10.3389/fpls.2018.01960.s002 Florian Moret Florian Moret Christelle Lemaître-Guillier Christelle Lemaître-Guillier Claire Grosjean Claire Grosjean Gilles Clément Gilles Clément Christian Coelho Christian Coelho Jonathan Negrel Jonathan Negrel Lucile Jacquens Lucile Jacquens Guillaume Morvan Guillaume Morvan Grégory Mouille Grégory Mouille Sophie Trouvelot Sophie Trouvelot Florence Fontaine Florence Fontaine Marielle Adrian Marielle Adrian Image_2_Clone-Dependent Expression of Esca Disease Revealed by Leaf Metabolite Analysis.tiff Frontiers 2019 Vitis vinifera grapevine trunk diseases clone metabolomics Esca 3D fluorescence 2019-01-09 04:55:30 Figure https://frontiersin.figshare.com/articles/figure/Image_2_Clone-Dependent_Expression_of_Esca_Disease_Revealed_by_Leaf_Metabolite_Analysis_tiff/7563770 <p>Grapevine trutk diseases, especially Esca, are of major concern since they gradually alter vineyards worldwide and cause heavy economic losses. The expression of Esca disease symptoms depends on several factors, including the grapevine cultivar. In this context, a possible clone-dependent expression of the Esca disease was studied. Two clones of ‘Chardonnay’ grown in the same plot were compared according to their developmental and physiological traits, metabolome, and foliar symptom expression. Analysis of their leaf metabolome highlighted differences related to symptom expression. Interestingly, the content of a few specific metabolites exhibited opposite variations in leaves of symptomatic shoots of clones 76 and 95. Altogether this study showed a clone-dependent expression of Esca disease in ‘Chardonnay’ and the relevance of GC-MS and 3D fluorescence methods to analyze the impact of the disease on the leaf metabolome.</p>