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Li C, Yu H, Chen S, Song L, Yuan A, Wei F, Sun D, Wang M, Xu L, He D, Liu J, Li H, Zhao J, Shen Y, Bao X. Quantification and Molecular Analysis of Antagonism between Xylose Utilization and Acetic Acid Tolerance in Glucose/Xylose Cofermentation Saccharomyces cerevisiae Strains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2025; 73:6758-6771. [PMID: 40048248 DOI: 10.1021/acs.jafc.4c12275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2025]
Abstract
For bioethanol production from lignocellulosic materials, an ideal microorganism must possess both excellent xylose utilization and a high tolerance to inhibitory compounds. However, these two traits often exhibit antagonism in recombinant xylose-utilizing Saccharomyces cerevisiae strains. In this study, we developed a quantitative metric using an aggregated parameter to evaluate the degree of this antagonism and applied it to evaluate the antagonism of three strains (LF1, LF1-6M, and 6M-15), which had been iteratively evolved in xylose and hydrolyzate environments. Transcriptomic analysis revealed that the yeast strain elevates the alert level to stresses related to DNA replication, unfolded protein, starvation, and hyperosmosis, and reduces the uptake of unimportant nutrients to have a higher acetic acid tolerance during adaptive evolution in hydrolyzate. Additionally, the Snf1p-Mig1p signaling pathway was reprogrammed, enabling the strain to utilize xylose more efficiently during adaptive evolution in xylose. We also confirmed that disruption of the glyceraldehyde-3-phosphate dehydrogenase gene TDH1 significantly shortened the time required for glucose and/or xylose cofermentation under acetic acid stress by reducing reactive oxygen species accumulation and increasing ATP production. This study offers valuable insights for developing robust and efficient S. cerevisiae strains capable of glucose/xylose cofermentation.
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Affiliation(s)
- Chenhao Li
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Hengsong Yu
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Shichao Chen
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Liyun Song
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Ai Yuan
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Fangqing Wei
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Dongming Sun
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Ming Wang
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Lili Xu
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Deyun He
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Jiao Liu
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Hongxing Li
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Jianzhi Zhao
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
| | - Yu Shen
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Xiaoming Bao
- College of Bioengineering, Key Laboratory of Shandong Microbial Engineering, State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, 3501 Daxue Road, Jinan 250353, China
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Tsegaye KN, Alemnew M, Berhane N. Saccharomyces cerevisiae for lignocellulosic ethanol production: a look at key attributes and genome shuffling. Front Bioeng Biotechnol 2024; 12:1466644. [PMID: 39386039 PMCID: PMC11461319 DOI: 10.3389/fbioe.2024.1466644] [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: 07/18/2024] [Accepted: 09/17/2024] [Indexed: 10/12/2024] Open
Abstract
These days, bioethanol research is looking at using non-edible plant materials, called lignocellulosic feedstocks, because they are cheap, plentiful, and renewable. However, these materials are complex and require pretreatment to release fermentable sugars. Saccharomyces cerevisiae, the industrial workhorse for bioethanol production, thrives in sugary environments and can handle high levels of ethanol. However, during lignocellulose fermentation, S. cerevisiae faces challenges like high sugar and ethanol concentrations, elevated temperatures, and even some toxic substances present in the pretreated feedstocks. Also, S. cerevisiae struggles to efficiently convert all the sugars (hexose and pentose) present in lignocellulosic hydrolysates. That's why scientists are exploring the natural variations within Saccharomyces strains and even figuring out ways to improve them. This review highlights why Saccharomyces cerevisiae remains a crucial player for large-scale bioethanol production from lignocellulose and discusses the potential of genome shuffling to create even more efficient yeast strains.
