Abstract
The physiological and molecular responses of five strains of Streptomyces sp. (CAI-17, CAI-68, CAI-78, KAI-26 and KAI-27), with their proven potential for charcoal rot disease control in sorghum and plant growth-promotion (PGP) in sorghum and rice, were studied to understand the mechanisms causing the beneficial effects. In this investigation, those five strains were evaluated for their PGP capabilities in chickpea in the 2012-13 and 2013-14 post-rainy seasons. All of the Streptomyces sp. strains exhibited enhanced nodule number, nodule weight, root weight and shoot weight at 30 days after sowing (DAS) and pod number, pod weight, leaf area, leaf weight and stem weight at 60 DAS in both seasons over the un-inoculated control. At crop maturity, the Streptomyces strains had enhanced stover yield, grain yield, total dry matter and seed number plant(-1) in both seasons over the un-inoculated control. In the rhizosphere, the Streptomyces sp. also significantly enhanced microbial biomass carbon, dehydrogenase activity, total nitrogen, available phosphorous and organic carbon in both seasons over the un-inoculated control. Of the five strains of Streptomyces sp., CAI-17, CAI-68 and CAI-78 were superior to KAI-26 and KAI-27 in terms of their effects on root and shoot development, nodule formation and crop productivity. Scanning electron microscopy (SEM) micrographs had revealed the success in colonization of the chickpea roots by all five strains. Quantitative real-time PCR (qRT-PCR) analysis of selected PGP genes of actinomycetes revealed the selective up-regulation of indole-3-acetic acid (IAA)-related and siderophore-related genes by CAI-68 and of β-1,3-glucanase genes by KAI-26.
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Claims 12
Claim · model-written summary
Streptomyces strains enhanced chickpea nodule number and nodule weight at 30 days after sowing over the un-inoculated control in both seasons.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- Streptomyces sp. strainse0
- Interactor
- Streptomyces sp.
Streptomyces sp.t1other - Outcome
- nodule number, nodule weighte0
- Direction
- enhancede0
- Qualifier
- 30 days after sowing (DAS)e0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“All of the Streptomyces sp. strains exhibited enhanced nodule number, nodule weight, root weight and shoot weight at 30 days after sowing (DAS) and pod number, pod weight, leaf area, leaf weight and stem weight at 60 DAS in both seasons over the un-inoculated control”
Claim · model-written summary
Streptomyces strains enhanced chickpea root weight and shoot weight at 30 days after sowing over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces sp. strainse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- root weight and shoot weighte0
- Direction
- enhancede0
- Qualifier
- 30 days after sowing (DAS)e0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“All of the Streptomyces sp. strains exhibited enhanced nodule number, nodule weight, root weight and shoot weight at 30 days after sowing (DAS) and pod number, pod weight, leaf area, leaf weight and stem weight at 60 DAS in both seasons over the un-inoculated control”
Claim · model-written summary
Streptomyces strains enhanced chickpea pod number, pod weight and leaf area at 60 DAS over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces sp. strainse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- pod number, pod weight, leaf areae0
- Direction
- enhancede0
- Qualifier
- 60 DASe0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“All of the Streptomyces sp. strains exhibited enhanced nodule number, nodule weight, root weight and shoot weight at 30 days after sowing (DAS) and pod number, pod weight, leaf area, leaf weight and stem weight at 60 DAS in both seasons over the un-inoculated control”
Claim · model-written summary
Streptomyces strains enhanced chickpea leaf weight and stem weight at 60 DAS over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces sp. strainse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- leaf weight and stem weighte0
- Direction
- enhancede0
- Qualifier
- 60 DASe0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“All of the Streptomyces sp. strains exhibited enhanced nodule number, nodule weight, root weight and shoot weight at 30 days after sowing (DAS) and pod number, pod weight, leaf area, leaf weight and stem weight at 60 DAS in both seasons over the un-inoculated control”
Claim · model-written summary
At crop maturity, Streptomyces strains enhanced chickpea stover yield, grain yield and total dry matter over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces strainse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- stover yield, grain yield, total dry mattere0
