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| Main Authors: | , , , , |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
PhytoKeys
2026
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41858871/ |
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| _version_ | 1868266071849435137 |
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| author | Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko |
| author_facet | Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko |
| collection | PubMed - marine biology |
| contents | Morphological and molecular characterization of sp. nov. (Bacillariophyceae, Amphipleuraceae), a new extremophilic diatom from petroleum seeps in the Polish Carpathians. Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko Crude oil is toxic in high concentrations. However, several microalgae are able to proliferate in these extreme environments. In this study, we describe diatoms in natural oil seeps in the Polish Carpathians. Only two species were found: . and . Cultures were established and characterized using morphological, and molecular data based on the L gene with secondary support from SSU rRNA sequences. . was examined using light, fluorescence, and scanning electron microscopy. This new species is closely related to , , , , , and var. . It is distinguished by small, dorsiventral valves (8.0-22.5 µm long, 3.0-5.0 µm wide) with exceptionally dense ventral striation (approximately 55 by 10 µm), the highest among related taxa. The H-shaped chloroplast is located ventrally, with lobes extending below the valves and forming a characteristic U- to V-shaped outline in apical view. In molecular phylogeny, . is closely related to , differing by 13 base pairs for a length of 1288 bp in the L gene sequence of SZCZ MR2353. The DNA sequences of the inland Polish strain of showed low genetic divergence from the available sequences from Chinese coastal waters. The adaptations that allow . and to proliferate in this extreme environment require further investigation. |
| format | Artículo científico |
| id | pubmed_41858871 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | PhytoKeys |
| record_format | pubmed |
| spellingShingle | Morphological and molecular characterization of sp. nov. (Bacillariophyceae, Amphipleuraceae), a new extremophilic diatom from petroleum seeps in the Polish Carpathians. Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko Morphological and molecular characterization of sp. nov. (Bacillariophyceae, Amphipleuraceae), a new extremophilic diatom from petroleum seeps in the Polish Carpathians. Rybak, Mateusz Peszek, Łukasz Górecka, Ewa Zadrąg-Tęcza, Renata Levkov, Zlatko Crude oil is toxic in high concentrations. However, several microalgae are able to proliferate in these extreme environments. In this study, we describe diatoms in natural oil seeps in the Polish Carpathians. Only two species were found: . and . Cultures were established and characterized using morphological, and molecular data based on the L gene with secondary support from SSU rRNA sequences. . was examined using light, fluorescence, and scanning electron microscopy. This new species is closely related to , , , , , and var. . It is distinguished by small, dorsiventral valves (8.0-22.5 µm long, 3.0-5.0 µm wide) with exceptionally dense ventral striation (approximately 55 by 10 µm), the highest among related taxa. The H-shaped chloroplast is located ventrally, with lobes extending below the valves and forming a characteristic U- to V-shaped outline in apical view. In molecular phylogeny, . is closely related to , differing by 13 base pairs for a length of 1288 bp in the L gene sequence of SZCZ MR2353. The DNA sequences of the inland Polish strain of showed low genetic divergence from the available sequences from Chinese coastal waters. The adaptations that allow . and to proliferate in this extreme environment require further investigation. |
| title | Morphological and molecular characterization of sp. nov. (Bacillariophyceae, Amphipleuraceae), a new extremophilic diatom from petroleum seeps in the Polish Carpathians. |
| url | https://pubmed.ncbi.nlm.nih.gov/41858871/ |