Abstract
Two experiments were conducted using gnotobiotic conditions and sand culture treatment to determine the effects of root colonization by zinc-solubilizing bacteria (ZSB) on rice growth. Both experiments were designed as complete randomized designs. The first experiment was conducted in a growth chamber under gnobiotic conditions. Five-day-old rice plantlets (MR219) were inoculated with bacterial isolates—Acinetobacter sp. (TM56) and Serratia sp. (TM9). The roots were cut for analysis using scanning electron microscopy and transmission electron microscopy. The second experiment was also conducted in a growth chamber under sand culture conditions. The treatments consisted of the control, two bacterial isolates—Acinetobacter sp (TM56) and Serratia sp. (TM9), two types of zinc sources—ZnSO4 and ZnO and three zinc rates—0 mg/L, 0.2 mg/L and 0.4 mg/L. Data were subjected to analysis of variance and means comparison. Acinetobacter sp. and Serratia sp. were able to colonize and penetrate rice plant roots. Bacterial populations of Serratia sp. were affected by different rates of zinc for endophytes and the rhizosphere. From the study, there were significant differences among bacterial inoculation and the different rates and sources of zinc. However, inoculation with Acinetobacter sp. at 0.2 mg/L of ZnSO4 produced the highest rice plant growth and root development. It was concluded that rice plant growth was affected by ZSB inoculation, zinc sources and the rate of zinc.
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Claims 8
Claim · model-written summary
Acinetobacter sp. colonized and penetrated rice plant roots.
- Taxon
- rice
Oryza sativae0 - Interactor
- Acinetobacter sp.
Acinetobactere0symbiont - Outcome
- colonize and penetrate rice plant rootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acinetobacter sp. and Serratia sp. were able to colonize and penetrate rice plant roots”
Claim · model-written summary
Serratia sp. colonized and penetrated rice plant roots.
- Taxon
- riceOryza sativae0
- Interactor
- Serratia sp.e0symbiont
- Outcome
- colonize and penetrate rice plant rootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acinetobacter sp. and Serratia sp. were able to colonize and penetrate rice plant roots”
Claim · model-written summary
Zinc rates affected endophytic Serratia sp. populations in rice.
- Taxon
- riceOryza sativat0
- Treatment
- different rates of zince0
- Interactor
- Serratia sp.e0symbiont
- Outcome
- Bacterial populations of Serratia sp.e0
- Qualifier
- endophytese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial populations of Serratia sp. were affected by different rates of zinc for endophytes and the rhizosphere”
t0“rice plant”
Claim · model-written summary
Zinc rates affected rhizosphere Serratia sp. populations in rice.
- Taxon
- riceOryza sativat0
- Treatment
- different rates of zince0
- Interactor
- Serratia sp.e0symbiont
- Outcome
- Bacterial populations of Serratia sp.e0
- Qualifier
- rhizospheree0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial populations of Serratia sp. were affected by different rates of zinc for endophytes and the rhizosphere”
t0“rice plant”
Claim · model-written summary
Rice responses differed significantly among bacterial inoculations and zinc rates and sources.
- Taxon
- riceOryza sativat0
- Treatment
- bacterial inoculation and the different rates and sources of zince0
- Outcome
- significant differencese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were significant differences among bacterial inoculation and the different rates and sources of zinc”
t0“rice plant”
Claim · model-written summary
Acinetobacter sp. inoculation with 0.2 mg/L ZnSO4 produced the highest rice plant growth.
- Taxon
- riceOryza sativae0
- Treatment
- inoculation with Acinetobacter sp. at 0.2 mg/L of ZnSO4e0
- Interactor
- Acinetobacter sp.Acinetobactere0symbiont
- Outcome
- rice plant growthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with Acinetobacter sp. at 0.2 mg/L of ZnSO4 produced the highest rice plant growth and root development”
Claim · model-written summary
Acinetobacter sp. inoculation with 0.2 mg/L ZnSO4 produced the highest rice root development.
- Taxon
- riceOryza sativae0
- Organ / stage
- roote0
- Treatment
- inoculation with Acinetobacter sp. at 0.2 mg/L of ZnSO4e0
- Interactor
- Acinetobacter sp.Acinetobactere0symbiont
- Outcome
- root developmente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation with Acinetobacter sp. at 0.2 mg/L of ZnSO4 produced the highest rice plant growth and root development”
Claim · model-written summary
The authors concluded that rice growth was affected by bacterial inoculation, zinc source and zinc rate.
- Taxon
- riceOryza sativae0
- Treatment
- ZSB inoculation, zinc sources and the rate of zince0
- Outcome
- rice plant growthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice plant growth was affected by ZSB inoculation, zinc sources and the rate of zinc”
The same questions in other papers
zinc sulfate · growth · Oryza sativa (rice)Positive and negative results
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- no effect
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- positive
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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.