ontology: to/plant-chemical-role
remark: See README.txt

[Term]
id: PLANTCHEBIROLE:01 ! plant nutrient structure
name: plant nutrient structure
relationship: has_role CHEBI:52211 ! physiological role
relationship: variant_of CHEBI:33284 ! nutrient

[Term]
id: CHEBI:24866 ! salt
name: salt
is_a: PLANTCHEBIROLE:01 ! plant nutrient structure

[Term]
id: PLANTCHEBIROLE:02 ! plant micronutrient structure
name: plant micronutrient structure
comment: elements that are required in tiny quantities for growth
is_a: PLANTCHEBIROLE:01
relationship: variant_of CHEBI:27027 ! micronutrient
xref: EO:0007239 ! micronutrient regimen

[Term]
id: CHEBI:27560 ! boron atom
name: boron atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:28694 ! copper atom
name: copper atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:28685 ! molybdenum atom
name: molybdenum atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:23116 ! chlorine atom
name: chlorine atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:18291 ! manganese atom
name: manganese atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:18248 ! iron atom
name: iron atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: CHEBI:27363 ! zinc atom
name: zinc atom
is_a: PLANTCHEBIROLE:02 ! plant micronutrient structure

[Term]
id: PLANTCHEBIROLE:03
name: plant macronutrient structure
comment: The macronutrients comprise the elements required by the plant in relatively large quantities for normal growth.
is_a: PLANTCHEBIROLE:01
relationship: variant_of CHEBI:33937 ! macronutrient
xref: EO:0007240 ! macronutrient regimen

[Term]
id: PLANTCHEBIROLE:04 ! plant primary macronutrient structure
name: plant primary macronutrient structure
comment: These macronutrients comprise the elements N, P and K that are required by the plant in greatest quantities for normal growth.
is_a: PLANTCHEBIROLE:03
xref: EO:0007045 ! primary macronutrient

[Term]
id: CHEBI:25555 ! nitrogen atom
name: nitrogen atom
is_a: PLANTCHEBIROLE:04 ! plant primary macronutrient structure

[Term]
id: CHEBI:28659 ! phosphorus atom
name: phosphorus atom
is_a: PLANTCHEBIROLE:04 ! plant primary macronutrient structure

[Term]
id: CHEBI:26216 ! potassium atom
name: potassium atom
is_a: PLANTCHEBIROLE:04 ! plant primary macronutrient structure

[Term]
id: PLANTCHEBIROLE:05 ! plant secondary macronutrient structure
name: plant secondary macronutrient structure
comment: These macronutrients (Ca, Mg, S) are used less often as fertilizers than the primary elements.
is_a: PLANTCHEBIROLE:03
xref: EO:0007046 ! secondary macronutrient

[Term]
id: CHEBI:22984 ! calcium atom
name: calcium atom
is_a: PLANTCHEBIROLE:05 ! plant secondary macronutrient structure

[Term]
id: CHEBI:25107 ! magnesium atom
name: magnesium atom
is_a: PLANTCHEBIROLE:05 ! plant secondary macronutrient structure

[Term]
id: CHEBI:26833 ! sulfur atom
name: sulfur atom
is_a: PLANTCHEBIROLE:05 ! plant secondary macronutrient structure

[Typedef]
id: has_role ! has role
name: has role

[Typedef]
id: variant_of
name: variant of