Ultrastructural damage in tomato plants exposed to chromium III P. A. Mangabeira, A. -A. F. de Almeida, V. L. Souza, A. J. dos Santos Júnior, D. C. Silva and R. M. de Jesus E3S Web of Conferences, 1 (2013) 11010 Published online: 23 April 2013 DOI: 10.1051/e3sconf/20130111010