Full datasets underlying graphs presented in the above named paper.This research data supports 'Connective auxin transport in the shoot facilitates communication between shoot apices', which will be published in the 'PLoS Biology' journal. This record will be updated with publication details.10.1371/journal.pbio.1002446This work was supported by the ERC [grant number N° 294514 – EnCoDe] and the Swedish Governmental Agency for Innovation Systems (VINNOVA) and the Swedish Research Council (VR)  [grant number GAT3272C

Bennett, Tom

Hines, Geneviève

Leyser, Ottoline

Ljung, Karin

Sawchuk, Megan G

Scarpella, Enrico

van Rongen, Martin

Waldie, Tanya

PLoS Biology

PubMed

The bulk polar movement of the plant signaling molecule auxin through the stem is a long-recognized but poorly understood phenomenon. Here we show that the highly polar, high conductance polar auxin transport stream (PATS) is only part of a multimodal auxin transport network in the stem. The dynamics of auxin movement through stems are inconsistent with a single polar transport regime and instead suggest widespread low conductance, less polar auxin transport in the stem, which we term connective auxin transport (CAT). The bidirectional movement of auxin between the PATS and the surrounding tissues, mediated by CAT, can explain the complex auxin transport kinetics we observe. We show that the auxin efflux carriers PIN3, PIN4, and PIN7 are major contributors to this auxin transport connectivity and that their activity is important for communication between shoot apices in the regulation of shoot branching. We propose that the PATS provides a long-range, consolidated stream of information throughout the plant, while CAT acts locally, allowing tissues to modulate and be modulated by information in the PATS

Bennett, T

Hines, G

van Rongen, M

Waldie, T

Sawchuk, MG

Scarpella, E

Ljung, K

Leyser, O

White Rose Research Online

Connective Auxin Transport in the Shoot Facilitates Communication between Shoot Apices.

Tom Bennett

Geneviève Hines

Martin van Rongen

Tanya Waldie

Megan G Sawchuk

Enrico Scarpella

Karin Ljung

Ottoline Leyser

Directory of Open Access Journals

The bulk polar movement of the plant signaling molecule auxin through the stem is a long-recognized but poorly understood phenomenon. Here we show that the highly polar, high conductance polar auxin transport stream (PATS) is only part of a multimodal auxin transport network in the stem. The dynamics of auxin movement through stems are inconsistent with a single polar transport regime and instead suggest widespread low conductance, less polar auxin transport in the stem, which we term connective auxin transport (CAT). The bidirectional movement of auxin between the PATS and the surrounding tissues, mediated by CAT, can explain the complex auxin transport kinetics we observe. We show that the auxin efflux carriers PIN3, PIN4, and PIN7 are major contributors to this auxin transport connectivity and that their activity is important for communication between shoot apices in the regulation of shoot branching. We propose that the PATS provides a long-range, consolidated stream of information throughout the plant, while CAT acts locally, allowing tissues to modulate and be modulated by information in the PATS.This is the final published version. It first appeared at http://journals.plos.org/plosbiology/article?id=info:doi/10.1371/journal.pbio.1002446

Apollo (Cambridge)

Leyser, Otttoline

Research data supporting 'Connective auxin transport in the shoot facilitates communication between shoot apices'.

<div><p>The bulk polar movement of the plant signaling molecule auxin through the stem is a long-recognized but poorly understood phenomenon. Here we show that the highly polar, high conductance polar auxin transport stream (PATS) is only part of a multimodal auxin transport network in the stem. The dynamics of auxin movement through stems are inconsistent with a single polar transport regime and instead suggest widespread low conductance, less polar auxin transport in the stem, which we term connective auxin transport (CAT). The bidirectional movement of auxin between the PATS and the surrounding tissues, mediated by CAT, can explain the complex auxin transport kinetics we observe. We show that the auxin efflux carriers PIN3, PIN4, and PIN7 are major contributors to this auxin transport connectivity and that their activity is important for communication between shoot apices in the regulation of shoot branching. We propose that the PATS provides a long-range, consolidated stream of information throughout the plant, while CAT acts locally, allowing tissues to modulate and be modulated by information in the PATS.</p></div

Tom Bennett (2633533)

Geneviève Hines (2633536)

Martin van Rongen (2633530)

Tanya Waldie (2633539)

Megan G. Sawchuk (381016)

Enrico Scarpella (381018)

Karin Ljung (259492)

Ottoline Leyser (25869)

FigShare

Connective Auxin Transport in the Shoot Facilitates Communication between Shoot Apices

http://creativecommons.org/licenses/by-nc-nd/2.0/uk/

Research data supporting 'Connective auxin transport in the shoot facilitates communication between shoot apices'.

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White Rose Research Online

White Rose Research Online

Directory of Open Access Journals

Apollo (Cambridge)

Apollo (Cambridge)

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