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Artificial production of agarwood oil in Aquilaria sp. by fungi: a review

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Abstract

The resinous part called agarwood of genus Aquilaria Lam has been exploited as a source of incense by mankind since time immemorial besides its medicinal properties. In global market purest oud/agarwood oil enjoys an exorbitant price tag owing to its mystical fragrance. This has led to over-exploitation of Aquilaria sp. at worldwide level. All the Aquilaria sp. are protected under CITES since 2002. Agarwood production is considered to have a pathological relation, secreted actively in response to foreign body infection as a means of defense mechanism in Aquilaria sp. In order to fulfill the demand for sustainable production of agarwood, chemical, physical and biological methods of inducing artificial infection for agarwood enhancement/production have been formulated. In addition, artificial inoculation of fungi has been used to induce agarwood in Aquilaria trees. In this review, we have discussed the success and limitations of various methods employed for agarwood stimulation and provided the analysis of investigation conducted by various researchers to ascertain the contributory role of fungi (endophytic–pathogenic–epiphytic) on agar formation and chemical composition of oil from artificially infected agarwood. Based on available literature, Xylaria sp., Lasiodiplodia sp., Colletotrichum sp. and Botryosphaeria sp. are promising fungal isolates which deserved to be further studied and scaled up to a commercial level for production of agarwood oil.

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Acknowledgements

Authors are thankful to Department of Biotechnology, Govt. of India for research Grant No. BT/PR1505/NDB/38/223/2011 for financial support.

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Chhipa, H., Chowdhary, K. & Kaushik, N. Artificial production of agarwood oil in Aquilaria sp. by fungi: a review. Phytochem Rev 16, 835–860 (2017). https://doi.org/10.1007/s11101-017-9492-6

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