Título : Elucidating taxonomic and functional differences between the presence and activity of the microorganisms that inhabit the phycosphere of Microcystis spp. blooms.
Autor(es) : Croci, Carolina
Martínez de la Escalera, Gabriela
Kruk, Carla
Segura, Angel
Piccini, Claudia
Fecha de publicación : oct-2024
Tipo de publicación: Artículo
Versión: Borrador
Areas del conocimiento : Ciencias Naturales y Exactas
Ciencias Biológicas
Biología Celular, Microbiología
Otros descriptores : Microcystis
Labor division
Resumen : As it is well known, the constant climate warming and eutrophication of water bodies, had led to an increase in cyanobacterial blooms worldwide, especially from the Microcystis genus. Due to the nature of Microcystis colonies, which are surrounded by a mucilaginous layer populated by microorganisms, knowing about the interplay between the cyanobacteria and their microbiome, the role of each partner in Microcystis dynamics and their evolutionary history is useful for bloom management and prediction. With that in mind, in this study we evaluate if the heterotrophic bacterial community structure corresponded with the active taxa using 16S gene metabarcoding of gDNA and cDNA, respectively, of a size fractionated sample taken from a site within the Salto Grande reservoir in the Uruguay River during a Microcystis spp. bloom. Firstly, it was seen that the diversity was higher in the smallest fractions than in the largest ones, and that was accompanied by a decrease in activity of the majority of taxa. Also, a very interesting fact was that besides it was definitely a Microcystis bloom (microscopic images, not shown), when the data was analyzed Microcystis was not the most abundant taxon, and did not even reach 15%, but was the most active one. This study is a novelty mainly because of the data generated related to activity (cDNA), which was never done before for this kind of sample.
URI / Handle: https://hdl.handle.net/20.500.12381/3486
Institución responsable del proyecto: Instituto de Investigaciones Biológicas Clemente Estable
Universidad de la República. Centro Universitario Regional del Este
Financiadores: Agencia Nacional de Investigación e Innovación
Identificador ANII: FCE_1_2019_1_156308
Nivel de Acceso: Acceso restringido
Aparece en las colecciones: Instituto de Investigaciones Biológicas Clemente Estable

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