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

Figure 3

SEM photographs showing the effect of air pollution on leaf surface of Sida cordifolia L. (left: (a) = lower surface showing sunken stomata; (b) = lower foliar surface showing distribution of stomata with occluded stomatal pore) and Catharanthus roseus L. (right: (c) = upper foliar surface showing encrypted and sunken stomata; (d) = lower foliar surface showing stomata with striations arising from subsidiary cells) collected from Charbagh in the summer.