Wulf, KE and Reid, JB and Foo, E, Auxin transport and stem vascular reconnection - has our thinking become canalised?, Annals of Botany, 123, (3) pp. 429-439. ISSN 0305-7364 (In Press) [Refereed Article]
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Available from 31 October 2019
Copyright The Author(s) 2018
Background: The presence of a polar auxin transport stream has long been correlated with the differentiation and patterning of vascular cells across vascular plants. As our understanding of auxin transport and vascular development has grown, so too has evidence for the correlation between these processes. However, a clear understanding of the cellular and molecular mechanisms driving this correlation has not been elucidated.
Scope: This article examines the hypothesis that canalisation via polar auxin transport regulates vascular reconnection and patterning in the stem after wounding or grafting. We examine the evidence for the causal nature of the relationship and the suggested role that other hormones may play. Data are presented indicating that in grafted plants the degree of auxin transport may not always correlate with vascular reconnection. Furthermore, data on grafting success using plants with a range of hormone-related mutations indicate that these hormones may not be critical for vascular reconnection.
Conclusions: In the past, excellent work examining elements of auxin synthesis, transport and response in relation to vascular development has occurred. However, new experimental approaches are required to more directly test the hypothesis that auxin transport regulates stem vascular reconnection after wounding or grafting. This could include studies on the timing of the re-establishment of auxin transport and vascular reconnection after grafting and the influence of auxin transport mutants and inhibitors on these processes using live imaging.
|Item Type:||Refereed Article|
|Keywords:||auxin, grafting, canalisation, vascular development|
|Research Division:||Biological Sciences|
|Research Group:||Plant Biology|
|Research Field:||Plant Physiology|
|Objective Division:||Plant Production and Plant Primary Products|
|Objective Group:||Environmentally Sustainable Plant Production|
|Objective Field:||Environmentally Sustainable Plant Production not elsewhere classified|
|UTAS Author:||Wulf, KE (Miss Kate Wulf)|
|UTAS Author:||Reid, JB (Professor Jim Reid)|
|UTAS Author:||Foo, E (Dr Eloise Foo)|
|Year Published:||In Press|
|Funding Support:||Australian Research Council (FT140100770)|
|Deposited By:||Plant Science|
|Downloads:||1 View Download Statistics|
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