Direct x-ray microtomography observation confirms the induction of embolism upon xylem cutting under tension.

Université de Bordeaux, BIOGECO, Unité Mixte de Recherche 1202, F–33615 Pessac, France (J.M.T.-R., R.B., P.S.B., S.D.); Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1202 BIOGECO, F–33610 Cestas, France (J.M.T.-R., R.B., P.S.B., S.D.); Ulm University, Institute of Systematic Botany and Ecology, D–89081 Ulm, Germany (S.J., P.S.B., S.L., H.M.); University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, New South Wales 2753, Australia (B.C.); United States Department of Agriculture-Agricultural Research Service, Crops Pathology and Genetics Research Unit, University of California, Davis, California 95616 (A.J.M.); Institut National de la Recherche Agronomique, Unité Mixte de Recherche 547 PIAF, 63100 Clermont-Ferrand, France (H.C., E.B.); Clermont Université, Université Blaise-Pascal, Unité Mixte de Recherche 547 PIAF, 63000 Clermont-Ferrand, France (H.C., E.B.); School of Plant Science, University of Tasmania, Hobart, Tasmania 7001, Australia (T.J.B.); and School of Forestry and Environmental Studies, Yale University, New Haven, Connecticut 06511 (C.R.B.)