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  5.     <title>UTas ePrints - Leaf Maximum Photosynthetic Rate and Venation Are Linked by Hydraulics</title>
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  13.     <meta content="Brodribb, Tim J." name="eprints.creators_name" />
  14. <meta content="Feild, Taylor S." name="eprints.creators_name" />
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  29. <meta content="vein density, xylem, tracheids, water relations" name="eprints.keywords" />
  30. <meta content="Leaf veins are almost ubiquitous across the range of terrestrial plant diversity, yet their influence on leaf photosynthetic
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  32. limiters of the hydraulic and photosynthetic proficiency of any leaf. Following the logic that leaf veins evolved to bypass inefficient water transport through living mesophyll tissue, we examined the hydraulic pathway beyond the distal ends of the vein system as a possible limiter of water transport in leaves. We tested a mechanistic hypothesis that the length of this final traverse, as water moves from veins across the mesophyll to where it evaporates from the leaf, governs the hydraulic efficiency and photosynthetic carbon assimilation of any leaf. Sampling 43 species across the breadth of plant diversity from mosses to flowering plants, we found that the post-vein traverse as determined by characters such as vein density, leaf thickness, and cell
  33. shape, was strongly correlated with the hydraulic conductivity and maximum photosynthetic rate of foliage. The shape of this correlation provided clear support for the a priori hypothesis that vein positioning limits photosynthesis via its influence on
  34. leaf hydraulic efficiency." name="eprints.abstract" />
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  44. <meta content="Aasamaa K, Sober A, Rahi M (2001) Leaf anatomical characteristics
  45. associated with shoot hydraulic conductance, stomatal conductance
  46. and stomatal sensitivity to changes of leaf water status in temperate
  47. deciduous trees. Aust J Plant Physiol 28: 765–774
  48. Amiard W, Mueh KE, Demmig-Adams B, Ebbert V, Turgeon R, Adams
  49. WW (2005) Anatomical and photosynthetic acclimation to the light
  50. environment in species with differing mechanisms of phloem loading.
  51. Proc Natl Acad Sci USA 102: 12968–12973
  52. Beerling DJ (2005) Leaf evolution: gases, genes and geochemistry. Ann Bot
  53. (Lond) 96: 345–352
  54. Boyce CK (2005) Patterns of segregation and convergence in the evolution
  55. of fern and seed plant leaf morphologies. Paleobiology 31:
  56. 117–140
  57. Boyce CK, Cody GD, Feser M, Jacobsen C, Knoll AH, Wirick S (2002)
  58. Organic chemical differentiation within fossil plant cell walls detected
  59. with x-ray spectromicroscopy. Geology 30: 1039–1042
  60. Boyer JS (1985) Water transport. Annu Rev Plant Physiol 36: 473–516
  61. Brodribb TJ, Holbrook NM (2005) Water stress deforms tracheids
  62. peripheral to the leaf vein of a tropical conifer. Plant Physiol 137:
  63. 1139–1146
  64. Brodribb TJ, Holbrook NM (2006) Declining hydraulic efficiency as
  65. transpiring leaves desiccate: two types of response. Plant Cell Environ
  66. 29: 2205–2215
  67. Brodribb TJ, Holbrook NM, Zwieniecki MA, Palma B (2005) Leaf hydraulic
  68. capacity in ferns, conifers and angiosperms: impacts on photosynthetic
  69. maxima. New Phytol 165: 839–846
  70. Carlquist S (1975) Ecological Strategies of Xylem Evolution. University of
  71. California Press, Berkeley, CA
  72. Cochard H, Venisse JS, Barigah TS, Brunel N, Herbette S, Guilliot A,
  73. Tyree MT, Sakr S (2007) Putative role of aquaporins in variable hydraulic
  74. conductance of leaves in response to light. Plant Physiol 143:
  75. 122–133
