Abstract
A study was carried out to test direct and indirect antagonistic effect against Fusarium wilt, caused by Fusarium oxysporum f. sp. ciceri (FOC), and plant growth-promoting (PGP) traits of bacteria isolated from rhizosphere soils of chickpea (Cicer arietinum L.). A total of 40 bacterial isolates were tested for their antagonistic activity against FOC and of which 10 were found to have strong antagonistic potential. These were found to be Streptomyces spp. (five isolates) and Bacillus spp. (five isolates) in the morphological and biochemical characterisation and 16S rDNA analysis. Under both greenhouse and wilt sick field conditions, the selected Streptomyces and Bacillus isolates reduced disease incidence and delayed expression of symptoms of disease, over the non-inoculated control. The PGP ability of the isolates such as nodule number, nodule weight, shoot weight, root weight, grain yield and stover yield were also demonstrated under greenhouse and field conditions over the non-inoculated control. Among the ten isolates, Streptomyces sp. AC-19 and Bacillus sp. BS-20 were found to have more potential for biocontrol of FOC and PGP in chickpea. This investigation indicates that the selected Streptomyces and Bacillus isolates have the potential to control Fusarium wilt disease and to promote plant growth in chickpea.
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Claims 8
Claim · model-written summary
Ten of forty bacterial isolates strongly antagonized FOC.
- Taxon
- chickpea
Cicer arietinume1 - Interactor
- Fusarium oxysporum f. sp. ciceri
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume2pathogen - Outcome
- antagonistic activity against FOCe0
- Value
- 10e0
- Qualifier
- 40 bacterial isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“A total of 40 bacterial isolates were tested for their antagonistic activity against FOC and of which 10 were found to have strong antagonistic potential”
e1“chickpea (Cicer arietinum L.)”
e2“Fusarium oxysporum f. sp. ciceri (FOC)”
Claim · model-written summary
Five antagonistic isolates were identified as Streptomyces species.
- Taxon
- chickpeaCicer arietinume1
- Interactor
- Streptomyces spp.
Streptomycese0biocontrol_agent - Outcome
- Streptomyces spp.e0
- Value
- five isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These were found to be Streptomyces spp. (five isolates) and Bacillus spp. (five isolates)”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Five antagonistic isolates were identified as Bacillus species.
- Taxon
- chickpeaCicer arietinume1
- Interactor
- Bacillus spp.e0biocontrol_agent
- Outcome
- Bacillus spp.e0
- Value
- five isolatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These were found to be Streptomyces spp. (five isolates) and Bacillus spp. (five isolates)”
e1“chickpea (Cicer arietinum L.)”
Claim · model-written summary
Selected Streptomyces isolates reduced chickpea wilt incidence and delayed symptoms versus non-inoculated controls.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- selected Streptomycese0
- Interactor
- Fusarium oxysporum f. sp. ciceriFusarium oxysporume2pathogen
- Second interactor
- StreptomycesStreptomycese0biocontrol_agent
- Outcome
- disease incidence and delayed expression of symptoms of diseasee0
- Direction
- reducede0
- Comparator
- non-inoculated controle0
- Setting
- greenhouse and wilt sick field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under both greenhouse and wilt sick field conditions, the selected Streptomyces and Bacillus isolates reduced disease incidence and delayed expression of symptoms of disease, over the non-inoculated control”
e1“chickpea (Cicer arietinum L.)”
e2“Fusarium oxysporum f. sp. ciceri (FOC)”
Claim · model-written summary
Selected Bacillus isolates reduced chickpea wilt incidence and delayed symptoms versus non-inoculated controls.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- Bacillus isolatese0
- Interactor
- Fusarium oxysporum f. sp. ciceriFusarium oxysporume2pathogen
- Second interactor
- Bacilluse0biocontrol_agent
- Outcome
- disease incidence and delayed expression of symptoms of diseasee0
- Direction
- reducede0
- Comparator
- non-inoculated controle0
- Setting
- greenhouse and wilt sick field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under both greenhouse and wilt sick field conditions, the selected Streptomyces and Bacillus isolates reduced disease incidence and delayed expression of symptoms of disease, over the non-inoculated control”
e1“chickpea (Cicer arietinum L.)”
e2“Fusarium oxysporum f. sp. ciceri (FOC)”
Claim · model-written summary
Streptomyces and Bacillus isolates improved chickpea nodulation, biomass and yield versus controls.
- Taxon
- chickpeaCicer arietinume1
- Treatment
- selected Streptomyces and Bacillus isolatese2
- Outcome
- nodule number, nodule weight, shoot weighte0
- Comparator
- non-inoculated controle0
- Setting
- greenhouse and field conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PGP ability of the isolates such as nodule number, nodule weight, shoot weight, root weight, grain yield and stover yield were also demonstrated under greenhouse and field conditions over the non-inoculated control”
e1“chickpea (Cicer arietinum L.)”
e2“Under both greenhouse and wilt sick field conditions, the selected Streptomyces and Bacillus isolates”
Claim · model-written summary
Streptomyces sp. AC-19 was identified as having greater biocontrol and plant growth promotion potential.
- Taxon
- chickpeaCicer arietinume0
- Interactor
- Streptomyces sp. AC-19e0biocontrol_agent
- Outcome
- potential for biocontrol of FOC and PGPe0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces sp. AC-19 and Bacillus sp. BS-20 were found to have more potential for biocontrol of FOC and PGP in chickpea”
Claim · model-written summary
Bacillus sp. BS-20 was identified as having greater biocontrol and plant growth promotion potential.
- Taxon
- chickpeaCicer arietinume0
- Interactor
- Bacillus sp. BS-20e0biocontrol_agent
- Outcome
- potential for biocontrol of FOC and PGPe0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces sp. AC-19 and Bacillus sp. BS-20 were found to have more potential for biocontrol of FOC and PGP in chickpea”
The same questions in other papers
Streptomyces · symbiosis · Cicer arietinum (chickpea)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.