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Genetic and biochemical diversity of terpene biosynthesis in cyanobacterial strains from tropical soda lakes

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Author(s):
Machado, Mauricio J. ; Jacinavicius, Fernanda R. ; Medice, Rhuana V. ; Dextro, Rafael B. ; Feitosa, Anderson M. T. ; Weiss, Marcio B. ; Pellegrinetti, Thierry A. ; Cotta, Simone R. ; Crnkovic, Camila M. ; Fiore, Marli F.
Total Authors: 10
Document type: Journal article
Source: FRONTIERS IN MICROBIOLOGY; v. 16, p. 14-pg., 2025-07-04.
Abstract

Introduction Terpenes and terpenoids are vital components in diverse metabolic pathways, forming the terpenome-the complete spectrum of terpene-related compounds biosynthesized by an organism. Integrating bioinformatic tools has significantly enhanced the ability to assess metabolic potential by combining these computational approaches with experimental biochemical data. Furthermore, gene annotation provides critical insights into specialized targets, facilitating the identification of shared or unique features across different strains.Aims and methods This study investigates the presence of terpene compounds in cyanobacterial strains isolated from tropical soda lakes using a combination of gene mining, synteny analysis, phylogenetics, and metabolomics.Results and discussion Key enzymes, including phytoene synthase and squalene hopene cyclase, were identified, showing significant similarities and evolutionary links to gene copies in Cyanobacteria from diverse ecological environments. Metabolomic analysis complemented genomic predictions, uncovering a rich diversity of tetraterpene compounds, particularly carotenoids. Notably, triterpene hopanoids were found exclusively in a unicellular strain. These compounds show significant potential for cellular protection, metabolic adaptation, and biotechnological uses. They might support microbial communities in extreme environments, such as the saline-alkaline lakes of the Pantanal Biome in Brazil, developing unique survival and resilience strategies in these harsh conditions.Conclusion This study highlights the extensive range of insights that can be obtained by integrating genetics and biochemistry in exploring cyanobacterial diversity, especially from organisms thriving in extreme environments. (AU)

FAPESP's process: 18/24049-2 - BIOGEOGRAPHY OF MICROBIAL COMMUNITIES IN SODA LAKES OF BRAZILIAN PANTANAL
Grantee:Simone Raposo Cotta
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 24/02448-3 - Analysis of the impact of cyanobacteria inoculation on the maize rhizosphere community
Grantee:Fernanda Rios Jacinavicius
Support Opportunities: Scholarships in Brazil - Technical Training Program - Technical Training
FAPESP's process: 22/02872-4 - Integrated strategies for natural product discovery from Brazilian cyanobacteria
Grantee:Camila Manoel Crnkovic
Support Opportunities: Research Grants - Initial Project
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: 23/08974-6 - Evaluation of agroforest connected with the Amazons soil microbiology
Grantee:Rafael Barty Dextro
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 17/12644-0 - Microbial communities and functional genes involved in nutrient cycling in Nhecolândia Wetlands (MS)
Grantee:Thierry Alexandre Pellegrinetti
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)