ISHS Acta Horticulturae 381: International Symposium on Natural Phenols in Plant Resistance
THE APPEARANCE OF PHENOLICS IN TOMATO LEAF TISSUES EXPOSED TO SPIDER MITE ATTACK |
| Author: | M. Kielkiewicz |
| DOI: | 10.17660/ActaHortic.1994.381.99 |
| Abstract:
Three commercial tomato (L. esculentum) cultivars were tested in this study. It was found that tomato leaf trichomes (Type VI and Type V) contributed to the reduction of the density of mite at the begining of T.cinnabarinus feeding. Phenolics of glandular trichomes might be transformed to the compounds which act as mite feeding deterrents. As the result of mite feeding, the local accumulation of rutin and the reduction of chlorogenic acid concentration were observed. Parallelly, soluble protein concentration was decreased and the PPO activity was significantly increased within injured leaf tissues. These results support the hypothesis that catechol-based phenolics are involved in the defense against tetranychid mites. Defense reaction qualitatively varied among the cultivars. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
