was first discovered in the cotton plant during the early 1960s by F.T. Addicott and his associates. It occurs in a plant’s leaves, green fruits, stems, and in the roots.

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