Articles publicats Departament de Biologia: Enviaments recents
Ara mostrant els elements 61-80 de 408
Stream Biofilm Responses to Flow Intermittency: From Cells to Ecosystems
Temporary streams are characterized by the alternation of dry and wet hydrological phases, creating both a harsh environment for the biota as well as a high diversity of opportunities for adaptation. These systems are ...
Insights in the ecology and evolutionary history of the Miscellaneous Crenarchaeotic Group lineage
Members of the archaeal Miscellaneous Crenarchaeotic Group (MCG) are among the most successful microorganisms on the planet. During its evolutionary diversification, this very diverse group has managed to cross the ...
Occurrence of antibiotics and antibiotic resistance genes in hospital and urban wastewaters and their impact on the receiving river
Antibiotic resistance has become a major health concern; thus, there is a growing interest in exploring the occurrence of antibiotic resistance genes (ARGs) in the environment as well as the factors that contribute to their ...
Implications of Downstream Nitrate Dosage in anaerobic sewers to control sulfide and methane emissions
Nitrate (NO3-) is commonly dosed in sewer systems to reduce sulfide (H2S) and methane (CH4) produced in anaerobic rising main pipes. However, anoxic conditions along the whole rising pipes are difficult and costly to ...
Global dispersal and potential sources of antibiotic resistance genes in atmospheric remote depositions
Antibiotic resistance has become a major Global Health concern and a better understanding on the global spread mechanisms of antibiotic resistant bacteria (ARB) and intercontinental ARB exchange is needed. We measured ...
Exploring the contribution of bacteriophages to antibiotic resistance
Bacteriophages (phages) are the most abundant and diverse biological entities in our planet. They infect susceptible bacterial hosts into which they either multiply or persist. In the latter case, phages can confer new ...
Low Fermentation pH Is a Trigger to Alcohol Production, but a Killer to Chain Elongation
Gasification of organic wastes coupled to syngas fermentation allows the recovery of carbon in the form of commodity chemicals, such as carboxylates and biofuels. Acetogenic bacteria ferment syngas to mainly two-carbon ...
Diversity of Miscellaneous Crenarchaeotic Group archaea in freshwater karstic lakes and their segregation between planktonic and sediment habitats
The Miscellaneous Crenarchaeotic Group (MCG) is an archaeal lineage whose members are widespread and abundant in marine sediments. MCG archaea have also been consistently found in stratified euxinic lakes. In this work, ...
Seasonal variation in transcript abundance in cork tissue analyzed by real time RT-PCR
The molecular processes underlying cork biosynthesis and differentiation are mostly unknown. Recently, a list of candidate genes for cork biosynthesis and regulationwas made available opening newpossibilities for molecular ...
Gene Flow and Maintenance of Genetic Diversity in Invasive Mosquitofish (Gambusia holbrooki)
Genetic analyses contribute to studies of biological invasions by mapping the origin and dispersal patterns of invasive species occupying new territories. Using microsatellite loci, we assessed the genetic diversity and ...
The core microbiome is responsible for volatile silicon and organic compounds degradation during anoxic lab scale biotrickling filter performance
Volatile silicon compounds present in the biogas of anaerobic digesters can cause severe problems in the energy recovery systems, inducing costly damages. Herein, the microbial community of a lab-scale biotrickling filter ...
Elucidating the role of K+ channels during in vitro capacitation of boar spermatozoa: Do SLO1 channels play a crucial role?
This study sought to identify and localize SLO1 channels in boar spermatozoa by immunoblotting and immunofluorescence, and to determine their physiological role during in vitro sperm capacitation. Sperm samples from 14 ...
In vitro maturation in the presence of Leukemia Inhibitory Factor modulates gene and miRNA expression in bovine oocytes and embryos
Members of the interleukin-6 (IL-6) family of cytokines are important for reproductive function that are mediated through changes in gene and miRNA expression. Herein, we characterized the expression of miR-21, miR-155, ...
Sperm physiology and in vitro fertilising ability rely on basal metabolic activity: insights from the pig model
Whether basal metabolic activity in sperm has any influence on their fertilising capacity has not been explored. Using the pig as a model, the present study investigated the relationship of energetic metabolism with sperm ...
Rewarding brain stimulation reverses the disruptive effect of amygdala damage on emotional learning
Intracranial self-stimulation (SS) in the lateral hypothalamus, a rewarding deep-brain stimulation, is able to improve acquisition and retention of implicit and explicit memory tasks in rats. SS treatment is also able to ...
Red LED light acts on the mitochondrial electron chain of donkey sperm and its effects depend on the time of exposure to light
This work aimed to investigate how stimulation of donkey sperm with red LED light affects mitochondrial function. For this purpose, freshly diluted donkey semen was stimulated with red light for 1 min, 5 min and 10 min, ...
Aldose reductase 1 B 1 (AKR1B1) in seminal plasma is mainly secreted by seminal vesicles, but is not related to sperm quality or resilience to preservation
Aldose Reductase B1 (AKR1B1), a NADPH-dependent enzyme that belongs to the aldo-keto reductase protein superfamily, has been reported to be involved in both male and female reproductive physiology. The objectives of this ...
Silencing of the potato StNAC103 gene enhances the accumulation of suberin polyester and associated wax in tuber skin
Suberin and wax deposited in the cork (phellem) layer of the periderm form the lipophilic barrier that protects mature plant organs. Periderm lipids have been widely studied for their protective function with regards to ...
Comparative analysis of prostate-specific antigen by two-dimensional gel electrophoresis and capillary electrophoresis
Serum levels of Prostate-Specific Antigen (PSA) are not fully specific for prostate cancer (PCa) diagnosis and several efforts are focused on searching to improve PCa markers through the study of PSA subforms that could ...
Cryotolerance of stallion spermatozoa relies on GLPs rather than orthodox AQPs
Aquaporins (AQPs), a family of ubiquitous water channels divided into orthodox AQPs, aquaglyceroporins (GLPs), and superAQPs, are present in stallion spermatozoa. The aim of this study was to elucidate the functional ...
