Figure 2 - Trichoderma spent media metabolites differ among species. PCA biplot from GC-MS analysis ofTrichoderma spp. 1 week- spent media. Centroids report the code number of the compounds and vectors indicate the loadings of the spent media with respect to fungal species. TG, T. gamsii ; TH, T. harzianum ; TV, T. velutinum ; TT, T. tomentosum . Numbers after species codes indicate the biological replica (see Dataset S1 for raw data and details of the statistical analysis).