Lukas VFN 🇪🇺Jul 18, 2024

#Diatoms surprise could rewrite the global carbon cycle
https://today.ucsd.edu/story/diatom-surprise-could-rewrite-the-global-carbon-cycle

#Mixotrophic growth of a ubiquitous marine diatom https://www.science.org/doi/10.1126/sciadv.ado2623

"new research suggests that #photosynthesis is not their only strategy for accumulating carbon. Instead, these single-celled #plankton are also building biomass by feeding directly on organic #carbon in wide swaths of the ocean."

Diatom Surprise Could Rewrite the Global Carbon Cycle

When it comes to diatoms that live in the ocean, new research suggests that photosynthesis is not the only strategy for accumulating carbon. Instead, these single-celled plankton are also building biomass by feeding directly on organic carbon in wide swaths of the ocean. These new findings from a team led by UC San Diego researchers could lead to reduced estimates regarding how much carbon dioxide diatoms pull out of the air via photosynthesis, which in turn, could alter our understanding of the global carbon cycle, which is especially relevant given the changing climate.

CelloMom On CarsJun 1, 2023

"#Mixotrophic microbes are organisms that can switch between photosynthesising like plants (absorbing #CarbonDioxide) and eating like animals (releasing carbon dioxide). They are globally abundant, commonly found in freshwater and marine environments, and estimated to make up the majority of marine #plankton.

Under warming conditions, mixotrophic microbes shift from being #CarbonSinks to carbon emitters.

#TippingPoint #ClimateChange
https://www.miragenews.com/climate-change-may-transform-ocean-plankton-1018004/

CellBioNewsApr 25, 2023

#Mixotrophic #microorganisms in the deep #sea regulate energy balance.

#oceans #bacteria #UBA868 #gammaproteobacteria #sulfur

https://phys.org/news/2023-04-mixotrophic-microorganisms-deep-sea-energy.html

Mixotrophic microorganisms in the deep sea regulate energy balance

A team of international researchers led by Federico Baltar of the University of Vienna and José M González of the University of La Laguna has identified a previously unknown group of bacteria, called UBA868, as key players in the energy cycle of the deep ocean. They are significantly involved in the biogeochemical cycle in the marine layer between 200 and 1000 meters. The results have now been published in the journal Nature Microbiology.

Phys.org
CellBioNewsApr 4, 2023

Greater #duckweed shows #metabolic flexibility during #trophic #transition.

#carboncapture #mixotrophic #proteomics #metabolomics

https://phys.org/news/2023-04-greater-duckweed-metabolic-flexibility-trophic.html

Greater duckweed shows metabolic flexibility during trophic transition

Duckweeds, a group of fast-growing aquatic plants, are good candidates for bioenergy production and CO2 capture because of their simple structure, fast growth rate and high starch content. At present, duckweed cultivation mainly focuses on a photoautotrophic mode, which is not optimal for a high growth rate and biomass accumulation, and is not the best trophic mode for duckweed industrial applications.

Phys.org