Abstract
Rhizobium leguminosarum bv. phaseoli was evaluated for its capacity to trigger resistance to common bacterial blight (CBB) of common bean caused by Xanthomonas axonopodis pv. phaseoli (Xap), under greenhouse and field conditions. A common bean cultivar and three lines including two tolerant lines (Ks51103 and BF13607) and the susceptible cultivar Khomein and line Ks21479, were used. R. leguminosarum bv. phaseoli, was applied as a seed treatment and its effect on disease severity (DS) was compared with untreated (control) plants and with urea fertilizer treated plants in both the greenhouse and the feld. R. leguminosarum bv. phaseoli in common bean roots tended to reduce CBB severity and to improve plant growth, particularly the 100-seed weight, in the field. The greatest decrease in CBB in the greenhouse occurred 15 days after inoculation (DAI) of Xap in the cultivar Khomein and line Ks21479, and 30 DAI in lines Ks51103 and BF13607. In the field, however, the greatest decrease occurred 35 DAI in the cultivar and all lines. Furthermore, in the field the greatest improvement in 100-seed weight occurred in the cultivar Khomein treated with R. leguminosarum bv. phaseoli. The potential of using R. leguminosarum bv. phaseoli in the management of CBB and the possible mechanisms that induce resistance in this symbiotic system are discussed.
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Claims 8
Claim · model-written summary
Rhizobium seed treatment tended to reduce common bacterial blight severity in field bean.
- Taxon
- common bean
Phaseolus vulgarise0 - Treatment
- R. leguminosarum bv. phaseolie0
- Interactor
- Xanthomonas axonopodis pv. phaseoliXanthomonas phaseoli pv. phaseolit0pathogen
- Second interactor
- R. leguminosarum bv. phaseoli
Rhizobium leguminosarume0symbiont - Outcome
- CBB severitye0
- Direction
- reducee0
- Setting
- in the fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. leguminosarum bv. phaseoli in common bean roots tended to reduce CBB severity and to improve plant growth, particularly the 100-seed weight, in the field.”
t0“caused by Xanthomonas axonopodis pv. phaseoli (Xap)”
Claim · model-written summary
Rhizobium treatment tended to improve field plant growth and 100-seed weight.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- R. leguminosarum bv. phaseolie0
- Interactor
- R. leguminosarum bv. phaseoliRhizobium leguminosarume0symbiont
- Outcome
- plant growth, particularly the 100-seed weighte0
- Direction
- improvee0
- Setting
- in the fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. leguminosarum bv. phaseoli in common bean roots tended to reduce CBB severity and to improve plant growth, particularly the 100-seed weight, in the field.”
Claim · model-written summary
The greatest greenhouse CBB decrease occurred at 15 days after pathogen inoculation in Khomein.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Khomeine0
- Interactor
- Xape0pathogen
- Outcome
- decrease in CBBe0
- Direction
- greateste0
- Value
- 15 dayse0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest decrease in CBB in the greenhouse occurred 15 days after inoculation (DAI) of Xap in the cultivar Khomein”
t0“Common Bean”
Claim · model-written summary
The greatest greenhouse CBB decrease occurred at 15 days after pathogen inoculation in Ks21479.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Ks21479e0
- Interactor
- Xape0pathogen
- Outcome
- decrease in CBBe0
- Direction
- greateste0
- Value
- 15 dayse0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest decrease in CBB in the greenhouse occurred 15 days after inoculation (DAI) of Xap in the cultivar Khomein and line Ks21479”
t0“Common Bean”
Claim · model-written summary
The greatest greenhouse CBB decrease occurred at 30 days after pathogen inoculation in Ks51103.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest decrease in CBB in the greenhouse occurred 15 days after inoculation (DAI) of Xap in the cultivar Khomein and line Ks21479, and 30 DAI in lines Ks51103 and BF13607.”
t0“Common Bean”
Claim · model-written summary
The greatest greenhouse CBB decrease occurred at 30 days after pathogen inoculation in BF13607.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest decrease in CBB in the greenhouse occurred 15 days after inoculation (DAI) of Xap in the cultivar Khomein and line Ks21479, and 30 DAI in lines Ks51103 and BF13607.”
t0“Common Bean”
Claim · model-written summary
In the field, the greatest CBB decrease occurred at 35 days after inoculation in the cultivar and all lines.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- decreasee0
- Direction
- greateste0
- Value
- 35 DAIe0
- Setting
- In the fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the field, however, the greatest decrease occurred 35 DAI in the cultivar and all lines.”
t0“Common Bean”
Claim · model-written summary
Field 100-seed weight improved most in Rhizobium-treated Khomein.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- Khomeine0
- Treatment
- R. leguminosarum bv. phaseolie0
- Interactor
- R. leguminosarum bv. phaseoliRhizobium leguminosarume0symbiont
- Outcome
- 100-seed weighte0
- Direction
- improvemente0
- Setting
- in the fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the field the greatest improvement in 100-seed weight occurred in the cultivar Khomein treated with R. leguminosarum bv. phaseoli.”
t0“Common Bean”
The same questions in other papers
Rhizobium leguminosarum · yield · Phaseolus vulgaris (common bean)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.