Major contribution of anaplerosis to inorganic carbon fixation in the dark ocean

C. Amano, U. Willhelm, T. Koch, T. Reinthaler, R. L. Hansman, E. Sintes, G. J. Herndl, J. M. González, F. Baltar · 2026

Read Major contribution of anaplerosis to inorganic carbon fixation in the dark ocean by C. Amano, U. Willhelm, T. Koch, T. Reinthaler, R. L. Hansman, E. Sintes, G. J. Herndl, J. M. González, F. Baltar (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13447088.txt.

Description

C. Amano and colleagues show that much carbon fixing in the dark ocean runs through a side door called anaplerosis, in a 2026 study. The process tops up the building blocks of core metabolism, and it is open to ordinary feeding bacteria, not just the self-feeding kinds. World ocean gene and protein datasets showed the key enzymes voiced widely.

One genus, Alteromonas, stood out: it lacks self-feeding paths yet ran the side-door enzyme at high pitch. Lab cultures confirmed it took dissolved carbon into its body, at rates set by warmth and food supply. Single-cell tracing in deep water put its share near a sixth of all dark carbon fixing. The authors recast the dark ocean's carbon budget with feeders inside it.

Catalog record

CREATORC. Amano, U. Willhelm, T. Koch, T. Reinthaler, R. L. Hansman, E. Sintes, G. J. Herndl, J. M. González, F. Baltar
YEAR2026
COLLECTIONPAPERS
FORMATTXT
FILE SIZE49713
LICENSEhttps://creativecommons.org/licenses/by/4.0
RIGHTSCC BY
SOURCEEurope PMC

Source: https://europepmc.org/article/MED/PMC13447088

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