primary xylem
Term Information
- Accession
- PO:0005849
- Aspect
- plant anatomy
- Synonyms
- exact: portion of primary xylem tissue
- exact: xilema primario (Spanish)
- exact: 一次木部 (Japanese)
- Definition
- A portion of xylem (PO:0005352) tissue that develops from the procambium (PO:0025275). [source: ISBN:0122151704, ISBN:0471245194]
- Comment
- Primary xylem develops as part of primary growth (request for primary growth has been made to GO) and is not differentiated into axial (PO:0025410) and ray (PO:0025411) systems. Tracheary elements (PO:0000290) have lignified cell walls with secondary thickening and are dead at maturity.
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