Venegas-Casanova, Edmundo;
Gavidia-Valencia, José G;
Curo-Vallejos, Yuri F;
Ríos, Miguel;
Chavez-Abanto, Luis A;
Aro-Díaz, Ruben J;
Escobar, Jorge;
Rubio-López, Felipe Ruben;
Uribe-Villarreal, José;
Martinez, José L;
Rengifo-Penadillos, Roger A.
The conversion factor of nitrogen to proteins and isoflavones present in Glycine max was determined. For the determination of the conversion factor, we worked with solubilizing the proteins at alkaline pH and then extracting them with acidic pH. The proteins were iden...
ABSTRACT Objective This study aimed to evaluate if the protein intake recommendations for obese critically ill requiring mechanical ventilation are sufficient to promote a positive or neutral nitrogen balance. Methods Cross-sectional study that included 25 obese, ≥18 years old, undergoing mechani...
The budding yeast Saccharomyces cerevisiae has been considered for more than 20 years as a premier model organ- ism for biological sciences, also being the main microorganism used in wide industrial applications, like alcoholic fermentation in the winemaking process. Grape juice is a challenging environm...
ABSTRACT To mitigate the deleterious effects of abiotic stress, the use of plant growth-promoting bacteria along with diazotrophic bacteria has been increasing. The objectives of this study were to investigate the key enzymes related to nitrogen and carbon metabolism in the biological nitrogen fixation p...
Actinobacteria/fisiología,
Inoculantes Agrícolas/fisiología,
Aminoácidos/metabolismo,
Bradyrhizobium/fisiología,
Carbono/metabolismo,
Nitrógeno/metabolismo,
Fijación del Nitrógeno,
Raíces de Plantas/crecimiento & desarrollo,
Raíces de Plantas/metabolismo,
Raíces de Plantas/microbiología,
Estrés Salino,
Cloruro de Sodio/análisis,
Cloruro de Sodio/metabolismo,
Microbiología del Suelo,
Vigna/crecimiento & desarrollo,
Vigna/metabolismo,
Vigna/microbiología
ABSTRACT A bacterium isolated from Sterkfontein dam was confirmed to produce bioflocculant with excellent flocculation activity. The 16S rDNA nucleotide sequence analyses revealed the bacteria to have 99% similarity to Streptomyces platensis strain HBUM174787 and the sequence was deposited in the Genbank...
Proteínas Bacterianas/genética,
Proteínas Bacterianas/metabolismo,
Carbono/metabolismo,
Floculación,
Nitrógeno/metabolismo,
Ríos/química,
Streptomyces/química,
Streptomyces/genética,
Streptomyces/aislamiento & purificación,
Streptomyces/metabolismo,
Aguas Residuales/química,
Microbiología del Agua,
Purificación del Agua
ABSTRACT In order for the use of biological carotenoids to become feasible, it is necessary to have adequate low cost sources and improved methods of cultivation. The aim of this study was to evaluate the effect of supplementation with nitrogen, phosphorus, zinc, and magnesium, on the biomass and caroten...
Biomasa,
Carotenoides/biosíntesis,
Medios de Cultivo/síntesis química,
Medios de Cultivo/química,
Medios de Cultivo/metabolismo,
Nitrógeno/metabolismo,
Rhodotorula/genética,
Rhodotorula/crecimiento & desarrollo,
Rhodotorula/metabolismo,
Saccharum/metabolismo,
Saccharum/microbiología
ABSTRACT Clavulanic acid is a β-lactam compound with potent inhibitory activity against β-lactamases. Studies have shown that certain amino acids play essential roles in CA biosynthesis. However, quantitative evaluations of the effects of these amino acids are still needed in order to improve C...
Ácido Clavulánico/biosíntesis,
Medios de Cultivo/química,
Medios de Cultivo/metabolismo,
Ácido Glutámico/análisis,
Ácido Glutámico/metabolismo,
Nitrógeno/análisis,
Nitrógeno/metabolismo,
Ornitina/análisis,
Ornitina/metabolismo,
Streptomyces/genética,
Streptomyces/metabolismo
Wu, Xiukun;
Zhang, Gaosen;
Zhang, Wei;
Liu, Guangxiu;
Chen, Tuo;
Wang, Yun;
Long, Haozhi;
Tai, Xisheng;
Zhang, Baogui;
Li, Zhongqin.
Abstract As a glacier retreats, barren areas are exposed, and these barren areas are ideal sites to study microbial succession. In this study, we characterized the soil culturable bacterial communities and biochemical parameters of early successional soils from a receding glacier in the Tianshan Mountain...
Bacterias/clasificación,
Bacterias/genética,
Bacterias/crecimiento & desarrollo,
Bacterias/aislamiento & purificación,
China,
ADN Bacteriano/genética,
ADN Ribosómico/genética,
Cubierta de Hielo/química,
Cubierta de Hielo/microbiología,
Nitrógeno/análisis,
Nitrógeno/metabolismo,
Filogenia,
ARN Ribosómico 16S/genética,
Análisis de Secuencia de ADN,
Suelo/química,
Microbiología del Suelo
Background: A new ι-carrageenase-producing strain was screened from mangroves and authenticated as Pseudoalteromonas carrageenovora ASY5 in our laboratory. The potential application of this new strain was evaluated. Results: Medium compositions and culturing conditions in shaking flask fermentation were...
Hidrólisis,
Pseudoalteromonas/enzimología,
Glicósido Hidrolasas/metabolismo,
Proteínas Bacterianas/metabolismo,
Fermentación,
Temperatura,
Concentración de Iones de Hidrógeno,
Carragenina/biosíntesis,
Espectrometría de Masa por Ionización de Electrospray,
Nitrógeno/metabolismo,
Carbono/metabolismo,
Oligosacáridos/biosíntesis
ABSTRACT Variations in microbial communities promoted by alterations in environmental conditions are reflected in similarities/differences both at taxonomic and functional levels. Here we used a natural gradient within mangroves from seashore to upland, to contrast the natural variability in bacteria, cy...
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
Bacterias/metabolismo,
Biodiversidad,
Nitrógeno/metabolismo,
Petróleo/análisis,
Petróleo/metabolismo,
Filogenia,
Suelo/química,
Microbiología del Suelo,
Contaminantes del Suelo/análisis,
Contaminantes del Suelo/metabolismo,
Humedales
