portion of plant tissue portion of vascular tissue A portion of plant tissue (PO:0009007) that has as part one or more tracheary elements (PO:0000290) or sieve elements (PO:0025406). BTO:0001432 Functions in conduction and support. In shoot axes (PO:0025029), vascular tissue is often found as part of a shoot axis stele (PO:0025198) or as scattered vascular bundles (PO:0005020). May include other types of tissues or cells, such as parenchyma (PO:0005421) or fiber cells (PO:0025407). PO:0009015 PO_GIT:431 plant_anatomy porci&#243n de tejido vascular (Spanish, exact) vascular system (related) vascular tissue (exact) 維管束細胞の一部 (Japanese, exact)