Potato Zebra Chip: An Overview of the Disease, Control Strategies, and Prospects.

Victoria Mora,Manikandan Ramasamy,Veronica Ancona,Mona B Damaj,Sonia Irigoyen,Carlos A Avila,Freddy Ibanez,Kranthi K Mandadi

doi:10.3389/fmicb.2021.700663

Victoria Mora, Manikandan Ramasamy + Show 6 more

Open Access

https://doi.org/10.3389/fmicb.2021.700663

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Abstract

Potato (Solanum tuberosum L.) is an important food crop worldwide. As the demand for fresh and processed potato products is increasing globally, there is a need to manage and control devastating diseases such as zebra chip (ZC). ZC disease causes major yield losses in many potato-growing regions and is associated with the fastidious, phloem-limited bacterium Candidatus Liberibacter solanacearum (CLso) that is vectored by the potato-tomato psyllid (Bactericera cockerelli Šulc). Current management measures for ZC disease mainly focus on chemical control and integrated pest management strategies of the psyllid vector to limit the spread of CLso, however, they add to the costs of potato production. Identification and deployment of CLso and/or the psyllid resistant cultivars, in combination with integrated pest management, may provide a sustainable long-term strategy to control ZC. In this review, we provide a brief overview of the ZC disease, epidemiology, current management strategies, and potential new approaches to manage ZC disease in the future.

Highlights

Potatoes (Solanum tuberosum L.) constitute a centuries-old world dietary staple, with total world production estimated at 368.2 million tons in 2018 (Faostat, 2020)
We provide a brief overview of the zebra chip (ZC) disease, epidemiology, current management strategies, and potential new approaches to manage ZC disease in the future
About one-third of United States grown potatoes are for processing, of which 63–83% are for frying, chipping and other packaged products, and the rest for fresh market, fodder, or used as seed (USDA, 2019)

Summary

INTRODUCTION

Potatoes (Solanum tuberosum L.) constitute a centuries-old world dietary staple, with total world production estimated at 368.2 million tons in 2018 (Faostat, 2020). Few hardy wild potatoes were crossed with their cultivated relatives to improve disease resistance, yield and quality for almost a century (Jansky et al, 2013). This yielded highly marketable improvements, like enhanced processing quality for chipping and frying, and resistance to some viruses and nematodes (Douches et al, 1996; Hirsch et al, 2013; Bethke et al, 2017). Their low genetic diversity led to vulnerability to pests and diseases, and acute inbreeding depression

EARLY REPORTS OF ZEBRA CHIP DISEASE

CLso HAPLOTYPES AND DIVERSITY

HOST PLANT RESISTANCE AND BREEDING STRATEGIES FOR ZC RESISTANCE

FUTURE PROSPECTS AND STRATEGIES FOR ZC RESISTANCE

CONCLUSION