A new leaf spot disease caused by Enterobacter cloacae in Coffea

Globally, coffee is one of the most widely consumed beverages, deeply ingrained in popular culture and social life. Coffea plants grow in hot and humid environments and are particularly susceptible to bacterial diseases. In 2022, a novel leaf spot disease was discovered in coffee plants in Haikou, C...

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Bibliographic Details
Published in:European journal of plant pathology 2024-09, Vol.170 (1), p.181-188
Main Authors: Fang, Yukai, Lin, Zheng, Lao, Guangshu, Liu, Wenbo, Miao, Weiguo, Jin, Pengfei
Format: Article
Language:English
Subjects:
Agriculture
Antibiotic sensitivity testing
Antibiotics
Bacteria
Bacterial diseases
Beverages
Biomedical and Life Sciences
Cefotaxime
Chloramphenicol
Chloromycetin
Coffee
Disease
Ecology
Enterobacter cloacae
Leafspot
Leaves
Life Sciences
Pathogenicity
Pathogens
Physical characteristics
Plant bacterial diseases
Plant Pathology
Plant Sciences
Sensitivity analysis
Spectinomycin
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Summary:Globally, coffee is one of the most widely consumed beverages, deeply ingrained in popular culture and social life. Coffea plants grow in hot and humid environments and are particularly susceptible to bacterial diseases. In 2022, a novel leaf spot disease was discovered in coffee plants in Haikou, China. In this study, we aimed to determine and characterize the causative agent of this coffee leaf spot disease. We isolated the causal organism from diseased leaves and named it K2. Strain K2 was identified using molecular identification, morphological characteristics, and biological tests. Furthermore, its pathogenicity was evaluated according to Koch’s postulates. Antibiotic sensitivity testing was performed according to the Clinical and Laboratory Standards Institute guidelines. Strain K2 was identified as Enterobacter cloacae, belonging to the Enterobacteriaceae family. Koch’s postulates indicated that strain K2 was a novel pathogenic bacterium responsible for the bacterial leaf spot disease in Coffea . Notably, the antibiotic sensitivity test indicated that strain K2 was highly sensitive to cefotaxime, chloramphenicol, and spectinomycin. Conclusively, we report the first instance of E. cloacae -caused coffee bacterial leaf spot disease in China. Our findings provide effective theoretical support for research on pathogens and preventing bacterial diseases in coffee plants.
ISSN:0929-1873
1573-8469
DOI:10.1007/s10658-024-02893-2