Abstract:

Abstract: Subcellular localization of jasmonic acid (JA) was performed by means of immunogold electron microscopy technique in pea (Pisum sativum L.) leaves. The result showed that a large number of JA visualized by immunogold particles distributed in the chloroplast , cell wall and cytoplasm of mesophyll cells, a few in the nuclei. In phloem, most of immunogold particles were observed in the sieve element-companion cell (SE-CC) complex, whereas little immunogold particle was found in the xylem. The present results offered a cytological basis for further study on biological function of JA in plant.