Phloem and xylem modifications of Vitis vinifera stems in response to flavescence dorée phytoplasma infection

2020 ◽  
Author(s):  
Luca Jelmini ◽  
Attilio Rizzoli ◽  
Mauro Jermini ◽  
Olivier Schumpp ◽  
Marco Conedera
Keyword(s):  
Vitis Vinifera ◽  
Flavescence Dorée ◽  
Phytoplasma Infection

scholarly journals Recovery of Vitis vinifera L. cv. ‘Kékfrankos’ from ‘bois noir’ disease

2019 ◽  
Vol 156 (3) ◽  
pp. 987-991
Author(s):  
Anikó Mátai ◽  
Péter Teszlák ◽  
Gábor Jakab
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Photosynthetic Performance ◽  
Photochemical Quenching ◽  
Vitis Vinifera L ◽  
Bois Noir ◽  
Flavescence Dorée ◽  
Exchange Performance ◽  
Concentration Changes ◽  
Non Photochemical Quenching

AbstractInvestigation of diseases caused by phytoplasmas, a group of cell-wall-less gram-positive bacteria has received significant attention in plant pathology. Grapevine is a host of two, genetically distinct phytoplasmas: Line Flavescence dorée (FD) phytoplasma associated to ‘flavescence dorée’ and ‘Candidatus Phytoplasma solani’ responsible for ‘bois noir’ (BN) disease. In the current study, we focused on BN diseased grapevines (Vitis vinifera L. cv. ‘Kékfrankos’), measured their photosynthetic performance and leaf hydrogen peroxide (H2O2) concentration. The latter is generally considered as a key molecule in the process of ‘recovery’ which is a spontaneous and unpredictable long-term remission of disease symptoms. This phenomenon also occurred during the time of our experiment. Infection resulted in reduced gas exchange performance and maximum quantum efficiency of PSII with an increased regulated non-photochemical quenching of PSII and H2O2 concentration. Changes in gas exchange seem to be a systemic response, while reduced photochemistry is a local response to ‘Ca. P. solani’ infection. H2O2 accumulation in BN phytoplasma infected plants, unlike in FD disease, was found to be a typical response to the appearance of a biotic stressor.

scholarly journals Flavescence Dorée-Derived Leaf Yellowing in Grapevine (Vitis vinifera L.) Is Associated to a General Repression of Isoprenoid Biosynthetic Pathways

2020 ◽  
Vol 11 ◽  
Author(s):  
António Teixeira ◽  
Viviana Martins ◽  
Sarah Frusciante ◽  
Telmo Cruz ◽  
Henrique Noronha ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Biosynthetic Pathways ◽  
Flavescence Dorée ◽  
Leaf Yellowing

scholarly journals Flavescence dorée phytoplasma affecting grapevine (Vitis vinifera) newly reported in Portugal

2010 ◽  
Vol 59 (2) ◽  
pp. 398-398 ◽  
Author(s):  
E. de Sousa ◽  
P. Casati ◽  
F. Cardoso ◽  
C. Baltazar ◽  
G. Durante ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Flavescence Dorée

scholarly journals Contrasting Susceptibilities to Flavescence Dorée in Vitis vinifera, Rootstocks and Wild Vitis Species

2016 ◽  
Vol 7 ◽  
Author(s):  
Sandrine Eveillard ◽  
Camille Jollard ◽  
Fabien Labroussaa ◽  
Dima Khalil ◽  
Mireille Perrin ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Vitis Species ◽  
Flavescence Dorée

Methyl jasmonate triggers metabolic responses and gene expression on Vitis vinifera cultivar Loureiro infected with “flavescence dorée”

2019 ◽  
Vol 9 (1) ◽  
pp. 165
Author(s):  
Manuel J.R.A. Oliveira ◽  
Marta W. Vasconcelos ◽  
Inês C. Lemos ◽  
Assunta Bertaccini ◽  
Susana M.P. Carvalho
Keyword(s):  
Gene Expression ◽  
Vitis Vinifera ◽  
Methyl Jasmonate ◽  
Metabolic Responses ◽  
Flavescence Dorée ◽  
Vinifera Cultivar

scholarly journals Susceptibility to flavescence dorée of different Vitis vinifera genotypes from north‐western Italy

2020 ◽  
Author(s):  
Matteo Ripamonti ◽  
Mattia Pegoraro ◽  
Cristina Morabito ◽  
Ivana Gribaudo ◽  
Andrea Schubert ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Flavescence Dorée ◽  
North Western
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