1
|
Ning YN, Tian D, Zhao S, Feng JX. Regulation of genes encoding polysaccharide-degrading enzymes in Penicillium. Appl Microbiol Biotechnol 2024; 108:16. [PMID: 38170318 DOI: 10.1007/s00253-023-12892-8] [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] [Received: 06/29/2023] [Revised: 10/02/2023] [Accepted: 10/10/2023] [Indexed: 01/05/2024]
Abstract
Penicillium fungi, including Penicillium oxalicum, can secrete a range of efficient plant-polysaccharide-degrading enzymes (PPDEs) that is very useful for sustainable bioproduction, using renewable plant biomass as feedstock. However, the low efficiency and high cost of PPDE production seriously hamper the industrialization of processes based on PPDEs. In Penicillium, the expression of PPDE genes is strictly regulated by a complex regulatory system and molecular breeding to modify this system is a promising way to improve fungal PPDE yields. In this mini-review, we present an update on recent research progress concerning PPDE distribution and function, the regulatory mechanism of PPDE biosynthesis, and molecular breeding to produce PPDE-hyperproducing Penicillium strains. This review will facilitate future development of fungal PPDE production through metabolic engineering and synthetic biology, thereby promoting PPDE industrial biorefinery applications. KEY POINTS: • This mini review summarizes PPDE distribution and function in Penicillium. • It updates progress on the regulatory mechanism of PPDE biosynthesis in Penicillium. • It updates progress on breeding of PPDE-hyperproducing Penicillium strains.
Collapse
Affiliation(s)
- Yuan-Ni Ning
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, People's Republic of China
| | - Di Tian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, People's Republic of China
| | - Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, People's Republic of China.
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, People's Republic of China.
| |
Collapse
|
2
|
Ning YN, Liang X, Shen X, Tian D, Li WT, Luo XM, Feng JX, Zhao S. A RsrC-RsrA-RsrB transcriptional circuit positively regulates polysaccharide-degrading enzyme biosynthesis and development in Penicillium oxalicum. Commun Biol 2024; 7:848. [PMID: 38992164 PMCID: PMC11239660 DOI: 10.1038/s42003-024-06536-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024] Open
Abstract
Filamentous fungi produce polysaccharide-degrading enzymes, which is controlled by poorly understood transcriptional circuits. Here we show that a circuit comprising RsrC-RsrA-RsrB (Rsr: production of raw-starch-degrading enzyme regulator) that positively regulates production of raw starch-degrading enzymes in Penicillium oxalicum. Transcription factor (TF) RsrA is essential for biosynthesis of raw starch-degrading enzymes. RsrB and RsrC containing Zn2Cys6- and C2H2-zinc finger domains, act downstream and upstream of RsrA, respectively. RsrA activates rsrB transcription, and three nucleotides (G-286, G-287 and G-292) of rsrB promoter region are required for RsrA, in terms of TF, for binding. RsrB165-271 binds to DNA sequence 5'-TCGATCAGGCACGCC-3' in the promoter region of the gene encoding key raw-starch-degrading enzyme PoxGA15A. RsrC specifically binds rsrA promoter, but not amylase genes, to positively regulate the expression of rsrA and the production of raw starch-degrading enzymes. These findings expand complex regulatory network of fungal raw starch-degrading enzyme biosynthesis.
Collapse
Affiliation(s)
- Yuan-Ni Ning
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Xue Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Xin Shen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Di Tian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Wen-Tong Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Xue-Mei Luo
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
| | - Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
- Guangxi Research Center for Microbial and Enzyme Engineering Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
- College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi, 530004, P. R. China.
| |
Collapse
|
3
|
Gao S, Li L, Wei Y, Wen L, Shao S, Wu J, Zong X. Research Progress of ARTP Mutagenesis Technology Based on Citespace Visualization Analysis. Mol Biotechnol 2024:10.1007/s12033-024-01231-5. [PMID: 38990498 DOI: 10.1007/s12033-024-01231-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/15/2024] [Indexed: 07/12/2024]
Abstract
Atmospheric and room temperature plasma (ARTP) mutagenesis technology has been developed rapidly in recent years because of its simple operation, safety, environmental friendliness, high mutation rate, and large mutation library capacity. It has been widely used in traditional fields such as food, agriculture, and medicine, and has been gradually applied in emerging fields such as environmental remediation, bioenergy, and microalgae utilization. In this paper, the Web of Science Core Collection (WOSCC) was used as the data source, and the keywords and core literature of ARTP mutagenesis technology were plotted by citespace software, and the research progress and research hotspots of ARTP mutagenesis technology were analyzed. Through citespace visualization analysis, it is concluded that the country with the largest number of studies is China, the institution with the largest number of studies is Jiangnan University, and the author of the most published papers is Jiangnan University. Through keyword analysis, it is concluded that the most widely used ARTP mutagenesis technology is fermentation-related majors, mainly for biosynthesis and microbial research at the molecular level. Among them, the most widely used microorganisms are Escherichia coli and Saccharomyces cerevisiae.
Collapse
Affiliation(s)
- Shun Gao
- Liquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
| | - Li Li
- Liquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
| | - Yonggong Wei
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
| | - Lei Wen
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
| | - Shujuan Shao
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China
| | - Jianhang Wu
- Liquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China.
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China.
| | - Xuyan Zong
- Liquor Brewing Biotechnology and Application Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China.
