Abstract
To develop biofertilizers for rice in Afghanistan, 98 plant growth-promoting rhizobacteria were isolated from rice plants and their morphological and physiological characteristics, such as indole-3-acetic acid production, acetylene reduction, phosphate and potassium solubilization, and siderophore production, were evaluated. The genetic diversity of these bacteria was also analyzed based on 16S rRNA gene sequences. Of 98 bacteria, 89.7% produced IAA, 54.0% exhibited nitrogenase activity, and 40% showed phosphate solubilization and siderophore production. Some isolates assigned to Pseudomonas (brassicacearum, chengduensis, plecoglossicida, resinovorans, and straminea) formed a relationship with rice, and P. resinovorans and P. straminea showed nitrogen fixation. Rhizobium borbori and R. rosettiformans showed a relationship with rice plants and nitrogen fixation. Among the isolates examined, AF134 and AF137 belonging to Enterobacter ludwigii and P. putida produced large amounts of IAA (92.3 μg mL−1) and exhibited high nitrogenase activity (647.4 nmol C2H4 h−1), respectively. In the plant growth test, more than 70% of the inoculated isolates showed significantly increased root and shoot dry weights. Highly diverse bacterial isolates showing promising rice growth-promoting traits were obtained from Afghanistan alkaline soils.
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Claims 11
Claim · model-written summary
Among rice rhizobacteria, 89.7% produced IAA.
- Taxon
- Rice
Oryza sativat0 - Outcome
- produced IAAe0
- Value
- 89.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of 98 bacteria, 89.7% produced IAA, 54.0% exhibited nitrogenase activity, and 40% showed phosphate solubilization and siderophore production.”
t0“Rice Cultivars”
Claim · model-written summary
Among rice rhizobacteria, 54.0% exhibited nitrogenase activity.
- Taxon
- RiceOryza sativat0
- Outcome
- nitrogenase activitye0
- Value
- 54.0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of 98 bacteria, 89.7% produced IAA, 54.0% exhibited nitrogenase activity, and 40% showed phosphate solubilization and siderophore production.”
t0“Rice Cultivars”
Claim · model-written summary
Among rice rhizobacteria, 40% showed phosphate solubilization and siderophore production.
- Taxon
- RiceOryza sativat0
- Outcome
- phosphate solubilization and siderophore productione0
- Value
- 40%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of 98 bacteria, 89.7% produced IAA, 54.0% exhibited nitrogenase activity, and 40% showed phosphate solubilization and siderophore production.”
t0“Rice Cultivars”
Claim · model-written summary
Several Pseudomonas isolates were associated with rice.
- Taxon
- RiceOryza sativat0
- Interactor
- Pseudomonas
Pseudomonase0symbiont - Outcome
- formed a relationship with ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some isolates assigned to Pseudomonas (brassicacearum, chengduensis, plecoglossicida, resinovorans, and straminea) formed a relationship with rice, and P. resinovorans and P. straminea showed nitrogen fixation.”
t0“Rice Cultivars”
Claim · model-written summary
P. resinovorans associated with rice showed nitrogen fixation.
- Taxon
- RiceOryza sativat0
- Interactor
- P. resinovoransMetapseudomonas resinovoranse0symbiont
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some isolates assigned to Pseudomonas (brassicacearum, chengduensis, plecoglossicida, resinovorans, and straminea) formed a relationship with rice, and P. resinovorans and P. straminea showed nitrogen fixation.”
t0“Rice Cultivars”
Claim · model-written summary
P. straminea associated with rice showed nitrogen fixation.
- Taxon
- RiceOryza sativat0
- Interactor
- P. stramineaPhytopseudomonas stramineae0symbiont
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some isolates assigned to Pseudomonas (brassicacearum, chengduensis, plecoglossicida, resinovorans, and straminea) formed a relationship with rice, and P. resinovorans and P. straminea showed nitrogen fixation.”
t0“Rice Cultivars”
Claim · model-written summary
Rhizobium borbori associated with rice plants and fixed nitrogen.
- Taxon
- RiceOryza sativat0
- Interactor
- Rhizobium borboriAllorhizobium borborie0symbiont
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium borbori and R. rosettiformans showed a relationship with rice plants and nitrogen fixation.”
t0“Rice Cultivars”
Claim · model-written summary
R. rosettiformans associated with rice plants and fixed nitrogen.
- Taxon
- RiceOryza sativat0
- Interactor
- R. rosettiformansRhizobium rosettiformanse0symbiont
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhizobium borbori and R. rosettiformans showed a relationship with rice plants and nitrogen fixation.”
t0“Rice Cultivars”
Claim · model-written summary
Enterobacter ludwigii isolate AF134 produced 92.3 μg mL−1 IAA.
- Taxon
- RiceOryza sativat0
- Interactor
- Enterobacter ludwigiiEnterobacter ludwigiie0symbiont
- Outcome
- produced large amounts of IAAe0
- Direction
- largee0
- Value
- 92.3 μg mL−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the isolates examined, AF134 and AF137 belonging to Enterobacter ludwigii and P. putida produced large amounts of IAA (92.3 μg mL−1) and exhibited high nitrogenase activity (647.4 nmol C2H4 h−1), respectively.”
t0“Rice Cultivars”
Claim · model-written summary
P. putida isolate AF137 exhibited nitrogenase activity of 647.4 nmol C2H4 h−1.
- Taxon
- RiceOryza sativat0
- Interactor
- P. putida
Pseudomonas putidae0symbiont - Outcome
- high nitrogenase activitye0
- Direction
- highe0
- Value
- 647.4 nmol C2H4 h−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the isolates examined, AF134 and AF137 belonging to Enterobacter ludwigii and P. putida produced large amounts of IAA (92.3 μg mL−1) and exhibited high nitrogenase activity (647.4 nmol C2H4 h−1), respectively.”
t0“Rice Cultivars”
Claim · model-written summary
More than 70% of inoculated bacterial isolates significantly increased rice root and shoot dry weights.
- Taxon
- RiceOryza sativat0
- Treatment
- inoculated isolatese0
- Outcome
- root and shoot dry weightse0
- Direction
- increasede0
- Value
- more than 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the plant growth test, more than 70% of the inoculated isolates showed significantly increased root and shoot dry weights.”
t0“Rice Cultivars”
The same questions in other papers
inoculation · growth · Oryza sativa (rice)Positive and negative results
361 papers in the same direction as this paper · 34 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- positive
395 papers more in this group
See all 399 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.