Pathogen Identification of Processing Chili Pepper Root Rot Disease in Xinjiang(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Pathogen Identification of Processing Chili Pepper Root Rot Disease in Xinjiang

Author(s):: FANG Xiaocui; QU Heli; ZHAO Sifeng; GUO Kaifa; MA Ming; (College of Agriculture，Shihezi University/Key Laboratory at the Universities of Xinjiang Uygur Autonomous Region for Oasis Agricultural Pest Management and Plant Protection Resource Utilization，Shihezi,Xinjiang 832003)

Keywords:: Xinjiang; processing chili pepper; root rot disease; Fusarium oxysporum; Fusarium solani

Abstract:: To isolate and identify pathogen of processing chili pepper root rot disease in Xinjiang.A total of 211 samples were collected from different main production areas in Xinjiang.The pathogens which caused root rot of processing chili pepper were isolated and Fusarium isolates were identified according to the morphological features of culture and 18S rDNA-ITS,EF-1α,β-tubulin gene sequences analysised of representative strains.The results showed that 211 samples of root rot diseased chili pepper plant were collected and 161 isolates were obtained.121 of these，75.16% of the total isolates，belonged to Fusarium which were the main pathogen for root rot of processing chili pepper in Xinjiang.80 isolates with pathogenicity were identified to class into two different species，e.g.Fusarium oxysporum and Fusarium solani.Fusarium oxysporum were 57 strains，accounted for 47.11%，Fusarium solani were 23 strains，accounted for 19.01%.

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Last Update: 2016-08-29