Chapter 19: MOA Part 4 – Photosynthesis Inhibitors (Photosystems)

19.1 Objectives

Learning Objectives

After completing this chapter, you will be able to:

  • Explain the role of photosystems.
  • Explain the importance of the D1 protein.
  • Describe the mechanism by which herbicides interfere with Photosystem I and Photosystem II.
  • Explain how selectivity can be achieved in the design of the herbicides which interfere with photosystems.
  • Describe the symptoms seen in susceptible plants to the Photosystem Inhibitors.
  • Summarize weed resistance findings to both Photosystem Inhibitors.
  • Define vocabulary words: Photosystem I and II, D1, PQ, electron transfer chain, ferredoxin, chlorophyll, chloroplast, triplet chlorophyll, necrosis

 

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Principles of Weed Control Copyright © by Deana Namuth-Covert and Amy Kohmetscher. All Rights Reserved.