Project description:This study evaluated the biocontrol efficacy, growth-promoting potential, and molecular mechanisms of the actinomycete strain FJSM-07, identified via 16S rDNA sequencing as Streptomyces murinus.
Project description:The transmission of the most virulent human malaria parasite, Plasmodium falciparum, relies on the survival in the contrasting environments of the human host and mosquito vector. One of the most fascinating adaptations to this lifestyle is the specific silencing of individual rDNA genes in the human host that are de-repressed following host-to-vector transmission. In this study, we characterized the epigenetic signatures of active and silent rDNA loci and found that rDNA silencing relies on aerobic glycolysis, the sole energy-generating pathway in the human host. We show that disruption of NAD+ regeneration during lactate fermentation promotes rDNA de-repression and identify Sir2 as the mediator between fluctuating NAD+ levels and a functional transcriptional outcome. Hence, rDNA activation appears to be coupled to the metabolic state of the parasite as it transitions from aerobic glycolysis to mitochondrial respiration during host-to-vector transmission.
Project description:Six- to eight-week old CD1 male mice were sleep-deprived for 24 hours by placing them in a small platform in a water tank. Their ileum samples were harvested every 4 hours on the next day (time point: ZT1,ZT5,ZT9,ZT13,ZT17,ZT21). The ileum samples were subjected to 16s rDNA sequencing. Control group (C1,C5,C9,C13,C17,C21, n=36). SD group (SD1,SD5,SD9,SD13,SD17,SD21, n=36).
Project description:Prostate of SD rats was injected with 0.1 ml 1% carrageenan to induce chronic nonbacterial prostatitis, and the control rats injected with sterile saline. Then, the cecal contents were collected for 16S rDNA sequencing.
Project description:The transmission of the most virulent human malaria parasite, Plasmodium falciparum, relies on the survival in the contrasting environments of the human host and mosquito vector. One of the most fascinating adaptations to this lifestyle is the specific silencing of individual rDNA genes in the human host that are de-repressed following host-to-vector transmission. In this study, we characterized the epigenetic signatures of active and silent rDNA loci and found that rDNA silencing relies on aerobic glycolysis, the sole energy-generating pathway in the human host. We show that disruption of NAD+ regeneration during lactate fermentation promotes rDNA de-repression and identify Sir2 as the mediator between fluctuating NAD+ levels and a functional transcriptional outcome. Hence, rDNA activation appears to be coupled to the metabolic state of the parasite as it transitions from aerobic glycolysis to mitochondrial respiration during host-to-vector transmission.
Project description:Manutencao da producao de metano em industrias sucroalcooleiras a partir da substituicao de vinhaca por glicerol no periodo de entressafra de cana de acucar
Project description:In Drosophila, we tried to determine the microbiota associated with age-dependent sleep fragmentation. To this end, the aged male flies showing sleep fragmentation was sampled to compare with those without showing sleep fragmentation. Using an optimized data analysis workflow, we obtained about 0.1 million reads of 16s rDNA from single flies. Data indicated different microbiome between two groups.
