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Microbial Diversity and Novelty Along Salinity Gradients

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Encyclopedia of Metagenomics

Synonyms

Genetic novelty; Hypersaline environments; Microbial biodiversity; Salt gradient

Definition

Microbial diversity is determined by the genetic diversity of ribosomal genes 16S for bacteria and archaea and 18S for protists. Microbial novelty indicates the uniqueness of the identity level of a given sequence based on BLAST search comparison against the ribosomal gene sequences previously reported in GenBank (usually <97% identity). The gradient of saline concentrations explored here ranged c. 20 times from 20 up to 370 g/L, when NaCl precipitates.

Introduction

Coastal salterns and inland salt lakes are widely distributed ecosystems around the world. In the Mediterranean region, there has been a long tradition to use solar saltern systems for salt production in seawater evaporation ponds. Multipond solar salterns are semi-artificial coastal systems designed to harvest common salt (NaCl) from seawater. Sequential precipitation of CaCO3 and CaSO4occurs during the first stages of...

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References

  • Benlloch S, López-López A, Casamayor EO, et al. Prokaryotic genetic diversity throughout the salinity gradient of a coastal solar saltern. Environ Microbiol. 2002;4:349–60.

    Article  PubMed  Google Scholar 

  • Casamayor EO, Massana R, Benlloch S, et al. Changes in archaeal, bacterial and eukaryal assemblages along a salinity gradient by comparison of genetic fingerprinting methods in a multi-pond solar saltern. Environ Microbiol. 2002;4:338–48.

    Article  PubMed  Google Scholar 

  • Casamayor EO, Triadó-Margarit X, Castañeda C. Microbial biodiversity in saline shallow lakes of the Monegros Desert, Spain. FEMS Microbiol Ecol. 2013;85:503–18.

    Article  CAS  PubMed  Google Scholar 

  • Demergasso C, Casamayor EO, Galleguillos P, et al. Distribution of prokaryotic genetic diversity in athalassohaline lakes from the Atacama Desert, Northern Chile. FEMS Microbiol Ecol. 2004;48:57–69.

    Article  CAS  PubMed  Google Scholar 

  • Demergasso C, Escudero L, Casamayor EO, et al. Novelty and spatio-temporal heterogeneity in the bacterial diversity of hypersaline Lake Tebenquiche (Salar de Atacama). Extremophiles. 2008;12:491–504.

    Article  CAS  PubMed  Google Scholar 

  • Estrada M, Hendriksen P, Gasol JM, et al. Diversity of planktonic photoautotrophic microorganisms along a salinity gradient as depicted by microscopy, flow cytometry, pigment analysis and DNA-based methods. FEMS Microbiol Ecol. 2004;49:281–93.

    Article  CAS  PubMed  Google Scholar 

  • Gasol JM, Casamayor EO, Join I, et al. Control of heterotrophic prokaryotic abundance and growth rate in hypersaline planktonic environments. Aquat Microb Ecol. 2004;34:193–206.

    Article  Google Scholar 

  • Guixa-Boixereu N, Calderón-Paz JI, Heldal M, et al. Viral lysis and bacterivory as prokaryotic loss factors along a salinity gradient. Aquat Microb Ecol. 1996;11:215–27.

    Article  Google Scholar 

  • Oren A. Halophilic microorganisms and their environments. Dordrecht: Kluwer, Scientific Publishers; 2002.

    Book  Google Scholar 

  • Triadó-Margarit X, Casamayor EO. High genetic diversity and high novelty in planktonic protists inhabiting inland and coastal high salinity water bodies. FEMS Microbiol Ecol. 2013;85:27–36.

    Article  PubMed  Google Scholar 

  • Williams WD. The largest, highest and lowest lakes of the world: saline lakes. Verh Internat Verein Limnol. 1996;26:61–79.

    Google Scholar 

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Correspondence to Emilio Ortega Casamayor .

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Casamayor, E.O., Triadó-Margarit, X. (2013). Microbial Diversity and Novelty Along Salinity Gradients. In: Nelson, K. (eds) Encyclopedia of Metagenomics. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6418-1_805-1

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  • DOI: https://doi.org/10.1007/978-1-4614-6418-1_805-1

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