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<title>UTas ePrints - Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves</title>
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<meta content="Carpenter, Raymond J." name="eprints.creators_name" />
<meta content="Jordan, Gregory J." name="eprints.creators_name" />
<meta content="Leigh, Andrea" name="eprints.creators_name" />
<meta content="Brodribb, Tim J." name="eprints.creators_name" />
<meta content="raymond.carpenter@adelaide.edu.au" name="eprints.creators_id" />
<meta content="greg.jordan@utas.edu.au" name="eprints.creators_id" />
<meta content="andrea.leigh@uts.edu.au" name="eprints.creators_id" />
<meta content="timothyb@utas.edu.au" name="eprints.creators_id" />
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<meta content="2007-08-30" name="eprints.datestamp" />
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<meta content="Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves" name="eprints.title" />
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<meta content="cuticular conductance; cuticular morphology; cuticular pores; Eidothea; Proteaceae; stomatal complex" name="eprints.keywords" />
<meta content="The definitive version is available online at http://www.amjbot.org/cgi/content/abstract/94/8/1282" name="eprints.note" />
<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
greater environmental stresses in the tropics." name="eprints.abstract" />
<meta content="2007-08" name="eprints.date" />
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<meta content="ALVIN, K. L., AND M. C. BOULTER. 1974. A controlled method of
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Australian Journal of Botany 43: 157-167." name="eprints.referencetext" />
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<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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<h1 class="ep_tm_pagetitle">Giant cuticular pores in Eidothea zoexylocarya (Proteaceae) leaves</h1>
<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
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 > 270400 Botany > 270402 Plant Physiology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270401.html">270000 Biological Sciences > 270400 Botany > 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&eprintid=1712">item control page</a></p>
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