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MAX4 and RMS1 are orthologous dioxygenase-like genes that regulate shoot branching in Arabidopsis and pea

Citation

Sorefan, K and Booker, J and Haurogne, K and Goussot, M and Bainbridge, K and Foo, E and Chatfield, S and Ward, S and Beveridge, C and Rameau, C and Leyser, O, MAX4 and RMS1 are orthologous dioxygenase-like genes that regulate shoot branching in Arabidopsis and pea, Genes and Development, 17 pp. 1469-1474. ISSN 0890-9369 (2003) [Refereed Article]

Abstract

Shoot branching is inhibited by auxin transported down the stem from the shoot apex. Auxin does not accumulate in inhibited buds and so must act indirectly. We show that mutations in the MAX4 gene of Arabidopsis result in increased and auxin-resistant bud growth. Increased branching in max4 shoots is restored to wild type by grafting to wild-type rootstocks, suggesting that MAX4 is required to produce a mobile branch-inhibiting signal, acting downstream of auxin. A similar role has been proposed for the pea gene, RMS1. Accordingly, MAX4 and RMS1 were found to encode orthologous, auxin-inducible members of the polyene dioxygenase family.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Plant Physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Horticultural Crops not elsewhere classified
Author:Foo, E (Dr Eloise Foo)
ID Code:72207
Year Published:2003
Deposited By:Plant Science
Deposited On:2011-08-24
Last Modified:2011-08-24
Downloads:0

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