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<title>UTas ePrints - Polyphenols in Acacia mangium and Acacia auriculiformis heartwood with reference to heart rot susceptibility</title>
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<meta content="Barry, K.M." name="eprints.creators_name" />
<meta content="Mihara, R." name="eprints.creators_name" />
<meta content="Davies, N.W." name="eprints.creators_name" />
<meta content="Mitsunaga, T." name="eprints.creators_name" />
<meta content="Mohammed, C.L." name="eprints.creators_name" />
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<meta content="Polyphenols in Acacia mangium and Acacia auriculiformis heartwood with reference to heart rot susceptibility " name="eprints.title" />
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<meta content="Flavanones - Proanthocyanidins - LCMS - Acacia spp. - Heart rot
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<meta content="The heartwood of Acacia mangium is vulnerable to heart rot and this is the first study to investigate the role of heartwood extractives in its susceptibility. Acacia auriculiformis was compared with A. mangium because it is rarely associated with heart rot. The heartwood extracts of both species were dominated by three flavonoids (2,3-trans-3,4′,7,8-tetrahydroxyflavanone, teracacidin, and 4′,7,8,-trihydroxyflavanone), which were purified and identified by nuclear magnetic resonance spectroscopy. The latter compound has not been previously reported in A. mangium and evidence for melacacidin is also newly reported. The mass spectrometric (MS) behavior of these compounds is given, for example teracacidin does not form molecular ions by either electrospray ionization or atmospheric-pressure chemical ionization. The nature of Acacia tannins was compared to quebracho tannin (composed of profisetinidins) using oxidative cleavage to enable MS detection but a negative reaction was obtained for both, which suggests the Acacia tannins may also be of the 5-deoxy proanthocyanidin type. The concentration of flavanones was less when A. mangium heartwood was decayed but the amount of proanthocyanidins was only slightly reduced and therefore these compounds may be more resistant to degradation by heart rot fungi. We found that the total phenol content of A. auriculiformis was about fivefold that of A. mangium, and, while preliminary, this provides evidence for a role played by phenolic extractives in heart rot resistance of these Acacia species. " name="eprints.abstract" />
<meta content="2005-12" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Journal of Wood Science" name="eprints.publication" />
<meta content="51" name="eprints.volume" />
<meta content="6" name="eprints.number" />
<meta content="615-621" name="eprints.pagerange" />
<meta content="10.1007/s10086-005-0707-x" name="eprints.id_number" />
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<meta content="1435-0211" name="eprints.issn" />
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<meta content="FAO (2000) Forestry: country profiles. http://www.fao.org/forestry/. Cited on May 3, 2004
2. Lee, SS, Teng, SY, Lim, MT, Razali, AK (1988) "Discoloration and heartrot of Acacia mangium Willd. – some preliminary results" J Trop For Sci 1: 170-177
3. Old KM, Lee SS, Sharma JK, Yuan ZQ (2000) A manual of diseases of tropical Acacias in Australia, South East Asia, and India. Centre for International Forestry Research, Jakarta, p 104
4. Barry, KM, Irianto, RSB, Santoso, E, Turjaman, M, Widyati, E, Sitepu, I, Mohammed, CL (2004) "Incidence of heart rot in harvest-age Acacia mangium in Indonesia, using a rapid survey method" For Ecol Manage 190: 273-280
5. Ito, S, Nanis, LH (1997) "Survey of heartrot on Acacia mangium in Sabah, Malaysia" JARQ 31: 65-71
6. Ito S (2002) The infection of heartrot and disease severity on several Acacia species in SAFODA plantations. Study Report of SAFODA-JICA Project, p 16
7. Mahmud, S, Lee, SS, Ahmad, HH (1993) "A survey of heartrot in some plantations of Acacia mangium Willd. in Sabah" J Trop For Sci 6: 37-47
8. Hillis, WE (1987) Heartwood and tree exudates, Springer, Berlin Heidelberg New York, pp 268
