Unformatted text preview: from the time a spore lands on the surface of a leaf until the appressorium is formed. 8. What is the function of the appressorium? What is the penetration peg? Describe the mechanisms used by the fungus to penetrate through the cuticle and primary cell wall of the epidermis. 9. Once penetration occurs, are fungal and oomycete hyphae primarily intracellular or intercellular. 10. What routes are used by bacteria to infect plants? How do bacterial pathogens colonize plant tissues?...
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- Spring '08
- Bacteria, Primary Cell Wall, PLANT TISSUES