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Gu L, Zhang R, Fan X, Wang Y, Ma K, Jiang J, Li G, Wang H, Fan F, Zhang X. Development of CRISPR/Cas9-Based Genome Editing Tools for Polyploid Yeast Cyberlindnera jadinii and Its Application in Engineering Heterologous Steroid-Producing Strains. ACS Synth Biol 2023; 12:2947-2960. [PMID: 37816156 DOI: 10.1021/acssynbio.3c00278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
In this study, a suite of efficient CRISPR/Cas9 tools was developed to overcome the genetic manipulation challenges posed by the polyploid genome of industrial yeast Cyberlindnera jadinii. The developed CRISPR/Cas9 system can achieve a 100% single-gene knockdown efficiency in strain NBRC0988. Moreover, the integration of a single exogenous gene into the target locus using a 50 bp homology arm achieved near-100% efficiency. The efficiency of simultaneous integration of three genes into the chromosome is strongly influenced by the length of the homology arm, with the highest integration efficiency of 62.5% obtained when selecting a homology arm of about 500 bp. By utilizing the CRISPR/Cas system, this study demonstrated the potential of C. jadinii in producing heterologous sterols. Through shake-flask fermentation, the engineered strains produced 92.1 and 81.8 mg/L of campesterol and cholesterol, respectively. Furthermore, the production levels of these two sterols were further enhanced through high-cell-density fed-batch fermentation in a 5 L bioreactor. The highest titer of campesterol reached 807 mg/L [biomass OD600 = 294, productivity of 6.73 mg/(L·h)]. The titer of cholesterol reached 1.52 g/L [biomass OD600 = 380, productivity of 9.06 mg/(L·h)], marking the first gram-scale production of steroidal compounds in C. jadinii.
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Affiliation(s)
- Lishan Gu
- College of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, P. R. China
| | - Rongxin Zhang
- College of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, P. R. China
| | - Xuqian Fan
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, P. R. China
| | - Yu Wang
- College of Biotechnology and Food Science, Tianjin University of Commerce, 409 Glorious Road, Beichen District, Tianjin 300134, P. R. China
| | - Kaiyu Ma
- College of Biotechnology, Tianjin University of Science and Technology, No. 29 of 13th Avenue, TEDA, Tianjin 300457, P. R. China
| | - Jingjing Jiang
- College of Biotechnology and Food Science, Tianjin University of Commerce, 409 Glorious Road, Beichen District, Tianjin 300134, P. R. China
| | - Gen Li
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, P. R. China
| | - Honglei Wang
- College of Chemistry and Life Science, Changchun University of Technology, 2055 Yanan Street, Changchun 130012, P. R. China
| | - Feiyu Fan
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, P. R. China
| | - Xueli Zhang
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West Seventh Avenue, Tianjin Airport Economic Area, Tianjin 300308, P. R. China
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Yu HZ, Huang YL, Lu ZJ, Zhang Q, Su HN, Du YM, Yi L, Zhong BL, Chen CX. Inhibition of trehalase affects the trehalose and chitin metabolism pathways in Diaphorina citri (Hemiptera: Psyllidae). INSECT SCIENCE 2021; 28:718-734. [PMID: 32428381 DOI: 10.1111/1744-7917.12819] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/16/2020] [Accepted: 04/29/2020] [Indexed: 05/14/2023]
Abstract
The Asian citrus psyllid, Diaphorina citri is the principal vector of huanglongbing, which transmits Candidatus Liberibacter asiaticus. Trehalase is a key enzyme involved in trehalose hydrolysis and plays an important role in insect growth and development. The specific functions of this enzyme in D. citri have not been determined. In this study, three trehalase genes (DcTre1-1, DcTre1-2, and DcTre2) were identified based on the D. citri genome database. Bioinformatic analysis showed that DcTre1-1 and DcTre1-2 are related to soluble trehalase, whereas DcTre2 is associated with membrane-bound trehalase. Spatiotemporal expression analysis indicated that DcTre1-1 and DcTre1-2 had the highest expression levels in the head and wing, respectively, and DcTre2 had high expression levels in the fat body. Furthermore, DcTre1-1 and DcTre1-2 expression levels were induced by 20-hydroxyecdysone and juvenile hormone Ⅲ, but DcTre2 was unaffected. The expression levels of DcTre1-1, DcTre1-2, and DcTre2 were significantly upregulated, which resulted in high mortality after treatment with validamycin. Trehalase activities and glucose contents were downregulated, but the trehalose content increased after treatment with validamycin. In addition, the expression levels of chitin metabolism-related genes significantly decreased at 24 and 48 h after treatment with validamycin. Furthermore, silencing of DcTre1-1, DcTre1-2, and DcTre2 reduced the expression levels of chitin metabolism-related genes and led to a malformed phenotype of D. citri. These results indicate that D. citri trehalase plays an essential role in regulating chitin metabolism and provides a new target for control of D. citri.
