Leaf injury and gas exchange in Ipomoea nil cv. Scarlett O’Hara, an ozone bioindicator species, in Sao Paulo, Brazil - Moraes, Regina M; Meirelles, Sergio Tadeu; Silva, Simone F; Silva, Daiane T; Assis, Pedro I. L. S. de; Viola, Sandra R.A.S (Atmospheric Pollution Research, 2014)