Abstract
Wheat sharp eye-spot,caused by Rhizoctonia cerealis,is an important soil-borne wheat disease in the middle and lower valley of Yangtze River.It is important to determine the category of wheat rhizosphere bacteria,characterize their biological control mechanism and effects on wheat sharp eye-spot.Bacterial strains A6,A12,B37,B40,B41 and B42 were isolated from wheat rhizosphere in Jiangyan city of Jiangsu province.These strains were determined as Pseudomonas fluorescens by analysis of their 16S rDNA sequences,physiological and chemical characters.In greenhouse,all the 6 bacterial strains decreased wheat sharp eye-spot disease index,the control efficiency of strain B42 reached to 71.67%.The analysis of secondary metabolite indicated that all the 6 strains produced neither 2,4-diacetylphloroglucinol nor phenazine.Pyrrolnitrin production related gene PrnD was found in the strain A12,B37 and B42.In strain B37,another Pyrrolnitrin production related gene PrnC was also detected.A12,B37and B42 produced siderophore,A12,B40,B41 and B42 produced proteinase,and none of the strains produced chitinase.
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Claims 9
Claim · model-written summary
Six wheat rhizosphere isolates were identified as Pseudomonas fluorescens.
- Taxon
- wheat
Triticum aestivume0 - Interactor
- Pseudomonas fluorescens
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Pseudomonas fluorescense0biocontrol_agent - Outcome
- Pseudomonas fluorescense0
- Setting
- Jiangyan city of Jiangsu provincee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“Bacterial strains A6,A12,B37,B40,B41 and B42 were isolated from wheat rhizosphere in Jiangyan city of Jiangsu province.These strains were determined as Pseudomonas fluorescens”
Claim · model-written summary
All six bacterial strains decreased wheat sharp eye-spot disease index in a greenhouse.
- Taxon
- wheatTriticum aestivume0
- Treatment
- all the 6 bacterial strainse0
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescense1biocontrol_agent
- Outcome
- wheat sharp eye-spot disease indexe0
- Direction
- decreasede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse,all the 6 bacterial strains decreased wheat sharp eye-spot disease index”
e1“These strains were determined as Pseudomonas fluorescens”
Claim · model-written summary
Strain B42 reached 71.67% control efficiency against wheat sharp eye-spot.
- Taxon
- wheatTriticum aestivume1
- Material
- strain B42e0
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescense2biocontrol_agent
- Outcome
- control efficiencye0
- Value
- 71.67%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the control efficiency of strain B42 reached to 71.67%”
e1“wheat sharp eye-spot disease index”
e2“These strains were determined as Pseudomonas fluorescens”
Claim · model-written summary
None of the six strains produced 2,4-diacetylphloroglucinol or phenazine.
- Taxon
- wheatTriticum aestivume1
- Outcome
- produced neither 2,4-diacetylphloroglucinol nor phenazinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the 6 strains produced neither 2,4-diacetylphloroglucinol nor phenazine”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
Claim · model-written summary
PrnD was detected in strains A12, B37 and B42.
- Taxon
- wheatTriticum aestivume1
- Material
- strain A12,B37 and B42e0
- Gene
- PrnDe0
- Outcome
- was founde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pyrrolnitrin production related gene PrnD was found in the strain A12,B37 and B42”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
Claim · model-written summary
PrnC was detected in strain B37.
- Taxon
- wheatTriticum aestivume1
- Material
- strain B37e0
- Gene
- PrnCe0
- Outcome
- was also detectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In strain B37,another Pyrrolnitrin production related gene PrnC was also detected”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
Claim · model-written summary
Strains A12, B37 and B42 produced siderophore.
- Taxon
- wheatTriticum aestivume1
- Material
- A12,B37and B42e0
- Outcome
- produced siderophoree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A12,B37and B42 produced siderophore”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
Claim · model-written summary
Strains A12, B40, B41 and B42 produced proteinase.
- Taxon
- wheatTriticum aestivume1
- Material
- A12,B40,B41 and B42e0
- Outcome
- produced proteinasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A12,B40,B41 and B42 produced proteinase”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
Claim · model-written summary
None of the bacterial strains produced chitinase.
- Taxon
- wheatTriticum aestivume1
- Outcome
- produced chitinasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“none of the strains produced chitinase”
e1“isolated from wheat rhizosphere in Jiangyan city of Jiangsu province”
The same questions in other papers
inoculation · Pseudomonas fluorescens · Triticum aestivum (wheat)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →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.