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Deposition, strain, and microcracking of the cuticle in developing 'Riesling' grape berries

Research output: Contribution to journalArticleResearchpeer review

Authors

  • T. Becker
  • M. Knoche

External Research Organisations

  • Rural Region Service Centre (DLR) Rheinpfalz

Details

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalVitis - Journal of Grapevine Research
Volume51
Issue number1
Publication statusPublished - 2012

Abstract

The objectives of this study were to quantify deposition, strain, and microcracking of the cuticular membrane (CM) in developing 'Riesling' (Vitis vinifera L.) berries. Mass of the CM, the cutin matrix (DCM), and wax increased pre-veraison (26 to 65 days after anthesis, DAA) on a berry (+ 236, + 211, and + 332 %, respectively) and a surface area basis (+ 11, + 3, and + 43 %, respectively). Post-veraison (65 to 138 DAA), CM and DCM mass per berry remained about constant at 3.4 (± 0.16) and 2.4 (± 0.11) mg per berry, respectively, while wax mass continued to increase from 0.8 (± 0.02) to 1.1 (± 0.02) mg per berry. On an area basis, however, CM and cutin mass decreased from 5.0 (± 0.13) to 4.6 (± 0.04) g·m -2 and from 3.5 (± 0.10) to 3.2 (± 0.03) g·m -2 between 65 and 138 DAA, respectively, but wax mass remained constant at about 1.5 (± 0.04) g·m -2. The calculated rate of cutin and wax deposition peaked at about 40 DAA, and declined continuously thereafter. There was no strain and no microcracking of the CM up to veraison. Post-veraison strain of the CM and microcracking in the stylar scar region increased linearly with time. The data suggest that the cessation of cutin deposition in post-veraison berries and the ongoing berry expansion resulted in increased strain of the CM which in turn caused microcracking in the CM.

Keywords

    Cutin, Fracture, Skin, Splitting, Vitis vinifera L., Wax

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Genetics
  • Agricultural and Biological Sciences(all)
  • Horticulture

Cite this

Deposition, strain, and microcracking of the cuticle in developing 'Riesling' grape berries. / Becker, T.; Knoche, M.
In: Vitis - Journal of Grapevine Research, Vol. 51, No. 1, 2012, p. 1-6.

Research output: Contribution to journalArticleResearchpeer review

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TY - JOUR

T1 - Deposition, strain, and microcracking of the cuticle in developing 'Riesling' grape berries

AU - Becker, T.

AU - Knoche, M.

PY - 2012

Y1 - 2012

N2 - The objectives of this study were to quantify deposition, strain, and microcracking of the cuticular membrane (CM) in developing 'Riesling' (Vitis vinifera L.) berries. Mass of the CM, the cutin matrix (DCM), and wax increased pre-veraison (26 to 65 days after anthesis, DAA) on a berry (+ 236, + 211, and + 332 %, respectively) and a surface area basis (+ 11, + 3, and + 43 %, respectively). Post-veraison (65 to 138 DAA), CM and DCM mass per berry remained about constant at 3.4 (± 0.16) and 2.4 (± 0.11) mg per berry, respectively, while wax mass continued to increase from 0.8 (± 0.02) to 1.1 (± 0.02) mg per berry. On an area basis, however, CM and cutin mass decreased from 5.0 (± 0.13) to 4.6 (± 0.04) g·m -2 and from 3.5 (± 0.10) to 3.2 (± 0.03) g·m -2 between 65 and 138 DAA, respectively, but wax mass remained constant at about 1.5 (± 0.04) g·m -2. The calculated rate of cutin and wax deposition peaked at about 40 DAA, and declined continuously thereafter. There was no strain and no microcracking of the CM up to veraison. Post-veraison strain of the CM and microcracking in the stylar scar region increased linearly with time. The data suggest that the cessation of cutin deposition in post-veraison berries and the ongoing berry expansion resulted in increased strain of the CM which in turn caused microcracking in the CM.

AB - The objectives of this study were to quantify deposition, strain, and microcracking of the cuticular membrane (CM) in developing 'Riesling' (Vitis vinifera L.) berries. Mass of the CM, the cutin matrix (DCM), and wax increased pre-veraison (26 to 65 days after anthesis, DAA) on a berry (+ 236, + 211, and + 332 %, respectively) and a surface area basis (+ 11, + 3, and + 43 %, respectively). Post-veraison (65 to 138 DAA), CM and DCM mass per berry remained about constant at 3.4 (± 0.16) and 2.4 (± 0.11) mg per berry, respectively, while wax mass continued to increase from 0.8 (± 0.02) to 1.1 (± 0.02) mg per berry. On an area basis, however, CM and cutin mass decreased from 5.0 (± 0.13) to 4.6 (± 0.04) g·m -2 and from 3.5 (± 0.10) to 3.2 (± 0.03) g·m -2 between 65 and 138 DAA, respectively, but wax mass remained constant at about 1.5 (± 0.04) g·m -2. The calculated rate of cutin and wax deposition peaked at about 40 DAA, and declined continuously thereafter. There was no strain and no microcracking of the CM up to veraison. Post-veraison strain of the CM and microcracking in the stylar scar region increased linearly with time. The data suggest that the cessation of cutin deposition in post-veraison berries and the ongoing berry expansion resulted in increased strain of the CM which in turn caused microcracking in the CM.

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KW - Fracture

KW - Skin

KW - Splitting

KW - Vitis vinifera L.

KW - Wax

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SN - 0042-7500

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