Mucospheres produced by a mixotrophic protist impact ocean carbon cycling.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
14 03 2022
14 03 2022
Historique:
received:
04
02
2021
accepted:
04
02
2022
entrez:
15
3
2022
pubmed:
16
3
2022
medline:
6
4
2022
Statut:
epublish
Résumé
Mixotrophic protists (unicellular eukaryotes) that engage in both phototrophy (photosynthesis) and phago-heterotrophy (engulfment of particles)-are predicted to contribute substantially to energy fluxes and marine biogeochemical cycles. However, their impact remains largely unquantified. Here we describe the sophisticated foraging strategy of a widespread mixotrophic dinoflagellate, involving the production of carbon-rich 'mucospheres' that attract, capture, and immobilise microbial prey facilitating their consumption. We provide a detailed characterisation of this previously undescribed behaviour and reveal that it represents an overlooked, yet quantitatively significant mechanism for oceanic carbon fluxes. Following feeding, the mucospheres laden with surplus prey are discarded and sink, contributing an estimated 0.17-1.24 mg m
Identifiants
pubmed: 35288549
doi: 10.1038/s41467-022-28867-8
pii: 10.1038/s41467-022-28867-8
pmc: PMC8921327
doi:
Substances chimiques
Carbon
7440-44-0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1301Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2022. The Author(s).
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