Chemical Constituents of Agarwood Originating from the Endemic Genus <i>Aquilaria</i> Plants

Chen, Huaiqiong; Wei, Jianhe; Yang, Jun‐Shan; Zhang, Zheng; Yang, Yun; Gao, Zhi‐Hui; Sui, Chun; Gong, Bao

doi:10.1002/cbdv.201100077

Cited by 167 publications

(139 citation statements)

References 46 publications

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“…Agarwood formation is also thought to be an example of these phenomena (Zhao et al, 2005). Studies have shown that sesquiterpenes and phenylethyl chromone derivatives are the main fragrant compounds in agarwood (Chen et al, 2012). The sesquiterpenes found in agarwood are also produced as phytoalexins under stress (Kumeta and Ito, 2010).…”

Section: Discussionmentioning

confidence: 99%

Crude extract of Trichoderma elicits agarwood substances in cell suspensionculture of the tropical tree, Aquilaria malaccensis Lam.

Jayaraman¹,

Mohamed²

2015

Turk J Agric For

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Agarwood is the precious fragrant wood produced by the tropical tree Aquilaria, often after elicitation by wounding or fungal attack. In this study we established a cell suspension culture of A. malaccensis from leaf-derived callus and induced agarwood production in the culture using fungal elicitors. Elicitors were made from crude mycelial extracts of two fungal species from the genera Trichoderma and Lasidiplodia. The elicitors were added to the cell suspension culture, initiated with 2 g of fresh calli, at concentrations ranging from 2 to 10 mg L -1 . A light agarwood scent was detected from the suspension culture elicited with 8 mg L -1 Trichoderma extract. To increase scent intensity, cell suspension cultures were initiated from 2 to 8 g of calli and treated with 8 mg L -1 Trichoderma extract. The combination of 8 g of calli inoculum and 8 mg L -1 Trichoderma extract produced the most intense fragrance, one comparable to agarwood scent. The cell culture was harvested, extracted in methanol, and analyzed using GC-MS. Several important agarwood compounds were detected including 8-epi-.gama.-eudesmol, á-guaiene, and alloaromadendrene oxide-1. Trichoderma appeared to be a suitable inducer for agarwood production when used at an optimal concentration and in combination with a cell suspension culture of Aquilaria.

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Section: Discussionmentioning

confidence: 99%

Crude extract of Trichoderma elicits agarwood substances in cell suspensionculture of the tropical tree, Aquilaria malaccensis Lam.

Jayaraman¹,

Mohamed²

2015

Turk J Agric For

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“…HQ Wei proved chromone existence in agarwood known as 2-(2-phyenylethyl) and support that both sesquiterpene and chromone are the main active compound contribute to the fragrance [11]. The findings is strengthen by the earlier study by Ishihara and Uneyama who declared agarwood compounds consists of series of sesquiterpenes named as nor-ketoagarofuran, agarospirol, jinkoh-eremol and selina-3,11-dien-9-one [23], selina-3,11-dien-14-al , methyl selina-3,11-dien-14-oate,methyl 9-hydroxyselina-4,11-dien-14-oate, and a nor-sesquiterpens, 1,5-epoxy-nor-ketoguaiene [7,12,13].…”

Section: Agarwood Chemical Compoundmentioning

confidence: 89%

Investigation of Agarwood Compounds in Aquilaria malaccensis & Aquilaria Rostrata Chipwood by Using Solid Phase Microextraction

Ahmaed¹

2017

BJSTR

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“…Chromone only occurs in the resin-filled reaction wood and this is unique to agarwood (Chen et al 2012). Compared with sesquiterpenes in agarwood, chromone was easier to identify.…”

Section: Total Chromone Analysismentioning

confidence: 99%

Analysis of Gene Expression and Quality Of

Wu¹,

Liu²,

Jf³

et al. 2017

JTFS

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Agarwood, precious resinous trunks or branches derived from Aquilaria plants, is widely used in incense and perfume. However, due to its low yield and high production cost, a novel stimulating method is required to produce agarwood rapidly and effectively. We studied the biologically agarwood-inducing technique (Agar-Bit) that achieved high yield and qualified production. In this study the gene expressions and chemical compositions in agarwood obtained from Aquilaria sinensis trees using Agar-Bit were characterised. Mechanically-stimulated agarwood was used as control. Some characteristic synthase genes expressed degrees and times differently compared with control. For Agar-Bit group expressions of biological synthase genes were upregulated in 12 hours, then downregulated except CHS1 (chalcone synthase genes) after stimulation. For mechanically-stimulated agarwood they were upregulated in 24 hours, then downregulated except HMGR (3-hydroxy-3-mythlglutaryl-CoA reductase). The chemical compositions of agarwood by Agar-Bit and control were investigated by total chromone and essential oil contents. Therefore, we concluded that Agar-Bit can markedly motivate some characteristic synthase gene expressions and produce unique and identical chromone chemicals in agarwood. These findings may supplement information on agarwood formation theories and provide genetic varieties during the process.

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Chemical Constituents of Agarwood Originating from the Endemic Genus Aquilaria Plants

Cited by 167 publications

References 46 publications

Crude extract of Trichoderma elicits agarwood substances in cell suspensionculture of the tropical tree, Aquilaria malaccensis Lam.

Crude extract of Trichoderma elicits agarwood substances in cell suspensionculture of the tropical tree, Aquilaria malaccensis Lam.

Investigation of Agarwood Compounds in Aquilaria malaccensis & Aquilaria Rostrata Chipwood by Using Solid Phase Microextraction

Analysis of Gene Expression and Quality Of

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