The Transport of 14C-Salicylic Acid in Heat-Stressed Young Vitis vinifera Plants1

The Transport of 14C-Salicylic Acid in Heat-Stressed Young Vitis vinifera Plants1 The transport of salicylic acid (SA) in heat-stressed Vitis vinifera plants was studied with 14C-salicylic acid. All leaves of young plants were cut off except the 4th, 5th, 6th, 7th, and 8th leaves. After the 6th leaves were fed with 14C-SA, the following treatments were conducted: (1) 4th, 6th, or 8th leaves were exposed to a high temperature of 38°C for 2, 6, and 12 h, respectively, while other parts of plants were kept at 27°C; (2) plants were kept at 27°C for 2, 6, and 12 h. The results showed that 14C-SA accumulated in the leaves stressed by heat. When the 6th leaves were at 38°C, less 14C-SA was exported from these leaves than from control leaves, but when the 4th or 8th leaves were kept at 38°C, more 14C-SA was exported. 14C-SA accumulation in the 4th or 8th leaves resulted from the 6th leaves directly and from the other parts of plants indirectly. These data suggested that SA was transported to a long distance and might be involved in the induction of heat tolerance. Russian Journal of Plant Physiology Springer Journals

The Transport of 14C-Salicylic Acid in Heat-Stressed Young Vitis vinifera Plants1

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Kluwer Academic Publishers-Plenum Publishers
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Life Sciences; Plant Sciences
Publisher site
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