symbiont entry into host entry into host through the stromata https://github.com/geneontology/go-ontology/issues/22206 GO:0140717 biological_process pg 2021-09-27T16:30:08Z Entry of a symbiont into host plant tissue via the stromata, microscopic pores in the epidermis of the aerial parts of terrestrial plants. These pores are essential for photosynthesis, as they allow CO2 to diffuse into the plant. The host is defined as the larger of the organisms involved in a symbiotic interaction.