Ultrastructural changes and defense strategy of yellow lupine during silver nanoparticle and Fusarium oxysporum interaction

Description

Anielkis Batista and co-authors watch how yellow lupine roots defend themselves when silver nanoparticles and a fungal foe arrive. The fungus rots lupine plants, and silver particles are candidate protectors, so the team studied root cap cells of two lupine types under a high-power microscope during germination and early growth. They tracked reactive oxygen, a stress signal, with a glowing marker.

Silver treatment thickened cell walls and widened the dense space outside them. Cells grew busier shipping systems, with more of the small factories that package and send materials. The fungus alone stirred self-eating activity and waste bodies, while both treatments raised the oxygen stress signal over untreated roots. The authors read these shifts as a defense posture: stronger walls, faster internal traffic, and chemical alarms. They frame the particles as a priming tool for seedlings facing the fungus.

Catalog record

Source: https://europepmc.org/articles/PMC13402315