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, Sichuan, China.
| |
Collapse
|
4
|
Yan G, Zhou Y, Wu J, Jin C, Zhao L, Wang W. Novel Strain of Paenibacillus phyllosphaerae CS-148 for the Direct Hydrolysis of Raw Starch into Glucose: Isolation and Fermentation Optimization. Appl Biochem Biotechnol 2024; 196:4125-4139. [PMID: 37897622 DOI: 10.1007/s12010-023-04750-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2023] [Indexed: 10/30/2023]
Abstract
The conventional process for converting starch to glucose is energy-intensive. To lower the cost of this process, a novel strain of Paenibacillus phyllosphaerae CS-148 was isolated and identified, which could directly hydrolyze raw starch into glucose and accumulate glucose in the fermentation broth. The effects of different organic and inorganic nitrogen sources, the culture temperature, the initial pH, and the agitation speed on the yield of glucose were optimized through the one-factor-at-a-time method. Nine factors were screened by Plackett-Burman design, and three factors (raw corncob starch, yeast extract and (NH4)2SO4) had significant effects on glucose yield. Three significant factors were further optimized using Box-Behnken design. Under the optimized fermentation conditions (raw corncob starch 40.4 g/L, yeast extract 4.27 g/L, (NH4)2SO4 4.39 g/L, KH2PO4 2 g/L, MgSO4`7H2O 2 g/L, FeSO4`7H2O 0.02 g/L, NaCl 2 g/L, KCl 0.5 g/L, inoculums volume 4%, temperature 35 °C, agitation rate 150 rpm, and initial pH 7.0), the maximum glucose yield reached 17.32 ± 0.46 g/L, which is 1.33-fold compared to that by initial fermentation conditions. The maximum conversion rate and glucose productivity were 0.43 ± 0.01 g glucose/g raw corn starch and 0.22 ± 0.01 g/(L·h), respectively. These results implied that P. phyllosphaerae CS-148 could be used in the food industry or fermentation industry at a low cost.
Collapse
Affiliation(s)
- Guilong Yan
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
- Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Huaiyin Normal University, Huaian, 223300, China.
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China.
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China.
| | - Yuzhen Zhou
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| | - Jianguo Wu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| | - Ci Jin
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| | - Liqin Zhao
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| | - Wei Wang
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian, 223300, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian, China
| |
Collapse
|
5
|
Ubi DS, Ekpenyong MG, Ikharia EJ, Akwagiobe EA, Asitok AD, Antai SP. Production, characterization, and bio-ethanologenic potential of a novel tripartite raw starch-digesting amylase from Priestia flexa UCCM 00132. Prep Biochem Biotechnol 2024; 54:597-611. [PMID: 37787010 DOI: 10.1080/10826068.2023.2259452] [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: 10/04/2023]
Abstract
The biological conversion of agro-waste biomass into value-added metabolites is one of the trendy biotechnological research areas in recent times. One of the major drawbacks of the bioprocess is the saccharification potential of the amylolytic enzyme that releases reducing sugar from complex biomass to serve as substrate for fermentation. The present study reports the production of a novel tripartite raw starch-digesting amylase (RSDA) by an indigenous Priestia flexa strain with α-, β-, and gluco-amylolytic activities and its potential for bioethanol production. Response surface statistics was employed to develop a suitable medium for improved production of the tripartite enzyme by submerged fermentation. The bioprocess selected raw starch (4.36%) Ca2+(2.71 g/L) and Zn2+ (0.0177 g/L) as significant variables which demonstrated a total RSDA activity of 7208.23 U/mL in a 5-L batch bioreactor. SDS/Native-PAGE determined the molecular weights of the 27-fold purified product as 25.2 kDa, 57.3 kDa, and 90.1 kDa for α-, β-, and gluco-amylases, respectively. Optimum temperature and pH for enzyme activity were respectively broad at 30-70 °C and 4-11. The enzyme mixture demonstrated digestibility above 90% against a variety of raw starches and simultaneous fermentation of digestate with Saccharomyces cerevisiae generated 71.69 g/L of bioethanol within 24 h suggesting great potential for bioethanologenesis.
Collapse
Affiliation(s)
- David Sam Ubi
- Food and Industrial Microbiology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
| | - Maurice George Ekpenyong
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| | - Eloghosa Joyce Ikharia
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
| | - Ernest Ablewho Akwagiobe
- Food and Industrial Microbiology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
| | - Atim David Asitok
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| | - Sylvester Peter Antai
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| |
Collapse
|
6
|
Phonlamai A, Kingkaew T, Prajanket P, Sakdapetsiri C, Krajangsang S, Kitpreechavanich V, Lomthong T. Raw starch degrading alkaline α-amylase from Geobacillus kaustophilus TSCCA02: Production, characterization, and its potential for application as a detergent additive. J Basic Microbiol 2024; 64:e2300653. [PMID: 38212247 DOI: 10.1002/jobm.202300653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/10/2023] [Accepted: 12/20/2023] [Indexed: 01/13/2024]
Abstract
Geobacillus kaustophilus TSCCA02, a newly isolated strain from cassava (Manihot esculenta L.) rhizosphere soil in Thailand, showed maximum raw starch degrading enzyme (RSDE) activity at 252.3 ± 9.32 U/mL with cassava starch and peptone at 5.0 and 3.0 g/L, respectively. 16 S ribosomal RNA (rRNA) sequencing and phylogenetic tree analyses indicated that the TSCCA02 strain was closely related to G. kaustophilus. The crude RSDE had optimal activity at 60°C and pH 9.0. This enzyme degraded various kinds of starch including potato starch, cassava starch, rice flour, corn starch, glutinous rice flour, and wheat flour to produce sugar syrup at 60°C, as confirmed by scanning electron microscopy (SEM), thin-layer chromatography (TLC), and Fourier-transform infrared spectroscopy (FTIR). The major end products of starch hydrolysis were maltose and maltotriose with a small amount of glucose, confirming this enzyme as an α-amylase. The enzyme improved the washing efficiency of cotton fabric with commercial detergent. Results indicated the potential of alkaline α-amylase produced from a new isolate of G. kaustophilus TSCCA02 for application as a detergent additive on an industrial scale.
