title: Tissue to tissue symplastic communication in the shoots of etiolated corn seedlings.
abstract: Carboxyfluorescein, a symplastic probe, was applied to the cut mesocotyl base or coleoptile apex of etiolated Zea mays cv. Silver Queen seedlings and its transport measured and tissue distribution determined.  Long-distance longitudinal symplastic transport of the carboxyfluorescein was mainly in the vascular stele.  It moved laterally from the mesocotyl stele to the mesocotyl cortex but the presence of a weak barrier limited the movement.  A partial symplastic barrier was also present near the coleoptile-mesocotyl node.
authors.affiliation: Botany Dept, Tel Aviv Univ., Ramat Aviv, Israel.
authors.forename: B L
authors.initials: BL
authors.lastname: Epel
authors.forename: R S
authors.initials: RS
authors.lastname: Bandurski
mesh_terms: D001692:Biological Transport / Q000502:physiology; D002450:Cell Communication / Q000502:physiology*; D005452:Fluoresceins / Q000493:pharmacokinetics*; D018520:Plant Shoots / Q000378:metabolism*; D003313:Zea mays / Q000254:growth & development / Q000378:metabolism*
chemical_list: D005452:Fluoresceins; C027780:carboxyfluoresceindiacetate