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Title: GENETIC DIVERSITY AMONG BACTERIA ASSOCIATED WITH BROWN ROT OF POTATO IN RUSSIAN FEDERATION

Author
item MATVEEVA, E - RUSSIAN RES. INST. OF PHY
item NIKOLAEVA, E - RUSSIAN RES. INST. OF PHY
item PEKHTEREVA, E - RUSSIAN RES. INST. OF PHY
item BOBROVA, V - RUSSIAN RES. INST. OF PHY
item MILYUTINA, I - MOSCOW STATE UNIV.
item TROITSKY, A - MOSCOW STATE UNIV.
item IGNATOV, A - MOSCOW STATE UNIV.
item 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.