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Curr Microbiol (2017) 74:460468
DOI 10.1007/s00284-016-1193-7
Received: 28 November 2016 / Accepted: 30 November 2016 / Published online: 21 February 2017 Springer Science+Business Media New York 2017
not keep stable in the later test, while AF4 and AF12 still functioned 1 year later. This study may lay a foundation for exploring the underlying mechanism of agarwood formation as well as fungi application in agarwood production.
Introduction
Agarwood is widely used in perfumery, traditional medicine and incense in ceremony [8, 9]. Actually, it is the resinous portion of the trunk and branches of Aquilaria,
Gonystulus, and Gyrinops species (Thymelaeaceae) [16, 18, 48], and cannot be produced in a healthy tree under a natural environment. Agarwood formation is only available under certain external factors, such as lightning strike, animal grazing, insect attack, or microbial invasion, typically around wounded or rotting parts of the trunk [3, 31, 36]. Because of the rareness and slow formation of wild agarwood, some articial agarwood-inducing methods have been developed, especially for the endangered agarwood-producing species. Most previous articial techniques focused on imitating natural agarwood formation using axes, knives and nails to wound tree trunks and branches [30]. Noticing the fungi infection that usually accompanies the physical wounding of trees, some researchers showed interest in promoting agarwood formation via fungi. The fungi-inoculation method was rst presented by Tunstall in 1929 [13], and then introduced into China in 1976. The research concerning Aquilaria callus has showed that some plant elicitors, such as jasmonic acid and methyl jasmonate, are capable of inducing the production of representative chemical components in agarwood [19, 21, 33]. Our laboratory has developed a signicant methodthe whole-tree agarwood-inducing technique (Agar-Wit) [43]. By this method, an agarwood inducer is inoculated into the xylem
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Web End = Agarwood Formation Induced byFermentation Liquid ofLasiodiplodia theobromae, theDominating Fungus inWounded Wood ofAquilaria sinensis
XuyuChen1,2 ChunSui1 YangyangLiu2 YunYang2 PeiweiLiu2 ZhengZhang1 JianheWei1,2
Abstract Agarwood is broadly used in incense and medicine. Traditionally, agarwood formation is induced by wounding the trunks and branches of some species of Aquilaria spp., including A. sinensis. As recently evidenced, some fungi or their fermentation liquid may have the potential of inducing agarwood formation. The present study aimed to analyze the fungi isolated from an agarwood-producing A. sinensis...