PLOS BiologyApr 2, 2025
The #diatom genus Nitzschia lost photosynthesis to become free-living heterotrophs. This study shows how #HGT from marine bacteria, followed by #GeneDuplication & #neofunctionalization, allowed them to catabolize #alginate & live off brown algal polysaccharides @PLOSBiology https://plos.io/41WaW8e
Diatom heterotrophy on brown algal polysaccharides emerged through horizontal gene transfer, gene duplication, and neofunctionalization

Diatoms are ancestrally photosynthetic microalgae, but the genus Nitzschia has lost photosynthesis to become free-living secondary heterotrophs. This study shows how a single horizontal gene transfer from marine bacteria, followed by substantial gene duplication and neofunctionalization, led to alginate catabolism and access to a new ecological niche involving brown algal polysaccharides.

John Vaccaro (johniac)Feb 7, 2025

SciTech Chronicles. . . . . . . . .Feb 7th, 2025

https://bit.ly/stc020725

#Mosa #fat #plant-based #cultivated #Alabama #shrews #Nipah #Hendra #Vortex #deformed #core #elongated #ECM #acellular #nanocomposite #alginate #agroforestry #farming #trees #shrubs

SciTech Chronicles. . . . . . . . .Feb 7th, 2025

  Good protocols minimize required information Vol II No 33 310 links Curated Your next burgers could be a blend of lab-grown fat and plant-...

CellBioNewsJan 3, 2024

New #alginate extraction method may help cultivated kelp be as good as wild #kelp.

#laminaria #algria #biotechnology #mariculture

https://phys.org/news/2024-01-alginate-method-cultivated-kelp-good.html

New alginate extraction method may help cultivated kelp be as good as wild kelp

Norway's exports products derived from from tangle kelp (Laminoria hyperborea) and knotted kelp (Ascophyllum nodosu) to the tune of more than NOK 1 billion a year. The industry mainly extracts alginate from kelp, which is used in over 600 different products as diverse as paint, soft serve ice cream, sauces, bandages, nappies, acid reflux medicine, and material for encapsulating cells and medicine. However, the market is far from saturated.

Phys.org
JustineSC9Aug 15, 2019
Mes oreilles sont décollées, mais quand je les vois comme ça je les trouve mignonnes (et vachement pratiques pour le démoulage, c'est un indéniable +). Elles seront super avec des prothèses latex ^__^
#alginate #resine