  76. Cowan IR (1972) An electrical analogue of evaporation from, and flow of
  77. water in plants. Planta 106: 221–226
  78. Cowan IR, Farquhar GD (1977) Stomatal function in relation to leaf
  79. metabolism and environment. Symp Soc Exp Biol 31: 471–505
  80. Fleming AJ (2005) The control of leaf development. New Phytol
  81. 166: 9–20
  82. Franks PJ, Farquhar GD (1999) A relationship between humidity response,
  83. growth form and photosynthetic operating point in C3 plants. Plant Cell
  84. Environ 22: 1337–1349
  85. Frensch J, Steudle E (1989) Axial and radial hydraulic resistance to roots of
  86. maize (Zea mays L.). Plant Physiol 91: 719–726
  87. Givnish T (2003) Adaptive significance of evergreen vs. deciduous leaves:
  88. solving the triple paradox. Silva Fennica 36: 703–743
  89. Givnish TJ (1987) Comparative-studies of leaf form—assessing the relative
  90. roles of selective pressures and phylogenetic constraints. New Phytol
  91. 106: 131–160
  92. Griffith MM (1957) Folar ontogeny of Podocarpus macrophyllus with special
  93. reference to transfusion tissue. Am J Bot 44: 705–715
  94. Hu YS, Yao BJ (1981) Transfusion tissue in gymnosperm leaves. Bot J Linn
  95. Soc 83: 263–272
  96. Kang J, Dengler N (2004) Vein pattern development in adult leaves of
  97. Arabidopsis thaliana. Int J Plant Sci 165: 231–242
  98. Kenrick P, Crane PR (1991) Water-conducting cells in early fossil land
  99. plants: implications for the early evolution of tracheophytes. Bot Gaz
  100. 152: 335–356
  101. Korson L, Drosthan W, Millero FJ (1969) Viscosity of water at various
  102. temperatures. J Phys Chem 73: 34–38
  103. Larcher W (1995) Physiological Plant Ecology, Ed 3. Springer-Verlag,
  104. Berlin
  105. Nardini A, Salleo S (2005) Water stress-induced modifications on leaf
  106. hydraulic architecture in sunflower: co-ordination with gas exchange.
  107. J Exp Bot 56: 3093–3101
  108. Niklas KJ (1985) The evolution of tracheid diameter in early vascular
  109. plants and its implications on the hydraulic conductance of the primary
  110. xylem strand. Evolution Int J Org Evolution 39: 1110–1122
  111. Osborne CP, Beerling DJ, Lomax BH, Chaloner WG (2004) Biophysical
  112. constraints on the origin of leaves inferred from the fossil record. Proc
  113. Natl Acad Sci USA 101: 10360–10362
  114. Passioura JB (1988)Water transport in and to roots. Annu Rev Plant Physiol
  115. 39: 245–265
  116. Pearcy RW (1990) Sunflecks and photosynthesis in plant canopies. Annu
  117. Rev Plant Physiol Plant Mol Biol 41: 421–453
  118. Royer DL, Wilf P, Janesko DA, Kowalski EA, Dilcher DL (2005) Correlations
  119. of climate and plant ecology to leaf size and shape: potential
  120. proxies for the fossil record. Am J Bot 92: 1141–1151
  121. Sack L, Cowan PD, Jaikumar N, Holbrook NM (2003) The ‘‘hydrology’’ of
  122. leaves: co-ordination of structure and function in temperate woody
  123. species. Plant Cell Environ 26: 1343–1356
  124. Sack L, Frole K (2006) Leaf structural diversity is related to hydraulic
  125. capacity in tropical rainforest trees. Ecology 87: 483–491
  126. Sack L, Holbrook NM (2006) Leaf hydraulics. Annu Rev Plant Physiol
  127. Plant Mol Biol 57: 361–381
  128. Sack L, Melcher PJ, Zwieniecki MA, Holbrook NM (2002) The hydraulic
  129. conductance of the angiosperm leaf lamina: a comparison of three
  130. measurement methods. J Exp Bot 53: 2177–2184
  131. Sack L, Tyree MT, Holbrook NM (2005) Leaf hydraulic architecture
  132. correlates with regenreration irradiance in tropical rainforest trees.
  133. New Phytol 167: 403–413
  134. Santiago LS, Goldstein G, Meinzer FC, Fisher JB, Machado K, Woodruff
  135. D, Jones T (2004) Leaf photosynthetic traits scale with hydraulic
  136. conductivity and wood density in Panamanian forest canopy trees.
