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. 2018 Jan 25;9:2. doi: 10.3389/fpls.2018.00002

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Copyright © 2018 Hu, Lung, Ye and Chye.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Immunogold localisation of AtACBP3 using anti-AtACBP3 antibodies in transmission electron microscopy of cross sections of apical stems from 5-week-old Arabidopsis. (A) Companion cell. (B) Sieve element. (C,D) Extracellular space. (E) Densities of gold particles were quantified per μm². Arrowheads indicate gold particles. Multiple floral stems from different individual plants sectioned and analysed in this experiment showed consistent results. Further images are available in Supplementary IEM Images. CC, companion cell; ES, extracellular space; SE, sieve element. Scale bar = 0.5 μm.