Abstract
Three endophytic actinomycetes strains recovered from surface sterilized root tissues of Azadirachta indica A. Juss. (Meliaceae), plants were selected through tests for their potential as bio-control and plant growth promoting agents. It was also observed that the seed treated with the spore suspension of three selected strains of Streptomyces, significantly promoted plant growth and antagonized the growth of Alternaria alternata, causal agent of early blight disease in tomato plant. It was observed that the three selected strains prolifically produce IAA and siderophores that play vital role in promotion of plant growth and in suppression of Alternaria alternata. Interestingly, Streptomyces strain AzR-051 produced the highest amount of IAA at 13.73 μmol ml(-1) , compared to strains AzR-049 and AzR-010 9.22 μmol ml(-1) and 10.43 μmol ml(-1) respectively. It also produces siderophores higher than the other two strains. Thus these endophytic isolates have the potential as plant growth promoters as well as a bio-control agent, which is a useful trait for crop production in nutrient deficient soils.
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Claims 6
Claim · model-written summary
Seed treatment with three Streptomyces strains significantly promoted plant growth.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- seed treated with the spore suspension of three selected strains of Streptomycese0
- Interactor
- Streptomyces
Streptomycese0symbiont - Outcome
- plant growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed treated with the spore suspension of three selected strains of Streptomyces, significantly promoted plant growth”
e1“tomato plant”
Claim · model-written summary
Seed treatment with the selected Streptomyces strains antagonized Alternaria alternata in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- seed treated with the spore suspension of three selected strains of Streptomycese0
- Interactor
- Alternaria alternata
.jpg?width=60)
Alternaria alternatae0pathogen - Second interactor
- StreptomycesStreptomycese0biocontrol_agent
- Outcome
- growth of Alternaria alternatae0
- Direction
- antagonizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the seed treated with the spore suspension of three selected strains of Streptomyces, significantly promoted plant growth and antagonized the growth of Alternaria alternata, causal agent of early blight disease in tomato plant”
Claim · model-written summary
Strain AzR-051 produced 13.73 μmol ml(-1) IAA, the highest among the compared strains.
- Taxon
- Azadirachta indica A. Juss.
.jpg?width=60)
Azadirachta indicae1 - Interactor
- Streptomyces strain AzR-051e0symbiont
- Outcome
- amount of IAAe0
- Direction
- higheste0
- Value
- 13.73 μmol ml(-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Streptomyces strain AzR-051 produced the highest amount of IAA at 13.73 μmol ml(-1) , compared to strains AzR-049 and AzR-010 9.22 μmol ml(-1) and 10.43 μmol ml(-1) respectively”
e1“Azadirachta indica A. Juss.”
Claim · model-written summary
Strain AzR-049 produced 9.22 μmol ml(-1) IAA.
- Taxon
- Azadirachta indica A. Juss.Azadirachta indicae1
- Interactor
- AzR-049e0symbiont
- Outcome
- IAAe0
- Value
- 9.22 μmol ml(-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces strain AzR-051 produced the highest amount of IAA at 13.73 μmol ml(-1) , compared to strains AzR-049 and AzR-010 9.22 μmol ml(-1) and 10.43 μmol ml(-1) respectively”
e1“Azadirachta indica A. Juss.”
Claim · model-written summary
Strain AzR-010 produced 10.43 μmol ml(-1) IAA.
- Taxon
- Azadirachta indica A. Juss.Azadirachta indicae1
- Interactor
- AzR-010e0symbiont
- Outcome
- IAAe0
- Value
- 10.43 μmol ml(-1)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Streptomyces strain AzR-051 produced the highest amount of IAA at 13.73 μmol ml(-1) , compared to strains AzR-049 and AzR-010 9.22 μmol ml(-1) and 10.43 μmol ml(-1) respectively”
e1“Azadirachta indica A. Juss.”
Claim · model-written summary
AzR-051 produced more siderophores than the other two strains.
- Taxon
- Azadirachta indica A. Juss.Azadirachta indicae2
- Interactor
- Streptomyces strain AzR-051e1symbiont
- Outcome
- siderophorese0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also produces siderophores higher than the other two strains”
e1“Streptomyces strain AzR-051”
e2“Azadirachta indica A. Juss.”
The same questions in other papers
Streptomyces · growth · Solanum lycopersicum (tomato)Results agree
6 papers in the same direction as this paper
- positive
- 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.