Bacterial Diseases of Pepper in Yugoslavia

Obradović, Aleksa; Mavridis, A.; Rudolph, K.; Arsenijević, M.; Mijatovic, M.

doi:10.1007/978-94-010-0003-1_59

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Bacterial spot, caused by Xanthomonas euvesicatoria (formerly X. campestris pv. vesicatoria group A, Jones et al, 2004 ; Obradović et al, 2004b ), is one of the most important pepper diseases in all pepper growing areas and in Serbia as well ( Balaž, 1994 ; Obradović et al, 2000 , 2001 ).…”

Section: Introductionmentioning

confidence: 99%

Complete Genome of the Xanthomonas euvesicatoria Specific Bacteriophage KΦ1, Its Survival and Potential in Control of Pepper Bacterial Spot

et al. 2018

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Xanthomonas euvesicatoria phage KΦ1, a member of Myoviridae family, was isolated from the rhizosphere of pepper plants showing symptoms of bacterial spot. The phage strain expressed antibacterial activity to all X. euvesicatoria strains tested and did not lyse other Xanthomonas spp., nor other less related bacterial species. The genome of KΦ1 is double-stranded DNA of 46.077 bp including 66 open reading frames and an average GC content of 62.9%, representing the first complete genome sequence published for a phage infecting xanthomonads associated with pepper or tomato. The highest genome similarity was observed between phage KΦ1 and the Xanthomonas oryzae pv. oryzae specific phage OP2. On the other hand, when compared with other members of the genus Bcep78virus, the genome similarity was lower. Forty-four (67%) predicted KΦ1 proteins shared homology with Xanthomonas phage OP2, while 20 genes (30%) were unique to KΦ1. Phage KΦ1, which is chloroform resistant and stable in different media and in the pH range 5-11, showed a high titer storage ability for at least 2 years at +4°C. Copper-hydroxide and copper-oxychloride reduced phage activity proportionally to the used concentrations and the exposure time. UV light was detrimental to the phage strain, but skim milk plus sucrose formulation extended its survival in vitro. The phages survived for at least 7 days on the surface of pepper leaves in the greenhouse, showing the ability to persist on the plant tissue without the presence of the host bacterium. Results of three repeated experiments showed that foliar applications of the unformulated KΦ1 phage suspension effectively controlled pepper bacterial spot compared to the standard treatment and the untreated control. The integration of the phage KΦ1 and copper-hydroxide treatments resulted in an increased efficacy compared to the copper-hydroxide alone.

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Section: Introductionmentioning

confidence: 99%

Complete Genome of the Xanthomonas euvesicatoria Specific Bacteriophage KΦ1, Its Survival and Potential in Control of Pepper Bacterial Spot

et al. 2018

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“…Xanthomonas perforans, a related species causing bacterial spot of tomato, has not been reported as a pepper pathogen. Bacterial spot, caused by X. euvesicatoria has been a major limiting factor of pepper production in Serbia, due to endemic nature of the pathogen, favourable climatic conditions, M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 questionable seed quality and limited control practices (Obradović et al, 1999;.…”

Section: Introductionmentioning

confidence: 99%

Integration of biological and conventional treatments in control of pepper bacterial spot

et al. 2019

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Bacterial spot caused by Xanthomonas euvesicatoria is one of the most devastating pepper diseases in Serbia. Questionable seed quality, climatic conditions, and frequent irrigation during summer favour the disease occurrence and spread. The available management practices do not provide adequate disease control. Therefore, development of alternative and more sustainable disease management strategies is needed. Integration of classical and biological treatments could be an effective, environmentally safe option for reducing pepper bacterial spot severity. In order to develop an efficient integrated disease management program, we studied efficacy of biocontrol agents (bacteriophage strain KФ1 and two strains of Bacillus subtilis AAac and QST 713), systemic acquired resistance (SAR) inducer

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Sudden Appearance of the Tomato Race of Xanthomonas campestris pv. vesicatoria in Yugoslavia

Obradović

Mavridis

Rudolph

et al. 2001

Plant Pathogenic Bacteria

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Bacterial Diseases of Pepper in Yugoslavia

Cited by 5 publications

References 3 publications

Complete Genome of the Xanthomonas euvesicatoria Specific Bacteriophage KΦ1, Its Survival and Potential in Control of Pepper Bacterial Spot

Complete Genome of the Xanthomonas euvesicatoria Specific Bacteriophage KΦ1, Its Survival and Potential in Control of Pepper Bacterial Spot

Integration of biological and conventional treatments in control of pepper bacterial spot

Sudden Appearance of the Tomato Race of Xanthomonas campestris pv. vesicatoria in Yugoslavia

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