The SHORT-ROOT gene controls radial patterning of the Arabidopsis root through radial signaling.

Journal Article (Journal Article)

Asymmetric cell divisions play an important role in the establishment and propagation of the cellular pattern of plant tissues. The SHORT-ROOT (SHR) gene is required for the asymmetric cell division responsible for formation of ground tissue (endodermis and cortex) as well as specification of endodermis in the Arabidopsis root. We show that SHR encodes a putative transcription factor with homology to SCARECROW (SCR). From analyses of gene expression and cell identity in genetically stable and unstable alleles of shr, we conclude that SHR functions upstream of SCR and participates in a radial signaling pathway. Consistent with a regulatory role in radial patterning, ectopic expression of SHR results in supernumerary cell divisions and abnormal cell specification in the root meristem.

Full Text

Duke Authors

Cited Authors

  • Helariutta, Y; Fukaki, H; Wysocka-Diller, J; Nakajima, K; Jung, J; Sena, G; Hauser, MT; Benfey, PN

Published Date

  • May 2000

Published In

Volume / Issue

  • 101 / 5

Start / End Page

  • 555 - 567

PubMed ID

  • 10850497

Electronic International Standard Serial Number (EISSN)

  • 1097-4172

International Standard Serial Number (ISSN)

  • 0092-8674

Digital Object Identifier (DOI)

  • 10.1016/s0092-8674(00)80865-x


  • eng