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Diversity of biocrust-forming cyanobacteria in a semiarid gypsiferous site from Central Spain

View ORCID ProfileConcha Cano-Díaz, View ORCID ProfilePilar Mateo, View ORCID ProfileM. Ángeles Muñoz, View ORCID ProfileFernando T. Maestre
doi: https://doi.org/10.1101/136390
Concha Cano-Díaz
aDepartamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
bDepartamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, Móstoles 28933, Spain
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  • For correspondence: concepcion.cano@urjc.es
Pilar Mateo
aDepartamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
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M. Ángeles Muñoz
aDepartamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, Spain
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Fernando T. Maestre
bDepartamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, Móstoles 28933, Spain
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ABSTRACT

Cyanobacteria are an important constituent of biocrusts, communities dominated by lichens, mosses and associated microorganisms, which are prevalent in drylands worldwide and that largely determine their functioning. Despite their importance, there are large gaps in our knowledge of cyanobacteria associated to biocrusts, particularly in areas such as the Mediterranean Basin. We studied the diversity of these cyanobacteria in a gypsiferous grassland from Central Spain using both morphological identification after cultivation and genetic analyses with the 16S rRNA gene. Eight different morphotypes were observed, most of them corresponding to filamentous and one of them to unicellular cyanobacteria. We found cyanobacterial genera typical of biocrust communities, such as Microcoleus, Schizothrix or Tolypothrix, and N-fixing cyanobacteria as Scytonema or Nostoc. Genetic information allowed us to identify cultures belonging to recently described genera such as Roholtiella, Nodosilinea and Mojavia. In this study we describe two new phylotypes of Microcoleus and Scytonema, which are key genera contributing to ecosystem functioning in biocrust-dominated ecosystems worldwide.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted May 10, 2017.
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Diversity of biocrust-forming cyanobacteria in a semiarid gypsiferous site from Central Spain
Concha Cano-Díaz, Pilar Mateo, M. Ángeles Muñoz, Fernando T. Maestre
bioRxiv 136390; doi: https://doi.org/10.1101/136390
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Diversity of biocrust-forming cyanobacteria in a semiarid gypsiferous site from Central Spain
Concha Cano-Díaz, Pilar Mateo, M. Ángeles Muñoz, Fernando T. Maestre
bioRxiv 136390; doi: https://doi.org/10.1101/136390

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