Next Article in Journal
Sequence Comparison of Vaginolysin from Different Gardnerella Species
Next Article in Special Issue
Phenotypic and Phylogenetic Characterization of Cu Homeostasis among Xylella fastidiosa Strains
Previous Article in Journal
A Review of Risk Factors of African Swine Fever Incursion in Pig Farming within the European Union Scenario
Previous Article in Special Issue
Orthology-Based Estimate of the Contribution of Horizontal Gene Transfer from Distantly Related Bacteria to the Intraspecific Diversity and Differentiation of Xylella fastidiosa
Article

Further In Vitro Assessment and Mid-Term Evaluation of Control Strategy of Xylella fastidiosa subsp. pauca in Olive Groves of Salento (Apulia, Italy)

1
Council for Agricultural Research and Economics (CREA), Research Centre for Plant Protection and Certification, 00156 Roma, Italy
2
Dipartimento di Biologia Ambientale, Sapienza University of Rome, 00185 Roma, Italy
3
Council for Agricultural Research and Economics (CREA), Research Centre for Olive, Fruit and Citrus Crops, 00134 Roma, Italy
*
Authors to whom correspondence should be addressed.
Pathogens 2021, 10(1), 85; https://doi.org/10.3390/pathogens10010085
Received: 16 October 2020 / Revised: 13 January 2021 / Accepted: 14 January 2021 / Published: 19 January 2021
During recent years; Xylella fastidiosa subsp. pauca (Xfp) has spread in Salento causing relevant damage to the olive groves. Measures to contain the spreading of the pathogen include the monitoring of the areas bordering the so-called “infected” zone and the tree eradication in case of positive detection. In order to provide a control strategy aimed to maintain the tree productivity in the infected areas, we further evaluated the in vitro and in planta mid-term effectiveness of a zinc-copper-citric acid biocomplex. The compound showed an in vitro bactericidal activity and inhibited the biofilm formation in representative strains of X. fastidiosa subspecies, including Xfp isolated in Apulia from olive trees. The field mid-term evaluation of the control strategy assessed by quantitative real-time PCR in 41 trees of two olive groves of the “infected” area revealed a low concentration of Xfp over the seasons upon the regular spraying of the biocomplex over 3 or 4 consecutive years. In particular, the bacterial concentration lowered in July and October with respect to March, after six consecutive treatments. The trend was not affected by the cultivar and it was similar either in the Xfp-sensitive cultivars Ogliarola salentina and Cellina di Nardò or in the Xfp-resistant Leccino. Moreover, the scoring of the number of wilted twigs over the seasons confirmed the trend. The efficacy of the treatment in the management of olive groves subjected to a high pathogen pressure is highlighted by the yielded a good oil production View Full-Text
Keywords: olive quick decline syndrome; zinc; copper; real-time PCR; fertilizer olive quick decline syndrome; zinc; copper; real-time PCR; fertilizer
Show Figures

Figure 1

MDPI and ACS Style

Tatulli, G.; Modesti, V.; Pucci, N.; Scala, V.; L’Aurora, A.; Lucchesi, S.; Salustri, M.; Scortichini, M.; Loreti, S. Further In Vitro Assessment and Mid-Term Evaluation of Control Strategy of Xylella fastidiosa subsp. pauca in Olive Groves of Salento (Apulia, Italy). Pathogens 2021, 10, 85. https://doi.org/10.3390/pathogens10010085

AMA Style

Tatulli G, Modesti V, Pucci N, Scala V, L’Aurora A, Lucchesi S, Salustri M, Scortichini M, Loreti S. Further In Vitro Assessment and Mid-Term Evaluation of Control Strategy of Xylella fastidiosa subsp. pauca in Olive Groves of Salento (Apulia, Italy). Pathogens. 2021; 10(1):85. https://doi.org/10.3390/pathogens10010085

Chicago/Turabian Style

Tatulli, Giuseppe, Vanessa Modesti, Nicoletta Pucci, Valeria Scala, Alessia L’Aurora, Simone Lucchesi, Manuel Salustri, Marco Scortichini, and Stefania Loreti. 2021. "Further In Vitro Assessment and Mid-Term Evaluation of Control Strategy of Xylella fastidiosa subsp. pauca in Olive Groves of Salento (Apulia, Italy)" Pathogens 10, no. 1: 85. https://doi.org/10.3390/pathogens10010085

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop