Flavonoids, strigolactones, and beyond: scaling plant-arbuscular mycorrhizal fungi communication towards community-level dynamics.
Urcelay C, Borda V, Marro N, López-Ráez JA
Summary
PubMedWhy it matters This matters because understanding why beneficial soil fungi help your vegetables and fruit trees but ignore — or even suppress — garden weeds could lead to farming and gardening practices that naturally favor crops over weeds without herbicides.
Plant roots release chemical messages into the soil, and beneficial fungi 'read' these messages to decide whether to partner with a plant. Researchers found that crop plants tend to send richer, more compelling chemical signals than weeds, which may be why fungi flock to crops but often ignore weeds. This natural chemical conversation happening underground could shape which plants win or lose in any garden, field, or ecosystem.
chevron_right Technical Details
Crops and weeds communicate with soil fungi through chemical signals, and crops appear to be much better at recruiting beneficial fungi than weeds. This chemical advantage may help explain why crops thrive with fungal partners while weeds often don't benefit — or are even harmed.
Key Findings
Crop plants produce more diverse and functionally distinctive flavonoid chemical profiles in their root secretions compared to weeds, giving them an advantage in recruiting beneficial soil fungi.
Flavonoid compounds with the strongest positive effects on fungal growth and root colonization are more common in crops, while flavonoids with neutral or weak effects dominate in weeds.
The framework proposes that these chemical signaling differences may feed back into plant community dynamics — potentially explaining at a molecular level why fungi benefit crops but have neutral or negative effects on weeds in agricultural settings.
Abstract Preview
Arbuscular mycorrhizal fungi (AMF) are key drivers of plant growth and nutrition, shaping the relationship between plant diversity and ecosystem productivity. In agroecosystems, AMF generally benef...
open_in_new Read full abstract on PubMedAbstract copyright held by the original publisher.
Was this useful?
Chloroplast Genome Editing Eliminates Gluten Immunogenicity in Triticum aestivum
This matters because it could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without ...