Question

How do auxins help in Delay fall of leaves ?

Answer 1

Auxin is a hormone that is produced in the plant's growing tips both above ground and in the roots. It influences water absorption, cell division and cell stretching (it softens cell walls), among other things. Because auxin promotes the formation of roots on stems it is used in a variety of forms in rooting hormones.

Answer 2

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Auxins are plant hormones. The most important auxin produced by plants is indole-3-acetic acid (IAA).

It plays important roles in a number of plant activities, including:
development of the embryo
leaf formation
phototropism
gravitropism
apical dominance
fruit development
abscission
root initiation and development
the shade-avoidance effect:-) :-) :-) --


The formation of new leaves in the apical meristem [View] is initiated by the accumulation of auxin. Already-developing leaves deplete the surrounding cells of auxin so that the new leaves do not form too close to them. In this way, the characteristic pattern of leaves in the plant is established.

Auxin also controls the precise patterning of the epidermal cells of the developing leaf.--:-) :-) :-) :-) :-)




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