- Abscisic acid is a mildly acidic dextrorotatory cis sesquiterpene growth hormone which functions as a general growth inhibitor by counteracting other hormones (auxin, gibberellins, and cytokinins) or reactions mediated by them.
- It is also called the stress hormone because the production of hormone is stimulated by drought, water logging and other adverse environmental conditions.
- ABA is synthesized in many parts of the plants but abundantly inside the chloroplasts of green cells.
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ABA is synthesized in many parts of the plants but abundantly inside the chloroplasts of green cells. Hence, the correct answer is chloroplast.
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