from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Botany The primary meristem that gives rise to epidermis. Also called dermatogen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The primary meristem from which the epidermis develops.
Sorry, no etymologies found.
Vertical bars in (L and M) indicate enlarged region shown in (P and Q). pd, protoderm; pc, procambium; col, columella initials; QC, quiescent center; v, vascular tissue; ep, epidermis; c, cortex; en, endodermis.
Note the non-steriotipic divisions of the protoderm in the cotyledons (arrowheads).
Projection of multiple confocal sections shows that the PIN1 polarity in provascular tissue and protoderm in heart-stage icr1 embryos is altered.
Arrowheads in (B, D, F, H, J, and L) indicate the orientation of GFP-PIN1 localization, basal in procambial cells, and apical in protoderm.
Arrowheads in (B) indicate abnormal divisions in suspensor and columella initials; arrowhead in (C and D) marks abnormal division in protoderm.
Arrowheads in (G-I) mark abnormal divisions in protoderm.
Moreover, abnormal division planes were observed in the protoderm at the position of future cotyledons (icr1 mutation also resulted in reduced developmental synchronization of embryos within single siliques.