Collapse
Affiliation(s)
- Ausawadee Phonlamai
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, Khlong Hok, Thailand
| | - Thananya Kingkaew
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, Khlong Hok, Thailand
| | - Pradabrat Prajanket
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, Khlong Hok, Thailand
| | - Chatsuda Sakdapetsiri
- Department of Plant Pathology, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Bangkok, Thailand
| | - Sukhumaporn Krajangsang
- Department of Microbiology, Faculty of Science, Srinakharinwirot University, Bangkok, Watthana, Thailand
| | | | - Thanasak Lomthong
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, Khlong Hok, Thailand
| |
Collapse
|
7
|
Chandukishore T, Biswas TS, Prabhu AA. Valorization of sugarcane bagasse for high-yield production of laccase through Aspergillus terreus for effective azo dye decolourization. Prep Biochem Biotechnol 2024:1-12. [PMID: 38557365 DOI: 10.1080/10826068.2024.2332881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Synthetic dyes such as azo dyes are significant pollutants in the wastewater released from various textile industries. The low biodegradability and production from synthetic sources with high shelf life make azo dyes a challenging material for degradation. This study used chemically mutated Aspergillus terrus in the laccase production under solid-state fermentation using sugarcane bagasse. Initially, the wild-type strain produced a laccase activity of 4.12 U/mL. Later, the alkaline pretreatment of sugarcane bagasse showed a significant increase in laccase activity by 38.9%. Further, random mutagenesis treatment with 100 mM EMS generated a hyper laccase-producing strain with a 2.3-fold increment in laccase activity compared to the wild-type strain. The enzyme displayed optimal activity at pH 6.5 and 35 °C. The metal ions such as Fe3+ (29.4 U/mL), Fe2+ (20.8 U/mL) and Cu2+ (18.05 U/mL) showed positive effects on laccase activity. The crude laccase was used to bioremediate Congo red, a prominent azo dye used in textile and pharmaceutical industries. The preliminary studies with a crude enzyme displayed 68.86% dye decolourization after 24 h of incubation. Additionally, with Taguchi orthogonal array optimization experiments, the maximal dye decolorization of 78.24% was achieved by maintaining crude enzyme concentration (20 U), dye concentration (25 mg/L) and pH 4.5.
Collapse
Affiliation(s)
- T Chandukishore
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal, India
| | - Tuhin Subhra Biswas
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal, India
| | - Ashish A Prabhu
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal, India
| |
Collapse
|
8
|
Li D, Shen J, Ding Q, Wu J, Chen X. Recent progress of atmospheric and room-temperature plasma as a new and promising mutagenesis technology. Cell Biochem Funct 2024; 42:e3991. [PMID: 38532652 DOI: 10.1002/cbf.3991] [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: 12/09/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
At present, atmospheric and room-temperature plasma (ARTP) is regarded as a new and powerful mutagenesis technology with the advantages of environment-friendliness, operation under mild conditions, and fast mutagenesis speed. Compared with traditional mutagenesis strategies, ARTP is used mainly to change the structure of microbial DNA, enzymes, and proteins through a series of physical, chemical, and electromagnetic effects with the organisms, leading to nucleotide breakage, conversion or inversion, causing various DNA damages, so as to screen out the microbial mutants with better biological characteristics. As a result, in recent years, ARTP mutagenesis and the combination of ARTP with traditional mutagenesis have been widely used in microbiology, showing great potential for application. In this review, the recent progress of ARTP mutagenesis in different application fields and bottlenecks of this technology are systematically summarized, with a view to providing a theoretical basis and technical support for better application. Finally, the outlook of ARTP mutagenesis is presented, and we identify the challenges in the field of microbial mutagenesis by ARTP.
Collapse
Affiliation(s)
- Dongao Li
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Jie Shen
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
| | - Qiang Ding
- Yichang Sanxia Pharmaceutical Co., Ltd., Yichang City, Hubei Province, China
| | - Jinyong Wu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
| | - Xiangsong Chen
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
| |
Collapse
|
9
|
Das S, T C, Selvasembian R, Prabhu AA. Mixed food waste valorization using a thermostable glucoamylase enzyme produced by a newly isolated filamentous fungus: A sustainable biorefinery approach. CHEMOSPHERE 2024; 352:141480. [PMID: 38401866 DOI: 10.1016/j.chemosphere.2024.141480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/26/2024] [Accepted: 02/15/2024] [Indexed: 02/26/2024]
Abstract
Food waste is a lucrative source of complex nutrients, which can be transformed into a multitude of bioproducts by the aid of microbial cell factories. The current study emphasizes isolating Glucoamylase enzyme (GA) producing strains that can effectively break down mixed food waste (MW), which serves as a substrate for biomanufacturing. The screening procedure relied heavily on the growth of isolated fungi on starch agar media, to specifically identify the microbes with the highest starch hydrolysis potential. A strain displayed the highest GA activity of 2.9 ± 0.14 U/ml which was selected and identified as Aspergillus fumigatus via molecular methods of identification. Exposure of the A. fumigatus with 200 mM Ethyl methanesulphonate (EMS) led to a 23.79% increase compared to the wild-type GA. The growth conditions like cultivation temperature or the number of spores in the inoculum were investigated. Further, maximum GA activity was exhibited at pH 5, 55 °C, and at 5 mM Ca2+ concentration. The GA showed thermostability, retaining activity even after long periods of exposure to temperatures as high as 95 °C. The improvement of hydrolysis of MW was achieved by Taguchi design where a maximum yield of 0.57 g g-1 glucose was obtained in the hydrolysate. This study puts forth the possibility that mixed food waste, despite containing spices and other microbial growth-inhibitory substances, can be efficiently hydrolyzed to release glucose units, by robust fungal cell factories. The glucose released can then be utilized as a carbon source for the production of value-added products.
