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. 2009 Aug 14;7:51. doi: 10.1186/1741-7007-7-51

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Copyright © 2009 Roy et al; licensee BioMed Central Ltd.

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

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C/N ratio values of the three mycoheterotrophic orchids and other green orchids C/N ratio values of green plants, (white bars), mycoheterotrophic plants (grey bars) and fungi (black bars) from three sites: Doi Suthep #2 ((a), including A. montana and various ectomycorrhizal (ECM) fungi), Doi Suthep #3 ((b), including A. caudata, various saprobic fungi), Doi Pee Pan Nam ((c), including C. exigua, two ECM fungi and a saprobic Marasmius). Letters denote significant differences between species, according to pairwise Mann-Whitney tests (P < 0.01 at minimum); bars indicate the standard deviation.