Publications by authors named "A Vezzi"
Article Synopsis
- Research in marine microbial communities is expanding, but inconsistencies in seawater sampling methods make comparisons difficult among studies.
- The EuroMarine Open Science Exploration initiative (EMOSE) was developed to standardize research by sampling seawater from a single location in the NW Mediterranean Sea, testing various processing approaches.
- Findings indicate that while the volume of seawater filtered doesn't significantly impact microbial diversity, differences exist based on size fractions and filter types; thus, merging data from studies with differing methodologies should be approached with caution.
MOSE is a system of mobile gates engineered to temporarily isolate the Venice Lagoon from the Adriatic Sea and to protect the city from flooding during extreme high tides. Within the framework of the Venezia2021 program, we conducted two experiments in July 2019 (over 48 h) and October 2020 (over 28 h) by means of 18 mesocosms, in order to simulate the structural alterations that microphytobenthos (MPB) assemblages might encounter when the MOSE system is operational. The reduced hydrodynamics inside the mesocosms favored the deposition of organic matter and the sinking of cells from the water column towards the sediment.
View Article and Find Full Text PDFSeaweeds are a group of essential photosynthetic organisms that harbor a rich diversity of associated microbial communities with substantial functions related to host health and defense. Environmental and anthropogenic stressors may disrupt the microbial communities and their metabolic activity, leading to host physiological alterations that negatively affect seaweeds' performance and survival. Here, the bacterial communities associated with one of the most common seaweed, Areshough, were sampled over a year at three sites of the lagoon of Venice affected by different environmental and anthropogenic stressors.
View Article and Find Full Text PDFParticulate organic matter (POM) export represents the underlying principle of the biological carbon pump, driving the carbon flux from the sunlit to the dark ocean. The efficiency of this process is tightly linked to the prokaryotic community, as >70% of POM respiration is carried out by particle-associated prokaryotes. In the Ross Sea, one of the most productive areas of the Southern Ocean, up to 50% of the surface primary production is exported to the mesopelagic ocean as POM.
View Article and Find Full Text PDFArticle Synopsis
- The study focuses on six strains of lactic acid bacteria (LAB) isolated from natural whey cultures, analyzing their potential as probiotics based on various factors like EPS production, pH and bile salt tolerance, and antibiotic resistance.
- Findings suggest that strains UC1267 and DSM 20075 are particularly promising for gut adaptation due to their survival in bile salts and strong bile salt deconjugation abilities.
- The pangenome analysis revealed unique genes related to folate biosynthesis and sugar metabolism, indicating that these strains might be suitable for broader applications beyond dairy.