Authors
Verónica Monserrat Rodríguez-Sánchez, Jessica Edith Solis-de la Cruz, Ma Concepción Guzmán-Ramos, Judith Márquez-Guzmán, Rocío Cruz-Ortega
Published in
Protoplasma. Jul 17, 2026. Epub Jul 17, 2026.
Abstract
Anatomical insights from plant studies offer a unique way to understand the tissue-level adaptations that enable some species to develop aluminum (Al) tolerance. To conduct functional anatomy studies, methods are required that uphold both structural integrity and cellular chemical stability. Previous research on the Al-tolerant species in Fagopyrum esculentum has focused primarily on physiological mechanisms, leaving technical and structural gaps regarding its sequestration in tissues. This research presents a histochemical approach to elucidate Al compartmentalization in mature F. esculentum plants. Samples were preserved with a modified Zamboni fixative to avoid metal leaching before being embedded in glycol methacrylate (GMA). High-quality 12 μm sections were obtained. For anatomical description, Toluidine Blue O was utilized, while Chromazurol S (CAS) was employed for histochemistry. In addition, laser microdissection of the leaves and Al quantification by ICP-MS were performed. The results revealed a progressive acropetal gradient. The marginal papillae of the leaves exhibited a concentration of 4352 ± 0.5 mg Al*kg⁻¹ DW (1.6 times higher than the lamina fraction). This pattern shows that Al sequestration in this region is a permanent trait inherited from the developmental start. This study offers a replicable foundation for exploring metal compartmentalization and detoxification processes in F. esculentum and related metal-tolerant herbaceous plants.
PMID:
42463549
Bibliographic data and abstract were imported from PubMed on 17 Jul 2026.
Read full publication at:
Please sign in
to see all details.
Advertisement
Stats
- Recommendations n/a n/a positive of 0 vote(s)
- Views 3
- Comments 0