Cultivation of Mycolicibacterium spp. Mutants in Miniaturized and High-Throughput Format to Characterize Their Growth, Phytosterol Conversion Ability, and Resistance to the Steroid Products.
| Autor: | Le SB; Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway., Nordborg A; Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway. Anna.Nordborg@sintef.no., Josefsen KD; Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway., Olsen SM; Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway., Sletta H; Department of Biotechnology and Nanomedicine, SINTEF Industry, Trondheim, Norway. |
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| Jazyk: | angličtina |
| Zdroj: | Methods in molecular biology (Clifton, N.J.) [Methods Mol Biol] 2023; Vol. 2704, pp. 185-200. |
| DOI: | 10.1007/978-1-0716-3385-4_11 |
| Abstrakt: | This chapter describes methods for cultivation and characterization of the growth of Mycolicibacterium spp. mutants in a microbioreactor system in the presence of steroids and/or phytosterols followed by high-throughput mass spectrometry analysis to describe their ability to convert phytosterols into the target steroid androstenedione (AD). We focus on Mycolicibacterium neoaurum NRRL B-3805 ΔkstD which can convert phytosterol into androstenedione (AD) as one of its major steroid products, and mutants thereof with increased tolerance towards this end-product. By using BioLector 48-well plates with optodes at the bottom of each well, bacterial growth can be monitored online despite the turbidity of the growth medium resulting from non-dissolved phytosterol and steroid particles. To cope with the large number of samples that accumulate during growth experiments in microbioreactors and similar formats (e.g., microtiter plates), protocols for extraction and subsequent RapidFire-MS analysis are presented. This reduces the analysis time per sample to 10 s from 10 min required for regular LC-MS analysis. (© 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.) |
| Databáze: | MEDLINE |
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