Collapse
Affiliation(s)
- Satwika Das
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Chandukishore T
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Rangabhashiyam Selvasembian
- Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University-AP, Amaravati, Andhra Pradesh, 522240, India
| | - Ashish A Prabhu
- Bioprocess Development Laboratory, Department of Biotechnology, National Institute of Technology, Warangal, Telangana, 506004, India.
| |
Collapse
|
10
|
Yu L, Li F, Ni J, Qin X, Lai J, Su X, Li Z, Zhang M. UV-ARTP compound mutagenesis breeding improves macrolactins production of Bacillus siamensis and reveals metabolism changes by proteomic. J Biotechnol 2024; 381:36-48. [PMID: 38190850 DOI: 10.1016/j.jbiotec.2023.12.011] [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] [Received: 08/13/2023] [Revised: 11/16/2023] [Accepted: 12/26/2023] [Indexed: 01/10/2024]
Abstract
Macrolactins are a type of compound with complex macrolide structure which mainly be obtained through microbiological fermentation now. They have excellent antifungal, antibacterial and antitumor activity. In order to improve macrolactins production, Bacillus siamensis YB304 was used as the research object, and a mutant Mut-K53 with stable genetic characters was selected by UV-ARTP compound mutagenesis. The yield of macrolactins was 156.46 mg/L, 3.95 times higher than original strain. The metabolic pathway changes and regulatory mechanism of macrolactins were analyzed by quantitative proteomics combined with parallel reaction monitoring. This study revealed that 1794 proteins were extracted from strain YB304 and strain Mut-K53, most of them were related to metabolism. After UV-ARTP compound mutagenesis treatment, the expression of 628 proteins were significantly changed, of which 299 proteins were significantly up-regulated. KEGG pathway analysis showed that differentially expression proteins mainly distributed in biological process, cellular component, and molecular function processing pathways. Such as utilization of carbon sources, glycolysis pathway, and amino acid metabolism pathway. Furthermore, key precursor substances such as acyl-CoA and amino acids of macrolactin biosynthesis are mostly up-regulated, which are one of the main reasons for increased production of macrolactin.This study will provide a new way to increase the yield of macrolactins through mutagenesis breeding and proteomics.
Collapse
Affiliation(s)
- Lian Yu
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China
| | - Fei Li
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China.
| | - Jie Ni
- Department of Chemistry and Chemical, Guilin Normal College, Guilin 541199, China.
| | - Xianling Qin
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Junxiang Lai
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Xinying Su
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Zhe Li
- Guangxi Key Laboratory of Marine Environmental Science, Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning 530007, China
| | - Mengfei Zhang
- Department of Food Science and Engineering, College of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China
| |
Collapse
|
11
|
Zhu CY, Zhao XY, Lyu ZY, Gao WL, Zhao QW, Chen XA, Li YQ. Daptomycin production enhancement by ARTP mutagenesis and fermentation optimization in Streptomyces roseosporus. J Appl Microbiol 2023; 134:lxad230. [PMID: 37873659 DOI: 10.1093/jambio/lxad230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/23/2023] [Accepted: 10/19/2023] [Indexed: 10/25/2023]
Abstract
AIMS We evaluated whether the randomness of mutation breeding can be regulated through a double-reporter system. We hope that by establishing a new precursor feeding strategy, the production capacity of industrial microorganisms after pilot scale-up can be further improved. METHODS AND RESULTS In this study, the industrial strain Streptomyces roseosporus L2796 was used as the starter strain for daptomycin production, and a double-reporter system with the kanamycin resistance gene Neo and the chromogenic gene gusA was constructed to screen for high-yield strain L2201 through atmospheric and room temperature plasma (ARTP). Furthermore, the composition of the culture medium and the parameters of precursor replenishment were optimized, resulting in a significant enhancement of the daptomycin yield of the mutant strain L2201(752.67 mg/l). CONCLUSIONS This study successfully screened a high-yield strain of daptomycin through a double-reporter system combined with ARTP mutation. The expression level of two reporter genes can evaluate the strength of dptEp promoter, which can stimulate the expression level of dptE in the biosynthesis of daptomycin, thus producing more daptomycin. The developed multi-stage feeding rate strategy provides a novel way to increase daptomycin in industrial fermentation.
Collapse
Affiliation(s)
- Chen-Yang Zhu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Xin-Yi Zhao
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Zhong-Yuan Lyu
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Wen-Li Gao
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Qing-Wei Zhao
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Xin-Ai Chen
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| | - Yong-Quan Li
- First Affiliated Hospital and Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering, Hangzhou 310058, China
| |
Collapse
|
12
|
Wang HJ, Cui C, Gong XM, Wang S, Li CX, Guo H, Wang YL, Huang YD, Jiang JL, Luo XM, Miao JH, Liu TQ, Zhao S, Feng JX. Improvement of triterpenoid production in mycelia of Antrodia camphorata through mutagenesis breeding and amelioration of CCl 4-induced liver injury in mice. Heliyon 2023; 9:e19621. [PMID: 37809917 PMCID: PMC10558866 DOI: 10.1016/j.heliyon.2023.e19621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 08/13/2023] [Accepted: 08/28/2023] [Indexed: 10/10/2023] Open
Abstract
Due to the scarcity of wild fruiting bodies, submerged fermentation of the medicinal fungus Antrodia camphorata is attracting much attention, but the production of bioactive triterpenoids is low. Therefore, there is an urgent need to improve the triterpenoid yield of submerged fermentation. Here, the A. camphorata mutant E3-64 was generated from strain AC16101 through random mutagenesis breeding, producing 172.8 mg triterpenoid per gram of dry mycelia. Further optimization of culture parameters resulted in a yield of 255.5 mg/g dry mycelia (i.e., an additional >1.4-fold increase), which is the highest reported yield thus far. Notably, mutant E3-64 produced 94% and 178% more of the triterpenoid components antcin A and antcamphin A, respectively, while it produced 52% and 15% less antcin B and G, respectively. Mutant E3-64 showed increased expression of key genes involved in triterpenoid biosynthesis, as well as different genome-wide single-nucleotide polymorphisms as compared with AC16101. Triterpenoids of the E3-64 mycelia exhibited remarkably protective activity against acute CCl4-induced liver injury in mice. This study shows the potential of A. camphorata for scientific research and commercial application.
