The cellular slime mold Fonticula alba forms a dynamic, multicellular collective while feeding on bacteria.
Curr Biol
; 32(9): 1961-1973.e4, 2022 05 09.
Article
in En
| MEDLINE
| ID: mdl-35349792
Multicellularity evolved in fungi and animals, or the opisthokonts, from their common amoeboflagellate ancestor but resulted in strikingly distinct cellular organizations. The origins of this multicellularity divergence are not known. The stark mechanistic differences that underlie the two groups and the lack of information about ancestral cellular organizations limits progress in this field. We discovered a new type of invasive multicellular behavior in Fonticula alba, a unique species in the opisthokont tree, which has a simple, bacteria-feeding sorocarpic amoeba lifestyle. This invasive multicellularity follows germination dependent on the bacterial culture state, after which amoebae coalesce to form dynamic collectives that invade virgin bacterial resources. This bacteria-dependent social behavior emerges from amoeba density and allows for rapid and directed invasion. The motile collectives have animal-like properties but also hyphal-like search and invasive behavior. These surprising findings enrich the diverse multicellularities present within the opisthokont lineage and offer a new perspective on fungal origins.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Dictyosteliida
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
Curr Biol
Journal subject:
BIOLOGIA
Year:
2022
Document type:
Article
Affiliation country:
Country of publication: