The mechanism of sugar export from long conifer needles

Research output: Contribution to journal › Journal article › Research › peer-review

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The mechanism of sugar export from long conifer needles. / Liesche, Johannes; Vincent, Christopher; Han, Xiaoyu; Zwieniecki, Maciej; Schulz, Alexander; Gao, Chen; Bravard, Rodrigue; Marker, Sean; Bohr, Tomas.

In: New Phytologist, Vol. 230, No. 5, 2021, p. 1911-1924.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Liesche, J, Vincent, C, Han, X, Zwieniecki, M, Schulz, A, Gao, C, Bravard, R, Marker, S & Bohr, T 2021, 'The mechanism of sugar export from long conifer needles', New Phytologist, vol. 230, no. 5, pp. 1911-1924. https://doi.org/10.1111/nph.17302

APA

Liesche, J., Vincent, C., Han, X., Zwieniecki, M., Schulz, A., Gao, C., Bravard, R., Marker, S., & Bohr, T. (2021). The mechanism of sugar export from long conifer needles. New Phytologist, 230(5), 1911-1924. https://doi.org/10.1111/nph.17302

Vancouver

Liesche J, Vincent C, Han X, Zwieniecki M, Schulz A, Gao C et al. The mechanism of sugar export from long conifer needles. New Phytologist. 2021;230(5):1911-1924. https://doi.org/10.1111/nph.17302

Author

Liesche, Johannes ; Vincent, Christopher ; Han, Xiaoyu ; Zwieniecki, Maciej ; Schulz, Alexander ; Gao, Chen ; Bravard, Rodrigue ; Marker, Sean ; Bohr, Tomas. / The mechanism of sugar export from long conifer needles. In: New Phytologist. 2021 ; Vol. 230, No. 5. pp. 1911-1924.

Bibtex

@article{55dac327cf33458cb09106254a43c69b,
title = "The mechanism of sugar export from long conifer needles",
abstract = "The green leaves of plants are optimised for carbon fixation and the production of sugars, which are used as central units of carbon and energy throughout the plant. However, there are physical limits to this optimisation that remain insufficiently understood. Here, quantitative anatomical analysis combined with mathematical modelling and sugar transport rate measurements were used to determine how effectively sugars are exported from the needle-shaped leaves of conifers in relation to leaf length. Mathematical modelling indicated that phloem anatomy constrains sugar export in long needles. However, we identified two mechanisms by which this constraint is overcome, even in needles longer than 20 cm: (1) the grouping of transport conduits, and (2) a shift in the diurnal rhythm of sugar metabolism and export in needle tips. The efficiency of sugar transport in the phloem can have a significant influence on leaf function. The constraints on sugar export described here for conifer needles are likely to also be relevant in other groups of plants, such as grasses and angiosperm trees.",
keywords = "carbohydrate allocation, conifers, gymnosperms, leaf anatomy, phloem loading, sugar transport",
author = "Johannes Liesche and Christopher Vincent and Xiaoyu Han and Maciej Zwieniecki and Alexander Schulz and Chen Gao and Rodrigue Bravard and Sean Marker and Tomas Bohr",
note = "Publisher Copyright: {\textcopyright} 2021 The Authors New Phytologist {\textcopyright} 2021 New Phytologist Foundation",
year = "2021",
doi = "10.1111/nph.17302",
language = "English",
volume = "230",
pages = "1911--1924",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Academic Press",
number = "5",

}

RIS

TY - JOUR

T1 - The mechanism of sugar export from long conifer needles

AU - Liesche, Johannes

AU - Vincent, Christopher

AU - Han, Xiaoyu

AU - Zwieniecki, Maciej

AU - Schulz, Alexander

AU - Gao, Chen

AU - Bravard, Rodrigue

AU - Marker, Sean

AU - Bohr, Tomas

N1 - Publisher Copyright: © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation

PY - 2021

Y1 - 2021

N2 - The green leaves of plants are optimised for carbon fixation and the production of sugars, which are used as central units of carbon and energy throughout the plant. However, there are physical limits to this optimisation that remain insufficiently understood. Here, quantitative anatomical analysis combined with mathematical modelling and sugar transport rate measurements were used to determine how effectively sugars are exported from the needle-shaped leaves of conifers in relation to leaf length. Mathematical modelling indicated that phloem anatomy constrains sugar export in long needles. However, we identified two mechanisms by which this constraint is overcome, even in needles longer than 20 cm: (1) the grouping of transport conduits, and (2) a shift in the diurnal rhythm of sugar metabolism and export in needle tips. The efficiency of sugar transport in the phloem can have a significant influence on leaf function. The constraints on sugar export described here for conifer needles are likely to also be relevant in other groups of plants, such as grasses and angiosperm trees.

AB - The green leaves of plants are optimised for carbon fixation and the production of sugars, which are used as central units of carbon and energy throughout the plant. However, there are physical limits to this optimisation that remain insufficiently understood. Here, quantitative anatomical analysis combined with mathematical modelling and sugar transport rate measurements were used to determine how effectively sugars are exported from the needle-shaped leaves of conifers in relation to leaf length. Mathematical modelling indicated that phloem anatomy constrains sugar export in long needles. However, we identified two mechanisms by which this constraint is overcome, even in needles longer than 20 cm: (1) the grouping of transport conduits, and (2) a shift in the diurnal rhythm of sugar metabolism and export in needle tips. The efficiency of sugar transport in the phloem can have a significant influence on leaf function. The constraints on sugar export described here for conifer needles are likely to also be relevant in other groups of plants, such as grasses and angiosperm trees.

KW - carbohydrate allocation

KW - conifers

KW - gymnosperms

KW - leaf anatomy

KW - phloem loading

KW - sugar transport

U2 - 10.1111/nph.17302

DO - 10.1111/nph.17302

M3 - Journal article

C2 - 33638181

AN - SCOPUS:85104138101

VL - 230

SP - 1911

EP - 1924

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 5

ER -

ID: 262861245