- Direction
- enhancede0
- Qualifier
- At crop maturitye0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“At crop maturity, the Streptomyces strains had enhanced stover yield, grain yield, total dry matter and seed number plant(-1) in both seasons over the un-inoculated control”
Claim · model-written summary
At crop maturity, Streptomyces strains enhanced chickpea seed number per plant over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces strainse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- seed number plant(-1)e0
- Direction
- enhancede0
- Qualifier
- At crop maturitye0
- Comparator
- un-inoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“At crop maturity, the Streptomyces strains had enhanced stover yield, grain yield, total dry matter and seed number plant(-1) in both seasons over the un-inoculated control”
Claim · model-written summary
In the rhizosphere, Streptomyces significantly enhanced microbial biomass carbon, dehydrogenase activity and total nitrogen over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces sp.e0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- microbial biomass carbon, dehydrogenase activity, total nitrogene0
- Direction
- enhancede0
- Comparator
- un-inoculated controle0
- Setting
- rhizospheree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“In the rhizosphere, the Streptomyces sp. also significantly enhanced microbial biomass carbon, dehydrogenase activity, total nitrogen, available phosphorous and organic carbon in both seasons over the un-inoculated control”
Claim · model-written summary
In the rhizosphere, Streptomyces significantly enhanced available phosphorous and organic carbon over the un-inoculated control in both seasons.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Streptomyces sp.e0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- available phosphorous and organic carbone0
- Direction
- enhancede0
- Comparator
- un-inoculated controle0
- Setting
- rhizospheree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“In the rhizosphere, the Streptomyces sp. also significantly enhanced microbial biomass carbon, dehydrogenase activity, total nitrogen, available phosphorous and organic carbon in both seasons over the un-inoculated control”
Claim · model-written summary
Strains CAI-17, CAI-68 and CAI-78 were superior to KAI-26 and KAI-27 in their effects on chickpea root and shoot development, nodule formation and crop productivity.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- CAI-17, CAI-68 and CAI-78e0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- effects on root and shoot development, nodule formation and crop productivitye0
- Direction
- superiore0
- Comparator
- KAI-26 and KAI-27e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“CAI-17, CAI-68 and CAI-78 were superior to KAI-26 and KAI-27 in terms of their effects on root and shoot development, nodule formation and crop productivity”
Claim · model-written summary
Scanning electron microscopy showed successful colonization of chickpea roots by all five Streptomyces strains.
- Taxon
- chickpeaCicer arietinume0
- Organ / stage
- rootse0
- Interactor
- Streptomyces sp.Streptomyces sp.t1other
- Outcome
- colonizatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
t1“Streptomyces sp.”
e0“Scanning electron microscopy (SEM) micrographs had revealed the success in colonization of the chickpea roots by all five strains”
Claim · model-written summary
qRT-PCR showed selective up-regulation of IAA-related and siderophore-related PGP genes of actinomycetes by strain CAI-68.
- Taxon
- actinomycetesActinomycetese0
- Treatment
- CAI-68e0
- Outcome
- indole-3-acetic acid (IAA)-related and siderophore-related genese0
- Direction
- up-regulatione0
Not reportedComparator
Verbatim
e0“Quantitative real-time PCR (qRT-PCR) analysis of selected PGP genes of actinomycetes revealed the selective up-regulation of indole-3-acetic acid (IAA)-related and siderophore-related genes by CAI-68 and of β-1,3-glucanase genes by KAI-26”
Claim · model-written summary
qRT-PCR showed selective up-regulation of β-1,3-glucanase genes of actinomycetes by strain KAI-26.
- Taxon
- actinomycetesActinomycetese0
- Treatment
- KAI-26e0
- Outcome
- β-1,3-glucanase genese0
- Direction
- up-regulatione0
Not reportedComparator
Verbatim
e0“Quantitative real-time PCR (qRT-PCR) analysis of selected PGP genes of actinomycetes revealed the selective up-regulation of indole-3-acetic acid (IAA)-related and siderophore-related genes by CAI-68 and of β-1,3-glucanase genes by KAI-26”
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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.