White Light Enhances Adhesive Strength Between Epidermal and Inner Tissues of Pea Epicotyls via Accumulation of Cell Wall-Bound p-Coumaric Acid.

ABSTRACT: The epidermal and inner tissues of stem organs adhere via the cell wall, and the adhesion of both tissues is involved in the structural integrity of the stem. We have developed a method to quantitatively measure adhesive strength between these tissues. In this study we examined the effects of white light on adhesive strength between epidermal and inner tissues of pea epicotyls, as well as the chemical properties of cell walls in both tissues. The irradiation of white light to etiolated seedlings resulted in significantly higher adhesive strength between epidermal and inner tissues, as well as inhibition of elongation growth of the epicotyls. Further observation of epicotyl cross-sections revealed that white light substantially increased the intensity of autofluorescence emitted from the ce

SUBMITTER: Shimizu Y 

PROVIDER: S-EPMC12832603 | biostudies-literature | 2026 Jan-Feb

REPOSITORIES: biostudies-literature