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Eka Novriyanti
Research Institute of Fiber Producing Forest
Agriculture, Biological Sciences & Forestry

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THE ROLE OF PHENOLICS IN AGARWOOD FORMATION OF Aquilaria crassna Pierre ex Lecomte AND Aquilaria microcarpa Baill TREES Eka Novriyanti; Erdy Santosa
Indonesian Journal of Forestry Research Vol 8, No 2 (2011): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2011.8.2.101-113

Abstract

Phenolic is well known as a secondary metabolite that plays an important role in plant defense system. Information about the fungi-impeded role of secondary metabolite is important in achieving success of artificial agarwood production, in that fungi induction imparted to the selected potential trees will be more effective and efficient. This research was aimed to investigate the correlation of agarwood tree phenolics in relation with the susceptibility of corresponding trees to Fusarium solani attack in the formation of agarwood and observing total phenolics content of Aquilaria crassna and Aquilaria microcarpa trees prior to inoculation. Twenty trees of A. microcarpa at Carita, a Forest Area for Special Function (FASF) and ten of A. crassna at Dramaga Research Forest were inoculated with isolate of F. solani in spiral pattern around their stem from ground level to about 1.5 m in height. Prior to inoculation, wood strips were taken off from the stem for total phenolics content. The result revealed that total phenolics content and infection area tended to have a negative correlation. Since the quantity of agarwood is highly related with the infection area, then trees with lower phenolics content should be selected for the more effective and efficient artificial agarwood production.
ANTI FUNGAL ACTIVITY OF WOOD EXTRACT OF Aquilaria crassna Pierre ex Lecomte AGAINST AGARWOOD-INDUCING FUNGI, Fusarium solani Eka Novriyanti; Erdy Santosa; Wasrin Syafii; Maman Turjaman; Irnayuli R. Sitepu
Indonesian Journal of Forestry Research Vol 7, No 2 (2010): Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2010.7.2.155-165

Abstract

This paper provided information regarding artificial agar wood production. Fungi are considered as biological agent for agarwood formation and agarwood is assumed as tree defense mechanism product. This research was aimed at investigating the anti fungal activity (AFA) of Aquilaria crassna, one of the agar wood-producing trees, against Fusarium solani in vitro. Aquilaria crassna wood mill was extracted by 70% ethanol to investigate the anti fungal activity. The result are Aquilariacrassnaexhibited low extractives content, which was only 2.0% (w/w) and a low anti fungal activity in vitro, especially for ethanol extract. However, further fractionation and bioassay showed that the most active component was likely in the ethyl-acetate soluble fraction that exhibited strong anti fungal activity (52.5%) at 4.0% of concentration.
Co-Authors Erdy Santosa Erdy Santosa Irnayuli R. Sitepu Maman Turjaman Wasrin Syafii