Abstract
The Aquilaria (Thymelaeaceae) tree is a well-known important agarwood-producing genus, which is endemic to the Indomalesia region. The genus is currently protected under CITES regulation and the IUCN Red List due to its heavy declination in the natural population in various sourcing countries. Derived from its precious non-wood fragrant products, the genus was given different names throughout the history until it was finalized in 1783. To date, there are 21 recognized Aquilaria species recorded, of which 13 are reportedly fragrant resin producers, and the status of the remaining eight Aquilaria species is yet to be investigated. Aquilaria is heavily exploited in the wild due to the destructive agarwood harvesting technique that requires hacking of the wood parts to induce agarwood production. Various conservation efforts have been carried out to avoid further destruction toward its gene pool. This includes introducing the species for cultivation and planting the trees in large plantations or home gardens, which further provide a sustainable agarwood production in the industry and indirectly contribute to the local economy. At present, an accurate classification of Aquilaria species is yet to be achieved; misidentification happens frequently, either genuinely because of lack of information and training or intentionally for business gains. In conclusion, a proper taxonomy and classification system are essential for conserving Aquilaria species genetic diversity and for identifying species origin of agarwood products aimed at international trade control.
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References
Anderson JAR. A checklist of the trees of Sarawak. Kuching: Forest Department, Sarawak; 1980.
Angiosperm Phylogeny Group. An ordinal classification for the families of flowering plants. Ann Mo Bot Gard. 1998;85(4):531–53.
Aroonrungsikul C, Karwsuwan U, Wongsatain W. Preliminary study of agarwood (Aquilaria crassna) fruit and seed storage. Proceedings of the 47th Kasetsart University Annual Conference, Kasetsart, 17–20 Mar 2009. Subject: Plants. Kasetsart University; 2009. p. 281–8.
Aroonrungsikul C, Wongsatain W. Seed quality of some cloning of agarwood (Aquilaria crassna) in Trad Province area. Proceedings of the 48th Kasetsart University Annual Conference, Kasetsart, 3–5 Mar 2010. Subject: Plants. Kasetsart University; 2010.
Browne FG. Forest trees of Sarawak and Brunei. Kuching: GPO; 1955. p. 370.
Compton JGS, Zich FA. Gyrinops ledermannii (Thymelaeaceae), being an agarwood-producing species prompts call for further examination of taxonomic implications in the generic delimitation between Aquilaria and Gyrinops. Flora Malesiana Bull. 2002;13(1):61–5.
CITES. Convention on International Trade in Endangered Species of Wild Fauna and Flora. Consideration of proposals for amendment of Appendices I and II- Aquilaria spp. and Gyrinops spp. Thirteenth meeting of the Conference of the Parties, Bangkok, 2–14 Oct 2004.
CITES. Convention on International Trade in Endangered Species of Wild Fauna and Flora. Resolutions of the Conference of the Parties. Ninth meeting of the Conference of the Parties, Fort Lauderdale, 7–18 Nov 1994.
Cronquist A. The evolution and classification of flowering plants. 2nd ed. Bronx: The New York Botanical Garden; 1988.
Domke W. Untersuchungen über die systematische und geographische Gliederung der Thymelaeaceen. Bibliotheca Botanische. 1934;27:1–151.
Don G. A general history of the dichlamydeous plants, vol. 2. London: J.G. and F. Rivington; 1832. 4.
Duke JA. Duke’s handbook of medicinal plants of the Bible. Boca Raton: CRC Press; 2007.
Eurlings MCM, Gravendeel B. TrnL-trnF sequence data imply paraphyly of Aquilaria and Gyrinops (Thymelaeaceae) and provide new perspectives for agarwood identification. Plant Syst Evol. 2005;254:1–12.
Flora Reipublicae Popularis Sinicae. 1991. [http://www.eflora.cn]. Access date 3 Aug 2015.
Gilg E. Thymelaeaceae. In: Engler A, Prantl K, editors. Die Natürlichen Pflanzenfamilien III, 6a. Leipzig: Engelman; 1894. p. 216–45.
Hailier JG. Beiträge zur Kenntnis der Thymelaeaceen und ihrer natüralichen Umgrenz-ungen. Meded Rijaks Herb. 1922;44:1–31.
Hamilton F. Chapter 11. A commentary on the second book of the herbarium amboinense. In: Memoirs of the Wernerian Natural History Society, vol. 6. Edinburgh/London: Adam Black and Longman; 1836. p. 268–333.
Herber BE. Pollen morphology of the Thymelaeaceae in relation to its taxonomy. Plant Syst Evol. 2002;232:107–21.
Herber BE. Thymelaeaceae. In: Kubitzki K, editor. The families and genera of vascular plants, Flowering plants dicotyledons (Malvales, Capparales and Non betalain Caryophyllales), vol. 5. Berlin: Springer-Verlag Berlin Heidelberg; 2003. p. 373–438.
Heywood VH. Flowering plants of the world. London: B. T. Batsford Ltd; 1993.
