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- W2802090003 abstract "HomePlant DiseaseVol. 102, No. 10First Report of Bacterial Canker Caused by Pseudomonas syringae pv. morsprunorum Race 1 on Peach from Khyber Pakhtunkhwa Province of Pakistan PreviousNext DISEASE NOTES OPENOpen Access licenseFirst Report of Bacterial Canker Caused by Pseudomonas syringae pv. morsprunorum Race 1 on Peach from Khyber Pakhtunkhwa Province of PakistanR. Ahmed, M. Inam-ul-Haq, U. Shahzad, S. Hyder, S. Shahzaman, A. U. R. Khan, H. M. Aatif, A. Ahmad, and A. S. GondalR. Ahmed†Corresponding author: R. Ahmed; E-mail: E-mail Address: raees.agri@gmail.comhttp://orcid.org/0000-0002-9673-8610Search for more papers by this author, M. Inam-ul-HaqSearch for more papers by this author, U. ShahzadSearch for more papers by this author, S. Hyderhttp://orcid.org/0000-0002-6094-5650Search for more papers by this author, S. ShahzamanSearch for more papers by this author, A. U. R. KhanSearch for more papers by this author, H. M. AatifSearch for more papers by this author, A. Ahmadhttp://orcid.org/0000-0001-7789-8734Search for more papers by this author, and A. S. GondalSearch for more papers by this authorAffiliationsAuthors and Affiliations R. Ahmed † M. Inam-ul-Haq , Department of Plant Pathology, PMAS-Arid Agriculture University Rawalpindi, Pakistan U. Shahzad , Department of Horticulture, Agriculture College B. Z. U. Bahadur Campus, Layyah, Pakistan S. Hyder , Department of Plant Pathology, PMAS-Arid Agriculture University Rawalpindi, Pakistan S. Shahzaman , Department of Plant Pathology, University of Poonch Rawlakot, AJK, Pakistan A. U. R. Khan , Department of Plant Pathology, College of Agriculture, University of Sargodha H. M. Aatif , Department of Plant Pathology, College of Agriculture, Bahadur Campus, Bahauddin Zakariya University, Multan, Pakistan A. Ahmad A. S. Gondal , Department of Plant Pathology, PMAS-Arid Agriculture University Rawalpindi, Pakistan. Published Online:6 Aug 2018https://doi.org/10.1094/PDIS-10-17-1618-PDNAboutSections ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InRedditEmailWechat Peach (Prunus persica L.) fruit, which is rich in minerals, fiber, and vitamins, is a major fruit in Khyber Pakhtunkhwa (KPK) and northern areas of Pakistan. With an average production of 30,000 metric tons, it is cultivated on an area of 56,000 ha in KPK. During a survey of 29 peach orchards in the two consecutive growing seasons from 2014 to 2016, leaves and fruits with water-soaked brown necrotic lesions and stems with canker and gum execution were observed. Mean disease incidence was recorded as 49% on a cultivar locally known as 6 1/2. A total of 260 samples were collected in December and January (blooming stage) to May (fruiting stage). After isolation on nutrient agar medium, the formed bacterial colonies were streaked on King’s B medium to detect florescence under ultraviolet light. Cycloheximide at 50 mg/liter was added to the medium to prevent fungal growth. According to the LOPAT scheme, a total of 32 recovered isolates were gram negative; levan and tobacco hypersensitivity positive; and oxidase, potato soft rot, and arginine dihydrolase negative and were confirmed as Pseudomonas syringae. According to the GAATa scheme, gelatin and aesculin hydrolysis were negative, whereas tyrosinase and tartrate were positive, which confirmed 11 isolates were pathovar morsprunorum race 1 (Lelliott and Stead 1987). Further identification of P. syringae pv. morsprunorum race 1 was confirmed by polymerase chain reaction amplification of 16S rRNA and gyrB gene (Karlson et al. 1993; Yamamoto et al. 2000). Obtained sequences of 16S rRNA and gyrB gene (GenBank accession nos. KY364875 and MF401398, respectively) showed 96 to 99% genetic similarity with already reported P. syringae pv. morsprunorum race 1 sequences (GenBank accession nos. KF019104 and HG000214, respectively). Pathogenicity was tested by inoculating fresh peach fruits with bacterial suspension (108 CFU/ml) of these two strains together with a pathotype strain incubated at 27 ± 2°C. A set of healthy fruits inoculated with double-distilled water was used as a control (Kaluzna et al. 2012). Five to seven days after inoculation, water-soaked, brown lesions with yellow margins were observed on the fruits inoculated with bacterial strains. The pathogen was reisolated and confirmed P. syringae pv. morsprunorum race 1 using LOPAT and GATTa tests. To our knowledge, this is the first report of P. syringae pv. morsprunorum race 1 from KPK province of Pakistan, and the information will help in devising quarantine measures to limit the pathogen prevalence.References:Kaluzna, M., et al. 2012. J. Plant Pathol. 94:117. Google ScholarKarlson, U., et al. 1993. J. Bacteriol. 175:1467. https://doi.org/10.1128/jb.175.5.1467-1474.1993 Crossref, ISI, Google ScholarLelliott, R. A., and Stead, D. E. 1987. Methods for the Diagnosis of Bacterial Diseases of Plants. Blackwell Scientific Publications, Oxford, U.K. Google ScholarYamamoto, S., et al. 2000. Microbiology 146:2385. https://doi.org/10.1099/00221287-146-10-2385 Crossref, ISI, Google ScholarFunding: Funding was provided by Higher Education Commission, Pakistan (grant no. HEC-2268).DetailsFiguresLiterature CitedRelated Vol. 102, No. 10 October 2018SubscribeISSN:0191-2917e-ISSN:1943-7692 Metrics Article History Issue Date: 28 Sep 2018Published: 6 Aug 2018First Look: 18 Apr 2018Accepted: 17 Apr 2018 Pages: 2027-2027 Information© 2018 The American Phytopathological SocietyFundingHigher Education Commission, PakistanGrant/Award Number: HEC-2268Cited byIdentification of Host Resistance to Bacterial Canker Disease on Apricot, Plum and Peach Grown in Punjab and KPK, Pakistan30 April 2022 | International Journal of Phytopathology, Vol. 11, No. 1Pseudomonas syringae pv. morsprunorum (bacterial canker of stone fruits)CABI Compendium, Vol. CABI CompendiumCharacterization of Pseudomonas syringae pv. syringae from Diseased Stone Fruits in Kyrgyzstan and Testing of Biological Agents against Pathogen28 August 2020 | International Journal of Phytopathology, Vol. 9, No. 2Cherry picking by pseudomonads: After a century of research on canker, genomics provides insights into the evolution of pathogenicity towards stone fruits6 May 2020 | Plant Pathology, Vol. 69, No. 6" @default.
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- W2802090003 title "First Report of Bacterial Canker Caused by <i>Pseudomonas syringae pv. morsprunorum</i> Race 1 on Peach from Khyber Pakhtunkhwa Province of Pakistan" @default.
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