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Affiliation(s)
- Kindu Nibret Tsegaye
- Department of Biology, Gondar College of Teachers Education, Gondar, Ethiopia
- Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
| | - Marew Alemnew
- Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
| | - Nega Berhane
- Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
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Behnke-Borowczyk J, Korzeniewicz R, Łukowski A, Baranowska M, Jagiełło R, Bułaj B, Hauke-Kowalska M, Szmyt J, Behnke JM, Robakowski P, Kowalkowski W. Variability of Functional Groups of Rhizosphere Fungi of Norway Spruce ( Picea abies (L.) H.Karst.) in the Boreal Range: The Wigry National Park, Poland. Int J Mol Sci 2023; 24:12628. [PMID: 37628809 PMCID: PMC10454689 DOI: 10.3390/ijms241612628] [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: 06/30/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Rhizosphere microbial communities can influence plant growth and development. Natural regeneration processes take place in the tree stands of protected areas, which makes it possible to observe the natural changes taking place in the rhizosphere along with the development of the plants. This study aimed to determine the diversity (taxonomic and functional) of the rhizosphere fungal communities of Norway spruce growing in one of four developmental stages. Our research was based on the ITS region using Illumina system sequencing. Saprotrophs dominated in the studied rhizospheres, but their percentage share decreased with the age of the development group (for 51.91 from 43.13%). However, in the case of mycorrhizal fungi, an opposite trend was observed (16.96-26.75%). The most numerous genera were: saprotrophic Aspergillus (2.54-3.83%), Penicillium (6.47-12.86%), Pyrenochaeta (1.39-11.78%), pathogenic Curvularia (0.53-4.39%), and mycorrhizal Cortinarius (1.80-5.46%), Pseudotomentella (2.94-5.64%) and Tomentella (4.54-15.94%). The species composition of rhizosphere fungal communities was favorable for the regeneration of natural spruce and the development of multi-generational Norway spruce stands. The ratio of the abundance of saprotrophic and mycorrhizal fungi to the abundance of pathogens was high and promising for the durability of the large proportion of spruce in the Wigry National Park and for forest ecosystems in general.
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Affiliation(s)
- Jolanta Behnke-Borowczyk
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Robert Korzeniewicz
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Adrian Łukowski
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Marlena Baranowska
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Radosław Jagiełło
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Bartosz Bułaj
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Maria Hauke-Kowalska
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Janusz Szmyt
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Jerzy M. Behnke
- School of Life Sciences, University Park Nottingham, Nottingham NG7 2RD, UK;
| | - Piotr Robakowski
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
| | - Wojciech Kowalkowski
- Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71C, 60-625 Poznań, Poland; (R.K.); (A.Ł.); (M.B.); (R.J.); (B.B.); (M.H.-K.); (J.S.); (P.R.); (W.K.)
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Mahmood F, Nasir N. Impact of green human resource management practises on sustainable performance: serial mediation of green intellectual capital and green behaviour. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:90875-90891. [PMID: 37468777 DOI: 10.1007/s11356-023-28541-6] [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: 01/24/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023]
Abstract
This research aims to examine the factors that determine the sustainable performance of the hospitality sector of Pakistan. Particularly, it measures the effect of three green HRM practises on hotels' social, economic, and environmentally sustainable performance. The research model incorporates a serially mediated role of green intellectual capital and green behaviour to connect green training, green benefits and compensation, and green hiring with sustainable performance. The study uses the Social Cognitive Theory and resource-based view theory and analyses data using simple random sampling, confirmatory factor analysis, and structural equation modelling. Data is collected from the staff of hotels through a dyad approach by employing the self-administered 5-Likert scale questionnaire. The response rate is 99%, and findings show that green intellectual capital and green behaviour serially mediate amongst green performance, green training, sustainable social performance, sustainable economic performance, and environmentally sustainable performance. However, green hiring does not regress directly or partially with the components of sustainable performance. The study's originality develops green HRM practises based on sustainable performance in the hospitality sector in developing nations. The study's findings are important for achieving sustainable development goals, improving the hospitality sector performance, and employees' role in sustainable performance. The study is sector-specific, and future studies may choose the moderated role of factors to determine sustainable performance.
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Affiliation(s)
| | - Nadia Nasir
- Superior University Lahore, Lahore, Punjab, Pakistan
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