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Alkaline phosphatases in microbialites and bacterioplankton from Alchichica soda lake, Mexico.
- Source :
-
FEMS microbiology ecology [FEMS Microbiol Ecol] 2014 Nov; Vol. 90 (2), pp. 504-19. Date of Electronic Publication: 2014 Oct 02. - Publication Year :
- 2014
-
Abstract
- Dissolved organic phosphorus utilization by different members of natural communities has been closely linked to microbial alkaline phosphatases whose affiliation and diversity is largely unknown. Here we assessed genetic diversity of bacterial alkaline phosphatases phoX and phoD, using highly diverse microbial consortia (microbialites and bacterioplankton) as study models. These microbial consortia are found in an oligo-mesotrophic soda lake with a particular geochemistry, exhibiting a low calcium concentration and a high Mg : Ca ratio relative to seawater. In spite of the relative low calcium concentration in the studied system, our results highlight the diversity of calcium-based metallophosphatases phoX and phoD-like in heterotrophic bacteria of microbialites and bacterioplankton, where phoX was the most abundant alkaline phosphatase found. phoX and phoD-like phylotypes were more numerous in microbialites than in bacterioplankton. A larger potential community for DOP utilization in microbialites was consistent with the TN : TP ratio, suggesting P limitation within these assemblages. A cross-system comparison indicated that diversity of phoX in Lake Alchichica was similar to that of other aquatic systems with a naturally contrasting ionic composition and trophic state, although no phylotypes were shared among systems.<br /> (© 2014 Federation of European Microbiological Societies. Published by John Wiley & Sons Ltd. All rights reserved.)
- Subjects :
- Alkaline Phosphatase genetics
Alkaline Phosphatase metabolism
Bacteria genetics
Bacteria isolation & purification
Genetic Variation
Mexico
Molecular Sequence Data
Phylogeny
Salinity
Alkaline Phosphatase analysis
Bacteria classification
Bacteria enzymology
Lakes chemistry
Lakes microbiology
Phosphorus metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1574-6941
- Volume :
- 90
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- FEMS microbiology ecology
- Publication Type :
- Academic Journal
- Accession number :
- 25112496
- Full Text :
- https://doi.org/10.1111/1574-6941.12411