Publications by authors named "H M Dionisi"
Article Synopsis
- The study investigates the ability of marine microorganisms in coastal sediments to produce wax esters (WE) and triacylglycerols (TAG), which are important types of neutral lipids.
- Researchers collected and analyzed sediment samples from subantarctic and Antarctic environments, finding a high abundance and diversity of bacteria capable of synthesizing these lipids, specifically looking at the gene associated with the key enzyme WS/DGAT.
- The findings suggest that the observed lipid synthesis is linked to broader metabolic processes like fatty-acid metabolism and carbon recycling, highlighting the ecological significance of these bacteria in marine ecosystems.
Kelp forests, among the most productive ecosystems on Earth, cover large areas of the South Atlantic coast. Sediment heterotrophic bacteria have a pivotal role in the degradation of kelp biomass, however, the response of sediment microbial communities to periodic kelp biomass inputs is mostly unknown. Here, we show that kelp biomass induced rapid changes in overlying water chemistry and shifts in sediment microbial communities, which differed in the experimental systems containing Macrocystis pyrifera (M) and Undaria pinnatifida (U) with sediments of the respective regions.
View Article and Find Full Text PDFUndaria pinnatifida is a brown algae native to Asia that has settled in various regions worldwide, periodically contributing with large quantities of C and nutrients during its annual cycle. In this work, we analyzed a coastal site in Patagonia (Argentina) that has been colonized for three decades by U. pinnatifida, focusing on associated microbial communities in three different compartments.
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