9. Taylor, AM, Gartner, BL, Morrell, JJ (2002) "Heartwood formation and natural durability – a review" Wood Fiber Sci 34: 587-611
10. Seigler, DS (2003) "Phytochemistry of Acacia – sensu lato" Biochem Syst Ecol 31: 845-873
11. Foo, LY (1984) "Condensed tannins: co-occurrence of procyanidins, prodelphinidins and profisetinidins in the heartwood of Acacia baileyana" Phytochemistry 12: 2915-2918
12. Pasch, H, Pizzi, A, Rode, K (2001) "MALDI-TOF mass spectrometry of polyflavonoid tannins" Polymer 42: 7531-7539
13. Tachi, M, Tange, J, Nagadomi, W, Suzuki, Y, Terashima, N, Yasuda, S (1989) "Manufacture of wood–cement boards. IV. Cement-hardening inhibitory components of the Malaysian fast-growing tree, Acacia mangium" Mokuzai Gakkaishi 35: 731-735
14. Pietarinen SP, Willför SM, Sjöholm RE, Holmbom BR (2004) Extractives in Acacia mangium and Acacia crassicarpa stemwood and knots. Proceedings of the 58th Appita Conference, 19–21 April 2004, Canberra, pp 557–563
15. Drewes, SE, Roux, DG (1966) "A new flavan-3,4-diol from Acacia auriculiformis by paper ionophoresis" Biochem J 98: 493-500
16. Nikles DG, Harwood CE, Robson KJ, Pomroy PC, Keenan RJ (1998) Management and use of ex situ genetic resources of some tropical Acacia species in Queensland. In: Turnbull JW, Crompton HR, Pinyopusarerk K (eds) Recent developments in acacia planting. ACIAR proceedings No. 82, Canberra, pp 184–196
17. Barry, KM, Davies, NW, Mohammed, CL (2002) "Effect of season and different fungi on phenolics in response to xylem wounding and inoculation in Eucalyptus nitens" For Path 32: 163-178
18. Mitsunaga, T, Doi, T, Kondo, Y, Abe, I (1998) "Color development of proanthocyanidins in vanillin–hydrochloric acid reaction" J Wood Sci 44: 125-130
19. Kawamoto, H, Mizutani, K, Nakatsubo, F (1997) "Binding nature and denaturation of protein during interaction with galloylglucose" Phytochemistry 43: 473-478
20. Barry, KM, Davies, NW, Mohammed, CL, Beadle, CL (2003) "Post-harvest chemical staining in blackwood (Acacia melanoxylon R. Br.)" Holzforschung 57: 230-236
21. Pascual-Teresa, S, Treutter, D, Rivas-Gonzalo, JC, Santos-Buelga, C (1998) "Analysis of flavanols in beverages by high-performance liquid chromatography with chemical reaction detection" J Agric Food Chem 46: 4209-4213
22. Hagerman A (2002) Tannin handbook http://www.users.muohio.edu/hagermae/. Cited on February 1, 2003
23. Schofield, P, Mbugua, DM, Pell, AN (2001) "Analysis of condensed tannins: a review" Anim Feed Sci Technol 91: 21-40
24. Lange, W, Hashim, R (2001) "The composition of the extractives from unaffected and heartrot-affected heartwood of Acacia mangium Willd" Holz Roh Werkst 5: 61-66
25. Jacquet, G, Matthews, S, Deprez, S, Pollet, B, Mila, I, Lapierre, C, Scalbert, A (1997) "Thiolysis and thioacidolysis: recent progress in the characterisation of phenolic polymers" Analusis 25: 26-29
26. Mihara, R, Barry, KM, Mohammed, CL, Mitsunaga, T (2005) "Comparison of antifungal and antioxidant activities of Acacia mangium and A. auriculiformis heartwood extracts" J Chem Ecol 31: 789-804
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<meta content="The heartwood of Acacia mangium is vulnerable to heart rot and this is the first study to investigate the role of heartwood extractives in its susceptibility. Acacia auriculiformis was compared with A. mangium because it is rarely associated with heart rot. The heartwood extracts of both species were dominated by three flavonoids (2,3-trans-3,4′,7,8-tetrahydroxyflavanone, teracacidin, and 4′,7,8,-trihydroxyflavanone), which were purified and identified by nuclear magnetic resonance spectroscopy. The latter compound has not been previously reported in A. mangium and evidence for melacacidin is also newly reported. The mass spectrometric (MS) behavior of these compounds is given, for example teracacidin does not form molecular ions by either electrospray ionization or atmospheric-pressure chemical ionization. The nature of Acacia tannins was compared to quebracho tannin (composed of profisetinidins) using oxidative cleavage to enable MS detection but a negative reaction was obtained for both, which suggests the Acacia tannins may also be of the 5-deoxy proanthocyanidin type. The concentration of flavanones was less when A. mangium heartwood was decayed but the amount of proanthocyanidins was only slightly reduced and therefore these compounds may be more resistant to degradation by heart rot fungi. We found that the total phenol content of A. auriculiformis was about fivefold that of A. mangium, and, while preliminary, this provides evidence for a role played by phenolic extractives in heart rot resistance of these Acacia species. " name="DC.description" />
