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Title

Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera)

Authors

Attilio Rizzoli; Luca Jelmini; Gianni Boris Pezzatti; Mauro Jermini; Olivier Schumpp; Christophe Debonneville; Enrico Marcolin; Patrik Krebs; Marco Conedera; Rizzoli; Attilio; Jelmini; Luca; Pezzatti; Gianni Boris; Jermini; Mauro; Schumpp; Olivier; Debonneville; Christophe; Marcolin; Enrico; Krebs; Patrik; Conedera; Marco

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Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera)

Source

MDPI (mdpi.com)

URL

https://www.mdpi.com/2079-7737/11/7/978

Date

2022-06-28

Description

Abstract

Flavescence dorée (FD) is a grapevine disease caused by ‘Candidatus Phytoplasma vitis’ (FDp), which is epidemically transmitted by the Nearctic leafhopper Scaphoideus titanus. In this study, we applied dendrochronological techniques to analyse the response to FDp infections in terms of wood ring widths and anatomical structures of the xylem and phloem tissues of the trunk of the susceptible grapevine cultivar ‘Chardonnay.’ As a rule, grapevines are susceptible to water shortage and reduce their growth in diameter in case of summer drought. In the season of the external expression of FD symptoms, however, the ring width reductions are extreme and supersede any drought-induced effects. In addition, the anatomy of the phloem tissue in the year of the FD symptom expression appears heavily disarranged. Moreover, in the most suffering individuals, the xylem formation remains incomplete and mostly limited to the early wood tissue. In conclusion, even though the FD phytoplasma does not inhabit and replicate inside the xylem tissue, our results confirm existing indirect inhibiting effects on the ring growth and the xylem tissue formation in FDp-infected grapevines.

Keywords

categories = dendroecology,drought-stress,grapevine yellows,SPEI,southern Switzerland

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Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera)

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Biology

2022,

11(7), 978; https://doi.org/10.3390/biology11070978

Simple Summary

Keywords:dendroecology; drought-stress; grapevine yellows; SPEI; southern Switzerland

Figure 1

MDPI and ACS Style

Rizzoli, A.; Jelmini, L.; Pezzatti, G.B.; Jermini, M.; Schumpp, O.; Debonneville, C.; Marcolin, E.; Krebs, P.; Conedera, M. Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera). Biology 2022, 11, 978. https://doi.org/10.3390/biology11070978

AMA Style

Rizzoli A, Jelmini L, Pezzatti GB, Jermini M, Schumpp O, Debonneville C, Marcolin E, Krebs P, Conedera M. Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera). Biology. 2022; 11(7):978. https://doi.org/10.3390/biology11070978

Chicago/Turabian Style

Rizzoli, Attilio, Luca Jelmini, Gianni B. Pezzatti, Mauro Jermini, Olivier Schumpp, Christophe Debonneville, Enrico Marcolin, Patrik Krebs, and Marco Conedera. 2022. "Impact of the “Flavescence Dorée” Phytoplasma on Xylem Growth and Anatomical Characteristics in Trunks of ‘Chardonnay’ Grapevines (Vitis vinifera)" Biology 11, no. 7: 978. https://doi.org/10.3390/biology11070978

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