Monocercomonoides

E728811

Monocercomonoides is a genus of single-celled, flagellated protists notable for lacking mitochondria and instead using bacterial-derived enzymes for essential cellular processes.

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Statements (47)

Predicate Object
instanceOf genus
protist genus
biosyntheticPathway cytosolic synthesis of iron–sulfur proteins
cellType single-celled
cellularCompartment cytosol
cellularProcess cytosolic iron–sulfur cluster biogenesis
cellularStructure multiple flagella
ventral groove typical of oxymonads
discoveredBy protistologists studying oxymonads
domain Eukarya
surface form: Eukaryota
energyMetabolism lacks classical mitochondrial oxidative phosphorylation
relies on cytosolic pathways for essential redox reactions
evolutionaryProcess acquired SUF system via horizontal gene transfer from bacteria
secondary loss of mitochondria
evolutionarySignificance demonstrates that mitochondria are not absolutely essential for eukaryotic life
foundIn gut of small mammals
gut of some vertebrates
geneticFeature mitochondrial protein genes are absent from nuclear genome
genomeType nuclear genome composed of linear chromosomes
habitat animal gut
intestinal tract of vertebrates
hasCellularStructure flagellum
hasOrganelle Golgi apparatus NERFINISHED
endoplasmic reticulum
nucleus
ribosome
hasSpecies Monocercomonoides sp. PA203 NERFINISHED
kingdom Protista NERFINISHED
lacksOrganelle mitochondrion
mitochondrion-related organelle
lifestyle intestinal symbiont
metabolicFeature uses bacterial-derived SUF system for iron–sulfur cluster assembly
uses cytosolic sulfur mobilization system instead of mitochondrial ISC system
motility flagellated
notableFor first known eukaryotic genus completely lacking mitochondria
replacement of mitochondrial ISC system by bacterial SUF system
oxygenRequirement anaerobic
parentTaxon Oxymonadida NERFINISHED
Preaxostyla NERFINISHED
pathogenicity generally considered non-pathogenic
proteinImport lacks mitochondrial protein import machinery
reproduction asexual reproduction
researchUse model for alternative iron–sulfur cluster biogenesis pathways
model for studying mitochondrial loss in eukaryotes
studyPublishedIn 2016 Nature paper describing complete absence of mitochondria
symbioticAssociation commensal in animal intestines
taxonRank genus

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Excavata includesTaxon Monocercomonoides