Collapse
Affiliation(s)
- Huan-Ju Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Ce Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Xiao-Mei Gong
- Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023, China
| | - Shuo Wang
- Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023, China
| | - Cheng-Xi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
- School of Life Science, Bengbu Medical College, Bengbu, 233030, China
| | - Hao Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Ya-Ling Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Yu-Dan Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jian-Lin Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Xue-Mei Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jian-Hua Miao
- Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023, China
| | - Tian-Qi Liu
- Jiangbin Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| |
Collapse
|
13
|
Zhang Q, Miao R, Feng R, Yan J, Wang T, Gan Y, Zhao J, Lin J, Gan B. Application of Atmospheric and Room-Temperature Plasma (ARTP) to Microbial Breeding. Curr Issues Mol Biol 2023; 45:6466-6484. [PMID: 37623227 PMCID: PMC10453651 DOI: 10.3390/cimb45080408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/28/2023] [Accepted: 08/03/2023] [Indexed: 08/26/2023] Open
Abstract
Atmospheric and room-temperature plasma (ARTP) is an efficient microbial mutagenesis method with broad application prospects. Compared to traditional methods, ARTP technology can more effectively induce DNA damage and generate stable mutant strains. It is characterized by its simplicity, cost-effectiveness, and avoidance of hazardous chemicals, presenting a vast potential for application. The ARTP technology is widely used in bacterial, fungal, and microalgal mutagenesis for increasing productivity and improving characteristics. In conclusion, ARTP technology holds significant promise in the field of microbial breeding. Through ARTP technology, we can create mutant strains with specific genetic traits and improved performance, thereby increasing yield, improving quality, and meeting market demands. The field of microbial breeding will witness further innovation and progress with continuous refinement and optimization of ARTP technology.
Collapse
Affiliation(s)
- Qin Zhang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Renyun Miao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Rencai Feng
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Junjie Yan
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Tao Wang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Ying Gan
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Jin Zhao
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Junbin Lin
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| | - Bingcheng Gan
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610299, China; (Q.Z.); (R.M.); (R.F.); (J.Y.); (T.W.); (Y.G.); (J.Z.); (J.L.)
- Chengdu National Agricultural Science and Technology Center, Chengdu 610299, China
| |
Collapse
|
14
|
Thein YW, Shi L, Liu B, Wei Q, Zhang K, Ge B. Enhancing wuyiencin productivity of Streptomyces albulus (CK15) by mutagenesis breeding with atmospheric and room temperature plasma. World J Microbiol Biotechnol 2023; 39:202. [PMID: 37209223 DOI: 10.1007/s11274-023-03586-4] [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: 02/07/2022] [Accepted: 03/17/2023] [Indexed: 05/22/2023]
Abstract
Streptomyces species are known for their ability to efficiently produce secondary metabolites, including various antibiotics. Wuyiencin, an antibiotic produced by Streptomyces albulus CK15, is commonly used in agriculture to control fungal diseases in crops and vegetables. In this study, we utilized atmospheric and room temperature plasma (ARTP) mutagenesis to generate mutant S. albulus strains with improved fermentation capabilities for wuyiencin production. After mutagenizing the wild-type S. albulus CK15 strain once and conducting two rounds of antimicrobial screening, three genetically stable mutants (M19, M26, and M28) were identified. These mutants showed increased wuyiencin production by 17.4%, 13.6%, and 18.5% in comparison to the CK15 strain in flask culture, respectively. The M28 mutant exhibited the highest wuyiencin activity, producing 1443.0 ± 134.6 U/mL in flask culture and 1673.8 ± 127.4 U/mL in a 5 L fermenter. These results demonstrate that ARTP is an efficient tool for microbial mutation breeding and improving wuyiencin production.
Collapse
Affiliation(s)
- Yu Wah Thein
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
- Department of Biotechnology, Mandalay Technological University, Mandalay, Republic of the Union of Myanmar
| | - Liming Shi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Binghua Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Qiuhe Wei
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Kecheng Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Beibei Ge
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China.
| |
Collapse
|
15
|
Sun J, Li J, Yao L, Zheng Y, Yuan J, Wang D. UV-ARTP-DES compound mutagenesis breeding improves natamycin production of Streptomyces natalensis HW-2 and reveals transcriptional changes by RNA-seq. Food Sci Biotechnol 2023; 32:341-352. [PMID: 36778090 PMCID: PMC9905406 DOI: 10.1007/s10068-022-01191-z] [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: 08/10/2022] [Revised: 09/27/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022] Open
Abstract
Natamycin is widely used in food, medical and health, agriculture, and animal husbandry. In this study, Streptomyces natalensis HW-2 was used as the research object, and a mutant DES-26 with stable genetic characters was selected by UV-ARTP-DES compound mutation. The natamycin yield was 1.64 g/L, 86.36% higher than original strain. Differential expression genes were analyzed by transcriptomics, and results showed that 295 and 860 genes were significantly differentially expressed at fermentation for 48 h and 72 h. GO and KEGG analysis showed that compound mutagenesis had a significant impact on glycolysis, pentose phosphate, TCA cycle, fatty acid metabolism pathways, and several key enzyme genes in the pathways were up-regulated, and genes related to natamycin biosynthesis (pimB-pimI) and transcriptional regulator (pimR) were also up-regulated. qRT-PCR results confirmed that expression levels of these genes were consistent with transcriptional changes of RNA-Seq. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-022-01191-z.
Collapse
Affiliation(s)
- Jianrui Sun
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| | - Jinglan Li
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| | - Linlin Yao
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| | - Yingying Zheng
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| | - Jiangfeng Yuan
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| | - Dahong Wang
- College of Food and Bioengineering, Henan Engineering Research Center of Food Microbiology, Henan University of Science and Technology, No. 263, Kaiyuan Ave., Luoyang, 471023 Henan China
| |
Collapse
|
16
|
Zhao S, Tan MZ, Wang RX, Ye FT, Chen YP, Luo XM, Feng JX. Combination of genetic engineering and random mutagenesis for improving production of raw-starch-degrading enzymes in Penicillium oxalicum. Microb Cell Fact 2022; 21:272. [PMID: 36566178 DOI: 10.1186/s12934-022-01997-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/17/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Raw starch-degrading enzyme (RSDE) is applied in biorefining of starch to produce biofuels efficiently and economically. At present, RSDE is obtained via secretion by filamentous fungi such as Penicillium oxalicum. However, high production cost is a barrier to large-scale industrial application. Genetic engineering is a potentially efficient approach for improving production of RSDE. In this study, we combined genetic engineering and random mutagenesis of P. oxalicum to enhance RSDE production. RESULTS A total of 3619 mutated P. oxalicum colonies were isolated after six rounds of ethyl methanesulfonate and Co60-γ-ray mutagenesis with the strain A2-13 as the parent strain. Mutant TE4-10 achieved the highest RSDE production of 218.6 ± 3.8 U/mL with raw cassava flour as substrate, a 23.2% compared with A2-13. Simultaneous deletion of transcription repressor gene PoxCxrC and overexpression of activator gene PoxAmyR in TE4-10 resulted in engineered strain GXUR001 with an RSDE yield of 252.6 U/mL, an increase of 15.6% relative to TE4-10. Comparative transcriptomics and real-time quantitative reverse transcription PCR revealed that transcriptional levels of major amylase genes, including raw starch-degrading glucoamylase gene PoxGA15A, were markedly increased in GXUR001. The hydrolysis efficiency of raw flour from cassava and corn by crude RSDE of GXUR001 reached 93.0% and 100%, respectively, after 120 h and 84 h with loading of 150 g/L of corresponding substrate. CONCLUSIONS Combining genetic engineering and random mutagenesis efficiently enhanced production of RSDE by P. oxalicum. The RSDE-hyperproducing mutant GXUR001 was generated, and its crude RSDE could efficiently degrade raw starch. This strain has great potential for enzyme preparation and further genetic engineering.
Collapse
Affiliation(s)
- Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China.
| | - Ming-Zhu Tan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Rui-Xian Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Fa-Ting Ye
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Yuan-Peng Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Xue-Mei Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Research Centre for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| |
Collapse
|
17
|
Rapid Screening of High-Yield Gellan Gum Mutants of Sphingomonas paucimobilis ATCC 31461 by Combining Atmospheric and Room Temperature Plasma Mutation with Near-Infrared Spectroscopy Monitoring. Foods 2022; 11:foods11244078. [PMID: 36553820 PMCID: PMC9777525 DOI: 10.3390/foods11244078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/23/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
In this study, an efficient mutagenesis and rapid screening method of high-yield gellan gum mutant by atmospheric and room temperature plasma (ARTP) treatment combined with Near-Infrared Spectroscopy (NIRS) was proposed. A NIRS model for the on-line detection of gellan gum yield was constructed by joint interval partial least squares (siPLS) regression on the basis of chemical determination and NIRS acquisition of gellan gum yield. Five genetically stable mutant strains were screened using the on-line NIRS detection of gellan gum yield in the fermentation from approximately 600 mutant strains induced by ARTP. Remarkably, compared with the original strain, the gellan gum yield of mutant strain 519 was 9.427 g/L (increased by 133.5%) under the optimal fermentation conditions, which was determined by single-factor and response surface optimization. Therefore, the method of ARTP mutation combined with the NIRS model can be used to screen high-yield mutant strains of gellan gum and other high-yield polysaccharide strains.
Collapse
|
18
|
Zhao S, Xiang B, Yang L, Chen J, Zhu C, Chen Y, Cui J, Hu S, Hu Y. Genetic modifications of critical regulators provide new insights into regulation modes of raw-starch-digesting enzyme expression in Penicillium. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:62. [PMID: 35641999 PMCID: PMC9158223 DOI: 10.1186/s13068-022-02162-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/20/2022] [Indexed: 11/10/2022]
Abstract
Background Starch is a very abundant and renewable carbohydrate and an important feedstock for industrial applications. However, most starch-based products are not cost-efficient due to the high energy input needed in traditional enzymatic starch conversion processes. Raw-starch-digesting enzymes (RSDEs) from filamentous fungi have great commercial value in starch processing. However, the regulatory mechanisms associated with their production in filamentous fungi remain unknown. Results In this study, we reported the novel finding that cellulolytic fungus Penicillium oxalicum 114-2 has broad RSDE activity. Four regulators, including the amylase transcription activator AmyR, the catabolite repression repressor CreA, the group III G protein α subunit PGA3, and the nonhistone chromosomal protein HepA, have been found to play a crucial regulatory role in RSDE expression. Enzymatic assays revealed that RSDE production significantly increased after the overexpression of AmyR and HepA, the deletion of CreA and the dominant activation of PGA3. RT-qPCR analysis demonstrated that there is a mutual regulation mode between the four regulators, and then formed a cascade regulation mechanism that is involved in RSDE expression. Comparative transcriptomic analysis between the wild-type strain and genetically engineered strains revealed differentially expressed genes that may mediate the RSDE expression. Conclusions The four different types of regulators were systematically investigated and found to form a regulatory network controlling RSDE gene expression. Our results provide a new insight into the regulatory mechanism of fungal amylolytic enzyme expression and offer a theoretical basis to rationally improve the RSDE yield in the future. Supplementary Information The online version contains supplementary material available at 10.1186/s13068-022-02162-6.
