Does Don Fisher’s high-pressure manifold model account for phloem transport and resource partitioning? [PDF]
Frontiers in Plant Science, 2013 The pressure flow model of phloem transport envisaged by Münch (1930) has gained wide acceptance. Recently, however, the model has been questioned on structural and physiological grounds.
John William Patrick
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Coordination Between Phloem Loading and Structure Maintains Carbon Transport Under Drought
Frontiers in Plant Science, 2022 Maintaining phloem transport under water stress is expected to be crucial to whole-plant drought tolerance, but the traits that benefit phloem function under drought are poorly understood.
Ryan C. Stanfield, Megan K. Bartlett
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Structural and functional heterogeneity in phloem loading and transport [PDF]
Frontiers in Plant Science, 2013 The phloem is often regarded as a relatively straightforward transport system composed of loading (collection), long-distance (transport) and unloading zones.
Thomas L. Slewinski +2 more
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A Proposed Drought Response Equation Added to the Münch-Horwitz Theory of Phloem Transport [PDF]
Frontiers in Plant Science, 2020 Theoretical and experimental evidence for an effect of sieve tube turgor pressure on the mechanisms of phloem unloading near the root tips during moderate levels of drought stress is reviewed.
John D. Goeschl, Lifeng Han
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Determination of the phloem transport pathways and destination of photosynthates in soybean using autoradiography and fluorescent tracer imaging [PDF]
Plant Signaling & BehaviorVascular tissues transport water and nutrients in plants, with the phloem distributing photosynthates from source to sink. The direction of phloem transport is determined by the positional relationship between sources and sinks and by vascular ...
Ai Kaiho-Soma +4 more
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Phloem transport: Are you chaperoned? [PDF]
Current Biology, 1999 Long-distance transport via the vasculature in plants is critical for nutrient dissemination, as well as transport of growth regulatory molecules such as hormones. Evidence is now accumulating that protein and RNA molecules also use this transport pathway, possibly to regulate developmental and physiological processes.
Katrina M. Crawford, Patricia Zambryski
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Passive phloem loading and long-distance transport in a synthetic tree-on-a-chip [PDF]
, 2017 Vascular plants rely on differences of osmotic pressure to export sugars from regions of synthesis (mature leaves) to sugar sinks (roots, fruits). In this process, known as M\"unch pressure flow, the loading of sugars from photosynthetic cells to the ...
A Lang +36 more
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An update on phloem transport: a simple bulk flow under complex regulation [version 1; referees: 5 approved] [PDF]
F1000Research, 2017 The phloem plays a central role in transporting resources and signalling molecules from fully expanded leaves to provide precursors for, and to direct development of, heterotrophic organs located throughout the plant body.
Johannes Liesche, John Patrick
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Delineation of post-phloem assimilate transport pathway into developing caryopsis of Brachypodium distachyon [PDF]
Journal of Experimental Botany, 2019 The movement of assimilates from the sieve element/companion cell complex to sites of utilization has been examined in an extensive array of sinks possessing diverse anatomies. This work has been reviewed with respect to the pathways taken, the conductances and driving forces for movement along the pathways, and interaction between the apoplast and ...
Charles U. Solomon, Sinéad Drea
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Monitoring Phloem Unloading and Post-Phloem Transport by Microperfusion of Attached Wheat Grains [PDF]
Plant Physiology, 1994 Phloem unloading and post-phloem transport in developing wheat (Triticum aestivum L.) grains were investigated by perfusing the endosperm cavities of attached grains. Relative unloading ratio (RUR) and the rate of sucrose release into the endosperm cavity (SRR) were calculated, respectively, from 14C import and from sucrose washout from the cavity. RUR
Ning Wang, Donald B. Fisher
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