The olive quick decline syndrome in south-east Italy: a threatening phytosanitary emergency

@article{Martelli2015TheOQ,
  title={The olive quick decline syndrome in south-east Italy: a threatening phytosanitary emergency},
  author={Giovanni Paolo Martelli and Donato Boscia and Francesco Porcelli and Maria Saponari},
  journal={European Journal of Plant Pathology},
  year={2015},
  volume={144},
  pages={235-243}
}
The olive quick decline syndrome (OQDS) is a disease that appeared suddenly a few years ago in the province of Lecce (Salento peninsula, southeastern Italy. [] Key Result The bacterium was isolated in culture and identified as a genotype of X. fastidiosa subsp. pauca, molecularly identical to an isolate from Costa Rica. Philaenus spumarius (meadow spittlebug), a froghopper quite common in the Salento area where it thrives on olive, was identified as the main vector. Disease eradication and sanitation of…
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Isolation and pathogenicity of Xylella fastidiosa associated to the olive quick decline syndrome in southern Italy
TLDR
Needle-inoculation experiments under different environmental conditions proved that the Salentinian isolate De Donno belonging to the subspecies pauca is able to multiply and systemically invade artificially inoculated hosts, reproducing symptoms observed in the field.
Informative note: Xylella, the olive grove in risk
During October 2013, in the olive grove of Lecce, damages from the ‘Olive Quick Decline Syndrome’ (OQDS) were identified for the first time in Europe. The major agent of this disease was defined as…
Predisposing Factors for “Olive Quick Decline Syndrome” in Salento (Apulia, Italy)
TLDR
The features characterizing the areas where OQDS first appeared and subsequently spread, described and discussed here, would point to a rather fragile environment where one or more adverse climatic and/or edaphic factors could have acted together.
Prevention and control of OQDS (olive quick decline syndrome) outbreaks caused by Xylella fastidiosa.
Network analysis reveals why Xylella fastidiosa will persist in Europe
TLDR
It is shown that, regardless of epidemiological uncertainties, the mere distribution of olive orchards in Southern Italy makes the chances of eradicating X. fastidiosa from the region extremely slim, and implies that Southern Italy is becoming a reservoir for the pathogen.
Updated pest categorisation of Xylella fastidiosa
TLDR
The criteria assessed by the Panel for consideration as a potential Union quarantine pest are met (the pathogen is present in the EU, but it has a restricted distribution and is under official control).
Experience Gained from Efforts to Contain an Olive Decline in Southern Italy and Research Needs to Manage it in the Mediterranean Region
TLDR
In this contest, an innovative model for the surveillance of Xf was developed and provided to the Plant Protection Service to support institutional decision making and includes multiple actors.
Xylella fastidiosa, a new plant pathogen that threatens global farming: Ecology, molecular biology, search for remedies.
  • E. Bucci
  • Biology
    Biochemical and biophysical research communications
  • 2018
Xylella fastidiosa subsp. pauca on olive in Salento (Southern Italy): infected trees have low in planta micronutrient content
Xylella fastidiosa subsp. pauca is associated with the olive quick decline syndrome in Salento (Apulia region, Southern Italy). The first outbreak of the disease was noticed in the Gallipoli…
Transmission of Xylella fastidiosa by naturally infected Philaenus spumarius (Hemiptera, Aphrophoridae) to different host plants
TLDR
Data show that field‐collected P. spumarius have high rates of X. fastidiosa infection and are competent vectors, which are necessary to generate disease management strategies.
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References

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TLDR
The identification of X. fastidiosa in OQDS-affected trees represents the first confirmed detection of this bacterium in the European Union (EU), but its exact role in the aetiology of this disease is yet to be determined.
FUNGAL SPECIES ASSOCIATED WITH A SEVERE DECLINE OF OLIVE IN SOUTHERN ITALY
TLDR
Isolations from discolored sapwood made on different growing media allowed the recovery of a number of fungi, Phaeoacremonium spp.
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TLDR
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TLDR
The bacterium Xylella fastidiosa, a xylem-inhabiting, vector-transmitted, Gram-negative, very slow growing bacterium, was cultured and properly described for the first time in 1987 as the cause of Pierce’s disease of grapevine and a number of so-called leaf scorch diseases in Prunus spp.
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TLDR
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TLDR
Sequencing of the amplified products from five housekeeping genes and of the PCR products obtained using the X. fastidiosa strain- specific primers showed that all these amplicons had 100% sequence identity with the homologous products amplified from diseased olive trees (Cariddi et al., 2014).
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TLDR
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TLDR
Molecular tests extended to almond and oleander trees with leaf scorching symptoms, growing next to diseased olive orchards, were positive for X. fastidiosa, and studies aimed at isolating the bacterium, determining the strain, evaluating its pathogenicity, and identifying the putative local vector are currently in progress.
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TLDR
The isolation in pure culture of the Xylella fastidiosa strain associated with the quick decline syndrome of olive was attempted from symptomatic, naturally infected olive and oleander plants, and a periwinkle seedling that had been exposed to, and was infected by Xyleella-positive spittlebugs.
Infectivity and Transmission of Xylella fastidiosa by Philaenus spumarius (Hemiptera: Aphrophoridae) in Apulia, Italy
TLDR
The discovery of Xylella fastidiosa from olive trees with “Olive quick decline syndrome” in October 2013 on the west coast of the Salento Peninsula prompted an immediate search for insect vectors of the bacterium, and transmission tests showed P. spumarius as a vector of X. fastidioa strain infecting olives trees in theSalento Peninsula, Italy.
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