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. 2008 May 31;59(10):2659–2672. doi: 10.1093/jxb/ern134

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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. 1. — Altered ultrastructure of cells in shoot meristems of cytokinin-deficient tobacco plants. Transmission electron micrographs of cells from the peripheral zone of wild-type (A, B) and 35S:CKX1 transgenic shoot meristems (C–E) are presented at a similar magnification. N, Nucleus; m, mitochondria; p, proplastid; V, vacuole. Arrows in C, D, and E indicate the unusually large tubuli arising from the inner membrane of mitochondria, sectioned transversally (C, D) and longitudinally (E). Scale bars = 2 μm (A, C) and 1 μm (B, D, E).