| Full text | |
| Author(s): |
Dextro, Rafael B.
;
Delbaje, Endrews
;
Freitas, Paloma N. N.
;
Geraldes, Vanessa
;
Pinto, Ernani
;
Long, Paul F.
;
Fiore, Marli F.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | LIMNOLOGY AND OCEANOGRAPHY LETTERS; v. 8, n. 5, p. 11-pg., 2023-06-20. |
| Abstract | |
Antarctica poses numerous challenges to life such as cold shock, low nutrient concentrations, and periodic desiccation over a wide range of extreme temperatures. Cyanobacteria survive this harsh environment having evolved adaptive metabolic plasticity to become the dominant primary producers. The type strain cyanobacterium Halotia branconii CENA392 was isolated from an Antarctic intertidal seashore. The complete circular genome of this strain is presented herein, which was assembled using long-sequence reads. The genome encoded some stress-related genes associated with low-temperature adaptation and biosynthesis of mycosporine-like amino acid (MAA) photoprotective compounds. Empirical experimentation demonstrated constitutive production of the MAA porphyra-334 and total carotenoids without exposure to low temperatures or ultraviolet radiation stress. Phylogenetic analysis provided insights on taxonomic placement and evolutionary history of some annotated genes. These data exemplify the importance of generating complete quality genome sequences of microorganisms isolated from extreme intertidal environments, facilitating in-depth evaluation of ecological and taxonomic inferences. (AU) | |
| FAPESP's process: | 13/07914-8 - FoRC - Food Research Center |
| Grantee: | Bernadette Dora Gombossy de Melo Franco |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 16/14227-5 - Climatic changes and environmental impacts in wetlands of Pantanal region (Brazil): quantification, control factors and long term temporal modeling |
| Grantee: | Adolpho José Melfi |
| Support Opportunities: | Research Program on Global Climate Change - Thematic Grants |
| FAPESP's process: | 21/00149-0 - Treatment and selective fractionation of cyanobacteria in blooms for the production of value-added supplies |
| Grantee: | Ernani Pinto Junior |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 19/27707-3 - Implementation of the mass spectrometry-based proteomics service at FoRC |
| Grantee: | Vanessa Sofia Mendes Geraldes |
| Support Opportunities: | Scholarships in Brazil - Technical Training Program - Technical Training |