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- W4320167823 abstract "HomePlant DiseaseVol. 107, No. 8First Report of Rot Disease in Prunus salicina var. taoxingli Fruit Caused by Fusarium lateritium in China PreviousNext DISEASE NOTE OPENOpen Access licenseFirst Report of Rot Disease in Prunus salicina var. taoxingli Fruit Caused by Fusarium lateritium in ChinaQing Zeng, Ruiqi Liu, Tianrong Guo, Guo Yang, Xueyuan Han, and Yiwei MoQing ZengCollege of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this author, Ruiqi LiuCollege of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this author, Tianrong GuoCollege of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this author, Guo Yanghttps://orcid.org/0000-0002-1248-9232College of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this author, Xueyuan HanCollege of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this author, and Yiwei Mo†Corresponding author: Y. Mo; E-mail Address: [email protected]https://orcid.org/0000-0002-3683-8118College of Life Science, Shaoxing University, Shaoxing 312000, ChinaSearch for more papers by this authorAffiliationsAuthors and Affiliations Qing Zeng Ruiqi Liu Tianrong Guo Guo Yang Xueyuan Han Yiwei Mo † College of Life Science, Shaoxing University, Shaoxing 312000, China Published Online:2 Aug 2023https://doi.org/10.1094/PDIS-12-22-2859-PDNAboutSectionsPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmailWechat Shengzhou nane (Prunus salicina var. taoxingli), the main cultivated plum in Zhejiang Province, China, ripens in summer and is susceptible to microbial infection during the maturation stage because of high ambient temperature. In July 2022, Shengzhou nane fruits were found with symptoms of dark skin and gray-white lesions on their surface and an average disease incidence of approximately 16% (data obtained from investigation of 10 trees in each orchard and 50 fruits in each tree) in four orchards in Shengzhou City, Zhejiang Province, China. To isolate the pathogen, four symptomatic partially rotted fruits (about 25%) from four orchards were collected. The plum tissue from the margin of lesions was excised into small blocks (4 × 4 × 3 mm). Eight blocks were disinfested with 70% ethanol for 30 s and 2% NaClO for 3 min, rinsed at least twice with distilled water, and incubated on a PDA medium supplemented with 30.0 μg/ml of chloramphenicol at 25°C for 5 days in the dark until sporulation. Using single-spore isolation, four uniform isolates were obtained. The purified mycelium of the isolates on PDA was milky white, and the reverse on agar was dark pink. Colonies grew with a mean mycelium growth rate of 4.62 ± 0.38 mm/day on PDA. Macroconidia were sickle-shaped, and the size was 27.27 ± 3.43 × 4.54 ± 0.39 μm (n = 50) with 2 to 3 septa. No microconidia or chlamydospores were observed. These morphological characteristics were consistent with previous descriptions of Fusarium lateritium (Yun et al. 2013). Molecular identification was performed by sequencing the nuclear ribosomal internal transcribed spacer (ITS) region gene with ITS1/ITS4 (White et al. 1990) and translation elongation factor-1α (TEF-1α) with EF1-728F/EF1-986R (Carbone and Kohn 1999). The representative sequences were submitted to GenBank (accession nos. OP315081 for ITS and OP394153 for TEF-1α). BLASTn results indicated that ITS and TEF-1α sequences shared 99.28 and 100% similarity, respectively, with two strains of F. lateritium (GenBank accession nos. MK311296.1 and JF740854.1). To fulfill Koch’s postulates, the isolated F. lateritium (TXL-IT5) with a conidial suspension (1 × 106 spores/ml) was inoculated on 10 freshly harvested healthy mature Shengzhou nane fruits (20 μl per fruit) after surface sterilization. The control fruits were inoculated with 20 μl of distilled water. The experiment was repeated three times. Fruits were kept in sealed plastic boxes at 25°C with 90% relative humidity in the dark. Four days after inoculation, all inoculated fruits were infected and exhibited symptoms similar to those found in naturally infected fruits, whereas the control fruits remained symptomless. The pathogen was reisolated from symptomatic rotten fruits using the abovementioned method and identified as F. lateritium based on the morphological characteristics as well as ITS and TEF-1α gene sequences. In addition, this pathogen was reported to infect Dalbergia tonkinensis in North Vietnam (Nhung et al. 2018) and cause shoot dieback of Acer negundo in northeast Poland (Patejuk et al. 2022) and rot of Chinese cherry during postharvest storage (Wang et al. 2021). However, to the best of our knowledge, this is the first report of F. lateritium causing rot on Shengzhou nane fruits. Our findings serve as a warning for scientists and growers who should pay attention to this disease and take effective control strategies to reduce epidemics of this disease in China and other regions.The author(s) declare no conflict of interest.References:Carbone, I., and Kohn, L. M. 1999. Mycologia 91:553. https://doi.org/10.1080/00275514.1999.12061051 Crossref, ISI, Google ScholarNhung, N. P., et al. 2018. Australas. Plant Pathol. 47:317. https://doi.org/10.1007/s13313-018-0562-z Crossref, ISI, Google ScholarPatejuk, K., et al. 2022. Plant Dis. 106:1519. https://doi.org/10.1094/PDIS-06-21-1294-PDN Link, ISI, Google ScholarWang, C., et al. 2021. Crop Prot. 141:105496. https://doi.org/10.1016/j.cropro.2020.105496 Crossref, ISI, Google ScholarWhite, T. J., et al. 1990. Page 315 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, CA. Crossref, Google ScholarYun, H. Y., et al. 2013. Plant Dis. 97:1378. https://doi.org/10.1094/PDIS-01-13-0124-PDN Link, ISI, Google ScholarFunding: Funding was provided by the Public Welfare Projects of Zhejiang Province in China (grant nos. LGN20C150004 and LGN22C150002) and National Natural Science Foundation of China (grant no. 32202125).The author(s) declare no conflict of interest.DetailsFiguresLiterature CitedRelated Vol. 107, No. 8 August 2023SubscribeISSN:0191-2917e-ISSN:1943-7692 Download Metrics Article History Issue Date: 29 Aug 2023Published: 2 Aug 2023First Look: 12 Feb 2023Accepted: 30 Jan 2023 Page: 2551 Information© 2023 The American Phytopathological SocietyFundingPublic Welfare Projects of Zhejiang Province in ChinaGrant/Award Number: LGN20C150004Grant/Award Number: LGN22C150002National Natural Science Foundation of ChinaGrant/Award Number: 32202125KeywordsFusarium lateritiummolecular identificationPrunus salicina var. taoxingliThe author(s) declare no conflict of interest.PDF download" @default.
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- W4320167823 title "First Report of Rot Disease in <i>Prunus salicina</i> var. <i>taoxingli</i> Fruit Caused by <i>Fusarium lateritium</i> in China" @default.
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