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. 2015 May 29;10(5):e0128989. doi: 10.1371/journal.pone.0128989

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© 2015 Rotsch et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 6 — 150 μCi of free ¹⁸F was applied to wild-type leaves and allowed to transport for two hours before a one hour image was obtained. Levels close to background were observed in the leaves with very low levels of transport.