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Review
. 2021 Sep 9;17(9):e1009813.
doi: 10.1371/journal.ppat.1009813. eCollection 2021 Sep.

Xylella fastidiosa: A reemerging plant pathogen that threatens crops globally

Claudia Castro  1 , Biagio DiSalvo  1 , M Caroline Roper  1
Affiliations
Review

Xylella fastidiosa: A reemerging plant pathogen that threatens crops globally

Claudia Castro et al. PLoS Pathog. .
No abstract available

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Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. PD of grapevine cycle.
Xylella fastidiosa is acquired by its xylem-feeding insect vectors, such as the GWSS and the BGSS, during the feeding process. Once acquired, it colonizes the insect’s foregut and forms robust biofilms (indicated by white arrows). X. fastidiosa is transmitted to a new host plant when the insect vector feeds on a new plant and deposits X. fastidiosa cells directly into the plant xylem. X. fastidiosa achieves systemic colonization of the xylem by enzymatic degradation of the xylem pit membranes that connect adjacent xylem vessels. X. fastidiosa colonization induces prolific production of balloon-shaped defense-related protrusions called tyloses in the xylem. Systemic colonization and vessel occlusion by bacterial biofilms and excess tylose production lead to PD symptom development. Photo credit for the BGSS: Rodrigo Krugner. Photo credit for the xylem longitudinal sections: Qiang Sun. Pit membrane photo reprinted from Ingel et al., 2019, Molecular Plant-Microbe Interactions Vol. 32, No. 10: 1402–1414. Insect foregut image reprinted from Rapicavoli et al., 2015, Applied and Environmental Microbiology Vol 81, No. 23: 8145–8154. Created with BioRender.com. BGSS, blue-green sharpshooter; GWSS, glassy-winged sharpshooter; PD, Pierce disease; PM, pit membrane; VW, vessel wall.
See this image and copyright information in PMC

References

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Publication types

Supplementary concepts