The considerable economic losses in citrus associated with ' Liberibacter' and ' Phytoplasma' presence have alerted all producing regions of the world. In Chile, none of these bacteria have been reported in citrus species. During the years 2017 and 2019, 258 samples presenting symptoms similar to those associated with the presence of these bacteria were examined. No detection of '. Liberibacter' associated with "huanglongbing" disease was obtained in the tested samples; therefore, this quarantine pest is maintained as absent in Chile. However, 14 plants resulted positive for phytoplasmas enclosed in subgroups 16SrV-A (12 plants) and 16SrXIII-F (2 plants). Although they have been found in other plant species, this is the first report of these phytoplasmas in citrus worldwide.
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http://dx.doi.org/10.3390/pathogens11010048 | DOI Listing |
Mol Plant Pathol
October 2024
Department of Plant Pathology, University of California, Davis, Davis, California, USA.
Plant Dis
October 2024
Fundecitrus, Pesquisa & Desenvolvimento, Araraquara, SP, Brazil.
The occurrence of 'Candidatus Liberibacter' spp. and '. Phytoplasma' spp.
View Article and Find Full Text PDFPhytopathology
August 2024
Department of Plant Sciences, University of Cambridge, Cambridge, U.K.
This scientometric study reviews the scientific literature and CABI distribution records published in 2022 to find evidence of major disease outbreaks and first reports of pathogens in new locations or on new hosts. This is the second time we have done this, and this study builds on our work documenting and analyzing reports from 2021. Pathogens with three or more articles identified in 2022 literature were , , species complexes, ' Liberibacter asiaticus', , formae specialis, and f.
View Article and Find Full Text PDFJ Insect Sci
September 2023
Department of Entomology and Nematology, Fort Lauderdale Research and Education Center, University of Florida, 3205 College Avenue, Davie, FL 33314-7719, USA.
Lethal bronzing (LB) and huanglongbing (HLB) are harmful plant diseases causing significant economic losses in Florida agriculture. Both diseases are caused by bacteria that are transmitted by Hemipteran insect vectors. Accurate detection of pathogens within insect vectors can help provide a better understanding of disease epidemiology.
View Article and Find Full Text PDFJ Econ Entomol
October 2023
Temperate Tree Fruit and Vegetable Research Unit, USDA-Agricultural Research Service, 24106 N. Bunn Road, Prosser, WA 99350, USA.
Plant pathogens that are transmitted by insect vectors cause considerable damage to crops when pests or pathogens are not detected early in the season and populations are not controlled. Knowledge of pathogen prevalence in insect pest populations can aid growers in their insect pest management decisions but requires the timely dissemination of results. This process requires that specimen capture, identification, nucleic acid extraction, and molecular detection of a pathogen(s) occur alongside a platform for sharing results.
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