Microorganismos marinos extremófilos con potencial en bioprospección

Emiliani, Anyela Vanessa Velásquez; Hoz, Marynés Quintero De La; Vergara, Eylin Yaidith Jiménez; García, Lina Marcela Blandón; Gomez‐León, Javier

doi:10.15446/rev.fac.cienc.v7n2.67360

Cited by 5 publications

(2 citation statements)

References 147 publications

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“…This result agrees with the proposed by Kim et al (2014), who calculated this value based in the complete sequence of the 16S gene allowing a more accurate estimation of the microbial diversity. In this study, 352 cultivable bacteria were isolated by classic microbiology techniques; these strains tolerate the sudden change of pressure, so they can be cataloged as piezotolerant (Velásquez et al, 2018). The cultivation of microbes is still necessary, because it contributes to the comprehensive understanding of the detailed physiology and the complex environmental processes associated with them.…”

Section: Discussionmentioning

confidence: 99%

Diversity of cultivable bacteria from deep-Sea sediments of the Colombian Caribbean and their Potential in Bioremediation

García

Marín

Quintero

et al. 2021

Preprint

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The diversity of deep-sea cultivable bacteria was studied in seven sediment samples of the Colombian Caribbean. Three hundred and fifty two marine bacteria were isolated according to its distinct morphological character on the solid media, then DNA sequences of the 16S rRNA were amplified to identify the isolated strains. The identified bacterial were arranged in three phylogenetic groups, Firmicutes, Proteobacteria, and Actinobacteria, with 34 different OTUs defined at ≥97% of similarity and 70 OTUs at ≥98.65%, being the 51% Firmicutes, 34% Proteobacteria and 15% Actinobacteria. Bacillus and Fictibacillus were the dominant genera in Firmicutes, Halomonas and Pseudomonas in Proteobacteria and Streptomyces and Micromonospora in Actinobacteria. In addition, the strains were tested for biosurfactants and lipases production, with 120 biosurfactant producing strains (mainly Firmicutes) and, 56 lipases producing strains (Proteobacteria). This report contributes to the understanding of the detailed physiology and the complex environmental processes associated with the marine deep-sea cultivable bacteria from the Colombian Caribbean.

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Section: Discussionmentioning

confidence: 99%

Diversity of cultivable bacteria from deep-Sea sediments of the Colombian Caribbean and their Potential in Bioremediation

García

Marín

Quintero

et al. 2021

Preprint

Self Cite

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“…En la actualidad se sabe que cualquier compuesto puede resultar tóxico y que muchos organismos no pueden vivir a valores de pH extremos. De la misma manera, se ha reportado la existencia de organismos extremófilos u organismos capaces de adaptarse a condiciones adversas del medio (Ramírez-Duran et al, 2006;Velásquez-Emiliani et al, 2018). En este caso se logró el aislamiento y la caracterización de cuatro hongos.…”

Section: Aspergillus Nigerunclassified

Degradación química de pet y su metabolismo por consorcios fúngicos

Moreno¹,

Químico²,

Hipólito³

et al. 2022

S. F. J. of Dev.

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Nuestro planeta se encuentra frente a un fenómeno de contaminación grave que desafortunadamente parece ser ya un proceso integral de nuestra vida cotidiana. El plástico, junto con otros contaminantes sólidos genera toneladas de residuos que ocasionan graves problemas en los ecosistemas acuáticos y terrestres porque no tienen una disposición correcta. Diariamente se escuchan noticias relacionadas con el daño que los plásticos causan a los seres vivos, especialmente a las especies marinas. Uno de los esfuerzos que se realizan para eliminar estos residuos es mediante procesos de reciclado. Dentro del reciclado se destaca la degradación química. El objetivo de este trabajo fue el de aislar e identificar mediante metodologías clásicas y de biología molecular especies microbianas capaces de crecer en una mezcla de compuestos resultantes de una degradación alcalina de plásticos de polietileno (PET). Los resultados muestran que los microorganismos aislados e identificados son en su mayoría hongos y levaduras. Por lo tanto, se iniciaron una serie de estudios tendientes a dilucidar como desarrollan capacidad para metabolizar compuestos resultantes de la degradación alcalina de PET como única fuente de carbono. Se observó que una de las formas de sobrevivir de los hongos y levaduras es mediante la conformación de consorcios microbianos para crecer bajo las condiciones de degradación y de los productos resultantes. En este trabajo se reporta el género y la especie de los hongos aislados.

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Diversity of cultivable bacteria from deep-sea sediments of the Colombian Caribbean and their potential in bioremediation

Blandón

Marín

Quintero

et al. 2022

Antonie van Leeuwenhoek

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The diversity of deep-sea cultivable bacteria was studied in seven sediment samples of the Colombian Caribbean. Three hundred and fty two marine bacteria were isolated according to its distinct morphological character on the solid media, then DNA sequences of the 16S rRNA were ampli ed to identify the isolated strains. The identi ed bacterial were arranged in three phylogenetic groups, Firmicutes, Proteobacteria, and Actinobacteria, with 34 different OTUs de ned at ≥97% of similarity and 70 OTUs at ≥98.65%, being the 51% Firmicutes, 34% Proteobacteria and 15% Actinobacteria. Bacillus and Fictibacillus were the dominant genera in Firmicutes, Halomonas and Pseudomonas in Proteobacteria and Streptomyces and Micromonospora in Actinobacteria. In addition, the strains were tested for biosurfactants and lipases production, with 120 biosurfactant producing strains (mainly Firmicutes) and, 56 lipases producing strains (Proteobacteria). This report contributes to the understanding of the detailed physiology and the complex environmental processes associated with the marine deep-sea cultivable bacteria from the Colombian Caribbean.

show abstract

Microorganismos marinos extremófilos con potencial en bioprospección

Cited by 5 publications

References 147 publications

Diversity of cultivable bacteria from deep-Sea sediments of the Colombian Caribbean and their Potential in Bioremediation

Diversity of cultivable bacteria from deep-Sea sediments of the Colombian Caribbean and their Potential in Bioremediation

Degradación química de pet y su metabolismo por consorcios fúngicos

Diversity of cultivable bacteria from deep-sea sediments of the Colombian Caribbean and their potential in bioremediation

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