Terahertz Study of Wood Structure as Impacted by Grapevine Trunk Diseases

Coquillat, Dominique; Meriguet, Yoann; Dyakonova, N.; Consejo, C.; Buzatu, P.; Torres, J.; Varani, L.; Perry, Jack; Fernández, Rodrigo Rodríguez; Merigeaud, S.; Verdeil, J-L.; Cardoso, Maïda; Goze-Bac, Christophe; Spilmont, A-S.; Larignon, Philippe; Péros, J. P.; Cunff, Loïc Le; Moisy, Christophe

doi:10.1109/irmmw-thz.2019.8874276

Cited by 1 publication

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If one favors the use of plant material that is old enough to allow the development of disease symptoms in the vineyard, as in the case of our study, it would be critical to develop instruments capable of assessing internal esca damage in the vineyard in a non-destructive procedure. Nondestructive measurement systems using magnetic resonance imaging (MRI) and X-ray tomography are under development 22,38,39 and will certainly be able to help with the implementation of non-destructive studies on old vines in the future. Such non-destructive measurement systems will also be important to study the dynamics of the development of internal necroses over the time.…”

Section: Discussionmentioning

confidence: 99%

Discovery of a locus associated with susceptibility to esca dieback in grapevine

Guillaume,

Emilce,

Vincent

et al. 2023

Preprint

View full text Add to dashboard Cite

Esca is the most destructive and predominant grapevine trunk diseases. The chronic infections and vine mortality caused by esca syndrome lead to huge economic losses and threatens the sustainability of vineyards worldwide. Although shown as associated with the presence of wood fungi, the etiology of esca remains still unclear and putatively involves multifactorial causes, which makes the development of effective control methods challenging. As differences in esca susceptibility had already been observed among grapevine varieties, we investigated in a biparental population the presence of genetic factors that can explain theses variations. Thanks to the destructive phenotyping of a 16-year-old vineyard plot, we discovered that the Gewurztraminer variety carries on chromosome 1 a locus linked to variations in trunk necrosis associated with esca, which we have named ENS1. Our study also suggests that there is a partial link between trunk vigor and necrosis due to esca. To our best knowledge, ENS1 is the first instance of genetic factor identified as involved in the limitation of necrosis associated to grapevine esca. While the identification of ENS1 alone may not provide a complete resolution of the esca issue, this discovery represents nonetheless a first step towards a genetic solution and paves the way for broader genetic investigations in the future.

show abstract

Section: Discussionmentioning

confidence: 99%