OBSOLETE pollen tube tip true punta del tubo pol&#237nico (Spanish, exact) PO_GIT:228 花粉管先端部 (Japanese, exact) plant_anatomy PO:0000028 PO:0025195 OBSOLETE. Tip portion of the pollen tube that is rapidly growing. This term was made obsolete because it is a subcellular component. See GO for the term pollen tube tip (GO:0090404). Since a pollen tube tip is part_of a pollen tube, which is part of a pollen cell, annotations for pollen tube tip may also go to the more general term pollen tube cell (PO:0025195).