What's the difference between procambium and protoderm?
Procambium
Definition:
(n.) The young tissue of a fibrovascular bundle before its component cells have begun to be differentiated.
Example Sentences:
(1) Light and electron microscopical studies showed that, during preculture, procambium cells of embryos became highly susceptible to Agrobacterium infection.
(2) Lateral and intermediate veins are initiated in this central layer, most often by divisions which contribute daughter cells to both the procambium and the ground meristem.
Protoderm
Definition:
Example Sentences:
(1) All of the transcripts were highly expressed in the protoderm of the shoot apical meristem.
(2) The former occur in the ordinary protodermal cells, the latter in some meristemoids.
(3) In situ hybridization showed expression of the EP2 gene in protoderm cells of somatic and zygotic embryos and transient expression in epidermis cells of leaf primordia and all flower organs.
(4) Marsupial development differs from early development of placental mammals in that the blastocyst is unilaminar, so that both embryonic and extraembryonic cells are derived from a single layer of cells (protoderm) which faces the blastocyst cavity.
(5) Antiserum elicited against a 16-residue synthetic lambda-actin peptide SAc4:257 reacted with a 46-kilodalton protein in soybean extracts, showed specificity for the lambda-peptide over the divergent kappa- and mu-actin peptides in enzyme-linked immunosorbent assays, and reacted strongly and preferentially with root protoderm in apical roots and in lateral root primordia.
(6) The protodermal cells producing the 'floating' guard cell mother cells (GMCs) in three Anemia species undergo an extraordinary polarization and an unexpected shaping.
(7) A late replicating X chromosome was identified in the protoderm cells of female unilaminar blastocysts and in the cells of embryonic and extra-embryonic regions of older blastocysts.
(8) No cellular unit of the eutherian blastula is recognizable unequivocally as the homologue of a specific part of the protodermal marsupial blastula; progressive deletion of innovative but phylogenetically older ontogenetic steps probably figured importantly in the evolution of eutherian early embryogenesis.
(9) In the symmetrical divisions of guard cell mother cells (GMC), as well as in those of protodermal cells, the PMB runs right round the internal plasmalemma surface in an equatorial position, coinciding with that of the future cell plate.
(10) The addition of the 32-kD endochitinase to ts11 embryo cultures at the nonpermissive temperature appeared to promote the formation of a correctly formed embryo protoderm.