Modeling the hydrodynamics of Phloem sieve plates.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Modeling the hydrodynamics of Phloem sieve plates.. / Jensen, Kaare Hartvig; Mullendore, Daniel Leroy; Holbrook, Noel Michele; Bohr, Tomas; Knoblauch, Michael; Bruus, Henrik.

In: Frontiers in plant science., Vol. 3, 2012, p. 151.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Jensen, Kaare Hartvig; Mullendore, Daniel Leroy; Holbrook, Noel Michele; Bohr, Tomas; Knoblauch, Michael; Bruus, Henrik / Modeling the hydrodynamics of Phloem sieve plates..

In: Frontiers in plant science., Vol. 3, 2012, p. 151.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{ab338164b6954478856160bb5388e6fe,
title = "Modeling the hydrodynamics of Phloem sieve plates.",
author = "Jensen, {Kaare Hartvig} and Mullendore, {Daniel Leroy} and Holbrook, {Noel Michele} and Tomas Bohr and Michael Knoblauch and Henrik Bruus",
year = "2012",
volume = "3",
pages = "151",
journal = "Frontiers in plant science.",

}

RIS

TY - JOUR

T1 - Modeling the hydrodynamics of Phloem sieve plates.

A1 - Jensen,Kaare Hartvig

A1 - Mullendore,Daniel Leroy

A1 - Holbrook,Noel Michele

A1 - Bohr,Tomas

A1 - Knoblauch,Michael

A1 - Bruus,Henrik

AU - Jensen,Kaare Hartvig

AU - Mullendore,Daniel Leroy

AU - Holbrook,Noel Michele

AU - Bohr,Tomas

AU - Knoblauch,Michael

AU - Bruus,Henrik

PY - 2012

Y1 - 2012

N2 - Sieve plates have an enormous impact on the efficiency of the phloem vascular system of plants, responsible for the distribution of photosynthetic products. These thin plates, which separate neighboring phloem cells, are perforated by a large number of tiny sieve pores and are believed to play a crucial role in protecting the phloem sap from intruding animals by blocking flow when the phloem cell is damaged. The resistance to the flow of viscous sap in the phloem vascular system is strongly affected by the presence of the sieve plates, but the hydrodynamics of the flow through them remains poorly understood. We propose a theoretical model for quantifying the effect of sieve plates on the phloem in the plant, thus unifying and improving previous work in the field. Numerical simulations of the flow in real and idealized phloem channels verify our model, and anatomical data from 19 plant species are investigated. We find that the sieve plate resistance is correlated to the cell lumen resistance, and that the sieve plate and the lumen contribute almost equally to the total hydraulic resistance of the phloem translocation pathway.

AB - Sieve plates have an enormous impact on the efficiency of the phloem vascular system of plants, responsible for the distribution of photosynthetic products. These thin plates, which separate neighboring phloem cells, are perforated by a large number of tiny sieve pores and are believed to play a crucial role in protecting the phloem sap from intruding animals by blocking flow when the phloem cell is damaged. The resistance to the flow of viscous sap in the phloem vascular system is strongly affected by the presence of the sieve plates, but the hydrodynamics of the flow through them remains poorly understood. We propose a theoretical model for quantifying the effect of sieve plates on the phloem in the plant, thus unifying and improving previous work in the field. Numerical simulations of the flow in real and idealized phloem channels verify our model, and anatomical data from 19 plant species are investigated. We find that the sieve plate resistance is correlated to the cell lumen resistance, and that the sieve plate and the lumen contribute almost equally to the total hydraulic resistance of the phloem translocation pathway.

KW - biological fluid dynamics

KW - hydraulic resistance

KW - phloem

KW - sieve plate

KW - sugar transport in plants

JO - Frontiers in plant science.

JF - Frontiers in plant science.

VL - 3

SP - 151

ER -