Hydraulic design of pine needles: One-dimensional optimization for single-vein leaves

Zwieniecki, MA; Stone, HA; Leigh, A; Boyce, CK; Holbrook, NM

Hydraulic design of pine needles: One-dimensional optimization for single-vein leaves

Zwieniecki, MA Stone, HA Leigh, A

Boyce, CK Holbrook, NM

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Publication Type:: Journal Article
Citation:: Plant, Cell and Environment, 2006, 29 (5), pp. 803 - 809
Issue Date:: 2006-05-01

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Field	Value	Language
dc.contributor.author	Zwieniecki, MA	en_US
dc.contributor.author	Stone, HA	en_US
dc.contributor.author	Leigh, A https://orcid.org/0000-0003-3568-2606	en_US
dc.contributor.author	Boyce, CK	en_US
dc.contributor.author	Holbrook, NM	en_US
dc.date.issued	2006-05-01	en_US
dc.identifier.citation	Plant, Cell and Environment, 2006, 29 (5), pp. 803 - 809	en_US
dc.identifier.issn	0140-7791	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8788
dc.description.abstract	Single-vein leaves have the simplest hydraulic design possible, yet even this linear water delivery system can be modulated to improve physiological performance. We determined the optimal distribution of transport capacity that minimizes pressure drop per given investment in xylem permeability along the needle for a given length without a change in total water delivery, or maximizes needle length for a given pressure difference between petiole and needle tip. This theory was tested by comparative analysis of the hydraulic design of three pine species that differ in the length of their needles [Pinus palustris (Engl.) Miller, ∼50 cm; Pinus ponderosa Lawson & Lawson, ∼20 cm and Pinus rigida Miller, ∼5 cm]. In all three species, the distribution of hydraulic permeability was similar to that predicted by the optimum solution. The needles of P. palustris showed an almost perfect match between predicted and actual hydraulic optimum solution, providing evidence that vein design is a significant factor in the hydraulic design of pine leaves. © 2005 Blackwell Publishing Ltd.	en_US
dc.relation.ispartof	Plant, Cell and Environment	en_US
dc.relation.isbasedon	10.1111/j.1365-3040.2005.01448.x	en_US
dc.subject.classification	Plant Biology & Botany	en_US
dc.subject.mesh	Pinus	en_US
dc.subject.mesh	Plant Leaves	en_US
dc.subject.mesh	Water	en_US
dc.title	Hydraulic design of pine needles: One-dimensional optimization for single-vein leaves	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	29	en_US
utslib.for	060702 Plant Cell and Molecular Biology	en_US
utslib.for	06 Biological Sciences	en_US
utslib.for	07 Agricultural and Veterinary Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	closed_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	29	en_US

Abstract:

Single-vein leaves have the simplest hydraulic design possible, yet even this linear water delivery system can be modulated to improve physiological performance. We determined the optimal distribution of transport capacity that minimizes pressure drop per given investment in xylem permeability along the needle for a given length without a change in total water delivery, or maximizes needle length for a given pressure difference between petiole and needle tip. This theory was tested by comparative analysis of the hydraulic design of three pine species that differ in the length of their needles [Pinus palustris (Engl.) Miller, ∼50 cm; Pinus ponderosa Lawson & Lawson, ∼20 cm and Pinus rigida Miller, ∼5 cm]. In all three species, the distribution of hydraulic permeability was similar to that predicted by the optimum solution. The needles of P. palustris showed an almost perfect match between predicted and actual hydraulic optimum solution, providing evidence that vein design is a significant factor in the hydraulic design of pine leaves. © 2005 Blackwell Publishing Ltd.

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http://hdl.handle.net/10453/8788