Vol. 62 No. 2 (2023): including 12th Special issue on Grapevine Trunk Diseases
Short Notes - 12th Special issue on Grapevine Trunk Diseases

Grapevine histological responses to pruning: the influence of basal buds on tissue defence reactions

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  • Sara FALSINI,
  • Samuele MORETTI,
  • Enrico BATTISTON,
  • Corrado TANI,
  • Alessio PAPINI,
  • Giuseppe CARELLA,
  • Marco NOCENTINI,
  • Laura MUGNAI,
  • Silvia SCHIFF
Sara FALSINI
Department of Biology, Laboratories of Biomorphologies, University of Florence, Via Micheli 3, 50121 Firenze, Italy
Samuele MORETTI
2Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant pathology and Entomology section, University of Florence, P.le delle Cascine, 28, 50144 Firenze
Enrico BATTISTON
Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant pathology and Entomology section, University of Florence, P.le delle Cascine, 28, 50144 Firenze
Corrado TANI
Department of Biology, Laboratories of Biomorphologies, University of Florence, Via Micheli 3, 50121 Firenze
Alessio PAPINI
Department of Biology, Laboratories of Biomorphologies, University of Florence, Via Micheli 3, 50121 Firenze, Italy
Giuseppe CARELLA
Department of Biology, Laboratories of Biomorphologies, University of Florence, Via Micheli 3, 50121 Firenze, Italy
Marco NOCENTINI
Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant pathology and Entomology section, University of Florence, P.le delle Cascine, 28, 50144 Firenze, Italy
Laura MUGNAI
Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant pathology and Entomology section, University of Florence, P.le delle Cascine, 28, 50144 Firenze, Italy
Silvia SCHIFF
Department of Biology, Laboratories of Biomorphologies, University of Florence, Via Micheli 3, 50121 Firenze, Italy
DOI: https://doi.org/10.36253/phyto-14565
Categories

Published 2023-09-15

Keywords

  • Pruning,
  • wood anatomy,
  • tyloses,
  • early tissue defence reactions

How to Cite

[1]
S. FALSINI, “Grapevine histological responses to pruning: the influence of basal buds on tissue defence reactions”, Phytopathol. Mediterr., vol. 62, no. 2, pp. 321–332, Sep. 2023.

Copyright (c) 2023 Sara FALSINI, Samuele MORETTI, Enrico BATTISTON, Corrado TANI, Alessio PAPINI, Giuseppe CARELLA, Marco NOCENTINI, Laura MUGNAI, Silvia SCHIFF

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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Abstract

Grapevines require pruning procedures to maintain plant morphology and ensure productivity, and these procedures cause wounds that induce physical and biological host defence mechanisms. Grapevine tissue reactions to wounding resulting from four different pruning methods were assessed. Rapid (immediate) defence reactions were detected in 1-year-old canes with preserved basal buds. Formation of tyloses (≈ 90% of xylem vessels) was observed 1 month later on canes where the basal buds were maintained and no short stubs were left (i.e. the pruning cuts preserved the buds). At 2 months after pruning, lignin was slightly increased in cortical parenchyma after pruning of 3-year-old grapevine wood. Neither callose nor suberin production was observed in healing wounds, as is known in other fruit or broadleaf trees. In 3-year-old canes, fungal hyphae were observed in the non-active wood below the pruning cut surfaces. Preliminary observations of desiccation cones within canes confirmed that the basal buds preserved the canes from desiccation, after comparing different pruning procedures on canes of the same age. After 9 months, the desiccation cones were greater in 3- than 1-year-old wounds.

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