Abstract
Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria of molecular plant pathology in the world, has the largest range of hosts among plant pathogenic bacteria, and limits production and leads to economic losses in agriculture. The distinctive feature of the causal agent from other bacteria is the Ti plasmid, the extrachromosomal structure present in all virulent types. In this study, virulence of five R. radiobacter isolates (1A, 1B, 2A, 2B and RK 473) isolated from different rootstocks was tested in carrot slices, squash fruits, kalanchoe leaves, tomato and sunflower seedlings, and GF677, M9 and MM106 rootstocks, and hypersensitive response tests were conducted in tobacco plant. The isolates were diagnosed with biochemical and physiological tests by classical methods. All isolates formed tumors in carrot slices and squash fruits. 1A, 1B, 2A and 2B isolates formed tumors in the stem of GF677 peach rootstock, while it did not form any tumors on the stems of M9 and MM106 rootstocks. Tumor formation was observed in 1B isolate in the root application of GF677 peach rootstock, while no tumor formation was observed in other isolates. RK 473 isolate became pathogenic in M9 and MM106 apple rootstocks, while it was observed that the other isolates did not form any tumors. It was seen that none of the isolates became pathogenic in tomato and sunflower root and stem, and kalanchoe leaf applications. According to the virulence test results, 1B isolate was found out to be the most virulent isolate. Biochemical and physiological tests revealed the differences between isolates.
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Claims 7
Claim · model-written summary
All R. radiobacter isolates formed tumors in carrot slices and squash fruits
- Taxon
- carrot slices and squash fruitse1
- Interactor
- Rhizobium radiobacter
Agrobacterium radiobactere0pathogen - Outcome
- formed tumorse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“All isolates formed tumors in carrot slices and squash fruits”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
Isolates 1A, 1B, 2A and 2B formed tumors in the stem of GF677 peach rootstock
- Taxon
- peach
Prunus persicae2 - Material
- GF677 peach rootstocke2
- Organ / stage
- steme2
- Interactor
- Rhizobium radiobacterAgrobacterium radiobactere0pathogen
- Outcome
- formed tumorse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“1A, 1B, 2A and 2B isolates formed tumors in the stem of GF677 peach rootstock, while it did not form any tumors on the stems of M9 and MM106 rootstocks”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
Isolate 1B formed tumors after root application to GF677 peach rootstock
- Taxon
- peachPrunus persicae3
- Material
- GF677 peach rootstocke3
- Treatment
- root applicatione3
- Interactor
- Rhizobium radiobacterAgrobacterium radiobactere0pathogen
- Outcome
- Tumor formatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Tumor formation was observed in 1B isolate in the root application of GF677 peach rootstock, while no tumor formation was observed in other isolates”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
Isolate RK 473 became pathogenic on M9 and MM106 apple rootstocks
- Taxon
- apple
Malus domesticae4 - Material
- M9 and MM106e4
- Interactor
- RK 473e4pathogen
- Outcome
- became pathogenice4
- Qualifier
- the other isolates did not form any tumorse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“RK 473 isolate became pathogenic in M9 and MM106 apple rootstocks, while it was observed that the other isolates did not form any tumors”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
None of the isolates became pathogenic on tomato and sunflower roots and stems or kalanchoe leaves
- Taxon
- tomato and sunflower
Solanum lycopersicum
Helianthus annuuse5 - Interactor
- Rhizobium radiobacterAgrobacterium radiobactere0pathogen
- Outcome
- became pathogenice5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“none of the isolates became pathogenic in tomato and sunflower root and stem, and kalanchoe leaf applications”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
Isolate 1B was the most virulent isolate in the virulence tests
- Taxon
- rootstockse2
- Material
- 1B isolatee6
- Interactor
- Rhizobium radiobacterAgrobacterium radiobactere0pathogen
- Outcome
- most virulente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“1B isolate was found out to be the most virulent isolate”
e2“1A, 1B, 2A and 2B isolates formed tumors in the stem of GF677 peach rootstock, while it did not form any tumors on the stems of M9 and MM106 rootstocks”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”
Claim · model-written summary
Biochemical and physiological tests revealed differences between R. radiobacter isolates
- Taxon
- Rhizobium radiobacterAgrobacterium radiobactere0
- Outcome
- differences between isolatese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Biochemical and physiological tests revealed the differences between isolates”
e0“Rhizobium radiobacter is a significant causal agent that ranks among the top ten bacteria”