Written by Michaela Rosenthal
Monday, 04 June 2018
Plants lack an immune system like that of animals. However, plants have developed their own unique defenses to detect bacteria, fungi, insects, and vertebrate organism invasion and stop them before mortal damage ensues. Tissue structure and chemistry as well as existing ecological relationships between animals and plants contribute to a plant’s defense and disease resistance. Aside from providing plant strength and rigidity, cell walls, waxy or rubbery films covering leaf and stem tissue, and bark all perform as physical barriers to invasion.