Root response in Pisum sativum and Zea mays under fluoranthene stress: Morphological and anatomical traits

► PAHs pollution negatively affects the growth potential and morphology of roots. ► PAHs initiate changes in anatomical structure and architecture of roots. ► The portion of cortex in root decreases, stele increases and xylem portion varies. ► Differentiation of vascular tissue occurs closer to root tip.