  137. Oecologia 140: 543–550
  138. Scarpella E, Marcos D, Friml J, Berleth T (2006) Control of leaf vascular
  139. patterning by polar auxin transport. Genes Dev 20: 1015–1027
  140. Sieburth LE, Deyholos MK (2006) Vascular development: the long and
  141. winding road. Curr Opin Plant Biol 9: 48–54
  142. Smith WK, Vogelmann TC, DeLucia EH, Bell DT, Shepherd KA (1997)
  143. Leaf form and photosynthesis. Bioscience 47: 785–793
  144. Sperry JS (2003) Evolution of water transport and xylem structure. Int J
  145. Plant Sci 164: S115–S127
  146. Steudle E (1994) Water transport across roots. Plant Soil 167: 79–90
  147. Terashima I, Miyazawa SI, Hanba YT (2001) Why are sun leaves thicker
  148. than shade leaves? Consideration based on analyses of CO2 diffusion in
  149. the leaf. J Plant Res 114: 93–105
  150. Volk T (1989) Rise of angiosperms as a factor in long-term climatic cooling.
  151. Geology 17: 107–110
  152. Wing SL, Greenwood DR (1993) Fossils and fossil climate—the case for
  153. equable continental interiors in the eocene. Philos Trans R Soc Lond B
  154. Biol Sci 341: 243–252
  155. Zwieniecki MA, Brodribb TJ, Holbrook NM (2007) Hydraulic design
  156. of leaves: insights from rehydration kinetics. Plant Cell Environ
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  170. limiters of the hydraulic and photosynthetic proficiency of any leaf. Following the logic that leaf veins evolved to bypass inefficient water transport through living mesophyll tissue, we examined the hydraulic pathway beyond the distal ends of the vein system as a possible limiter of water transport in leaves. We tested a mechanistic hypothesis that the length of this final traverse, as water moves from veins across the mesophyll to where it evaporates from the leaf, governs the hydraulic efficiency and photosynthetic carbon assimilation of any leaf. Sampling 43 species across the breadth of plant diversity from mosses to flowering plants, we found that the post-vein traverse as determined by characters such as vein density, leaf thickness, and cell
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  286.     <h1 class="ep_tm_pagetitle">Leaf Maximum Photosynthetic Rate and Venation Are Linked by Hydraulics</h1>
  287.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Brodribb, Tim J.</span> and <span class="person_name">Feild, Taylor S.</span> and <span class="person_name">Jordan, Gregory J.</span> (2007) <xhtml:em>Leaf Maximum Photosynthetic Rate and Venation Are Linked by Hydraulics.</xhtml:em> Plant Physiology, 144 . pp. 1890-1898.</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/1711/2/1890.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/1711/2/1890.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />682Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="2210" name="docid" accept-charset="utf-8" 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://www.plantphysiol.org/cgi/doi/10.1104/pp.107.101352">http://www.plantphysiol.org/cgi/doi/10.1104/pp.107.101352</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Leaf veins are almost ubiquitous across the range of terrestrial plant diversity, yet their influence on leaf photosynthetic&#13;
  288. performance remains uncertain. We show here that specific physical attributes of the vascular plumbing network are key&#13;
  289. limiters of the hydraulic and photosynthetic proficiency of any leaf. Following the logic that leaf veins evolved to bypass inefficient water transport through living mesophyll tissue, we examined the hydraulic pathway beyond the distal ends of the vein system as a possible limiter of water transport in leaves. We tested a mechanistic hypothesis that the length of this final traverse, as water moves from veins across the mesophyll to where it evaporates from the leaf, governs the hydraulic efficiency and photosynthetic carbon assimilation of any leaf. Sampling 43 species across the breadth of plant diversity from mosses to flowering plants, we found that the post-vein traverse as determined by characters such as vein density, leaf thickness, and cell&#13;
  290. shape, was strongly correlated with the hydraulic conductivity and maximum photosynthetic rate of foliage. The shape of this correlation provided clear support for the a priori hypothesis that vein positioning limits photosynthesis via its influence on&#13;
  291. leaf hydraulic efficiency.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><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">Keywords:</th><td valign="top" class="ep_row">vein density, xylem, tracheids, water relations</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 &gt; 270400 Botany &gt; 270402 Plant Physiology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270401.html">270000 Biological Sciences &gt; 270400 Botany &gt; 270401 Plant Systematics, Taxonomy and Phylogeny</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1711</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">dr gregory j jordan</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">30 Aug 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">11 Feb 2008 11:09</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=1711;">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&amp;eprintid=1711">item control page</a></p>
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