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Maize Root Simplified Bacterial Community

Ecological State ENGINEERED
Environment rhizosphere
ENVO:00005801
Source File Maize_Root_Simplified_Community.yaml

A representative 7-member bacterial community from maize rhizosphere, developed through selective iterations to model root-associated microbiome function. The community consists of Enterobacter cloacae AA4, Stenotrophomonas maltophilia AA1, Ochrobactrum pituitosum AA2, Herbaspirillum frisingense, Pseudomonas putida, Curtobacterium pusillum, and Chryseobacterium indologenes. This simplified community reproducibly assembles on root surfaces and provides biocontrol against Fusarium verticillioides, a phytopathogenic fungus. E. cloacae AA4 plays a keystone role, as its removal causes dramatic community composition changes.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Enterobacter cloacae AA4 NCBITaxon:550
SYNTROPHIC_PARTNER
DOMINANT
Stenotrophomonas maltophilia AA1 NCBITaxon:40324
SYNTROPHIC_PARTNER
ABUNDANT
Ochrobactrum pituitosum AA2 NCBITaxon:221109
SYNTROPHIC_PARTNER
ABUNDANT
Herbaspirillum frisingense NCBITaxon:92645
SYNTROPHIC_PARTNER
COMMON
Pseudomonas putida NCBITaxon:303
SYNTROPHIC_PARTNER
COMMON
Curtobacterium pusillum NCBITaxon:69373
SYNTROPHIC_PARTNER
COMMON
Chryseobacterium indologenes NCBITaxon:253
SYNTROPHIC_PARTNER
COMMON
Zea mays NCBITaxon:4577
PRIMARY_PRODUCER
N/A

Ecological Interactions

Root Colonization and Community Assembly

MUTUALISM

Source Taxon: Enterobacter cloacae AA4

Biological Processes:

Evidence

  • PMID:28275097 - SUPPORT (IN_VITRO)
    "In this work, from the distinctive microbiota assembled by maize roots, through host-mediated selection, we obtained a greatly simplified synthetic bacterial community consisting of seven strains (Enterobacter cloacae, Stenotrophomonas maltophilia, Ochrobactrum pituitosum, Herbaspirillum frisingense, Pseudomonas putida, Curtobacterium pusillum, and Chryseobacterium indologenes) representing three of the four most dominant phyla found in maize roots"

Fusarium Suppression

MUTUALISM

Biological Processes:

Evidence

  • PMID:28275097 - SUPPORT (IN_VITRO)
    "In planta and in vitro, this model community inhibited the phytopathogenic fungus Fusarium verticillioides, indicating a clear benefit to the host"

Environmental Factors

Factor Value Unit
Target pathogen Fusarium verticillioides N/A
Keystone species Enterobacter cloacae AA4 N/A
Assembly dynamics reproducible colonization N/A
Agricultural application biocontrol for bioenergy crops N/A