Towards a Latin American and Caribbean international census of marine microbes (LACar ? ICoMM): overview and discussion on some current research directions

Artigas, Luis Felipe; Otero, Ernesto; Paranhos, Rodolfo; Gómez, Martha L.; Piccini, Claudia; Costagliola, M.; Silva, R.; Suárez, Paula; Gallardo, Víctor A.; Hernández‐Becerril, David U.; Chistoserdov, Andrei Y.; Vieira, Ricardo P.; Cenci, Maria; Ternon, Jean-François; Beker, Béatriz; Thyssen, Mélilotus; Dionisi, Hebe M.; Marinho-Jaussaud, I. do Rosario; Gonzalez, Alessandra M.; Hurtado, Carlos del Cairo; Parra, Juan Pablo; Alonso, Cecilia; Hozbor, C.; Peressutti, Silvia R.; Negri, Renzo; Espinoza, Claudia; Cardoso, Alexander Machado; Martins, Orlando B.; Covacevich, Fernanda; Berón, Christian; Salerno, Gonzalo

doi:10.15517/rbt.v56i0.5587

Cited by 4 publications

(6 citation statements)

References 80 publications

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“…Synechococcus were identified not only in coastal waters, as reported in EPEA, a permanent coastal station located off Mar del Plata [37], but also in the shelf and oceanic waters.…”

Section: Discussionsupporting

confidence: 54%

The First Molecular Characterization of Picocyanobacteria from the Argentine Sea

Perez-Cenci

Caló

Silva

et al. 2014

Journal of Marine Biology

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Picocyanobacteria are abundant throughout the world's oceans. Particularly, it has been reported that Synechococcus strains have a wide latitudinal distribution, from polar to tropical waters. However, their molecular characterization in the Southwest Atlantic Ocean is still missing. We analyzed Synechococcus genetic diversity in a sector of the Argentine Sea, one of the richest biological areas of the world oceans. 16S rRNA amplicons obtained after PCR amplification of environmental DNA extracted from water samples of this area were used for DGGE and sequenced. Only Synechococcus sequences could be retrieved. On the other hand, we isolated two Synechococcus strains from the environment. Our analyses revealed that the clade I group was widespread from latitude 38 ∘ S to 48 ∘ S and that can coexist with clade IV strains in shelf waters. The cooccurrence of these two clades may be related to an adaptation to high-nutrient/low-temperature waters. Our data are the first report on Synechococcus ecotypes that would be important contributors to phytoplankton biomass in the Argentine Sea, one of the richest biological areas of the world oceans.

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“…Synechococcus were identified not only in coastal waters, as reported in EPEA, a permanent coastal station located off Mar del Plata [37], but also in the shelf and oceanic waters.…”

Section: Discussionsupporting

confidence: 54%

The First Molecular Characterization of Picocyanobacteria from the Argentine Sea

Perez-Cenci

Caló

Silva

et al. 2014

Journal of Marine Biology

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“…On the other hand, phytoplankton studies, together with food web and biogeochemical flux estimations, have intensively been carried out in the upwelling system off Chile [368] – [372] and in southern Chilean fjords [373] . Phyto- and bacterioplankton dynamics are also studied in French Guiana coastal and shelf systems under direct Amazon influence [43] , as well as in subtropical lagoons in southern Brazil, focusing in phytoplankton dynamics and trophic fate [374] , [375] , and in South Atlantic oceanographic frontal systems [376] – [378] . The diversity of picoeukarya and cyanobacteria was investigated at intermediate shelf stations in the Patagonian system [43] [40] .…”

Section: Resultsmentioning

confidence: 99%

“…Artigas et al [43] summarized some current studies on microbial diversity in both the Caribbean and South American regions. LACar has also submitted a set of samples to the ICoMM “454-tag sequencing” program in 2007, a metagenomics project especially targeting Eubacteria and Archaea in a latitudinal gradient from the southwest Atlantic (Patagonian littoral and shelf sediments and waters) to the Caribbean (Puerto Rico sediment and bays), including large estuarine systems (Río de la Plata and Amazon), and coastal brackish waters of Laguna de Rocha and Guanabara Bay.…”

