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- Title
Identification of Lasiodiplodia pseudotheobromae Causing Fruit Rot of Citrus in China.
- Authors
Chen, Jianghua; Zhu, Zihang; Fu, Yanping; Cheng, Jiasen; Xie, Jiatao; Lin, Yang
- Abstract
Considering the huge economic loss caused by postharvest diseases, the identification and prevention of citrus postharvest diseases is vital to the citrus industry. In 2018, 16 decayed citrus fruit from four citrus varieties—Satsuma mandarin (Citrus unshiu), Ponkan (Citrus reticulata Blanco cv. Ponkan), Nanfeng mandarin (Citrus reticulata cv. nanfengmiju), and Sugar orange (Citrus reticulata Blanco)—showing soft rot and sogginess on their surfaces and covered with white mycelia were collected from storage rooms in seven provinces. The pathogens were isolated and the pathogenicity of the isolates was tested. The fungal strains were identified as Lasiodiplodia pseudotheobromae based on their morphological characteristics and phylogenetic analyses using the internal transcribed spacer regions (ITS), translation elongation factor 1-α gene (TEF), and beta-tubulin (TUB) gene sequences. The strains could infect wounded citrus fruit and cause decay within two days post inoculation, but could not infect unwounded fruit. To our knowledge, this is the first report of citrus fruit decay caused by L. pseudotheobromae in China.
- Subjects
CHINA; CITRUS fruits; MANDARIN orange; FRUIT rots; POSTHARVEST losses of crops; POSTHARVEST diseases; CITRUS fruit industry; ORANGES
- Publication
Plants (2223-7747), 2021, Vol 10, Issue 2, p202
- ISSN
2223-7747
- Publication type
Article
- DOI
10.3390/plants10020202