Question

Differentiate between the following:
Auxins and ethylene

Answer 1

Auxin:

1. It is a plant hormone that is considered as a growth promoter and helps in the elongation of shoots & roots.

Ethylene:

1. It is also a plant hormone that is gaseous in nature and has a sweetish smell.

Auxin	Ethylene
1. Synthesised in shoot apical meristem.	1. Synthesised in senescent leaves.
2. Promotes cell elongation.	2. Promotes ageing and senescence.
3. Prevent shedding of leaves and fruits.	3. Helps in the abscission of leaves.
4. Help in stem cell maintenance.	4. Help in seed germination.