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• W2885349793 abstract "HomePlant DiseaseVol. 103, No. 1First Report of Fusarium proliferatum Causing Trunk Canker on Ilex cornuta in China PreviousNext DISEASE NOTES OPENOpen Access licenseFirst Report of Fusarium proliferatum Causing Trunk Canker on Ilex cornuta in ChinaF. S. Feng and H. LiF. S. FengSearch for more papers by this author and H. Li†Corresponding author: H. Li; E-mail: E-mail Address: 184559251@qq.comhttp://orcid.org/0000-0003-1788-4175Search for more papers by this authorAffiliationsAuthors and Affiliations F. S. Feng H. Li † , Hunan Provincial Key Laboratory for Control of Forest Diseases and Pests, Key Laboratory for Non-wood Forest Cultivation and Conservation of Ministry of Education, Central South University of Forestry and Technology, Changsha 410004, P.R. China. Published Online:25 Oct 2018https://doi.org/10.1094/PDIS-05-18-0779-PDNAboutSectionsSupplemental ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmailWechat Ilex cornuta, commonly known as Chinese holly, is widely distributed in China, where it is valued horticulturally for its attractive and distinctive rectangular foliage and large red berries. In March 2018, I. cornuta showing symptoms of an unknown disease was obtained from native woodlands in Tiao-ma prefecture of Changsha City, China (28°8′N, 112°59′E). Initial symptoms included trunk cankers with shallow black-colored rot as well as early defoliation. Over time, the cankers extended to lateral branches. Necrotic lesions from trunks with canker of I. cornuta were surface disinfested with 0.4% sodium hypochlorite solution for 1 min, and diseased tissue pieces were plated on potato dextrose agar. A Fusarium sp. (code HNCSTM4) was consistently isolated from diseased tissues, and a monosporal culture was obtained by single-spore isolation. The fungal colonies appeared fluffy; hyphae were densely branched and developed white to flavescent. Aerial mycelium was dense with a purple color on the lower surface of the plates when kept for 7 days at 25 ± 2°C. The average growth of colonies was 4.6 mm per day (n = 7). Macroconidia were 28.2 to 39.8 × 2.4 to 3.5 μm (length × width), straight to slightly curved, sickle shaped, with three to five septa. These morphological characteristics were consistent with previous descriptions of Fusarium (Mun et al. 2012; Summerell et al. 2003) and correspond to the species F. proliferatum (Wang et al. 2015). To identify the isolate of the pathogen molecularly, a polymerase chain reaction (PCR) was conducted using primers targeted to the internal transcribed spacer (ITS) regions of the rRNA gene (ITS4, 5′-TCCTCCGCTTATTGATATGC-3′; ITS5, 5′-GGAAGTAAAAGTCGTAACAAGG-3′) (Rampersad et al. 2011). The PCR product was sequenced and aligned with GenBank sequences. BLAST analysis of ITS sequences showed that the sequences were 100% identical to F. proliferatum, and the ITS region obtained in this study was deposited under the GenBank accession number MH332769. In addition, an F. proliferatum-specific amplicon was obtained and sequenced (GenBank accession no. MH700253) using the primer pairs PRO1 (5′-CTTTCCGCCAAGTTTCTTC-3′) and PRO2 (5′-TGTCAGTAACTCGACGTTGTTG-3′) for F. proliferatum (Mulè et al. 2004). Thus, both morphological and molecular characteristics identified the pathogen as F. proliferatum. Pathogenicity was confirmed by spraying a conidial suspension (1 × 106 conidia/ml) onto nine branches of 1-year-old potted I. cornuta plants, which were wounded with a sterilized needle. Control branches were sprayed with sterile distilled water. Inoculated plants and the controls were kept under greenhouse conditions at 25°C and 90% relative humidity (day/night). The experiment was repeated three times on different days. Twenty days following inoculation, F. proliferatum-infected plants exhibited canker development and branch dieback, whereas control plants remained healthy. The pathogen was repeatedly isolated from inoculated I. cornuta plants, thus satisfying Koch’s postulates. To our knowledge, this is the first report of F. proliferatum causing trunk canker on I. cornuta in China. These findings will help in developing better preventive measures in accordance with the emergence of the new pathogen.References:Mulè, G., et al. 2004. Eur. J. Plant Pathol. 110:495. https://doi.org/10.1023/B:EJPP.0000032389.84048.71 Crossref, ISI, Google ScholarMun, H. Y., et al. 2012. Plant Pathol. J. 28:49. https://doi.org/10.5423/PPJ.NT.10.2011.0195 Crossref, ISI, Google ScholarRampersad, S. N., et al. 2011. Plant Dis. 95:1313. https://doi.org/10.1094/PDIS-03-11-0194 Link, ISI, Google ScholarSummerell, B. A., et al. 2003. Plant Dis. 87:117. https://doi.org/10.1094/PDIS.2003.87.2.117 Link, ISI, Google ScholarWang, Y., et al. 2015. Plant Dis. 99:1180. https://doi.org/10.1094/PDIS-12-14-1351-PDN Link, ISI, Google ScholarFunding: National Natural Science Foundation of China grant/award number 31570641.DetailsFiguresLiterature CitedRelated Vol. 103, No. 1 January 2019SubscribeISSN:0191-2917e-ISSN:1943-7692 Metrics Article History Issue Date: 4 Jan 2019Published: 25 Oct 2018First Look: 8 Aug 2018Accepted: 6 Aug 2018 Pages: 155-155 Information© 2019 The American Phytopathological SocietyFundingNational Natural Science Foundation of ChinaGrant/Award Number: 31570641Cited byFirst Report of Fusarium proliferatum Associated with Leaf Yellow on Alternanthera philoxeroides in ChinaY. L. Liu, Z. H. Xie, S. W. Lian, J. Q. Luo, and P. Y. Cheng1 March 2023 | Plant Disease, Vol. 0, No. 0Fusarium Dry Rot of Garlic Bulbs Caused by Fusarium proliferatum: A Review12 July 2022 | Horticulturae, Vol. 8, No. 7Fusarium proliferatumCABI Compendium, Vol. CABI Compendium" @default.
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• W2885349793 title "First Report of <i>Fusarium proliferatum</i> Causing Trunk Canker on <i>Ilex cornuta</i> in China" @default.
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