Exploring the relationships between the biodiversity of groups of interacting organisms yields insight into ecosystem stability and function (Hooper et al. 2000; Wardle 2006). We demonstrated positive relationships between host plant richness and ectomycorrhizal (EM) fungal diversity both in a field study in subtropical China (Gutianshan) and in a meta-analysis of temperate and tropical studies (Gao et al. 2013). However, based on re-evaluation of our data sets, Tedersoo et al. (2014) argue that the observed positive correlation between EM fungal richness and EM plant richness at Gutianshan and also in our metastudies was based mainly from (i) a sampling design with inconsistent species pool and (ii) poor data compilation for the meta-analysis. Accordingly, we checked our data sets and repeated the analysis performed by Tedersoo et al. (2014). In contrast to Tedersoo et al. (2014), our re-analysis still confirms a positive effect of plant richness on EM fungal diversity in Gutianshan, temperate and tropical ecosystems, respectively. 2015-03-09 14:30:46 UTC prep SP07c The relationship between ectomycorrhizal fungi and woody plant species richness and composition Cheng Gao gaochengaob@126.com François Buscot francois.buscot@ufz.de Tesfaye Wubet tesfaye.wubet@ufz.de Liang-Dong Guo guold@im.ac.cn Keping Ma, Prof. kpma@ibcas.ac.cn Gao, C., Shi, N. N., Liu, Y. X., Zheng, Y., Ding, Q., Mi, X. C., ... & Guo, L. D. (2014). Host plant richness explains diversity of ectomycorrhizal fungi: Response to the comment of Tedersoo et al.(2014). Molecular ecology, 23(5), 996-999. 2015-03-09 accepted