FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term exine ID (Ontology) GO:0043668 (Gene Ontology)
Definition The outer layer of the pollen grain wall which is composed primarily of sporopollenin.
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cellular_component
 |__cellular anatomical structure__
external encapsulating structure   |
 |__pollen wall____________________|
                                   exine
                                    |__ectexine
                                    |   |__foot layer
                                    |__endexine
                                    |__nexine
                                    |__sexine
                                        |__columella
                                        |__sculpture element
                                        |__tectum
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Is a cellular anatomical structure
Part of pollen wall
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