Variations of alcohol dehydrogenase activity and fermentative pyruvate,ethanol production of F. equiseti and F. acuminatum depend on the yeast extract and urea concentrations |
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| Institution: | 1. University of Dokuz Eylul, Faculty of Education, Department of Chemistry, 35150 Buca, Izmir, Turkey;2. University of Hacettepe, Faculty of Education, Department of Biology, 06532 Beytepe, Ankara, Turkey;1. Center for Process Systems Engineering, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, England, UK;2. Department of Biology & Biochemistry, University of Bath, Bath, Somerset, England, UK;1. Department of Biomedical Sciences, Oregon State University, Corvallis, OR 97331, USA;2. Department of Microbiology, Oregon State University, Corvallis, OR 97331, USA;3. Department of Food Science and Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand;4. Medical Laboratories Department, College of Science Al-Zulfi, Majmaah University, Saudi Arabia;5. Laboratorio de Mecanismos de Patogénesis Bacteriana, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile;3. Section of Nephrology, Departments of Medicine, University of Illinois, Chicago, Illinois 60612;8. Departments of Microbiology and Immunology, University of Illinois, Chicago, Illinois 60612;4. Section of Nephrology, Department of Medicine, Jesse Brown Veterans Affairs Hospital, Chicago, Illinois 60612;5. Section of Nephrology, Department of Medicine, Stony Brook University Medical Center, Stony Brook, New York 11794;6. Northport Veterans Affairs Hospital, Northport, New York 11768;12. Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, Montreal, Quebec H4A 3J1, Canada;1. Department of Life Sciences, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia;2. Biosciences Core Lab, King Abdullah University of Science and Technology, Thuwal, Jeddah, Saudi Arabia;3. Biomeritz, Research consulting and Distribution Company, Chennai, India |
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| Abstract: | In this study, pyruvate production of Fusarium equiseti was significantly increased when the yeast extract concentration was raised from 5 to 25 g/L while it was increased to only up to 10 g/L yeast extract in F. acuminatum. Upon supplementation with urea as an alternative nitrogen source, production of pyruvate for both of the Fusarium species were decreased with respect to increase in urea concentration in medium. On the other hand, ethanol production and alcohol dehydrogenase activity of F. equiseti were decreased approximately 1.9- and 1.6-fold with an increase in yeast concentration from 5 to 25 whereas the levels of F. acuminatum were increased 2.3- and 1.8-fold, respectively. In addition, ethanol productions and ADH activities in F. equiseti and F. acuminatum significantly increased on the 12th day up to 15 and 25 g/L urea concentrations, respectively. However, they were significantly decreased under these conditions at higher nitrogen sources. In addition, ethanol production and alcohol dehydrogenase activity in urea supplemented medium were higher than yeast extract supplemented. The results may suggest that the pyruvate, ethanol production and ADH enzyme activity variations and balance between aerobic and anaerobic respiration in F. equiseti and F. acuminatum were effected from yeast extract and urea concentrations in the nutrient medium. |
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