Chromium (VI) Uptake and Tolerance Potential in Cotton Cultivars: Effect on Their Root Physiology, Ultramorphology, and Oxidative Metabolism. - Daud, M. K.; Lei Mei; Variath, M. T.; Ali, Shafaqat; Cheng Li; Rafiq, M. T.; Zhu, S. J. (BioMed Research International, 2014)