| Popis: |
The wound response of tomato plants has been used extensively to characterize events involved in signal transduction pathways. Leaf injury leads to the up-regulation of defence-related genes, such as those encoding proteinase inhibitors at the wound site and elsewhere in distant, unwounded tissues of the plant. Signalling molecules encompassing glycans, lipids and peptides, as well as 'classic' plant hormones, all play a role in the regulation of the wound response. The nature of the systemic signal remains ill-defined, with chemical and physical candidates, and various long-range routes of intercellular transport involving the xylem and the phloem, as well as short-range diffusion through the apoplast. |
