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<meta content="Brodribb, Tim J." name="eprints.creators_name" />
<meta content="Holbrook, N. M." name="eprints.creators_name" />
<meta content="Zwieniecki, Maciej A." name="eprints.creators_name" />
<meta content="Beatriz, Palma" name="eprints.creators_name" />
<meta content="Timothy.Brodribb@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-11-29 02:35:17" name="eprints.datestamp" />
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<meta content="Leaf hydraulic capacity in ferns, conifers and angiosperms:
impacts on photosynthetic maxima" name="eprints.title" />
<meta content="pub" name="eprints.ispublished" />
<meta content="270402" name="eprints.subjects" />
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<meta content="angiosperms, conifers, ferns, hydraulic conductance, leaf hydraulics,
photosynthesis, stomatal coordination." name="eprints.keywords" />
<meta content=""The definitive version is available at www.blackwell-synergy.com"
" name="eprints.note" />
<meta content="The hydraulic plumbing of vascular plant leaves varies considerably between major
plant groups both in the spatial organization of veins, as well as their anatomical
structure.
Five conifers, three ferns and 12 angiosperm trees were selected from tropical
and temperate forests to investigate whether the profound differences in foliar
morphology of these groups lead to correspondingly profound differences in leaf
hydraulic efficiency.
We found that angiosperm leaves spanned a range of leaf hydraulic conductance
from 3.9 to 36 mmol m
2
s
−
1
MPa
−
1
, whereas ferns (5.9–11.4 mmol m
−
2
s
−
1
MPa
−
1
)
and conifers (1.6–9.0 mmol m
−
2
s
−
1
MPa
−
1
) were uniformly less conductive to liquid
water. Leaf hydraulic conductance (K
leaf
) correlated strongly with stomatal conductance
indicating an internal leaf-level regulation of liquid and vapour conductances.
Photosynthetic capacity also increased with K
leaf
, however, it became saturated at
values of K
leaf
over 20 mmol m
−
2
s
−
1
MPa
−
1
.
The data suggest that vessels in the leaves of the angiosperms studied provide
them with the flexibility to produce highly conductive leaves with correspondingly
high photosynthetic capacities relative to tracheid-bearing species.
." name="eprints.abstract" />
<meta content="2005" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="New Phytologist" name="eprints.publication" />
<meta content="165" name="eprints.volume" />
<meta content="3" name="eprints.number" />
<meta content="839-846" name="eprints.pagerange" />
<meta content="10.1111/j.1469-8137.2004.01259.x" name="eprints.id_number" />
<meta content="TRUE" name="eprints.refereed" />
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<meta content="Aasamaa K, Sober A, Rahi M. 2001. Leaf anatomical characteristics
associated with shoot hydraulic conductance, stomatal conductance and
stomatal sensitivity to changes of leaf water status in temperate deciduous
trees. Australian Journal of Plant Physiology 28: 765–774.
Bilger W, Schreiber U, Buck M. 1996. Determination of the
quantum efficiency of photosystem II and non-photochemical quenching
of chlorophyll fluorescence in the field. Oecologia 102:
425–432.
Brodribb TJ, Feild TS. 2000. Stem hydraulic supply is linked to leaf
photosynthetic capacity: evidence from New Caledonian and Tasmanian
rainforests. Plant, Cell and Environment 23: 1381–1388.
Brodribb TJ, Holbrook NM. 2003a. Changes in leaf hydraulic conductance
during leaf shedding in seasonally dry tropical forest. New Phytologist 158:
295–303.
Brodribb TJ, Holbrook NM. 2003b. Stomatal closure during leaf
dehydration, correlation with other leaf physiological traits. Plant
Physiology 132: 2166–2173.
Brodribb TJ, Holbrook NM. 2004. Diurnal depression of leaf hydraulic
conductance in a tropical tree species. Plant Cell and Environment 27:
820–827.
Carlquist S, Schneider EL. 2001. Vessels in ferns: structural, ecological, and
evolutionary significance. American Journal of Botany 88: 1–13.