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<h1 class="ep_tm_pagetitle">Polyphenols in Acacia mangium and Acacia auriculiformis heartwood with reference to heart rot susceptibility</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Barry, K.M.</span> and <span class="person_name">Mihara, R.</span> and <span class="person_name">Davies, N.W.</span> and <span class="person_name">Mitsunaga, T.</span> and <span class="person_name">Mohammed, C.L.</span> (2005) <xhtml:em>Polyphenols in Acacia mangium and Acacia auriculiformis heartwood with reference to heart rot susceptibility.</xhtml:em> Journal of Wood Science, 51 (6). pp. 615-621. ISSN 1435-0211</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/2102/1/Barry_et_al_JWS_2005.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/2102/1/Barry_et_al_JWS_2005.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />245Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="2640" 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/10.1007/s10086-005-0707-x">http://dx.doi.org/10.1007/s10086-005-0707-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 heartwood of Acacia mangium is vulnerable to heart rot and this is the first study to investigate the role of heartwood extractives in its susceptibility. Acacia auriculiformis was compared with A. mangium because it is rarely associated with heart rot. The heartwood extracts of both species were dominated by three flavonoids (2,3-trans-3,4′,7,8-tetrahydroxyflavanone, teracacidin, and 4′,7,8,-trihydroxyflavanone), which were purified and identified by nuclear magnetic resonance spectroscopy. The latter compound has not been previously reported in A. mangium and evidence for melacacidin is also newly reported. The mass spectrometric (MS) behavior of these compounds is given, for example teracacidin does not form molecular ions by either electrospray ionization or atmospheric-pressure chemical ionization. The nature of Acacia tannins was compared to quebracho tannin (composed of profisetinidins) using oxidative cleavage to enable MS detection but a negative reaction was obtained for both, which suggests the Acacia tannins may also be of the 5-deoxy proanthocyanidin type. The concentration of flavanones was less when A. mangium heartwood was decayed but the amount of proanthocyanidins was only slightly reduced and therefore these compounds may be more resistant to degradation by heart rot fungi. We found that the total phenol content of A. auriculiformis was about fivefold that of A. mangium, and, while preliminary, this provides evidence for a role played by phenolic extractives in heart rot resistance of these Acacia 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 original publication is available at www.springerlink.com</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Flavanones - Proanthocyanidins - LCMS - Acacia spp. - Heart rot
</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/300603.html">300000 Agricultural, Veterinary and Environmental Sciences > 300600 Forestry Sciences > 300603 Pests, Health and Diseases</a><br /><a href="http://eprints.utas.edu.au/view/subjects/250302.html">250000 Chemical Sciences > 250300 Organic Chemistry > 250302 Biological and Medical Chemistry</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2102</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 Karen Barry</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">11 Oct 2007 16:10</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=2102;">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=2102">item control page</a></p>
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