Bitter rot and Glomerella leaf spot (GLS) of apples, caused by species, are major diseases of apples around the world. A total of 98 isolates were obtained from apple fruits with bitter rot, and 53 isolates were obtained from leaves with leaf spot in the primary apple production regions in China. These isolates were characterized morphologically, and five gene regions (, , , -1 and 2) were sequenced for each isolate. A phylogenetic analysis, combined with a comparison of the morphological, cultural and pathogenic characters, sorted bitter rot isolates into six species: , , sensu stricto, , and one new species, Dandan Fu & G.Y. Sun. Among these, was the predominant pathogen associated with bitter rot. Isolates from leaf spot were identified as two species, and . This is the first report of as an apple bitter rot pathogen worldwide, and the results provide important insights into the diversity of species in China.
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http://dx.doi.org/10.3390/jof8070740 | DOI Listing |
Front Microbiol
November 2024
Department of Plant Medicals, Andong National University, Andong, Republic of Korea.
Fungi are the prominent phytopathogens that have significant impact on the productivity of agriculture worldwide. species have been extensively studied for the production of various bioactive metabolites. These metabolites have been used as biocontrol agents for the management of diseases caused by phytopathogenic fungi.
View Article and Find Full Text PDFPlant Pathol J
December 2024
Department of Plant Medicals, Andong National University, Andong 36729, Korea.
The application of synthetic fungicides has resulted in environmental pollution and adverse effects on non-target species. To reduce the use of agrochemicals, crop disease management requires microbial biological control agents. Bacillus-related genera produce secondary metabolites to control fungal pathogens.
View Article and Find Full Text PDFPlants (Basel)
November 2024
Laboratório de Epidemiologia para Manejo Integrado de Doenças de Plantas (LEMID), Departamento de Fitotecnia e Fitossanidade, Universidade Federal do Paraná, Rua dos Funcionários, 1540, Curitiba 80035-050, Brazil.
Glomerella leaf spot (GLS) and bitter rot (BR) are severe diseases of apple. and are the main species in Brazil. To control GLS and BR in Brazilian apple orchards, mancozeb and thiophanate-methyl fungicides are still used despite reported resistance to these active ingredients.
View Article and Find Full Text PDFPlant Dis
October 2024
Valent BioSciences Corp, Mycorrhizal Applications, 350 South Road, Brentwood, New Hampshire, United States, 03833;
Chitosan is a natural product that has potential use in agriculture for managing diseases. Chitosan has been shown to effectively suppress storage rots when applied postharvest. Application of chitosan pre- and postharvest has potential to manage both latent and postharvest rots but these effects are not well studied.
View Article and Find Full Text PDFJ Fungi (Basel)
September 2024
Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade, Serbia.
Species of the genus are among the most important plant pathogens globally, as they are capable of infecting many hosts-apple ( spp.) and other fruit and woody plant species-but also vegetable crops, cereals, legumes, and other annual and perennial herbaceous plants. The apple ( spp.
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