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Farmer in Field

LCO Promoter Technology™ - Helping Plants Start Strong and Finish Stronger

In farming, a strong start to the season often sets the stage for how well crops will finish. That’s where LCO Promoter Technology™ comes in, giving plants the boost they need right from day one. 

What is LCO? 

LCO stands for lipo-chitooligosaccharide, which is a naturally occurring signaling molecule produced by beneficial microbes like rhizobia and mycorrhizal fungi. These signals are crucial for forming symbiotic relationships that enable plants to access essential nutrients. 

How LCO Works with Rhizobia 

In a typical legume crop, the plant sends out signals called flavonoids to attract rhizobia, the bacteria that help fix nitrogen. Once they get the message, rhizobia sends back an LCO signal that tells the plant that they are a match and signals to the plant to start preparing for the rhizobia to enter.  

By applying LCO Promoter Technology™ right at seeding, the conversation gets an early start. Nodulation occurs sooner, nitrogen starts moving faster, and the crop is off to a stronger start, regardless of the soil type, temperature, or variety. 

 

Mycorrhizal Fungi Diagram

 

How LCO Supports Mycorrhizal Fungi 

LCO also plays a critical role in helping plants connect with arbuscular mycorrhizal (AM) fungi. These fungi release LCO signals known as Myc factors, which trigger the plant to prepare the roots for colonization. 

Once colonized, the fungi act like an extended root system, reaching into tiny soil pores to draw in water and essential nutrients that roots can't get on their own, which is especially important in low-phosphorus prairie soils. 

Both rhizobia and AM fungi activate the plant’s SYM (Symbiosis) signaling pathway, a built-in response that prepares roots for beneficial microbial entry. LCO Promoter Technology™ taps into this shared communication channel, allowing earlier and more efficient symbiosis. 

Mycorrhizal Fungi Diagram

Benefits for the Plant 

  • Fix nitrogen sooner 

  • Access water and essential nutrients faster 

  • Build stronger roots 

  • Tolerate stress from heat, drought, and poor fertility 

The Bottom Line 

LCO Promoter Technology™ helps plants do what they're already designed to do, just faster and more effectively. And that stronger start can lead to a stronger finish.