Claim · model-written summary
Primary and secondary secretory canal systems were distinguished.
- Taxon
- DELARBREA PARADOXADelarbrea paradoxat0
- Outcome
- Secretory canal systems of primarye0
Verbatim
e0“Secretory canal systems of primary (axial canals in cortex and pith, radial canals in medullary rays) and secondary origin (axial canals in secondary phloem, radial canals in rays of secondary phloem and secondary xylem) were distinguished.”
t0“DELARBREA PARADOXA”
Title
BARK ANATOMY AND INTERCELLULAR CANALS IN THE STEM OF DELARBREA PARADOXA (ARALIACEAE)
M. R. Kolalite; A. A. Oskolski; H. G. Richter; et al. IAWA Journal - KU Leuven/IAWA Journal 2003. doi:10.1163/22941932-90000327
Other claims from this paper (8)
- Observation Two axial parenchyma types occurred in the secondary phloem.
- Observation Distribution, strand cell properties, starch and collapse behavior distinguished the two parenchyma types.
- Observation Three stages of secretory canal development were distinguished.
- Observation Canal lumina formed as meristematic cells differentiated into epithelial secretory cells.
- Observation Actively secreting epithelial cells had leucoplast groups accompanied by 2 to 3 mitochondria each.
- Mechanism Leucoplast-mitochondria aggregations indicated terpene production in the cell.
- Association Terpene secretion accompanied swelling and loosening of walls facing canal lumina.
- Observation Highly vacuolated senescent epithelial cells showed no secretory processes.