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Biogeography and Adaptive evolution of Streptomyces Strains from saline environments
- Source :
- Scientific Reports
- Publication Year :
- 2016
- Publisher :
- Nature Publishing Group, 2016.
-
Abstract
- The genus Streptomyces is a widespread genus within the phylum Actinobacteria and has been isolated from various environments worldwide. However, little is known about whether biogeography affects distributional pattern of Streptomyces in salty environments. Such information is essential for understanding the ecology of Streptomyces. Here we analyzed four house-keeping genes (16S rRNA, rpoB, recA and atpD) and salty-tolerance related genes (ectA-ectD) of 38 Streptomyces strains isolated from saline environments in Yunnan and Xinjiang Provinces of western China. The obtained Streptomyces strains were classified into three operational taxonomic units, each comprising habitat-specific geno- and ecotype STs. In combination with expressional variations of salty-tolerance related genes, the statistical analyses showed that spatial distance and environmental factors substantially influenced Streptomyces distribution in saline environments: the former had stronger influence at large spatial scales (>700 km), whereas the latter was influential at large (>700 km) and small spatial scales (ectA-D) indicated that Streptomyces strains from salt lakes have higher expression of ectA-D genes and could accumulate larger quantities of ectoine and hydroxyectoine than strains from salt mines, which could help them resist to salinity in the hypersaline environments.
- Subjects :
- 0301 basic medicine
China
Biogeography
030106 microbiology
Ectoine
Streptomyces
Article
03 medical and health sciences
chemistry.chemical_compound
Genus
Botany
Ecosystem
Multidisciplinary
biology
Ecotype
Salt Tolerance
16S ribosomal RNA
rpoB
biology.organism_classification
Biological Evolution
Salinity
Phylogeography
chemistry
Genes, Bacterial
bacteria
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....9f9efdb70cc2fd1ebca2f584a672bd1b
- Full Text :
- https://doi.org/10.1038/srep32718