A Pan-Global Study of Bacterial Leaf Spot of Chilli Caused by Xanthomonas spp.

Autor: Utami D; School of Agriculture and Food Sciences, Faculty of Science, The University of Queensland, Brisbane 4343, Australia.; Department of Agricultural Microbiology, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia., Meale SJ; School of Agriculture and Food Sciences, Faculty of Science, The University of Queensland, Brisbane 4343, Australia., Young AJ; School of Agriculture and Food Sciences, Faculty of Science, The University of Queensland, Brisbane 4343, Australia.
Jazyk: angličtina
Zdroj: Plants (Basel, Switzerland) [Plants (Basel)] 2022 Sep 01; Vol. 11 (17). Date of Electronic Publication: 2022 Sep 01.
DOI: 10.3390/plants11172291
Abstrakt: Bacterial Leaf Spot (BLS) is a serious bacterial disease of chilli ( Capsicum spp.) caused by at least four different Xanthomonas biotypes: X. euvesicatoria pv. euvesicatoria , X. euvesicatoria pv. perforans , X. hortorum pv. gardneri , and X. vesicatoria . Symptoms include black lesions and yellow halos on the leaves and fruits, resulting in reports of up to 66% losses due to unsalable and damaged fruits. BLS pathogens are widely distributed in tropical and subtropical regions. Xanthomonas is able to survive in seeds and crop residues for short periods, leading to the infections in subsequent crops. The pathogen can be detected using several techniques, but largely via a combination of traditional and molecular approaches. Conventional detection is based on microscopic and culture observations, while a suite of Polymerase Chain Reaction (PCR) and Loop-Mediated Isothermal Amplification (LAMP) assays are available. Management of BLS is challenging due to the broad genetic diversity of the pathogens, a lack of resilient host resistance, and poor efficacy of chemical control. Some biological control agents have been reported, including bacteriophage deployment. Incorporating stable host resistance is a critical component in ongoing integrated management for BLS. This paper reviews the current status of BLS of chilli, including its distribution, pathogen profiles, diagnostic options, disease management, and the pursuit of plant resistance.
Databáze: MEDLINE