Cowan IR, Farquhar GD. 1977. Stomatal function in relation to leaf
metabolism and environment. Symposium Society of Experimental Biology
31: 471–505.
Feild TS, Brodribb TJ. 2001. Stem watr transport and freeze-thaw xylem
embolism in conifers and angiosperms in a Tasmanian treeline heath.
Oecologia 127: 314–320.
Genty B, Briantais J, Baker NR. 1989. The relationship between the
quantum yield of photosynthetic electron transport and quenching of
chlorophyll fluorescence. Biochimica Biophysica Acta 990: 87–92.
Hacke U, Sperry JS, Pitterman J. 2004. Analysis of circular bordered pit
function. II. Gymnosperm trachieds with torus margo pit membranes.
American Journal of Botany 91: 386–400.
Hacke U, Sperry JS, Pockman WT, Davis SD, McCulloch A. 2001. Trends
in wood density and structure are linked to the prevention of xylem
implosion by negative pressure. Oecologia 126: 457–461.
Hubbard RM, Ryan MG, Stiller V, Sperry JS. 2001. Stomatal conductance
and photosynthesis vary linearly with plant hydraulic conductance in
ponderosa pine. Plant Cell and Environment 24: 113–121.
Koide RT, Robichaux RH, Morse SR, Smith CM. 1991. Plant water status,
hydraulic resistance and capacitance. In: Pearcy RW, Ehleringer J,
Mooney HA, Rundel, PW eds. Plant Physiological Ecology. New York,
USA: Chapman & Hall, 161–183.
Meinzer FC. 2002. Co-ordination of vapour and liquid phase water
transport properties in plants. Plant Cell and Environment 25: 265–274.
Nardini A. 2001. Are sclerophylls and malacophylls hydraulically different?
Biologia Plantarum 44: 239–245.
Sack L, Cowan PD, Jaikumar N, Holbrook NM. 2003. The ‘hydrology’ of
leaves: co-ordination of structure and function in temperate woody
species. Plant Cell and Environment 26: 1343–1356.
Schulze E-D, Zwolfer H. 1994. Fluxes in ecosystem. In: Schulze E-D, ed.
Flux Control in Biological Systems: from Enzymes to Populations and
Ecosystems. San Diego, USA: Academic Press, 421–446.
Sperry JS, Hacke U. 2004. Analysis of circular bordered pit function. I.
Angiosperm vessels with homogeneous pit membranes. American Jounral
of Botany 91: 369–385.
Tyree MT, Hammel HT. 1972. The measurement of the turgor pressure and
the water relations of plants by the pressure-bomb technique. Journal of
Experimental Botany 23: 267–282.
Whitehead D, Jarvis PG, Warning RH. 1984. Stomatal conductance,
transpiration and resistance to water uptake in a Pinus sylvestris spacing
experiment. Canadian Journal of Forest Research 14: 692–700.
Wong SC, Cowan IR, Farquhar GD. 1979. Stomatal conductance correlates
with photosynthetic capacity. Nature 282: 424–426.
Zwieniecki MA, Melcher PJ, Boyce CK, Sack L, Holbrook NM. 2002.
Hydraulic architecture of leaf venation in Laurus nobilis L. Plant Cell and
Environment 25: 1445–1450." name="eprints.referencetext" />
<meta content="Brodribb, Tim J. and Holbrook, N. M. and Zwieniecki, Maciej A. and Beatriz, Palma (2005) Leaf hydraulic capacity in ferns, conifers and angiosperms: impacts on photosynthetic maxima. New Phytologist, 165 (3). pp. 839-846. ISSN 0028-646X" name="eprints.citation" />
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impacts on photosynthetic maxima" name="DC.title" />
<meta content="Brodribb, Tim J." name="DC.creator" />
<meta content="Holbrook, N. M." name="DC.creator" />
<meta content="Zwieniecki, Maciej A." name="DC.creator" />
<meta content="Beatriz, Palma" name="DC.creator" />
<meta content="270402 Plant Physiology" name="DC.subject" />
<meta content="270400 Botany" name="DC.subject" />
<meta content="The hydraulic plumbing of vascular plant leaves varies considerably between major
plant groups both in the spatial organization of veins, as well as their anatomical
structure.
