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- W2994788308 abstract "HomePlant DiseaseVol. 104, No. 5First Report of Anthracnose of Clausena lansium Caused by Colletotrichum scovillei in China PreviousNext DISEASE NOTES OPENOpen Access licenseFirst Report of Anthracnose of Clausena lansium Caused by Colletotrichum scovillei in ChinaC.-H. Lin, X.-P. Long, Z.-P. Li, Y. Zhang, J.-J. He, W.-B. Liu, and W.-G. MiaoC.-H. Lin†Corresponding author: C.-H. Lin; E-mail Address: lin3286320@126.comhttp://orcid.org/0000-0003-0978-4289College of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, X.-P. LongCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, Z.-P. LiCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, Y. ZhangCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, J.-J. HeCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, W.-B. LiuCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author, and W.-G. MiaoCollege of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. ChinaSearch for more papers by this author AffiliationsAuthors and Affiliations C.-H. Lin † X.-P. Long Z.-P. Li Y. Zhang J.-J. He W.-B. Liu W.-G. Miao College of Plant Protection, Hainan University/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou Hainan 570228, P.R. China Published Online:20 Feb 2020https://doi.org/10.1094/PDIS-08-19-1765-PDNAboutSectionsSupplemental ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmailWechat Wampee (Clausena lansium [Lour.] Skeels) is a tropical plant species native to southern China; its fruit can be consumed fresh or made into juice, jam, or succade. It was commonly cultivated in southern mainland China due to its medicinal value (He et al. 2019). During March 2019, anthracnose-like lesions were observed on all the tender leaves at a plantation (∼120 trees) in Zhanjiang City (21°19′45′′N, 110°16′9′′E), Guangdong Province of China. Lesions were brown and point-sized at first and then enlarged to light brown or red-brown sunken spots that enlarged to circular or irregular lesions with a water-soaked halo, and diseased leaves became distorted and wrinkled at last. Five symptomatic leaves were sampled from different trees for pathogen isolation. Lesion tissues were removed from the border between symptomatic and healthy tissue, surface sterilized in 75% ethanol solution (v/v) for 1 min, rinsed four times in sterile distilled water, air dried, plated on potato dextrose agar medium plates (PDA), and incubated at 28°C and a 12-h photoperiod. Similar fungal colonies developed from all plated tissues after 5 days. The colonies on PDA were white at the beginning and turned dark gray. Conidia were hyaline, aseptate, and cylindrical with both ends rounded or with one end round and one end narrowly acute. They measured 10.7 to 16.9 × 3.3 to 4.7 µm (average 12.5 × 3.8 µm, n = 100). Conidial appressoria were single, subglobose, ovate to clavate, and light brown to dark black. Among them, genomic DNA of three isolates (CL1908 to CL1910) was extracted from the culture, and the internal transcribed spacer region (ITS), chitin synthase (CHS-1), and glyceraldehydes-3-phosphate dehydrogenase gene (GAPDH) were amplified using universal primers ITS1/ITS4, CHS-79F/CHS-354R, and GDF/GDR and were sequenced (Weir et al. 2012). All three gene sequences from the three isolates shared 100% identity. These three gene sequences of isolate CL1909 were deposited in GenBank (accession nos. MN318339 for ITS, MN319581 for CHS-1, and MN319580 for GAPDH). A BLASTn search showed the ITS sequence had high identify (99 to 100%) with many Colletotrichum species; the CHS-1 and GAPDH sequences showed 100% identity with Colletotrichum scovillei strain CBS 126529. A multilocus phylogenetic analysis performed with the reference sequences (Weir et al. 2012) revealed that the isolate clustered within C. scovillei. For the pathogenicity test, a conidial suspension (1 × 106 spores/ml) of CL1909 isolate was prepared by harvesting conidia from 10-day-old cultures growing on PDA and was sprayed onto the healthy young shoots with tender leaves without wounding. All 12 young shoots inoculated were covered with plastic bags for 48 h to maintain high humidity and incubated at 28°C. Symptoms appeared after 5 days and were similar to those observed on the naturally infected plants. No symptoms were observed on the control leaves (inoculated with sterilized water in the same way). The fungus was reisolated from inoculated leaves, fulfilling Koch’s postulates, but not on controls. C. scovillei was reported as a pathogen causing diseases on mango (Qin et al. 2019), banana (Zhou et al. 2016), and pepper (Zhao et al. 2016) in China. This is the first report of C. scovillei causing anthracnose on wampee in China.The author(s) declare no conflict of interest.References:He, X. W., et al. 2019. Molecules 24:1394. https://doi.org/10.3390/molecules24071394 Crossref, Google ScholarQin, L. P., et al. 2019. Plant Dis. 103:1043. https://doi.org/10.1094/PDIS-11-18-1980-PDN Link, Google ScholarWeir, B. S., et al. 2012. Stud. Mycol. 73:115. https://doi.org/10.3114/sim0011 Crossref, ISI, Google ScholarZhao, W., et al. 2016. Plant Dis. 100:2168. https://doi.org/10.1094/PDIS-04-16-0443-PDN Link, Google ScholarZhou, Y., et al. 2016. Plant Dis. 101:381. https://doi.org/10.1094/PDIS-08-16-1135-PDN Link, Google ScholarThe author(s) declare no conflict of interest.Funding: This study was supported by the National Natural Science Foundation of China (nos. 31560495 and 31760499) and China Agriculture Research System (No. CARS-33-GW-BC1).DetailsFiguresLiterature CitedRelated Vol. 104, No. 5 May 2020SubscribeISSN:0191-2917e-ISSN:1943-7692 DownloadCaptionSymptoms observed in the field on zucchini plants caused by Fusarium solani f. sp. cucurbitae (A. Pérez-Hernández et al.). Photo credit: J. M. Gómez-Vázquez. Peach tree with excavated root collar (S. B. Miller et al.). Photo credit: G. Schnabel. Metrics Downloaded 1,070 times Article History Issue Date: 3 May 2020Published: 20 Feb 2020First Look: 20 Dec 2019Accepted: 18 Dec 2019 Page: 1557 Information© 2020 The American Phytopathological SocietyFundingNational Natural Science Foundation of ChinaGrant/Award Number: 31560495Grant/Award Number: 31760499China Agriculture Research SystemGrant/Award Number: CARS-33-GW-BC1KeywordsColletotrichum scovilleiClausena lansiumanthracnoseThe author(s) declare no conflict of interest." @default.
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- W2994788308 title "First Report of Anthracnose of <i>Clausena lansium</i> Caused by <i>Colletotrichum scovillei</i> in China" @default.
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