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Wang S, He JN, Wang YJ, Zhao WY, Yang QX, Wang YN, Zhang Y, Zhang LP, Liu HW. Metabolome and Genome Analysis of a Novel Endophytic Fungus Aureobasidium pullulans KB3: Discovery of Polyketones and Polyketone Biosynthesis Pathway. Biochem Genet 2024:10.1007/s10528-024-10866-7. [PMID: 38877158 DOI: 10.1007/s10528-024-10866-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
Endophytic fungi associated with plants may contain undiscovered bioactive compounds. Under standard laboratory conditions, most undiscovered compounds are inactive, whereas their production could be stimulated under different cultivation conditions. In this study, six endophytic fungi were isolated from the bark of Koelreuteria paniculata in Quancheng Park, Jinan City, Shandong Province, one of which was identified as a new subspecies of Aureobasidium pullulans, named A. pullulans KB3. Additionally, metabolomic tools were used to screen suitable media for A. pullulans KB3 fermentation, and the results showed that peptone dextrose medium (PDM) was more beneficial to culture A. pullulans KB3 for isolation of novel compounds. Sphaerolone, a polyketone compound, was initially isolated from A. pullulans KB3 via scaled up fermentation utilizing PDM. Additionally, the whole-genome DNA of A. pullulans KB3 was sequenced to facilitate compound isolation and identify the biosynthesis gene clusters (BGCs). This study reports the multi-omics (metabolome and genome) analysis of A. pullulans KB3, laying the foundation for discovering novel compounds of silent BGCs and identifying their biosynthesis pathway.
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Affiliation(s)
- Shuai Wang
- School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, 252000, Shandong, People's Republic of China
| | - Jia-Nuo He
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Ying-Jie Wang
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Wen-Ya Zhao
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Qing-Xia Yang
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Ya-Na Wang
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Yang Zhang
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Li-Ping Zhang
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China
| | - Hong-Wei Liu
- Laboratory of Microbiology, Institute of Biology, Hebei Academy of Sciences, 15, Shijiazhuang, 050081, Hebei, People's Republic of China.
- Laboratory of Microbiology, Main Crops Disease of Microbial Control Engineering Technology Research Center in Hebei Province, 15, Shijiazhuang, 050081, Hebei, People's Republic of China.
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The signaling pathways involved in metabolic regulation and stress responses of the yeast-like fungi Aureobasidium spp. Biotechnol Adv 2021; 55:107898. [PMID: 34974157 DOI: 10.1016/j.biotechadv.2021.107898] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 12/22/2022]
Abstract
Aureobasidium spp. can use a wide range of substrates and are widely distributed in different environments, suggesting that they can sense and response to various extracellular signals and be adapted to different environments. It is true that their pullulan, lipid and liamocin biosynthesis and cell growth are regulated by the cAMP-PKA signaling pathway; Polymalate (PMA) and pullulan biosynthesis is controlled by the Ca2+ and TORC1 signaling pathways; the HOG1 signaling pathway determines high osmotic tolerance and high pullulan and liamocin biosynthesis; the Snf1/Mig1 pathway controls glucose repression on pullulan and liamocin biosynthesis; DHN-melanin biosynthesis and stress resistance are regulated by the CWI signaling pathway and TORC1 signaling pathway. In addition, the HSF1 pathway may control cell growth of some novel strains of A. melanogenum at 37 °C. However, the detailed molecular mechanisms of high temperature growth and thermotolerance of some novel strains of A. melanogenum and glucose derepression in A. melanogenum TN3-1 are still unclear.
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