Spring bud growth depends on sugar delivery by xylem and water recirculation by phloem Münch flow in Juglans regia

Spring bud growth depends on sugar delivery by xylem and water recirculation by phloem Münch... Planta (2017) 246:495–508 DOI 10.1007/s00425-017-2707-7 ORIGINAL ARTICLE Spring bud growth depends on sugar delivery by xylem and water recirculation by phloem Mu ¨ nch flow in Juglans regia 1 2 1 1 • • • • Aude Tixier Or Sperling Jessica Orozco Bruce Lampinen 3 4 5 1 • • • Adele Amico Roxas Sebastian Saa J. Mason Earles Maciej A. Zwieniecki Received: 7 February 2017 / Accepted: 29 April 2017 / Published online: 9 May 2017 Springer-Verlag Berlin Heidelberg 2017 Abstract notion of long-distance translocation. Girdling and dye Main conclusion During spring, bud growth relies on perfusion experiments were performed to assess the role of long-distance transport of remotely stored carbohy- phloem and xylem in the transport of carbohydrate and drates. A new hypothesis suggests this transport is water towards the buds. Girdling caused a decrease in non- achieved by the interplay of xylem and phloem. structural carbohydrate concentration above the point of girdling and an unexpected concurrent increase in water During the spring, carbohydrate demand of developing content associated with impeded xylem transport. Based on buds often exceeds locally available storage, thus requiring experimental observations and modeling, we propose a the translocation of sugars from distant locations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Planta Springer Journals

Spring bud growth depends on sugar delivery by xylem and water recirculation by phloem Münch flow in Juglans regia

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Subject
Life Sciences; Plant Sciences; Agriculture; Ecology; Forestry
ISSN
0032-0935
eISSN
1432-2048
D.O.I.
10.1007/s00425-017-2707-7
Publisher site
See Article on Publisher Site

Abstract

Planta (2017) 246:495–508 DOI 10.1007/s00425-017-2707-7 ORIGINAL ARTICLE Spring bud growth depends on sugar delivery by xylem and water recirculation by phloem Mu ¨ nch flow in Juglans regia 1 2 1 1 • • • • Aude Tixier Or Sperling Jessica Orozco Bruce Lampinen 3 4 5 1 • • • Adele Amico Roxas Sebastian Saa J. Mason Earles Maciej A. Zwieniecki Received: 7 February 2017 / Accepted: 29 April 2017 / Published online: 9 May 2017 Springer-Verlag Berlin Heidelberg 2017 Abstract notion of long-distance translocation. Girdling and dye Main conclusion During spring, bud growth relies on perfusion experiments were performed to assess the role of long-distance transport of remotely stored carbohy- phloem and xylem in the transport of carbohydrate and drates. A new hypothesis suggests this transport is water towards the buds. Girdling caused a decrease in non- achieved by the interplay of xylem and phloem. structural carbohydrate concentration above the point of girdling and an unexpected concurrent increase in water During the spring, carbohydrate demand of developing content associated with impeded xylem transport. Based on buds often exceeds locally available storage, thus requiring experimental observations and modeling, we propose a the translocation of sugars from distant locations

Journal

PlantaSpringer Journals

Published: May 9, 2017

References

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