Planteome: Term Details for "sieve tube element" (PO:0000289)

Accession: PO:0000289
Name: sieve tube element
Ontology: plant_anatomy
Synonyms: miembro del tubo criboso (Spanish, exact), sieve tube member (exact), sieve tube segment (exact), sieve-tube element (exact), 師(篩）管要素 (Japanese, exact)
Alternate IDs: PO:0000286
Definition: A sieve element (PO:0025406) that is part of a sieve tube (PO:0025416) and has as parts sieve areas aggregated into sieve plates (GO:0097218). Source: ISBN:0471245208
Comment: Sieve tube elements have sieve areas that are specialized into those with wide pores in sieve plates and those with narrow pores in lateral sieve areas. Sieve tube elements may have inclined end walls with compound or simple sieve plates. Typical of angiosperms. Differ from sieve cells (PO:0025415), which have less pronounced specialization of sieve areas and no sieve plates.
Subset: CL; TraitNet; Angiosperm
Related: Link to all annotated objects annotated to sieve tube element.; Link to all direct and indirect annotations to sieve tube element.; Link to all direct and indirect annotations download (limited to first 10,000) for sieve tube element.
Feedback: Comments, changes to terms, or requests for new ontology terms can be made at PO issue tracker on GitHub.

subject	relation	object
sieve tube element	is_a	sieve element (PO:0025406)
sieve tube element	BFO:0000050	sieve tube (PO:0025416)

subject	relation	object
primary phloem sieve tube element (PO:0025455)	is_a	sieve tube element
secondary phloem sieve tube element (PO:0025457)	is_a	sieve tube element
companion cell (PO:0000071)	RO:0002220	sieve tube element