7 documents found, page 1 of 1
Hormonal changes in tolerant and susceptible grapevine leaves under powdery mil...
Rute, Amaro; Diniz, Inês; Santos, Helena; Pimentel, Diana; Rego, Cecília; Mithöfer, Axel; Fortes, Ana MargaridaThe biotrophic fungus Erysiphe necator causes Powdery Mildew (PM) in grapevine. Phytohormones are major modulators of defensive responses in plants but the analysis of the hormonome associated with grapevine tolerance and susceptibility against this pathogen has not been elucidated. In this study, changes in hormonal profiling were compared between a tolerant (Vitis rupestris × riparia cv. 101-14 Millardet et d...
Effect of the Combined Treatments with LC2017 and Trichoderma atroviride Strain...
Reis, Pedro; Mondello, Vincenzo; Diniz, Inês; Alves, Artur; Rego, Cecília; Fontaine, FlorenceGrapevine trunk diseases constitute one of the major problems for viticulture worldwide, with Botryosphaeria dieback considered as one of the most important of these diseases. In this work, we aimed to (i) evaluate the effect of the combination of two products, Esquive® (a Trichoderma-based product) and LC2017 (a low-copper-based product), in the control of Lasiodiplodia theobromae, by evaluating the internal l...
Combining an HA + CU (II) site-targeted copper-based product with a pruning wou...
Reis, Pedro; Gaspar, Ana; Alves, Artur; Fontaine, Florence; Rego, CecíliaThe genus Lasiodiplodia has been reported from several grape growing regions and is considered as one of the fastest wood colonizers, causing Botryosphaeria dieback. The aim of this study was to (i) evaluate the efficacy of Esquive®, a biocontrol agent, on vineyard pruning wound protection, applied single or, in a combined protection strategy with a new site-targeted copper-based treatment (LC2017), and (ii) co...
Transcriptional, hormonal, and metabolic changes in susceptible grape berries u...
Pimentel, Diana; Amaro, Rute; Erban, Alexander; Mauri, Nuria; Soares, Flávio; Rego, Cecília; Martínez-Zapater, José M.; Mithofer, Axel; Kopka, JoachimGrapevine (Vitis vinifera) berries are extremely sensitive to infection by the biotrophic pathogen Erysiphe necator, causing powdery mildew disease with deleterious effects on grape and wine quality. The combined analysis of the transcriptome and metabolome associated with this common fungal infection has not been previously carried out in any fruit. In order to identify the molecular, hormonal, and metabolic m...
Early season symptoms of stem, inflorescences and flowers of grapevine associat...
Reis, Pedro; Gaspar, Ana; Alves, Artur; Fontaine, Florence; Lourenço, Inês; Saramago, José; Mota, Mariana; Rego, CecíliaBotryosphaeria dieback caused by several Botryosphaeriaceae species is one of the most important grapevine trunk diseases a ecting vineyards worldwide. These fungi cause wedge-shaped perennial cankers and black streaking of the wood and have also been associated with intervein leaf chlorosis, dried or mummified berries, and eventually, the death of the plant. Early season symptoms may sometimes be disregarded b...
Multi-gene analysis and morphology reveal novel Ilyonectria species associated ...
Cabral, Ana; Rego, Cecília; Nascimento, Teresa; Oliveira, Helena; Groenewald, Johannes; Crous, Pedro W.Black foot is an important disease of grapevines, which has in recent years been recorded with increased incidence and severity throughout the world, affecting grapevines both in nurseries and young vineyards. In the past the disease has been associated with infections by Ilyonectria macrodidyma, Ilyonectria liriodendri, Campylocarpon fasciculare, and Campylocarpon pseudofasciculare. Based on published data, a ...
Cylindrocarpon root rot: multi-gene analysis reveals novel species within the I...
Cabral, Ana; Groenewald, Johannes; Rego, Cecília; Oliveira, Helena; Crous, Pedro W.Abstract Ilyonectria radicicola and its Cylindrocarpon-like anamorph represent a species complex that is commonly associated with root rot disease symptoms on a range of hosts. During the course of this study, several species could be distinguished from I. radicicola sensu stricto based on morphological and culture characteristics. DNA sequence analysis of the partial β-tubulin, histone H3, translation elongati...