Ammonium inhibition of Arabidopsis root growth can be reversed by potassium and by auxin resistance mutations aux1, axr1, and axr2.

doi:10.1104/pp.102.3.983

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Article

Ammonium inhibition of Arabidopsis root growth can be reversed by potassium and by auxin resistance mutations aux1, axr1, and axr2.

Plant physiology - 1 Jul 1993

Cao Y, Glass A D, Crawford N M

Abstract excerpt

A novel effect of ammonium ions on root growth was investigated to understand how environmental signals affect organ development. Ammonium ions (3-12 mM) were found to dramatically inhibit Arabidopsis thaliana seedling root growth in the absence of potassium even if nitrate was present. This inhi...

Topics

Ammonia
Arabidopsis
Biological Transport
Cations, Monovalent
Drug Resistance
Indoleacetic Acids
Mutation
Potassium
Rubidium

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