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  5.     <title>UTas ePrints - Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves</title>
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  13.     <meta content="Carpenter, Raymond J." name="eprints.creators_name" />
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  30. <meta content="cuticular conductance; cuticular morphology; cuticular pores; Eidothea; Proteaceae; stomatal complex" name="eprints.keywords" />
  31. <meta content="The definitive version is available online at http://www.amjbot.org/cgi/content/abstract/94/8/1282" name="eprints.note" />
  32. <meta content="Ubiquitous, large diameter pores have not previously been adequately demonstrated to occur in leaf cuticles. Here we show conclusively that such structures occur in Eidothea zoexylocarya, a rainforest tree species of Proteaceae restricted to the Australian Wet Tropics. The pores are abundant, large-diameter apertures (~1 um), that extend perpendicularly most of the way through the cuticle from the inside. They occur on both sides of the leaf, but are absent from the cuticle associated with stomatal complexes on the abaxial side. No such pores were found in any other species, including the only other species of Eidothea, E. hardeniana from New South Wales, and other species that have previously been purported to possess cuticular pores. To determine whether these pores made the cuticles more leaky to water vapor, we measured astomatous cuticular conductances to water vapor for E. zoexylocarya and seven other Proteaceae species of the Wet Tropics. Cuticular conductance for E. zoexylocarya was relatively low, indicating that the prominent pores do not increase conductance. The function of the pores is currently obscure, but the presence of both pores and an adaxial hypodermis in E. zoexylocarya but not E. hardeniana suggests evolution in response to
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  36. <meta content="American Journal of Botany" name="eprints.publication" />
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  43. <meta content="ALVIN, K. L., AND M. C. BOULTER. 1974. A controlled method of
  44. comparative study of taxodiaceous cuticles. Botanical Journal of the
  45. Linnean Society 69: 277-286.
  46. BEYER, B., S. LAU, AND M. KNOCHE. 2005. Studies on water transport
  47. through the sweet cherry fruit surface. IX. Comparing permeability in
  48. water uptake and transpiration. Planta 220: 474-485.
  49. BOYER, J. S., S. C. WONG, AND G. D. FARQUHAR. 1997. CO2 and water
  50. vapor exchange across leaf cuticle (epidermis) at various water
  51. potentials. Plant Physiology 114: 185-191.
  52. BUCKLEY, T. N. 2005. The control of stomata by water balance. New
  53. Phytologist 168: 275-292.
  54. BURGESS, S. S. O., AND T. E. DAWSON. 2004. The contribution of fog to the
  55. water relations of Sequoia sempervirens (D. Don): foliar uptake and
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  57. 1034.
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  60. of the Linnean Society 116: 249-303.
  61. CUNNINGHAM, S. C. 2004. Photosynthetic responses to vapour pressure
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  119. Blackwell Publishing, Oxford, UK.
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  128. aqueous pores in stomatous cuticles of Vicia faba leaves. Planta 221:
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  153. London, B 8: 105-204.
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  157. between the biochemistry of photosynthesis and the gas exchange of
  158. leaves. Planta 153: 376-387.
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  160. change. In A. Keast [ed.], Ecological biogeography of Australia, 607-
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  162. WESTON, P. H., AND R. M. KOOYMAN. 2002. Systematics of Eidothea
  163. (Proteaceae), with the description of a new species, E. hardeniana,
  164. from the Nightcap Range, north-eastern New South Wales. Telopea 9:
  165. 821-832.
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  167. of Sloanea woollsii, and Australian subtropical rainforest tree.
  168. Australian Journal of Botany 43: 157-167." name="eprints.referencetext" />
  169. <meta content="Carpenter, Raymond J. and Jordan, Gregory J. and Leigh, Andrea and Brodribb, Tim J. (2007) Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves. American Journal of Botany, 94 (8). pp. 1282-1288." name="eprints.citation" />
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  294.     <h1 class="ep_tm_pagetitle">Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves</h1>
  295.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Carpenter, Raymond J.</span> and <span class="person_name">Jordan, Gregory J.</span> and <span class="person_name">Leigh, Andrea</span> and <span class="person_name">Brodribb, Tim J.</span> (2007) <xhtml:em>Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves.</xhtml:em> American Journal of Botany, 94 (8). pp. 1282-1288.</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/1712/1/eidothea.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/1712/1/eidothea.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />639Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="2211" 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://www.amjbot.org/">http://www.amjbot.org/</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Ubiquitous, large diameter pores have not previously been adequately demonstrated to occur in leaf cuticles. Here we show conclusively that such structures occur in Eidothea zoexylocarya, a rainforest tree species of Proteaceae restricted to the Australian Wet Tropics. The pores are abundant, large-diameter apertures (~1 um), that extend perpendicularly most of the way through the cuticle from the inside. They occur on both sides of the leaf, but are absent from the cuticle associated with stomatal complexes on the abaxial side. No such pores were found in any other species, including the only other species of Eidothea, E. hardeniana from New South Wales, and other species that have previously been purported to possess cuticular pores. To determine whether these pores made the cuticles more leaky to water vapor, we measured astomatous cuticular conductances to water vapor for E. zoexylocarya and seven other Proteaceae species of the Wet Tropics. Cuticular conductance for E. zoexylocarya was relatively low, indicating that the prominent pores do not increase conductance. The function of the pores is currently obscure, but the presence of both pores and an adaxial hypodermis in E. zoexylocarya but not E. hardeniana suggests evolution in response to&#13;
  296. greater environmental stresses in the tropics.</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 online at http://www.amjbot.org/cgi/content/abstract/94/8/1282</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">cuticular conductance; cuticular morphology; cuticular pores; Eidothea; Proteaceae; stomatal complex</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">1712</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 11:08</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=1712;">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=1712">item control page</a></p>
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