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. 2015 Aug 12;10(8):e0133860. doi: 10.1371/journal.pone.0133860

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© 2015 Reinardy 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 1 — A single strip of tube feet and adjacent spines from one ambulacral section were cut at the base (A, 1 day post amputation, dpa). Regrowth of spines was measured directly with calipers, and tube feet length was measured by image analysis of underwater photographs (B, 8 dpa), with the scale set from a ruler placed adjacent to cut section (visible on right, panel A). Panels C–E indicate regrowth in a control animal after 8, 15, and 22 dpa, respectively. Panels F–H indicate regrowth in an animal treated with 3 μg/g DAPT after 8, 15, and 22 dpa, respectively.