Hô PH. Aquilaria (Thymelaeaceae). In: Morat P, editor. Flora of Cambodia, Laos and Vietnam, vol. 26. Parisin: Museum National d'Histoire Naturelle; 1992. p. 51.
Hou D. Thymelaeaceae. In: Van Steenis CGGJ, editor. Flora malesiana series I, vol. 6. Netherlands: Wolters-Noordhoff Publishing; 1960. p. 1–48.
Hou D. Notes on some Asiatic species of Aquilaria (Thymelaceae). Blumea. 1964;12(2):285–8.
Hutchinson J. The genera of flowering plants, Dicotyledons, vol. 2. Oxford: Clarendon; 1967.
Ito M, Honda G. Taxonomical identification of agarwood-producing species. Nat Med. 2005;59:104–12.
Kiet LC, Kessler PJA, Eurlings MCM. A new species of Aquilaria (Thymelaeaceae) in Vietnam. Blumea J Plant Taxonomy Plant Geogr. 2005;50(1):135–41.
Lee SY, Weber J, Mohamed R. Genetic variation and molecular authentication of selected Aquilaria species from natural populations in Malaysia using RAPD and SCAR markers. Asian J Plant Sci. 2011;10(3):202–11.
Lee SY, Faridah-Hanum I, Mohamed R. Vegetative description of three Aquilaria (Thymelaeaceae) saplings in Malaysia. Pertanika J Trop Agric Sci. 2013;36(S):287–94.
Li T. Nguyen Cochinchina: southern Vietnam in the seventeenth and eighteenth centuries, vol. 23. Ithaca: Southeast Asia Program Publications; 1998.
Ng LT, Chang YS, Kadir AA. A review on agar (gaharu) producing Aquilaria species. J Trop Forest Prod. 1997;2(2):272–85.
Rautenbach M. Gnidia L. (Thymelaeaceae) is not monophyletic: taxonomic implications for Gnidia and its relatives in Thymelaeoideae, Doctoral dissertation, University of Johannesburg; 2008.
Ridley HN. Garu and chandan. In Royal Asiatic Society of Great Britain and Ireland Straits Branch. J Straits Branch R Asia Soc. 1901;35–36:73–82.
Royle JF. Illustrations of the botany and other branches of the natural history of the Himalayan mountains and of the flora of Cashmere, vol. 1. London: WM. H. Allen and Company; 1839.
Saikia P, Khan ML. Phenology, seed biology and seedling survival and growth of Aquilaria malaccensis: a highly exploited and red listed tree species of North East India. Indian Forester. 2012;138(3):289–95.
Schmidt LH, Nguyen XL. Aquilaria crassna Pierre. Seed Leaflet. 2004;100.
Society for the Diffusion of Useful Knowledge. The Penny Cyclopaedia of the Society for the Diffusion of Useful Knowledge, vol. 9. London: Charles Knight and Company; 1838.
Soehartono T, Newton AC. Reproductive ecology of Aquilaria spp. in Indonesia. For Ecol Manage. 2001;152(1):59–71.
Subasinghe SMCUP, Hettiarachchi DS, Rathnamalala E. Agarwood-type resin from Gyrinops walla Gaertn: a new discovery. J Trop Forestry Environ. 2012;2(2):43–8.
Tabin T, Shrivastava K. Factors affecting seed germination and establishment of critically endangered Aquilaria malaccensis (Thymelaeaceae). Asian J Plant Sci Res. 2014;4(6):41–6.
Takeuchi W, Golman M. The identity of Eaglewood (Gyrinops, Thymelaeaceae), a new economic resource for Papua New Guinea. SIDA Contributions Botany. 2002;20:261–7.
Tangmitcharoen S, Yongrattana P, Luangvirivasaeng V, Tasen W, Chantbep P, Saengtubtim S. Floral biology of Aquilaria crassna Pierre ex Lecomte. Thai J Forestry. 2008;27(2):1–13.
Tawan CS. Thymelaeaceae. In: Soepadmo E, Saw LG, Chung RCK, editors. Tree flora of Sabah and Sarawak, vol. 5. Kuala Lumpur: Forest Research Institute Malaysia; 2004. p. 133–484. 528 pp.
The Plant List. 2013. Version 1.1. [http://www.theplantlist.org/]. Access date 26 Jan 2016.
Tropicos. Missouri Botanical Garden. 2016. [http://www.tropicos.org]. Access date 27 Jan 2016.
Van der Bank M, Fay MF, Chase MW. Molecular phylogenetics of Thymelaeaceae with particular reference to African and Australian genera. Taxon. 2002;51(2):329–39.
Watt G. A dictionary of the economic products of India, vol. 1. Cambridge: Cambridge University Press; 2014.
Wyn LT, Anak NA. Wood for the trees: a review of the agarwood (Gaharu) trade in Malaysia. Traffic Southeast Asia; 2010.
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Lee, S.Y., Mohamed, R. (2016). The Origin and Domestication of Aquilaria, an Important Agarwood-Producing Genus. In: MOHAMED, R. (eds) Agarwood. Tropical Forestry. Springer, Singapore. https://doi.org/10.1007/978-981-10-0833-7_1
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