Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua
Abstract Outdoor microalgal cultivation for the production of valuable biofuels and bioproducts typically requires high insolation and strains with high thermal (>37°C) tolerance. While some strains are naturally thermotolerant, other strains of interest require improved performance at elevated t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-02-01
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| Series: | MicrobiologyOpen |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/mbo3.1343 |
| _version_ | 1797895107725230080 |
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| author | Alaina J. LaPanse Tyson A. Burch Jacob M. Tamburro Jesse C. Traller Agnieszka Pinowska Matthew C. Posewitz |
| author_facet | Alaina J. LaPanse Tyson A. Burch Jacob M. Tamburro Jesse C. Traller Agnieszka Pinowska Matthew C. Posewitz |
| author_sort | Alaina J. LaPanse |
| collection | DOAJ |
| description | Abstract Outdoor microalgal cultivation for the production of valuable biofuels and bioproducts typically requires high insolation and strains with high thermal (>37°C) tolerance. While some strains are naturally thermotolerant, other strains of interest require improved performance at elevated temperatures to enhance industrial viability. In this study, adaptive laboratory evolution (ALE) was performed for over 300 days using consecutive 0.5°C temperature increases in a constant temperature incubator to attain greater thermal tolerance in the industrially relevant diatom Nitzschia inconspicua str. Hildebrandi. The adapted strain was able to grow at a constant temperature of 37.5°C; whereas this constant temperature was lethal to the parental control, which had an upper‐temperature boundary of 35.5°C before adaptive evolution. Several high‐temperature clonal isolates were obtained from the evolved population following ALE, and increased temperature tolerance was observed in the clonal, parent, and non‐clonal adapted cultures. This ALE method demonstrates the development of enhanced industrial algal strains without the production of genetically modified organisms (GMOs). |
| first_indexed | 2024-04-10T07:20:06Z |
| format | Article |
| id | doaj.art-dd2b64c50e724ebb8cf7e4d2c072190e |
| institution | Directory Open Access Journal |
| issn | 2045-8827 |
| language | English |
| last_indexed | 2024-04-10T07:20:06Z |
| publishDate | 2023-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | MicrobiologyOpen |
| spelling | doaj.art-dd2b64c50e724ebb8cf7e4d2c072190e2023-02-24T13:44:33ZengWileyMicrobiologyOpen2045-88272023-02-01121n/an/a10.1002/mbo3.1343Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicuaAlaina J. LaPanse0Tyson A. Burch1Jacob M. Tamburro2Jesse C. Traller3Agnieszka Pinowska4Matthew C. Posewitz5Department of Chemistry Colorado School of Mines Golden Colorado USADepartment of Chemistry Colorado School of Mines Golden Colorado USADepartment of Quantitative Biosciences and Engineering Colorado School of Mines Golden Colorado USAGlobal Algae Innovations Lihue Hawaii USAGlobal Algae Innovations Lihue Hawaii USADepartment of Chemistry Colorado School of Mines Golden Colorado USAAbstract Outdoor microalgal cultivation for the production of valuable biofuels and bioproducts typically requires high insolation and strains with high thermal (>37°C) tolerance. While some strains are naturally thermotolerant, other strains of interest require improved performance at elevated temperatures to enhance industrial viability. In this study, adaptive laboratory evolution (ALE) was performed for over 300 days using consecutive 0.5°C temperature increases in a constant temperature incubator to attain greater thermal tolerance in the industrially relevant diatom Nitzschia inconspicua str. Hildebrandi. The adapted strain was able to grow at a constant temperature of 37.5°C; whereas this constant temperature was lethal to the parental control, which had an upper‐temperature boundary of 35.5°C before adaptive evolution. Several high‐temperature clonal isolates were obtained from the evolved population following ALE, and increased temperature tolerance was observed in the clonal, parent, and non‐clonal adapted cultures. This ALE method demonstrates the development of enhanced industrial algal strains without the production of genetically modified organisms (GMOs).https://doi.org/10.1002/mbo3.1343adaptive laboratory evolutiondiatommicroalgaethermal tolerance |
| spellingShingle | Alaina J. LaPanse Tyson A. Burch Jacob M. Tamburro Jesse C. Traller Agnieszka Pinowska Matthew C. Posewitz Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua MicrobiologyOpen adaptive laboratory evolution diatom microalgae thermal tolerance |
| title | Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua |
| title_full | Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua |
| title_fullStr | Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua |
| title_full_unstemmed | Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua |
| title_short | Adaptive laboratory evolution for increased temperature tolerance of the diatom Nitzschia inconspicua |
| title_sort | adaptive laboratory evolution for increased temperature tolerance of the diatom nitzschia inconspicua |
| topic | adaptive laboratory evolution diatom microalgae thermal tolerance |
| url | https://doi.org/10.1002/mbo3.1343 |
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