14 Facts About Auxin


Auxin is present in all parts of a plant, although in very different concentrations.

FactSnippet No. 1,097,746

Auxin found that the tip could be cut off and put back on, and that a subsequent one-sided illumination was still able to produce a positive phototropic curvature in the basal part of the coleoptile.

FactSnippet No. 1,097,747

Auxin demonstrated that the transmission could take place through a thin layer of gelatin separating the unilaterally illuminated tip from the shaded stump.

FactSnippet No. 1,097,748

Auxin has a significant effect on spatial and temporal gene expressions during the growth of apical meristems.

FactSnippet No. 1,097,749

Auxin relies on PIN1 which works as an auxin efflux carrier.

FactSnippet No. 1,097,750

Auxin employment begins in the embryo of the plant, where the directional distribution of auxin ushers in subsequent growth and development of primary growth poles, then forms buds of future organs.

FactSnippet No. 1,097,751

Auxin participates in phototropism, geotropism, hydrotropism and other developmental changes.

FactSnippet No. 1,097,752

Auxin induces sugar and mineral accumulation at the site of application.

FactSnippet No. 1,097,753

Auxin induces the formation and organization of phloem and xylem.

FactSnippet No. 1,097,754

Auxin induces both growth of pre-existing roots and root branching, and adventitious root formation.

FactSnippet No. 1,097,755

Auxin is sent to the part of the plant facing away from the light, where it promotes cell elongation, thus causing the plant to bend towards the light.

FactSnippet No. 1,097,756

Auxin is required for fruit growth and development and delays fruit senescence.

FactSnippet No. 1,097,757

Auxin must be removed from the valve margin cells to allow the valve margins to form.

FactSnippet No. 1,097,758

Auxin plays a minor role in the initiation of flowering and development of reproductive organs.

FactSnippet No. 1,097,759