Abstract
Native isolates of groundnut stem rot causal organism, SclerotiumrolfsiiSacc.were collected from major groundnut growing areas of Tamil Nadu.Selected isolates were screened, characterized and identi ied the virulent isolates.Several native bacterial and fungal antagonists were isolated against SclerotiumrolfsiiSacc.Two antagonistic actinomycetes isolates were found to have antagonistic effects the groundnut stem rot pathogen.Morphology and spore structure of isolated antagonists were studied under light microscopy, Biochemical test, Thin layer chromatography.and Biolog analysis.It con irmed the group of microorganisms as Streptomyces.The genus and species level of the antagonists were identi ied by Fatty Acids Methyl Esters (FAME) Analysis.The antagonistic activities of S. violaceusniger were found to be effective in reducing the mycelial growth, sclerotial formation, and sclerotial germination.When antagonists were combined together in various combinations with each other in pot experiments the -1 treatment containing, seed treatment of P. luorescens@ 5g kg +S.violaceusniger @ 5 g/kg was found to be effective in reducing the disease by 81.84 per cent over control followed by the seed treatment of S. violaceusniger @10 g/kg (75.06 per cent).This study provides a theoretical and practical explanation of an antagonist explored for control of stem rot caused by S. rolfsii.
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Claims 6
Claim · model-written summary
Two actinomycete isolates antagonized the groundnut stem rot pathogen.
- Taxon
- groundnut
Arachis hypogaeae0 - Interactor
- groundnut stem rot pathogene0pathogen
- Outcome
- antagonistic effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two antagonistic actinomycetes isolates were found to have antagonistic effects the groundnut stem rot pathogen.”
Claim · model-written summary
The antagonists were identified as Streptomyces.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- Streptomycese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It con irmed the group of microorganisms as Streptomyces.”
t0“Streptomyces is a Potential biocontrol agent for the management of Groundnut stem rot Pathogen Sclerotiumrolfsii”
Claim · model-written summary
S. violaceusniger reduced pathogen mycelial growth.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- S. violaceusnigere0
- Interactor
- Sclerotiumrolfsiit0pathogen
- Second interactor
- S. violaceusnigerStreptomyces violaceusnigere0biocontrol_agent
- Outcome
- mycelial growthe0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antagonistic activities of S. violaceusniger were found to be effective in reducing the mycelial growth, sclerotial formation, and sclerotial germination.”
t0“Streptomyces is a Potential biocontrol agent for the management of Groundnut stem rot Pathogen Sclerotiumrolfsii”
Claim · model-written summary
S. violaceusniger reduced pathogen sclerotial formation and germination.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- S. violaceusnigere0
- Interactor
- Sclerotiumrolfsiit0pathogen
- Outcome
- sclerotial formation, and sclerotial germinatione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antagonistic activities of S. violaceusniger were found to be effective in reducing the mycelial growth, sclerotial formation, and sclerotial germination.”
t0“Streptomyces is a Potential biocontrol agent for the management of Groundnut stem rot Pathogen Sclerotiumrolfsii”
Claim · model-written summary
Combined seed treatments reduced groundnut stem rot by 81.84 per cent over control.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- seed treatment of P. luorescens@ 5g kg +S.violaceusniger @ 5 g/kge0
- Interactor
- Sclerotiumrolfsiit0pathogen
- Second interactor
- S.violaceusnigerStreptomyces violaceusnigere0biocontrol_agent
- Outcome
- diseasee0
- Direction
- reducinge0
- Value
- 81.84 per cente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment of P. luorescens@ 5g kg +S.violaceusniger @ 5 g/kg was found to be effective in reducing the disease by 81.84 per cent over control”
t0“Streptomyces is a Potential biocontrol agent for the management of Groundnut stem rot Pathogen Sclerotiumrolfsii”
Claim · model-written summary
S. violaceusniger seed treatment reduced disease by 75.06 per cent.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- seed treatment of S. violaceusniger @10 g/kge0
- Interactor
- Sclerotiumrolfsiit0pathogen
- Outcome
- stem rott0
- Value
- 75.06 per cente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed treatment of S. violaceusniger @10 g/kg (75.06 per cent)”
t0“Streptomyces is a Potential biocontrol agent for the management of Groundnut stem rot Pathogen Sclerotiumrolfsii”
The same questions in other papers
Streptomyces violaceusniger · disease · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
seed treatment · disease · Arachis hypogaea (peanut)Positive and negative results
40 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
40 papers more in this group
See all 44 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.