Fottea 2018, 18(2):137-149 | DOI: 10.5507/fot.2017.024

New simple trichal cyanobacterial taxa isolated from radioactive thermal springs

Fatemeh Heidari1, Jan Zima Jr.2, Hossein Riahi1, Tomáš Hauer2,3*
1 Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
2 Institute of Botany AS CR, Centre for Phycology, Dukelská 135, Třeboň, CZ-37982, Czech Republic
3 Faculty of Science, University of South Bohemia, Branišovská 1760, České Budějovice, CZ-37005, Czech Republic

There are several places in the world where the level of natural radiation is unusually high, such as some regions of Ramsar and Abegarm-e-Mahallat in Iran. Such places are still insufficiently explored in terms of their biodiversity. In this study, strains isolated from six geothermal springs with elevated natural radiation were investigated. The highest concentration of 226Ra were 13,000 Bq.kg-1 in the soil and 130 Bq.l-1 in water respectively. The morphological and molecular analyses revealed, that the strains are not classifiable to any existing taxon. Therefore, they are described as new taxa for science. Based on results of our study, two earlier described species are transferred into newly established genus.

Keywords: Cyanobacteria, High-level natural radiation areas, thermal springs, 226Ra, Ramsar, Iran

Received: August 8, 2017; Accepted: December 12, 2017; Prepublished online: August 3, 2018; Published: November 1, 2018  Show citation

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Heidari, F., Zima, J., Riahi, H., & Hauer, T. (2018). New simple trichal cyanobacterial taxa isolated from radioactive thermal springs. Fottea18(2), 137-149. doi: 10.5507/fot.2017.024
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