Five conifers, three ferns and 12 angiosperm trees were selected from tropical
and temperate forests to investigate whether the profound differences in foliar
morphology of these groups lead to correspondingly profound differences in leaf
hydraulic efficiency.
We found that angiosperm leaves spanned a range of leaf hydraulic conductance
from 3.9 to 36 mmol m
2
s
−
1
MPa
−
1
, whereas ferns (5.9–11.4 mmol m
−
2
s
−
1
MPa
−
1
)
and conifers (1.6–9.0 mmol m
−
2
s
−
1
MPa
−
1
) were uniformly less conductive to liquid
water. Leaf hydraulic conductance (K
leaf
) correlated strongly with stomatal conductance
indicating an internal leaf-level regulation of liquid and vapour conductances.
Photosynthetic capacity also increased with K
leaf
, however, it became saturated at
values of K
leaf
over 20 mmol m
−
2
s
−
1
MPa
−
1
.
The data suggest that vessels in the leaves of the angiosperms studied provide
them with the flexibility to produce highly conductive leaves with correspondingly
high photosynthetic capacities relative to tracheid-bearing species.
." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Leaf hydraulic capacity in ferns, conifers and angiosperms: impacts on photosynthetic maxima</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Brodribb, Tim J.</span> and <span class="person_name">Holbrook, N. M.</span> and <span class="person_name">Zwieniecki, Maciej A.</span> and <span class="person_name">Beatriz, Palma</span> (2005) <xhtml:em>Leaf hydraulic capacity in ferns, conifers and angiosperms: impacts on photosynthetic maxima.</xhtml:em> New Phytologist, 165 (3). pp. 839-846. ISSN 0028-646X</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2583/1/brod__holb__zwein__plamal.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2583/1/brod__holb__zwein__plamal.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />239Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="3390" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1111/j.1469-8137.2004.01259.x">http://dx.doi.org/10.1111/j.1469-8137.2004.01259.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The hydraulic plumbing of vascular plant leaves varies considerably between major
plant groups both in the spatial organization of veins, as well as their anatomical
structure.
Five conifers, three ferns and 12 angiosperm trees were selected from tropical
and temperate forests to investigate whether the profound differences in foliar
morphology of these groups lead to correspondingly profound differences in leaf
hydraulic efficiency.
We found that angiosperm leaves spanned a range of leaf hydraulic conductance
from 3.9 to 36 mmol m
2
s
−
1
MPa
−
1
, whereas ferns (5.9–11.4 mmol m
−
2
s
−
1
MPa
−
1
)
and conifers (1.6–9.0 mmol m
−
2
s
−
1
MPa
−
1
) were uniformly less conductive to liquid
water. Leaf hydraulic conductance (K
leaf
) correlated strongly with stomatal conductance
indicating an internal leaf-level regulation of liquid and vapour conductances.
Photosynthetic capacity also increased with K
leaf
, however, it became saturated at
values of K
leaf
over 20 mmol m
−
2
s
−
1
MPa
−
1
.
The data suggest that vessels in the leaves of the angiosperms studied provide
them with the flexibility to produce highly conductive leaves with correspondingly
high photosynthetic capacities relative to tracheid-bearing species.
.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">"The definitive version is available at www.blackwell-synergy.com"
</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">angiosperms, conifers, ferns, hydraulic conductance, leaf hydraulics,
photosynthesis, stomatal coordination.</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270402.html">270000 Biological Sciences > 270400 Botany > 270402 Plant Physiology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270400.html">270000 Biological Sciences > 270400 Botany</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2583</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Scholarly Publications Librarian</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">29 Nov 2007 13:35</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2583;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2583">item control page</a></p>
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