- Plant Stress Ontology CC-BY-4.0
Plant Stress Ontology project; original artifact license CC-BY-4.0 (https://creativecommons.org/licenses/by/4.0/); https://obofoundry.org/ontology/pso.html
http://purl.obolibrary.org/obo/PSO_0000021 ; https://purl.obolibrary.org/obo/pso.owl ; snapshot SHA-256 d51252e9e15466960e5d678d3dace1f49c2ad1a8e3bbd49954cd9062c278ce07 ; exact artifact license https://creativecommons.org/licenses/by/4.0/ ; retrieved 2026-11-07