Aimi Wahidah, Aminan and Siti Zulaiha, Zainol and Saiful Nizam, Tajuddin and Ramli, Aizi Nor Mazila (2021) Isolation and cloning of sesquiterpene synthases (amgs3 and amgs4) and chalcone synthase (amchs) from aquilaria malaccensis responsible for agarwood formation. Malaysian Journal of Chemistry, 23 (2). pp. 110-114. ISSN 2550-1658. (Published)
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Abstract
Sesquiterpene and phenylethyl chromone, two types of agarwood marker compounds, have been extensively studied. However, genetic studies of agarwood (Aquilaria malaccensis) are still scarce. This study describes the isolation and cloning of sesquiterpene synthase genes (AmGS3 and AmGS4), and chalcone synthase gene (AmCHS) identified from A. malaccensis transcriptome data mining. The sizes of AmGS3, AmGS4, and AmCHS were 1162, 1466, and 1623 bp in length. The open reading frames (ORFs) of AmGS3, AmGS4, and AmCHS detected were 948, 1047, and 1185 bp, with a polypeptide length of 348, 315, and 394 amino acids. The full-length sequences of AmGS3, AmGS4, and AmCHS were successfully isolated from the infected stem of A. malaccensis, amplified via polymerase chain reaction (PCR), cloned into the pGEM-T Easy Vector, and transformed into prepared Escherichia coli DH5a competent cells. The sequencing result and BLASTn analysis revealed that the ORFs of AmGS3 and AmGS4 are highly homologous to putative delta-guaiene synthase from Aquilaria sinensis, with a similarity of 98.1% and 98.08% respectively, while the ORF of AmCHS is highly homologous to chalcone synthase from A. sinensis with a similarity of 99.24%. These results demonstrated the successful isolation of sesquiterpene synthase and chalcone synthase genes that may play important roles in forming agarwood sesquiterpene and phenylethyl chromone in A. malaccensis.
| Item Type: | Article |
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| Uncontrolled Keywords: | Aquilaria malaccensis; agarwood; sesquiterpene synthase; chalcone synthase |
| Subjects: | Q Science > Q Science (General) |
| Faculty/Division: | Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies |
| Depositing User: | Dr. Aizi Nor Mazila Ramli |
| Date Deposited: | 12 May 2022 07:27 |
| Last Modified: | 12 May 2022 07:27 |
| URI: | http://umpir.ump.edu.my/id/eprint/34068 |
| Download Statistic: | View Download Statistics |
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