@Article{IPB-302, author = {Walker, T. W. N. and Schrodt, F. and Allard, P.-M. and Defossez, E. and Jassey, V. E. J. and Schuman, M. C. and Alexander, J. M. and Baines, O. and Baldy, V. and Bardgett, R. D. and Capdevila, P. and Coley, P. D. and Dam, N. M. and David, B. and Descombes, P. and Endara, M. and Fernandez, C. and Forrister, D. and Gargallo-Garriga, A. and Glauser, G. and Marr, S. and Neumann, S. and Pellissier, L. and Peters, K. and Rasmann, S. and Roessner, U. and Salguero‐Gómez, R. and Sardans, J. and Weckwerth, W. and Wolfender, J. and Peñuelas, J.}, title = {{Leaf metabolic traits reveal hidden dimensions of plant form and function}}, year = {2023}, pages = {eadi4029}, journal = {Sci. Adv.}, doi = {10.1126/sciadv.adi4029}, url = {https://www.science.org/doi/full/10.1126/sciadv.adi4029#abstract}, volume = {9}, abstract = {The metabolome is the biochemical basis of plant form and function, but we know little about its macroecological variation across the plant kingdom. Here, we used the plant functional trait concept to interpret leaf metabolome variation among 457 tropical and 339 temperate plant species. Distilling metabolite chemistry into five metabolic functional traits reveals that plants vary on two major axes of leaf metabolic specialization—a leaf chemical defense spectrum and an expression of leaf longevity. Axes are similar for tropical and temperate species, with many trait combinations being viable. However, metabolic traits vary orthogonally to life-history strategies described by widely used functional traits. The metabolome thus expands the functional trait concept by providing additional axes of metabolic specialization for examining plant form and function.} }