Collapse
|
19
|
Nonthermal Plasma Effects on Fungi: Applications, Fungal Responses, and Future Perspectives. Int J Mol Sci 2022; 23:ijms231911592. [PMID: 36232892 PMCID: PMC9569944 DOI: 10.3390/ijms231911592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/18/2022] Open
Abstract
The kingdom of Fungi is rich in species that live in various environments and exhibit different lifestyles. Many are beneficial and indispensable for the environment and industries, but some can threaten plants, animals, and humans as pathogens. Various strategies have been applied to eliminate fungal pathogens by relying on chemical and nonchemical antifungal agents and tools. Nonthermal plasma (NTP) is a potential tool to inactivate pathogenic and food-contaminating fungi and genetically improve fungal strains used in industry as enzyme and metabolite producers. The NTP mode of action is due to many highly reactive species and their interactions with biological molecules. The interaction of the NTP with living cells is believed to be synergistic yet not well understood. This review aims to summarize the current NTP designs, applications, and challenges that involve fungi, as well as provide brief descriptions of underlying mechanisms employed by fungi in interactions with the NTP components.
Collapse
|
20
|
Sharma B, Devi S, Kumar R, Kanwar SS. Screening, characterization and anti-cancer application of purified intracellular MGL. Int J Biol Macromol 2022; 217:96-110. [PMID: 35817235 DOI: 10.1016/j.ijbiomac.2022.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 04/21/2022] [Accepted: 07/04/2022] [Indexed: 11/05/2022]
Abstract
L-methionine-γ-lyase (MGL) producing bacterial isolates were screened from soil samples that further characterized as 'Klebsiella oxytoca BLM-1' by biochemical and 16S rDNA sequencing. Intracellular MGL obtained from K. oxytoca BLM-1 by sonication was purified by Octyl-Sepharose and Sephadex G-200 column chromatography. MALDI-TOF-MS analysis of protein band (Mr ~ 63 kDa) confirmed the PLP-dependence and structural similarity with MGL enzyme. Purified MGL (1.1 μg) exhibited the maximum activity in potassium phosphate buffer (80 mM; with L-met 20 mM pH 7.0) at 37 °C. That further enhanced in the presence of NaCl (2 mM), Tween-80 (1.0 %; v/v) and EDTA (5 mM). Km and Vmax for purified MGL by using L-met as substrate was found to be 5.32 mM and 0.386 U/mL/min. The purified MGL showed PLP dependence and the half-life was 365.59 min. The MGL was effective against breast cancer (MCF7), gastric adenocarcinoma and human glioblastoma (U87MG) cancer cell lines with IC50 values of purified MGL 0.041 U/mL, 0.008 U/mL and 0.009 U/mL, respectively. The U87MG, greatly affected by MGL treatment, when cultured in DMEM medium (10 mL) with PLP, homocysteine and 10 % FCS as compared to control/untransformed mouse spleen cells.
Collapse
Affiliation(s)
- Bhupender Sharma
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Sunita Devi
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Rakesh Kumar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Shamsher Singh Kanwar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India.
| |
Collapse
|
21
|
Zhao S, Mai RM, Zhang T, Feng XZ, Li WT, Wang WX, Luo XM, Feng JX. Simultaneous manipulation of transcriptional regulator CxrC and translational elongation factor eEF1A enhances the production of plant-biomass-degrading enzymes of Penicillium oxalicum. BIORESOURCE TECHNOLOGY 2022; 351:127058. [PMID: 35339654 DOI: 10.1016/j.biortech.2022.127058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Genetic engineering is an efficient approach to improve fungal bioproducts, but the specific targets are limited. In this study, it was found that the key transcription repressor CxrC of Penicillium oxalicum could physically interact with the translational elongation factor eEF1A that positively regulated the production of plant-biomass-degrading enzymes by the fungus under Avicel induction. Simultaneously deletion of the cxrC and overexpression of the eEF1A in the strain Δku70 resulted in 55.4%-314.6% higher production of cellulase, xylanase and raw-starch-degrading enzymes than that of the start strain Δku70. Transcript abundance of the genes encoding predominant cellulases, xylanases and raw-starch-degrading enzymes were significantly upregulated in the mutant ΔcxrC::eEF1A. The ΔcxrC::eEF1A enhanced saccharification efficiency of raw cassava flour by 9.3%-15.5% at early-middle stage of hydrolysis in comparison with Δku70. The obtained knowledges expanded the sources used as effective targets for increased production of plant-biomass-degrading enzymes by fungi.
Collapse
Affiliation(s)
- Shuai Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Rong-Ming Mai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Ting Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Xiang-Zhao Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Wen-Tong Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Wen-Xuan Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Xue-Mei Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Jia-Xun Feng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Research Center for Microbial and Enzyme Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China.
| |
Collapse
|
22
|
Veerana M, Yu N, Ketya W, Park G. Application of Non-Thermal Plasma to Fungal Resources. J Fungi (Basel) 2022; 8:jof8020102. [PMID: 35205857 PMCID: PMC8879654 DOI: 10.3390/jof8020102] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/15/2022] [Accepted: 01/20/2022] [Indexed: 12/21/2022] Open
Abstract
In addition to being key pathogens in plants, animals, and humans, fungi are also valuable resources in agriculture, food, medicine, industry, and the environment. The elimination of pathogenic fungi and the functional enhancement of beneficial fungi have been the major topics investigated by researchers. Non-thermal plasma (NTP) is a potential tool to inactivate pathogenic and food-spoiling fungi and functionally enhance beneficial fungi. In this review, we summarize and discuss research performed over the last decade on the use of NTP to treat both harmful and beneficial yeast- and filamentous-type fungi. NTP can efficiently inactivate fungal spores and eliminate fungal contaminants from seeds, fresh agricultural produce, food, and human skin. Studies have also demonstrated that NTP can improve the production of valuable enzymes and metabolites in fungi. Further studies are still needed to establish NTP as a method that can be used as an alternative to the conventional methods of fungal inactivation and activation.
