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Published on: May 11, 2019
Tissue to tissue symplastic communication in the shoots of etiolated corn seedlings
1Botany Dept, Tel Aviv Univ., Ramat Aviv, Israel 69978 Dept of Botany and Plant Pathology, Michigan State Univ., East Lansing, MI 48824, USA.
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.
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