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. 2008 Jun;59(9):2529–2543. doi: 10.1093/jxb/ern119

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© 2008 The Author(s).

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper is available online free of all access charges (see http://jxb.oxfordjournals.org/open_access.html for further details)

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Fig. 2. — The FM4-64 staining in pollen tubes of Torenia fournieri. (A, C) FM4-64 fluorescence images of pollen tubes cultured without and with IAA treatment for 2 h, respectively, showing the FM4-64 staining signal focused at the tube apex and extended to the subapical region with gradually lower intensity. (B, D) Pixel values along the longitudinal axes of the tubes in (A) and (C), respectively, showing the significant increase of fluorescence intensity in IAA-treated tubes. Bars = 15 μm (A), 12 μm (C).