Please use this identifier to cite or link to this item: https://doi.org/10.1101/gad.887301
Title: Control of axillary bud initiation and shoot architecture in Arabidopsis through the SUPERSHOOT gene
Authors: Tantikanjana, T. 
Yong, J.W.H.
Letham, D.S.
Griffith, M.
Hussain, M.
Ljung, K.
Sandberg, G.
Sundaresan, V. 
Keywords: Apical dominance
Arabidopsis
Axillary meristem
Branching
Bud initiation
Cytochrome P450
Cytokinins
Issue Date: 15-Jun-2001
Citation: Tantikanjana, T., Yong, J.W.H., Letham, D.S., Griffith, M., Hussain, M., Ljung, K., Sandberg, G., Sundaresan, V. (2001-06-15). Control of axillary bud initiation and shoot architecture in Arabidopsis through the SUPERSHOOT gene. Genes and Development 15 (12) : 1577-1588. ScholarBank@NUS Repository. https://doi.org/10.1101/gad.887301
Abstract: The aerial architecture of flowering plants is determined to a large extent by shoot growth and shoot branching arising from the initiation and growth of axillary meristems. We have identified an Arabidopsis mutant, supershoot (sps), which is characterized by a massive overproliferation of shoots, such that a single plant can generate 500 or more inflorescences. Analysis of the mutant plants shows that the primary defect is because of an increase in the number of meristems formed in leaf axils, together with release of bud arrest, resulting in reiterative branch formation from rosette and cauline leaves. The SPS gene is shown here to encode a cytochrome P450, and together with a 3- to 9-fold increase in levels of Z-type cytokinins in sps mutant plants, indicate a role for SPS in modulating hormone levels. The expression pattern of SPS, with strong expression at the leaf axils, correlates well with the phenotypic defects. Our results indicate that control of shoot branching in Arabidopsis may be accomplished in part by suppression of axillary meristem initiation and growth through the localized attenuation of cytokinin levels at sites of bud initiation.
Source Title: Genes and Development
URI: http://scholarbank.nus.edu.sg/handle/10635/129654
ISSN: 08909369
DOI: 10.1101/gad.887301
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

131
checked on Sep 11, 2018

WEB OF SCIENCETM
Citations

124
checked on Sep 11, 2018

Page view(s)

10
checked on Jul 19, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.