Author
MATVEEVA, E - RUSSIAN RES. INST. OF PHY | |
NIKOLAEVA, E - RUSSIAN RES. INST. OF PHY | |
PEKHTEREVA, E - RUSSIAN RES. INST. OF PHY | |
BOBROVA, V - RUSSIAN RES. INST. OF PHY | |
MILYUTINA, I - MOSCOW STATE UNIV. | |
TROITSKY, A - MOSCOW STATE UNIV. | |
IGNATOV, A - MOSCOW STATE UNIV. | |
Schaad, Norman |
Submitted to: Phytopathology
Publication Type: Abstract Only Publication Acceptance Date: 6/17/2004 Publication Date: 6/29/2004 Citation: Phytopathology 94:S67 Interpretive Summary: Technical Abstract: Within the Russian Federation (RF) there is an abundance of flora types and climates; however, little is known about the diversity of phytopathogenic bacteria associated with that flora. Brown rot of potato (BR), caused by Ralstonia solanacearum (Rs), has emerged as a major problem in RF. To identify Rs and other bacteria associated with BR, more than 100 different bacteria were isolated from diseased tubers collected from different regions of RF in 2003. Most had high GC contents and similar plasmids. Partial sequencing of the 16s rRNA gene of 14 strains showed 78% were Gram-negative alfa-(Agrobacterium/Rhizobium spp.), beta-(Ralstonia/Alcaligenes spp.) and gamma-(Pseudomonas/Stenotrophamonas spp.) proteobacteria. RFLP and AP- and rep-PCR fingerprinting showed that each group consisted of diverse strains. Several RS strains from regions of the RF were identified biochemically as Rs biovar 2. |