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EnglishMetabolic changes can occur in plants in response to abiotic stress. Extensive use of leaf discs (mechanical wounding) in studies regarding the effect on the biochemical response of the grapevine to different types of biotic stress makes it necessary to understand metabolic perturbation after injury. In this study, we investigate how mechanical wounding can affect the metabolism of grapevine leaf tissue using Bianca variety as case study. Two sizes of leaf discs (1.1 and 2.8 cm in diameter) were excised from leaves, and phenol, lipid and carotenoid perturbation were investigated 0, 6, 12, 24, 48, 96 and 120 h post cutting. In our study, we found an accumulation of molecules belonging to stilbenoid and stilbene classes such as trans-resveratrol, trans-piceide, Z-miyabenol C, E-cis-miyabenol C and ampelopsin D + quadrangularin A after abiotic stress. The increase in fatty acids such as linoleic acid, linolenic acid and oleic + cis-vaccenic acid during the first 12 h after injury, followed by a return to basal level, allowed us to surmise their role in response to abiotic stress, in particular to mechanical wounding in grapevine leaves. Different-sized discs caused a different response to the tissue, with a higher accumulation in 1.1-cm-diameter discs, especially of phenol compounds. The results of this work can be used to better understand metabolic changes due to biotic stress, having previous knowledge about the perturbation caused by abiotic stress.
Chitarrini, G.; Zulini, L.; Masuero, D.; Vrhovsek, U. (2017). Lipid, phenol and carotenoid changes in 'Bianca' grapevine leaves after mechanical wounding: a case study. PROTOPLASMA, 254 (6): 2095-2106. doi: 10.1007/s00709-017-1100-5 handle: http://hdl.handle.net/10449/42930
| Citation: | Chitarrini, G.; Zulini, L.; Masuero, D.; Vrhovsek, U. (2017). Lipid, phenol and carotenoid changes in 'Bianca' grapevine leaves after mechanical wounding: a case study. PROTOPLASMA, 254 (6): 2095-2106. doi: 10.1007/s00709-017-1100-5 handle: http://hdl.handle.net/10449/42930 | |
| Internal authors: | CHITARRINI, GIULIA (First) VRHOVSEK, URSKA (Last) (Corresponding) | |
| Organization unit: | CRI [2011-01 - today]: DEPARTMENT OF FOOD QUALITY AND NUTRITION CRI [2011-01 - today]: DEPARTMENT OF GENOMICS AND BIOLOGY OF FRUIT CROPS | |
| Authors: | Chitarrini, G.; Zulini, L.; Masuero, D.; Vrhovsek, U. | |
| Title: | Lipid, phenol and carotenoid changes in 'Bianca' grapevine leaves after mechanical wounding: a case study | |
| Journal: | PROTOPLASMA | |
| Issue Date: | 2017 | |
| Scientific Disciplinary Area: | Settore AGR/13 - CHIMICA AGRARIA | |
| Keywords ENG: | Mechanical wounding Grapevine Abiotic stress Metabolism | |
| Language: | English | |
| IF: | With Impact Factor ISI | |
| Publication status: | Published | |
| Nature of content: | Articolo in rivista/Article | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s00709-017-1100-5 | |
| Appears in Collections: | 01 - Journal article |
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