A phenomenological model of non-genomic variability of luminescent bacterial cells
The light emitted by a luminescent bacterium serves as a unique native channel of information regarding the intracellular processes within the individual cell. In the presence of highly sensitive equipment, it is possible to obtain the distribution of bacterial culture cells by the intensity of ligh...
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| Format: | Article |
| Language: | English |
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Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
2023-12-01
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| Series: | Вавиловский журнал генетики и селекции |
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| Online Access: | https://vavilov.elpub.ru/jour/article/view/3990 |
| _version_ | 1797213926662864896 |
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| author | S. I. Bartsev |
| author_facet | S. I. Bartsev |
| author_sort | S. I. Bartsev |
| collection | DOAJ |
| description | The light emitted by a luminescent bacterium serves as a unique native channel of information regarding the intracellular processes within the individual cell. In the presence of highly sensitive equipment, it is possible to obtain the distribution of bacterial culture cells by the intensity of light emission, which correlates with the amount of luciferase in the cells. When growing on rich media, the luminescence intensity of individual cells of brightly luminous strains of the luminescent bacteria Photobacterium leiognathi and Ph. phosporeum reaches 104–105 quanta/s. The signal of such intensity can be registered using sensitive photometric equipment. All experiments were carried out with bacterial clones (genetically homogeneous populations). A typical dynamics of luminous bacterial cells distributions with respect to intensity of light emission at various stages of batch culture growth in a liquid medium was obtained. To describe experimental distributions, a phenomenological model that links the light of a bacterial cell with the history of events at the molecular level was constructed. The proposed phenomenological model with a minimum number of fitting parameters (1.5) provides a satisfactory description of the complex process of formation of cell distributions by luminescence intensity at different stages of bacterial culture growth. This may be an indication that the structure of the model describes some essential processes of the real system. Since in the process of division all cells go through the stage of release of all regulatory molecules from the DNA molecule, the resulting distributions can be attributed not only to luciferase, but also to other proteins of constitutive (and not only) synthesis. |
| first_indexed | 2024-03-07T16:03:47Z |
| format | Article |
| id | doaj.art-227d37a7d3864611b9174b2154d65e88 |
| institution | Directory Open Access Journal |
| issn | 2500-3259 |
| language | English |
| last_indexed | 2024-04-24T11:06:02Z |
| publishDate | 2023-12-01 |
| publisher | Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders |
| record_format | Article |
| series | Вавиловский журнал генетики и селекции |
| spelling | doaj.art-227d37a7d3864611b9174b2154d65e882024-04-11T15:31:06ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592023-12-0127788488910.18699/VJGB-23-1021417A phenomenological model of non-genomic variability of luminescent bacterial cellsS. I. Bartsev0Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center SB RAS”; Siberian Federal UniversityThe light emitted by a luminescent bacterium serves as a unique native channel of information regarding the intracellular processes within the individual cell. In the presence of highly sensitive equipment, it is possible to obtain the distribution of bacterial culture cells by the intensity of light emission, which correlates with the amount of luciferase in the cells. When growing on rich media, the luminescence intensity of individual cells of brightly luminous strains of the luminescent bacteria Photobacterium leiognathi and Ph. phosporeum reaches 104–105 quanta/s. The signal of such intensity can be registered using sensitive photometric equipment. All experiments were carried out with bacterial clones (genetically homogeneous populations). A typical dynamics of luminous bacterial cells distributions with respect to intensity of light emission at various stages of batch culture growth in a liquid medium was obtained. To describe experimental distributions, a phenomenological model that links the light of a bacterial cell with the history of events at the molecular level was constructed. The proposed phenomenological model with a minimum number of fitting parameters (1.5) provides a satisfactory description of the complex process of formation of cell distributions by luminescence intensity at different stages of bacterial culture growth. This may be an indication that the structure of the model describes some essential processes of the real system. Since in the process of division all cells go through the stage of release of all regulatory molecules from the DNA molecule, the resulting distributions can be attributed not only to luciferase, but also to other proteins of constitutive (and not only) synthesis.https://vavilov.elpub.ru/jour/article/view/3990non-genomic variabilityphenomenological modelluminescent bacteria |
| spellingShingle | S. I. Bartsev A phenomenological model of non-genomic variability of luminescent bacterial cells Вавиловский журнал генетики и селекции non-genomic variability phenomenological model luminescent bacteria |
| title | A phenomenological model of non-genomic variability of luminescent bacterial cells |
| title_full | A phenomenological model of non-genomic variability of luminescent bacterial cells |
| title_fullStr | A phenomenological model of non-genomic variability of luminescent bacterial cells |
| title_full_unstemmed | A phenomenological model of non-genomic variability of luminescent bacterial cells |
| title_short | A phenomenological model of non-genomic variability of luminescent bacterial cells |
| title_sort | phenomenological model of non genomic variability of luminescent bacterial cells |
| topic | non-genomic variability phenomenological model luminescent bacteria |
| url | https://vavilov.elpub.ru/jour/article/view/3990 |
| work_keys_str_mv | AT sibartsev aphenomenologicalmodelofnongenomicvariabilityofluminescentbacterialcells AT sibartsev phenomenologicalmodelofnongenomicvariabilityofluminescentbacterialcells |