Plant Ontology

Last uploaded: August 17, 2021
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ID

http://purl.obolibrary.org/obo/PO_0005848

Preferred Name

secondary xylem

Synonyms

xilema secundario (Spanish, exact)

portion of secondary xylem tissue (exact)

二次木部 (Japanese, exact)

wood (exact)

Definitions

Secondary xylem develops as part of secondary growth (GO:0080117). Secondary xylem is the wood of gymnosperm and dicot angiosperm trees, shrubs, and lianas. May be organized into axial (PO:0025410) and ray (PO:0025411) systems. Secondary xylem is often part of a shoot axis (PO:0025029) or a root (PO:0009005) but may occur in other organs. Some monocots have a primary thickening meristem (PO:0005039), located near the shoot apical meristem (PO:0020148), that gives the appearance of secondary growth and may produce lignified tissue that appears woody but is not composed of secondary xylem. Tracheary elements in secondary xylem (PO:0000290) have lignified cell walls with secondary thickening and are dead at maturity. A portion of xylem (PO:0005352) tissue that develops from a vascular cambium (PO:0005598).

Type

http://www.w3.org/2002/07/owl#Class

comment

Secondary xylem develops as part of secondary growth (GO:0080117). Secondary xylem is the wood of gymnosperm and dicot angiosperm trees, shrubs, and lianas. May be organized into axial (PO:0025410) and ray (PO:0025411) systems. Secondary xylem is often part of a shoot axis (PO:0025029) or a root (PO:0009005) but may occur in other organs. Some monocots have a primary thickening meristem (PO:0005039), located near the shoot apical meristem (PO:0020148), that gives the appearance of secondary growth and may produce lignified tissue that appears woody but is not composed of secondary xylem. Tracheary elements in secondary xylem (PO:0000290) have lignified cell walls with secondary thickening and are dead at maturity.

inSubset

http://purl.obolibrary.org/obo/po#TraitNet

hasDbXref

PO_GIT:164

PO_GIT:434

IAO_0000115

A portion of xylem (PO:0005352) tissue that develops from a vascular cambium (PO:0005598).

notation

PO:0005848

hasExactSynonym

xilema secundario (Spanish, exact)

portion of secondary xylem tissue (exact)

二次木部 (Japanese, exact)

wood (exact)

hasOBONamespace

plant_anatomy

prefLabel

secondary xylem

id

PO:0005848

label

secondary xylem

subClassOf

http://purl.obolibrary.org/obo/PO_0025409

http://purl.obolibrary.org/obo/PO_0005352

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