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Affiliation(s)
- Hai-Zhong Yu
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
| | - Yu-Ling Huang
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
| | - Zhan-Jun Lu
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
- China-USA Citrus Huanglongbing Joint Laboratory, A Joint Laboratory of The University of Florida and Gannan Normal University, Ganzhou, Jiangxi, China
| | - Qin Zhang
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
| | - Hua-Nan Su
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
| | - Yi-Ming Du
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
- China-USA Citrus Huanglongbing Joint Laboratory, A Joint Laboratory of The University of Florida and Gannan Normal University, Ganzhou, Jiangxi, China
| | - Long Yi
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
| | - Ba-Lian Zhong
- College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
- National Navel Orange Engineering Research Center, Ganzhou, Jiangxi, China
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Mei YZ, Huang PW, Liu Y, He W, Fang WW. Cold stress promoting a psychrotolerant bacterium Pseudomonas fragi P121 producing trehaloase. World J Microbiol Biotechnol 2016; 32:134. [PMID: 27339315 DOI: 10.1007/s11274-016-2097-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 06/14/2016] [Indexed: 10/21/2022]
Abstract
A newly isolated Pseudomonas fragi P121 strain in a soil sample taken from the Arctic Circle is able to produce trehalose. The P121 strain was able to grow at temperatures ranging from 4 to 25 °C, had an optimum pH of 6.5, and an optimum salt concentration of 2 %. The P121 strain had a survival rate of 29.1 % after being repeatedly frozen and thawed five times, and a survival rate of 78.9 % when placed in physiological saline for 15 days at 20 °C after cold shock, which is far higher than the type strain Pseudomonas fragi ATCC 4973. The P121 strain could produce 2.89 g/L trehalose, which was 18.6 % of dry cell weight within 52 h in a 25 L fermention tank using the malt extract prepared from barley as medium at 15 °C, while only 11.8 % of dry cell weight at 20 °C. These results suggested that cold stress promoted the strain producing trehalose. It is the first reported cold-tolerant bacterium that produces trehalose, which may protect cells against the cold environment.
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Affiliation(s)
- Yan-Zhen Mei
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China.
| | - Peng-Wei Huang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China
| | - Yang Liu
- College of Life Science, Inner Mongolia University, Hohhot, 010021, Inner Mongolia, China
| | - Wei He
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China
| | - Wen-Wan Fang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, 210023, Jiangsu Province, China
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Lahiri S, Banerjee S, Dutta T, Sengupta S, Dey S, Roy R, Sengupta D, Chattopadhyay K, Ghosh AK. Enzymatic and Regulatory Attributes of Trehalose-6-Phosphate Phosphatase fromCandida utilisand its Role During Thermal Stress. J Cell Physiol 2014; 229:1245-55. [DOI: 10.1002/jcp.24562] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Accepted: 01/16/2014] [Indexed: 01/05/2023]
Affiliation(s)
- Sagar Lahiri
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Shakri Banerjee
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Trina Dutta
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Shinjinee Sengupta
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Sandip Dey
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Rusha Roy
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Devlina Sengupta
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Krishnananda Chattopadhyay
- Protein Folding and Dynamics Laboratory; Structural Biology and Bioinformatics Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
| | - Anil K. Ghosh
- Drug Development Diagnostics & Biotechnology Division; CSIR - Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Kolkata 700032 India
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