Collapse
Affiliation(s)
- Mayura Veerana
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Korea; (M.V.); (N.Y.); (W.K.)
| | - Nannan Yu
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Korea; (M.V.); (N.Y.); (W.K.)
| | - Wirinthip Ketya
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Korea; (M.V.); (N.Y.); (W.K.)
| | - Gyungsoon Park
- Plasma Bioscience Research Center, Department of Plasma-Bio Display, Kwangwoon University, Seoul 01897, Korea; (M.V.); (N.Y.); (W.K.)
- Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, Korea
- Correspondence: ; Tel.: +82-2-940-8324
| |
Collapse
|
23
|
Yu F, Zhang M, Sun J, Wang F, Li X, Liu Y, Wang Z, Zhao X, Li J, Chen J, Du G, Xue Z. Improved Neomycin Sulfate Potency in Streptomyces fradiae Using Atmospheric and Room Temperature Plasma (ARTP) Mutagenesis and Fermentation Medium Optimization. Microorganisms 2022; 10:microorganisms10010094. [PMID: 35056543 PMCID: PMC8780280 DOI: 10.3390/microorganisms10010094] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 12/29/2021] [Accepted: 12/31/2021] [Indexed: 12/04/2022] Open
Abstract
To improve the screening efficiency of high-yield neomycin sulfate (NM) Streptomyces fradiae strains after mutagenesis, a high-throughput screening method using streptomycin resistance prescreening (8 μg/mL) and a 24-deep well plates/microplate reader (trypan blue spectrophotometry) rescreening strategy was developed. Using this approach, we identified a high-producing NM mutant strain, Sf6-2, via six rounds of atmospheric and room temperature plasma (ARTP) mutagenesis and screening. The mutant displayed a NM potency of 7780 ± 110 U/mL and remarkably stable genetic properties over six generations. Furthermore, the key components (soluble starch, peptone, and (NH4)2SO4) affecting NM potency in fermentation medium were selected using Plackett-Burman and optimized by Box-Behnken designs. Finally, the NM potency of Sf6-2 was increased to 10,849 ± 141 U/mL at the optimal concentration of each factor (73.98 g/L, 9.23 g/L, and 5.99 g/L, respectively), and it exhibited about a 40% and 100% enhancement when compared with before optimization conditions and the wild-type strain, respectively. In this study, we provide a new S. fradiae NM production strategy and generate valuable insights for the breeding and screening of other microorganisms.
Collapse
Affiliation(s)
- Fei Yu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Min Zhang
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Junfeng Sun
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Fang Wang
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Xiangfei Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
| | - Yan Liu
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Zhou Wang
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
| | - Xinrui Zhao
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Jianghua Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Jian Chen
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Guocheng Du
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; (F.Y.); (X.L.); (X.Z.); (J.L.); (J.C.)
- Science Center for Future Foods, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- Correspondence: (G.D.); (Z.X.)
| | - Zhenglian Xue
- Microorganism Fermentation Engineering and Technology Research Center of Anhui Province, College of Biologic & Food Engineering, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China; (M.Z.); (J.S.); (F.W.); (Y.L.); (Z.W.)
- Anhui Engineering Laboratory for Industrial Microbiology Molecular Breeding, Anhui Polytechnic University, 8 Middle Beijing Road, Wuhu 241000, China
- Correspondence: (G.D.); (Z.X.)
| |
Collapse
|
24
|
Song C, Han X, Yin Q, Chen D, Li H, Li S. Performance intensification of CO 2 absorption and microalgae conversion (CAMC) hybrid system via low temperature plasma (LTP) treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 801:149791. [PMID: 34467899 DOI: 10.1016/j.scitotenv.2021.149791] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/25/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
CO2 absorption and microalgae conversion (CAMC) hybrid system is a promising alternative for simultaneous carbon capture and utilization. It can not only overcome the challenge of high energy consumption solvent thermal regeneration in chemical CO2 absorption, but also enhance the carbon conversion efficiency in biological conversion process. However, the discordance between CO2 absorption and bio-conversion rate has become the key to limiting the development of CAMC system. Therefore, in this study, low temperature plasma (LTP) mutation breeding technology was used to training Chlorella strains by combining undirected mutagenesis and directional screening. Then, the mutagenic microalgae were cultivated and evaluated in CAMC system. It was found that compared with original Chlorella L166, the OD680 of mutant strain L166-M3 in CAMC system increased 7.8%, and the maximum specific growth rate improved 27.5%. The carbon sequestration rate of wild Chlorella L166 increased from 82.9% to 93.7% after mutation treatment, the activity of RubisCO, and the content of NADPH produced by photoreaction increased 37.2% and 17.2%. In addition, lipid production of L166-M3 increased to 6.89 mg/L, which was 15.4% higher than original Chlorella L166. It could be observed that LTP mutation breeding could be used as a potential method for training algae species and improve the overall performance of CAMC system.
Collapse
Affiliation(s)
- Chunfeng Song
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China.
| | - Xiaoxuan Han
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China
| | - Qingrong Yin
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China
| | - Danqing Chen
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China
| | - Haowen Li
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, PR China
| | - Shuhong Li
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, PR China
| |
Collapse
|