A portion of protoxylem (PO:0000272) tissue in which the maturation of primary xylem (PO:0005849) of the shoot system (PO:0009006) progresses both centripetally and centrifugally from the center.
Source:
POC:Laurel_Cooper,
ISBN:0471245208
Comment
Mesarch protoxylem is found in ferns and cycads stems.
Subset
None
Related
Link
to all annotated objects annotated to mesarch protoxylem.
Link
to all direct and indirect annotations
to mesarch protoxylem.
Link
to all direct and indirect annotations download (limited to first 10,000)
for mesarch protoxylem.
Feedback
Comments, changes to terms, or requests for new ontology terms can be made at PO issue tracker on GitHub.