Grapevine phenolic compounds influence cell surface adhesion of Xylella fastidiosa and bind to lipopolysaccharide

Lee, Steven A.; Wallis, Christopher M.; Rogers, Elizabeth E.; Burbank, Lindsey

doi:10.1371/journal.pone.0240101

Cited by 9 publications

(4 citation statements)

References 54 publications

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“…Although none of these compounds inhibited bacterial growth in a significant way, some of them, such as epicatechin and gallic acid, reduced cell surface adhesion. In addition, cell–cell aggregation decreased with resveratrol treatment [ 56 ].…”

Section: Current Attempts To Control X Fastidiosa In Olive—state Of the Artmentioning

confidence: 99%

Xylella fastidiosa in Olive: A Review of Control Attempts and Current Management

Morelli

García-Madero²,

Jos

et al. 2021

Microorganisms

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Since 2013, Xylella fastidiosa Wells et al. has been reported to infect several hosts and to be present in different areas of Europe. The main damage has been inflicted on the olive orchards of southern Apulia (Italy), where a severe disease associated with X. fastidiosa subspecies pauca strain De Donno has led to the death of millions of trees. This dramatic and continuously evolving situation has led to European and national (Italian and Spanish) measures being implemented to reduce the spread of the pathogen and the associated olive quick decline syndrome (OQDS). Research has been also carried out to find solutions to better and directly fight the bacterium and its main insect vector, Philaenus spumarius L. In the course of this frantic effort, several treatments based on chemical or biological substances have been tested, in addition to plant breeding techniques and integrated pest management approaches. This review aims to summarize the attempts made so far and describe the prospects for better management of this serious threat, which poses alarming questions for the future of olive cultivation in the Mediterranean basin and beyond.

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Section: Current Attempts To Control X Fastidiosa In Olive—state Of the Artmentioning

confidence: 99%

Xylella fastidiosa in Olive: A Review of Control Attempts and Current Management

Morelli

García-Madero²,

Jos

et al. 2021

Microorganisms

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“…GA was also evaluated for its ability to inhibit bacterial cell adhesion and biofilm formation. Indeed, GA inhibited bacterial adhesion in Streptococcus thermophilus , Staphylococcus aureus, and Xylella fastidiosa [ 48 , 49 ]. To our knowledge, there is no evidence regarding the interactions between HAS or CH with fungal cells as anti-aggregative and anti-adhesive molecules; thus, such mechanisms need to be deeply investigated in order to reveal novel antifungal modes of action.…”

Section: Discussionmentioning

confidence: 99%

Boosting Immunity and Management against Wheat Fusarium Diseases by a Sustainable, Circular Nanostructured Delivery Platform

Francesconi

Ronchetti

Camaioni

et al. 2023

Plants

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Fusarium head blight (FHB) and Fusarium crown rot (FCR) are managed by the application of imidazole fungicides, which will be strictly limited by 2030, as stated by the European Green Deal. Here, a novel and eco-sustainable nanostructured particle formulation (NPF) is presented by following the principles of the circular economy. Cellulose nanocrystals (CNC) and resistant starch were obtained from the bran of a high amylose (HA) bread wheat and employed as carrier and excipient, while chitosan and gallic acid were functionalized as antifungal and elicitor active principles. The NPF inhibited conidia germination and mycelium growth, and mechanically interacted with conidia. The NPF optimally reduced FHB and FCR symptoms in susceptible bread wheat genotypes while being biocompatible on plants. The expression level of 21 genes involved in the induction of innate immunity was investigated in Sumai3 (FHB resistant) Cadenza (susceptible) and Cadenza SBEIIa (a mutant characterized by high-amylose starch content) and most of them were up-regulated in Cadenza SBEIIa spikes treated with the NPF, indicating that this genotype may possess an interesting genomic background particularly responsive to elicitor-like molecules. Quantification of fungal biomass revealed that the NPF controlled FHB spread, while Cadenza SBEIIa was resistant to FCR fungal spread. The present research work highlights that the NPF is a powerful weapon for FHB sustainable management, while the genome of Cadenza SBEIIa should be investigated deeply as particularly responsive to elicitor-like molecules and resistant to FCR fungal spread.

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“…In another study, other phenolic compounds, such as gallic acid, epicatechin, and resveratrol, determined no or very low inhibition of the growth of Xf ; however, epicatechin and gallic acid reduced cell surface adhesion. In addition, cell–cell aggregation decreased with resveratrol treatment [ 121 ].…”

Section: Agrochemicals and Minerals Used For The Treatment Of ...mentioning

confidence: 99%

Thidiazuron: New Trends and Future Perspectives to Fight Xylella fastidiosa in Olive Trees

et al. 2022

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These days, most of our attention has been focused on the COVID-19 pandemic, and we have often neglected what is happening in the environment. For instance, the bacterium Xylella fastidiosa re-emerged as a plant pathogen of global importance in 2013 when it was first associated with an olive tree disease epidemic in Italy, called Olive Quick Decline Syndrome (OQDS), specifically caused by X. fastidiosa subspecies pauca ST53, which affects the Salento olive trees (Apulia, South-East Italy). This bacterium, transmitted by the insect Philaenus spumarius, is negatively reshaping the Salento landscape and has had a very high impact in the production of olives, leading to an increase of olive oil prices, thus new studies to curb this bacterium are urgently needed. Thidiazuron (TDZ), a diphenylurea (N-phenyl-1,2,3-thiadiazol-5-yl urea), has gained considerable attention in recent decades due to its efficient role in plant cell and tissue culture, being the most suitable growth regulator for rapid and effective plant production in vitro. Its biological activity against bacteria, fungi and biofilms has also been described, and the use of this low-cost compound to fight OQDS may be an intriguing idea.

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Grapevine phenolic compounds influence cell surface adhesion of Xylella fastidiosa and bind to lipopolysaccharide

Cited by 9 publications

References 54 publications

Xylella fastidiosa in Olive: A Review of Control Attempts and Current Management

Xylella fastidiosa in Olive: A Review of Control Attempts and Current Management

Boosting Immunity and Management against Wheat Fusarium Diseases by a Sustainable, Circular Nanostructured Delivery Platform

Thidiazuron: New Trends and Future Perspectives to Fight Xylella fastidiosa in Olive Trees

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