Background: Trichoderma reesei is renowned for its cellulase-producing ability and is used for biofuel production from lignocellulose. In plants and fungi, cellulase production is induced by cellulose and suppressed by glucose; however, whether metformin can enhance cellulase production and mitochondrial function in T. reesei remains unclear. Metformin reduces blood glucose levels by inhibiting hepatic gluconeogenesis; therefore, it is worth investigating whether metformin transmission modulates cellulase biosynthesis in T. reesei.
Results: Metformin increased cellulase production and the transcription of cellulase-related genes. It also enhanced the concentrations of Ca in the cytosol and mitochondria and regulated the transcription levels of cellulase-related genes by modulating calcium homeostasis in T. reesei QM6a. In addition, metformin was identified as an antioxidant that can enhance cellulase activity by reducing reactive oxygen species (ROS). Our results demonstrated that metformin influences the state of mitochondria by enhancing mitochondrial activity and membrane potential to promote cellulase production.
Conclusion: Collectively, these results indicate that metformin enhances cellulase production, scavenges ROS, and protects mitochondrial activity in T. reesei.
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http://dx.doi.org/10.1186/s12934-024-02593-w | DOI Listing |
J Fungi (Basel)
December 2024
Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, SP, Brazil.
Recent research has revealed the calcium signaling significance in the production of cellulases in . While vacuoles serve as the primary calcium storage within cells, the function of vacuolar calcium transporter proteins in this process remains unclear. In this study, we conducted a functional characterization of four vacuolar calcium transport proteins in .
View Article and Find Full Text PDFMar Drugs
December 2024
Jeju Bio Research Center, Korea Institute of Ocean Science & Technology, Jeju-si 63349, Republic of Korea.
In this study, we report the molecular and enzymatic characterisation of Spg103, a novel bifunctional β-glucanase from the marine bacterium sp. J103. Recombinant Spg103 (rSpg103) functioned optimally at 60 °C and pH 6.
View Article and Find Full Text PDFYing Yong Sheng Tai Xue Bao
October 2024
College of Life Science, Jiangxi Normal University, Nanchang 330022, China.
Non-grain utilization of cultivated land threatens farmland ecological environment and soil health, which restricts grain production. To identify the key obstacle factors of cultivated soil under non-grain utilization, explore the changes of soil quality and function, and evaluate the effects of non-grain utilization on the health of farmland soil, we evaluated soil health of farmland under different non-grain utilization types (vegetables, bamboo-abandoned, nursery-grown plant-abandoned, nursery-grown plant-rice) by soil quality index and soil multifunctionality index method combined with sensitivity and resistance approaches. The results showed that soil organic carbon and total nitrogen (TN) in the bamboo-abandoned soil were 95.
View Article and Find Full Text PDFBioresour Technol
December 2024
Sanya Institute of Nanjing Agricultural University, Department of Microbiology, Key Lab of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:
High production cost of cellulases limits its commercial application on lignocellulose. Solid-state fermentation (SSF) has special advantages of water and energy conservation, however, the lack of free water and water loss during fermentation limits its application. In this paper, a constructed water-supply SSF was used to improve carboxymethyl cellulose activity and filter paper activity of 1.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Key Laboratory of Agricultural Product Processing and Quality Control of Specialty(Co-construction by Ministry and Province), School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China; Key Laboratory for Food Nutrition and Safety Control of Xinjiang Production and Construction Corps, School of Food Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China. Electronic address:
Nanocellulose stands out in numerous applications due to its excellent properties. Yet, achieving its preparation in a cost-effective, efficient, and environmentally benign manner remains challenging. This study introduces a green synthesis approach by employing a non-polluting solid acid, combined with a cellulase enzyme, for nanocellulose production.
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