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Yoon J, Kim Y, Kim S, Jeong H, Park J, Jeong MH, Park S, Jo M, An S, Park J, Jang SH, Goh J, Park SY. Agrobacterium tumefaciens-Mediated Transformation of the Aquatic Fungus Phialemonium inflatum FBCC-F1546. J Fungi (Basel) 2023; 9:1158. [PMID: 38132759 PMCID: PMC10744869 DOI: 10.3390/jof9121158] [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: 11/08/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
Phialemonium inflatum is a useful fungus known for its ability to mineralise lignin during primary metabolism and decompose polycyclic aromatic hydrocarbons (PAHs). However, no functional genetic analysis techniques have been developed yet for this fungus, specifically in terms of transformation. In this study, we applied an Agrobacterium tumefaciens-mediated transformation (ATMT) system to P. inflatum for a functional gene analysis. We generated 3689 transformants using the binary vector pSK1044, which carried either the hygromycin B phosphotransferase (hph) gene or the enhanced green fluorescent protein (eGFP) gene to label the transformants. A Southern blot analysis showed that the probability of a single copy of T-DNA insertion was approximately 50% when the co-cultivation of fungal spores and Agrobacterium tumefaciens cells was performed at 24-36 h, whereas at 48 h, it was approximately 35.5%. Therefore, when performing gene knockout using the ATMT system, the co-cultivation time was reduced to ≤36 h. The resulting transformants were mitotically stable, and a PCR analysis confirmed the genes' integration into the transformant genome. Additionally, hph and eGFP gene expressions were confirmed via PCR amplification and fluorescence microscopy. This optimised transformation system will enable functional gene analyses to study genes of interest in P. inflatum.
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Affiliation(s)
- Jonghan Yoon
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
| | - Youngjun Kim
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
| | - Seoyeon Kim
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
| | - Haejun Jeong
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
| | - Jiyoon Park
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
| | - Min-Hye Jeong
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
| | - Sangkyu Park
- Fungi Research Team, Microbial Research Department, Nakdonggang National Institute of Biological Resources, Donam 2-gil 137, Sangju 37242, Republic of Korea;
| | - Miju Jo
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
| | - Sunmin An
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
| | - Jiwon Park
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
| | - Seol-Hwa Jang
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
| | - Jaeduk Goh
- Fungi Research Team, Microbial Research Department, Nakdonggang National Institute of Biological Resources, Donam 2-gil 137, Sangju 37242, Republic of Korea;
| | - Sook-Young Park
- Department of Plant Medicine, Sunchon National University, Suncheon 57922, Republic of Korea; (J.Y.); (Y.K.); (S.K.); (H.J.); (J.P.); (M.-H.J.); (M.J.); (S.A.); (J.P.); (S.-H.J.)
- Interdisciplinary Program in IT-Bio Convergence System (BK21 Plus), Sunchon National University, Suncheon 57922, Republic of Korea
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