Control of axillary bud initiation and shoot architecture in Arabidopsis through the SUPERSHOOT gene. Tantikanjana, T., Yong, J. W. H., Letham, D. S., Griffith, M., Hussain, M., Ljung, K., Sandberg, G., & Sundaresan, V. Genes & Development, 15(12):1577–1588, June, 2001. Company: Cold Spring Harbor Laboratory Press Distributor: Cold Spring Harbor Laboratory Press Institution: Cold Spring Harbor Laboratory Press Label: Cold Spring Harbor Laboratory Press Publisher: Cold Spring Harbor Lab![Control of axillary bud initiation and shoot architecture in Arabidopsis through the SUPERSHOOT gene [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 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 anArabidopsis 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 forSPS in modulating hormone levels. The expression pattern ofSPS, 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.
@article{tantikanjana_control_2001,
title = {Control of axillary bud initiation and shoot architecture in {Arabidopsis} through the {SUPERSHOOT} gene},
volume = {15},
issn = {0890-9369, 1549-5477},
url = {http://genesdev.cshlp.org/content/15/12/1577},
doi = {10/b2rhkq},
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 anArabidopsis 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 forSPS in modulating hormone levels. The expression pattern ofSPS, 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.},
language = {en},
number = {12},
urldate = {2021-11-02},
journal = {Genes \& Development},
author = {Tantikanjana, Titima and Yong, Jean W. H. and Letham, D. Stuart and Griffith, Megan and Hussain, Mumtaz and Ljung, Karin and Sandberg, Göran and Sundaresan, Venkatesan},
month = jun,
year = {2001},
pmid = {11410537},
note = {Company: Cold Spring Harbor Laboratory Press
Distributor: Cold Spring Harbor Laboratory Press
Institution: Cold Spring Harbor Laboratory Press
Label: Cold Spring Harbor Laboratory Press
Publisher: Cold Spring Harbor Lab},
keywords = {Arabidopsis, Axillary meristem, apical dominance, branching, bud initiation, cytochrome P450, cytokinins},
pages = {1577--1588},
}
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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 forSPS in modulating hormone levels. The expression pattern ofSPS, with strong expression at the leaf axils, correlates well with the phenotypic defects. 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