Section: Introductionmentioning

confidence: 99%

“…Another regional joint effort in the region is the Latin American and Caribbean International Census of Marine Microbes (LACar-ICoMM) network launched in 2006 to evaluate the research capabilities and to identify complementary strengths and possibilities for enhanced collaboration. Artigas et al [43] summarized some current studies on microbial diversity in both the Caribbean and South American regions. LACar has also submitted a set of samples to the ICoMM “454-tag sequencing” program in 2007, a metagenomics project especially targeting Eubacteria and Archaea in a latitudinal gradient from the southwest Atlantic (Patagonian littoral and shelf sediments and waters) to the Caribbean (Puerto Rico sediment and bays), including large estuarine systems (Río de la Plata and Amazon), and coastal brackish waters of Laguna de Rocha and Guanabara Bay.…”

Section: Introductionmentioning

confidence: 99%

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Marine Biodiversity in the Atlantic and Pacific Coasts of South America: Knowledge and Gaps

et al. 2011

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International audienceThe marine areas of South America (SA) include almost 30,000 km of coastline and encompass three different oceanic domains--the Caribbean, the Pacific, and the Atlantic--ranging in latitude from 12°N to 55°S. The 10 countries that border these coasts have different research capabilities and taxonomic traditions that affect taxonomic knowledge. This paper analyzes the status of knowledge of marine biodiversity in five subregions along the Atlantic and Pacific coasts of South America (SA): the Tropical East Pacific, the Humboldt Current, the Patagonian Shelf, the Brazilian Shelves, and the Tropical West Atlantic, and it provides a review of ecosystem threats and regional marine conservation strategies. South American marine biodiversity is least well known in the tropical subregions (with the exception of Costa Rica and Panama). Differences in total biodiversity were observed between the Atlantic and Pacific oceans at the same latitude. In the north of the continent, the Tropical East Pacific is richer in species than the Tropical West Atlantic, however, when standardized by coastal length, there is very little difference among them. In the south, the Humboldt Current system is much richer than the Patagonian Shelf. An analysis of endemism shows that 75% of the species are reported within only one of the SA regions, while about 22% of the species of SA are not reported elsewhere in the world. National and regional initiatives focusing on new exploration, especially to unknown areas and ecosystems, as well as collaboration among countries are fundamental to achieving the goal of completing inventories of species diversity and distribution. These inventories will allow accurate interpretation of the biogeography of its two oceanic coasts and latitudinal trends, and will also provide relevant information for science based policie

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“…There is a strong regional effort directed to the understanding and evaluation of the biological removal of hydrocarbons as a step in the development of in situ bioremediation strategies. In this sense, bacterial and archaeal diversity in polluted coastal areas of oil-producing countries in South America have been reported (Vieira et al Artigas et al 2008 ) as well as their role in bioremediation (Gomes et al 2008 ; reviewed in Dionisi et al 2012 ). The presence of typical hydrocarbondegrading bacteria inhabiting marine environments is not an exception in coasts of South America (Brito et al 2006 ;dos Santos et al 2011 ;Isaac et al 2013 ).…”

mentioning

confidence: 99%

Molecular Markers in Hydrocarbon Degradation: State of the Art and Prospective in South America

Lanfranconi

Alvarez

2014

Bioremediation in Latin America

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In South America petroleum production is one of the principal economic resources for various countries. Although petroleum and its derivatives fuel daily life, the major concern to their use is related to the high environmental risk of oil spills. Whether it is a large and acute or small and frequent exposure, the ecosystem must adapt to the scenario and rely on those microorganisms capable of regenerating the system. Bacteria have a central role in bioremediation and different catabolic pathways involved in saturated and aromatic hydrocarbons removal have been identifi ed from isolated strains. The traditional isolation and pure cultivation approach allows a thorough physiological study of the process occurring in these strains. However, the accuracy in linking composition to function using this approach is debatable. Culture-independent techniques applied to the metabolism of components of petroleum can be used to discover novel genes and catabolic routes directly from the environment. This chapter presents an updated overview of different approaches and molecular markers used in hydrocarbon degradation in coasts from South America as well as those methods already used outside the geographic scope of this work that still need to be acknowledged in this region.

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Towards a Latin American and Caribbean international census of marine microbes (LACar ? ICoMM): overview and discussion on some current research directions

Cited by 4 publications

References 80 publications

The First Molecular Characterization of Picocyanobacteria from the Argentine Sea

The First Molecular Characterization of Picocyanobacteria from the Argentine Sea

Marine Biodiversity in the Atlantic and Pacific Coasts of South America: Knowledge and Gaps

Molecular Markers in Hydrocarbon Degradation: State of the Art and Prospective in South America

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