Breaking the Growth–Defense Trade-Off: bHLH Transcription Factors as Integrators of Development, Metabolism, and Yield in Artemisia annua

Description

Mingyuan Yuan and Fei Zhou propose a shared control frame for boosting artemisinin output in the plant Artemisia annua, in 2026 work. The compound, a frontline malaria drug ingredient, is made and stored in tiny hair-like glands on the plant. Yield is capped by a tug-of-war among gland number, chemical flow through the pathway, and total plant growth. The review centers on a family of switch proteins called bHLH factors that tie those threads together.

One family member merges two hormone signals to switch on core production genes. Another links gland birth to pathway flow and teams with partners to amplify key enzymes. A third stretches the control to the whole plant, matching gland formation with photosynthesis and carbon use. The authors argue that editing several hubs at once, guided by multi-layer data, could break the growth-versus-defense trade-off that breeding alone has not.

Catalog record

Source: https://europepmc.org/article/MED/PMC13512541