Chapter 15: MOA Part 1: Lipid Synthesis Inhibitors & Seedling Shoot Growth Inhibitors
15.8 Seedling Shoot Growth Inhibitors
![seedling shoot growth inhibitors excerpt from take action herbicide classification chart](https://ohiostate.pressbooks.pub/app/uploads/sites/162/2018/08/take-action-poster-seedling-shoot-growth-inhibitors-1024x700.png)
Now we turn our attention to the second herbicide Mode of Action, Seedling Shoot Growth Inhibitors and two Sites of Action: Lipid Synthesis Inhibitors (not ACCase Inhibitors) and Long-Chain Fatty Acid Inhibitors. In this mode we are looking at herbicides that interfere with a plant’s ability to elongate fatty acid chains, which would otherwise build waxes and components of the cuticle. The following diagram is a reminder of where these fall in the biochemical pathways.
![fatty acid synthesis and fatty acid elongation pathway diagram](https://ohiostate.pressbooks.pub/app/uploads/sites/162/2018/08/pathway-diagram-e1536174265282.jpg)
- Seedling Shoot Growth Inhibitors
- Group 8. Lipid Synthesis Inhibitors, not ACCase (LSI) (HRAC Group N)
- Group 15. Long-Chain Fatty Acid Inhibitors (May also see this referred to as Mitosis Inhibitors (CDI). (HRAC Group K3)
- Group 16. Specific Site Unknown (HRAC Group N)
Review and Reflection