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Fariba Ghaderi, Seyed Ali Asghar Hashemi,
Volume 11, Issue 2 (9-2022)
Abstract

Ghaderi F, Hasehemi SAA (2022) Phytophthora citricola as the causal agent of persimmon root rot in Fars province of Iran. Plant Pathology Science 11(2): 1-10.   Doi: 10.2982/PPS.11.2.1
 
Introduction: Phytophthora species are a serious threat to plant products worldwide. Therefore, identifying them is the first step in finding a way to treat the disease. The aim of this study was to identify Phytophthora species causing root and crown rot of persimmon trees in Fars province. Materials and methods: Samples were taken from the crowns and roots of diseased persimmon trees, in the summer of 2018-2019. Infected root and crown tissues were cultured in CMA-PARPH medium. Isolates of Phytophthora species were purified by single spore method and morphological and molecular characteristics were used to identify them. Results: Six isolates were obtained from the roots of diseased persimmon trees and identified as Phytophthora citricola based on their morphological characteristics. Phylogenetic studies based on beta-tubulin (βtub) and 28S rDNA genes showed that all isolates (Iran-Pc1 to Iran-Pc6) were grouped into clade 2 with a validation scale of 100 and confirmed the identification of P .citricola. Conclusion: This is a new report of persimmon root and crown rot caused by Phytophthora citricola in Fars Province.
Keywords: Beta-tubulin, Gene, Persimmon, Phytophthora, 28S rDNA
 


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