| Abstract: | A proton microprobe for energy-dispersive PIXE-analysis hasbeen used to measure elemental distributions of sulphur andother elements in roots of Tagetes patula L. by making a line-scanalong the diameter of the cross-section. Higher concentrationsof phosphorus and sulphur were found in or near the phloem.In addition the endodermis contained an increased sulphur concentration.The results obtained and future possibilities for this kindof investigation are discussed. Key words: Tagetes patula L., micro-PIXE, sulphur, thiophenes, endodermis, Pratylenchus penctrans (Cobb) |
