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Tissue to tissue symplastic communication in the shoots of etiolated corn seedlings
Author(s) -
Epel Bernard L.,
Bandurski Robert S.
Publication year - 1990
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1990.tb00032.x
Subject(s) - stele , coleoptile , apex (geometry) , etiolation , zea mays , botany , biology , parenchyma , cortex (anatomy) , xylem , vascular bundle , vascular tissue , anatomy , agronomy , biochemistry , neuroscience , enzyme
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.