- BIUSTRE Home
- →
- Research Articles
- →
- Faculty of Sciences
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
| dc.contributor.author | Islam, Tajul | |
| dc.contributor.author | Gessesse, Amare | |
| dc.contributor.author | Garcia-Moyano, Antonio | |
| dc.contributor.author | Murrel, Colin | |
| dc.contributor.author | Øvreås, Lise | |
| dc.date.accessioned | 2021-10-27T13:16:38Z | |
| dc.date.available | 2021-10-27T13:16:38Z | |
| dc.date.issued | 2020-02-13 | |
| dc.identifier.citation | Islam, T. et al. (2020). A novel moderately thermophilic type ib methanotroph isolated from an alkaline thermal spring in the Ethiopian Rift Valley. Microorganisms, 8(2), 250. https://dx.doi.org/10.3390%2Fmicroorganisms8020250 | en_US |
| dc.identifier.issn | 2076-2607 | |
| dc.identifier.uri | http://repository.biust.ac.bw/handle/123456789/374 | |
| dc.description.abstract | Aerobic moderately thermophilic and thermophilic methane-oxidizing bacteria make a substantial contribution in the control of global warming through biological reduction of methane emissions and have a unique capability of utilizing methane as their sole carbon and energy source. Here, we report a novel moderately thermophilic Methylococcus-like Type Ib methanotroph recovered from an alkaline thermal spring (55.4 °C and pH 8.82) in the Ethiopian Rift Valley. The isolate, designated LS7-MC, most probably represents a novel species of a new genus in the family Methylococcaceae of the class Gammaproteobacteria. The 16S rRNA gene phylogeny indicated that strain LS7-MC is distantly related to the closest described relative, Methylococcus capsulatus (92.7% sequence identity). Growth was observed at temperatures of 30–60 °C (optimal, 51–55 °C), and the cells possessed Type I intracellular membrane (ICM). The comparison of the pmoA gene sequences showed that the strain was most closely related to M. capsulatus (87.8%). Soluble methane monooxygenase (sMMO) was not detected, signifying the biological oxidation process from methane to methanol by the particulate methane monooxygenase (pMMO). The other functional genes mxaF, cbbL and nifH were detected by PCR. To our knowledge, the new strain is the first isolated moderately thermophilic methanotroph from an alkaline thermal spring of the family Methylococcaceae. Furthermore, LS7-MC represents a previously unrecognized biological methane sink in thermal habitats, expanding our knowledge of its ecological role in methane cycling and aerobic methanotrophy. | en_US |
| dc.description.sponsorship | The Norwegian Council of Universities Committee for Developmental Research and Education (NUFU) / grant number NUFUPRO-2007 10069 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Multidisciplinary Digital Publishing Institute | en_US |
| dc.subject | Methanotrophs | en_US |
| dc.subject | Type Ib | en_US |
| dc.subject | Moderate thermophile | en_US |
| dc.subject | Alkaline thermal spring | en_US |
| dc.subject | pMMO | en_US |
| dc.subject | Ethiopian rift valley | en_US |
| dc.title | A novel moderately thermophilic type Ib methanotroph isolated from an alkaline thermal spring in the Ethiopian Rift Valley | en_US |
| dc.description.level | phd | en_US |
| dc.description.accessibility | unrestricted | en_US |
| dc.description.department | bsb | en_US |
Files in this item
This item appears in the following Collection(s)
-
Faculty of Sciences
This collection is made up of pre and post research articles created by both staff and students from Faculty of Sciences