Ralstonia solanacearum – a New Threat to Potato Production in Serbia
Ralstonia solanacearum – nova pretnja proizvodnji krompira u Srbiji
Author
Milijasevic-Marcic, Svetlana
Todorovic, Biljana
Potočnik, Ivana
Rekanovic, Emil
Stepanovic, Milos
Mitrovic, Jelena
Duduk, Bojan
Keywords
Bacterial wiltBrown rot
Potato
Identification
PCR
Bakteriozno uvenuce
mrka trulež
krompir
identifikacija
Metadata
Show full item recordAbstract
A survey of ware potatoes (a total of 1127 samples) from localities in Serbia during two
consecutive years resulted in detection and identification of R. solanacearum in 17 tuber
samples. The monitoring detected the causal agent of bacterial wilt and brown rot of potato
in three districts of Vojvodina province. In 2011, the infection by R. solanacearum was confirmed
in 7 samples of ware potato tubers (varieties – Saturna, Pirol, Hermes, Panda) in West
Bačka and South Bačka Districts. In 2012, the infection by R. solanacearum was confirmed in
10 potato tuber samples (Lady Claire, Desiree, Panda, Red Fantasy and Vineta varieties) from
two districts: South Bačka and Central Banat. Bacterial strains obtained from positive samples
were identified as R. solanacearum biovar 2 using PCR/RFLP analysis, pathogenicity test
on tomato transplants, and nutritional, enzymatic and biovar determination tests. To our
best knowledge, these are the only findings of R. solanacearum infection in ware potatoes
in Serbia. R. solanacearum was not detected in tomato or any other host plant tested in this
study. Furthermore, the bacterium was not found in any of the water samples tested, including
those originating from areas in which the bacterium was found in ware potato samples. Pregledom merkantilnog krompira (ukupno 1127 uzoraka) iz lokaliteta u Srbiji tokom dve
uzastopne godine, R. solanacearum je detektovana i identifikovana u 17 uzoraka krtola krompira.
Rezultati su pokazali da je prouzrokovač mrke truleži krtola i bakteriozne uvelosti krompira
registrovan samo u 3 okruga u Vojvodini. Tokom 2011. godine, R. solanacearum je potvrđena
u 7 uzoraka krtola merkantilnog krompira (sorte: Saturna, Pirol, Hermes, Panda) u Zapadnobačkom
i Južnobačkom okrugu. Tokom 2012. godine, R. solanacearum je potvrđena u 10 uzoraka
krtola merkantilnog krompira (sorte: Lady Claire, Desiree, Panda, Red fantasy, Vineta) lociranih
u dva okruga: Južnobački i Srednjebanatski. Sojevi izolovane bakterije identifikovani su
kao R. solanacearum biovar 2 na osnovu PCR/RFLP analize, testa patogenosti na rasadu paradajza,
biohemijskih odlika bakterije i testova za određivanje biovara. Prema našim saznanjima,
ovo su jedini nalazi R. solanacearum u merkantilnom krompiru u Srbiji. Istraživanje je pokazalo
i da R. solanacearum nije detektovana u biljkama paradajza kao ni u drugim testiranim biljkama
domaćinima ove bakterije. Takođe, bakterija nije detektovana ni u jednom uzorku vode,
uključujući i one poreklom iz područja gde je bakterija nađena u uzorcima krtola krompira.