Pathotypic variation ofXanthomonas oryzaepv.oryzaein Bangladesh
| Autor: | M. A. I. Khan, Md. Rashidul Islam, Md. Samiul Alam, Md. Rejwan Bhuiyan, Ismail Hossain |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Veterinary medicine biology food and beverages Virulence biology.organism_classification 01 natural sciences 03 medical and health sciences 030104 developmental biology Xanthomonas oryzae Agronomy Xanthomonas oryzae pv. oryzae Bacterial blight Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Archives of Phytopathology and Plant Protection. 49:31-42 |
| ISSN: | 1477-2906 0323-5408 |
| Popis: | Bacterial Blight (BB) caused by Xanthomonas oryzae pv. oryzae (Xoo), a destructive disease of rice. Altogether, 96 isolates of Xoo were collected from 19 rice growing districts of Bangladesh in irrigated and rainfed seasons during 2014 to assess pathotypic variation. Pathotypic analyses on a set of 12 Near Isogenic Lines (NILs) of rice containing resistance genes viz. Xa1, Xa2, Xa3, Xa4, Xa5, Xa7, Xa8, Xa10, Xa11, Xa13, Xa14 and Xa21 and two check varieties IR24 and TN1 by leaf clip-inoculation technique. A total of 24 pathotypes were identified based on their virulence patterns on NILs tested. Among these, pathotypes VII, XII, and XIV considered as major, containing maximum number of isolates, (9.38% each) frequently distributed in North to Mid-Eastern districts of Bangladesh. Most virulent pathotype I recorded from Habiganj and Brahmanbaria. This pathotypic variation explained the pathogenic relatedness of X. oryzae pv. oryzae populations from diverse geographic areas in Bangladesh. |
| Databáze: | OpenAIRE |
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