Biochemical and Ultrastructural Changes in Sida cordifolia L. and Catharanthus roseus L. to Auto Pollution

Figure 2

Effect of air pollution on micromorphological structures on leaves of Catharanthus roseus L. in the summer (left side: control; right side: polluted site 2). ((a) upper foliar surface showing stomata on either side of midvein; (b) lower foliar surface showing stomata with thin walled marginal cells; (c) lower foliar surface showing epidermal cells with stomata; (d) upper foliar surface showing stomata on one side of midvein; (e) lower foliar surface showing occluded stomata with thick walled marginal cells; (f) lower foliar surface showing occluded stomata).