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. 2023 Jan 9;21(1):e07726.
doi: 10.2903/j.efsa.2023.7726. eCollection 2023 Jan.

Update of the Xylella spp. host plant database - systematic literature search up to 30 June 2022

European Food Safety Authority (EFSA); Alice Delbianco, Davide Gibin, Luca Pasinato, Donato Boscia, Massimiliano Morelli

Update of the Xylella spp. host plant database - systematic literature search up to 30 June 2022

European Food Safety Authority (EFSA) et al. EFSA J. .

Abstract

This scientific report provides an update of the Xylella spp. host plant database, aiming to provide information and scientific support to risk assessors, risk managers and researchers dealing with Xylella spp. Upon a mandate of the European Commission, EFSA created and regularly updates a database of host plant species of Xylella spp. The current mandate covers the period 2021-2026. This report is related to the seventh version of the database published in Zenodo in the EFSA Knowledge Junction community, covering literature published from 1 January 2022 up to 30 June 2022, and recent Europhyt outbreak notifications. Informative data have been extracted from 30 selected publications. Fifteen new host plants were identified and added to the database. Those plant species were reported from Brazil, France, Italy, Portugal and Spain, and infected by subsp. multiplex, pauca or unknown (i.e. not reported). No additional data were retrieved for X. taiwanensis. Two new STs (namely ST88 and ST89) belonging to subspecies multiplex were identified in host plants in natural conditions, and new information on the tolerant/resistant response of plant species to X. fastidiosa infection were added to the database. The overall number of Xylella spp. host plants determined with at least two different detection methods or positive with one method (between sequencing and pure culture isolation) reaches now 423 plant species, 194 genera and 68 families. Such numbers rise to 679 plant species, 304 genera and 88 families if considered regardless of the detection methods applied.

Keywords: Xylella fastidiosa; Xylella spp.; data extraction; database; host plants; sequence types; subspecies.

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Figures

Figure 1
Figure 1
Flow diagram of the screening process
Figure 2
Figure 2
Number of host plant species according to the different categories (as described in Section 2.4.2). Plant species in category A are included in category B; plant species in category B are included in category C; plant species in category C are included in category D; plant species in category D are included in category E
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