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. 1995 Nov;29(4):869-73.
doi: 10.1007/BF00041176.

Uridine, a cell division factor in pea roots

G Smit  1 , C C de Koster, J Schripsema, H P Spaink, A A van Brussel, J W Kijne
Affiliations

Uridine, a cell division factor in pea roots

G Smit et al. Plant Mol Biol. 1995 Nov.

Abstract

Nodulation (root nodule formation) in legume roots is initiated by the induction of cell divisions and formation of root nodule primordia in the plant root cortex, usually in front of the protoxylem ridges of the central root cylinder. We isolated a factor from the central cylinder (stele) of pea roots which enhances hormone-induced cell proliferation in root cortex explants at positions similar to those of nodule primordia. The factor was identified as uridine. Uridine may act as a morphogen in plant roots at picomolar concentrations.

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