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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:nodulation factor
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Accession:CHEBI:25573 term browser browse the term
Definition:A role played by signal molecules produced by the symbiotic bacteria that trigger nodule formation (typically on the host plant roots).
Synonyms:related_synonym: NF;   nod factor;   nodulation factors

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  CHEBI ontology 20056
    role 20008
      biological role 20007
        nodulation factor 0
          N-acyl chitooligosaccharide 0
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