Multiple pathways regulate shoot branching
Shoot branching patterns result from the spatio-temporal regulation of axillary bud outgrowth. Numerous endogenous, developmental and environmental factors are integrated at the bud and plant levels to determine numbers of growing shoots. Multiple pathways that converge to common integrators are mos...
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Frontiers Media S.A.
2015-01-01
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Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00741/full |
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doaj-29f46ad4eb144a84bfc86ff63cb94b342020-11-25T01:05:55ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2015-01-01510.3389/fpls.2014.00741121385Multiple pathways regulate shoot branchingCatherine eRameau0Jessica eBertheloot1Nathalie eLEDUC2Bruno eAndrieu3Soulaiman eSAKR4Fabrice eFoucher5INRA, AgroParisTech INRAUniversité d'AngersINRA, AgroParisTechAgrocampus-Ouest INRAShoot branching patterns result from the spatio-temporal regulation of axillary bud outgrowth. Numerous endogenous, developmental and environmental factors are integrated at the bud and plant levels to determine numbers of growing shoots. Multiple pathways that converge to common integrators are most probably involved. We propose several pathways involving not only the classical hormones auxin, cytokinins and strigolactones, but also other signals with a strong influence on shoot branching such as gibberellins, sugars or molecular actors of plant phase transition. We also deal with recent findings about the molecular mechanisms and the pathway involved in the response to shade as an example of an environmental signal controlling branching. We propose the TCP transcription factor TB1/BRC1 and the polar auxin transport stream in the stem as possible integrators of these pathways. We finally discuss how modeling can help to represent this highly dynamic system by articulating knowledges and hypothesis and calculating the phenotype properties they imply.http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00741/fullCytokininsmodelingfloweringpolar auxin transportshade avoidancestrigolactone |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Catherine eRameau Jessica eBertheloot Nathalie eLEDUC Bruno eAndrieu Soulaiman eSAKR Fabrice eFoucher |
spellingShingle |
Catherine eRameau Jessica eBertheloot Nathalie eLEDUC Bruno eAndrieu Soulaiman eSAKR Fabrice eFoucher Multiple pathways regulate shoot branching Frontiers in Plant Science Cytokinins modeling flowering polar auxin transport shade avoidance strigolactone |
author_facet |
Catherine eRameau Jessica eBertheloot Nathalie eLEDUC Bruno eAndrieu Soulaiman eSAKR Fabrice eFoucher |
author_sort |
Catherine eRameau |
title |
Multiple pathways regulate shoot branching |
title_short |
Multiple pathways regulate shoot branching |
title_full |
Multiple pathways regulate shoot branching |
title_fullStr |
Multiple pathways regulate shoot branching |
title_full_unstemmed |
Multiple pathways regulate shoot branching |
title_sort |
multiple pathways regulate shoot branching |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Plant Science |
issn |
1664-462X |
publishDate |
2015-01-01 |
description |
Shoot branching patterns result from the spatio-temporal regulation of axillary bud outgrowth. Numerous endogenous, developmental and environmental factors are integrated at the bud and plant levels to determine numbers of growing shoots. Multiple pathways that converge to common integrators are most probably involved. We propose several pathways involving not only the classical hormones auxin, cytokinins and strigolactones, but also other signals with a strong influence on shoot branching such as gibberellins, sugars or molecular actors of plant phase transition. We also deal with recent findings about the molecular mechanisms and the pathway involved in the response to shade as an example of an environmental signal controlling branching. We propose the TCP transcription factor TB1/BRC1 and the polar auxin transport stream in the stem as possible integrators of these pathways. We finally discuss how modeling can help to represent this highly dynamic system by articulating knowledges and hypothesis and calculating the phenotype properties they imply. |
topic |
Cytokinins modeling flowering polar auxin transport shade avoidance strigolactone |
url |
http://journal.frontiersin.org/Journal/10.3389/fpls.2014.00741/full |
work_keys_str_mv |
AT catherineerameau multiplepathwaysregulateshootbranching AT jessicaebertheloot multiplepathwaysregulateshootbranching AT nathalieeleduc multiplepathwaysregulateshootbranching AT brunoeandrieu multiplepathwaysregulateshootbranching AT soulaimanesakr multiplepathwaysregulateshootbranching AT fabriceefoucher multiplepathwaysregulateshootbranching |
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1725192438663872512 |