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A MORPHOMETRIC ANALYSIS OF CELLULAR DIFFERENTIATION IN CAPS OF PRIMARY AND LATERAL ROOTS OF HELIANTHUS ANNUUS
Author(s) -
Moore Randy
Publication year - 1985
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1985.tb08349.x
Subject(s) - biology , ultrastructure , helianthus annuus , organelle , botany , cell type , cellular differentiation , microbiology and biotechnology , sunflower , cell , genetics , horticulture , gene
In order to determine if patterns of cell differentiation are similar in primary and lateral roots, I performed a morphometric analysis of the ultrastructure of calyptrogen, columella, and peripheral cells in primary and lateral roots of Helianthus annuus. Each cell type is characterized by a unique ultrastructure, and the ultrastructural changes characteristic of cellular differentiation in root caps are organelle specific. No major structural differences exist in the structures of the composite cell types, or in patterns of cell differentiation in caps of primary vs. lateral roots.