why is abscissic acid called an emergency hormone in plants?
Answers
Answered by
6
hope this helps u plz mark as brainlist
Why is Abscisic acid also known asstress hormone? Abscisic acid iscalled stress hormones as it induces various responses in plants against stress conditions. ... It induces the closure of the stomata during water stress. It promotes seed dormancy and ensures seed germination during favourable conditions.
Why is Abscisic acid also known asstress hormone? Abscisic acid iscalled stress hormones as it induces various responses in plants against stress conditions. ... It induces the closure of the stomata during water stress. It promotes seed dormancy and ensures seed germination during favourable conditions.
palak1431:
What
Answered by
50
Answer:
- Abscissic acid is called stress hormone because it is produced during drought and unfavourable climatic conditions.
- During drought and other adverse conditions, ABA is formed in leaves, it brings about the closing of stomata to reduce the rate of transpiration. Thus, abscissic acid acts as antitranspirant.
- ABA promotes senescence in leaves by causing loss of chlorophyll and decreasing rate of photosynthesis. ABA also inhibits the synthesis of RNA and proteins.
- Abscissic acid enables the seeds to withstand under the conditions of water stress.
Similar questions