Abstract
Background: Zinc is an essential micronutrient required for optimum plant growth. Zinc-solubilizing bacteria convert applied inorganic zinc to available forms that could be used by plants. Research design: In present study, experiments were conducted to isolate, characterize, and evaluate Zn solubilization potential of different bacteria. Results: Among 10 isolated strains, Pseudomonas protegens (RY2, MF351762) was found to be the most promising strain having zinc-solubilizing potential on 4 different insoluble zinc sources. In quantitative assay, Zn solubilization by RY2 was significantly higher than other strains at different incubation time. P. protegens RY2 was selected (based on zinc solubilizing and plant growth promoting activities like P solubilization and ACC deaminase) for plant experiments. Meanwhile, available Zn release rate in soil was determined at day 10 of incubation. Chickpea seeds were inoculated with RY2 strain and ZnO is used as zinc source. Growth parameters and quantifying zinc content of shoot and root using atomic absorption spectrophotometer were determined. Enhanced shoot and root dry weights and lengths were observed in chickpea plants compared to control. Maximum increase of 44%, 67%, and 75% in T2 (Soil + RY2), T5 (Soil + ZnO + RY2), and T7 (Soil + manure + ZnO + RY2), respectively, was found in shoot length compared to control (T1). Conclusion: The study indicated that zinc-solubilizing RY2 strain possesses potential for enhanced Zn in soil so it would allow reduced inorganic Zn application.
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Claims 8
Claim · model-written summary
Pseudomonas protegens RY2 was the most promising of 10 isolated strains for zinc solubilization on four insoluble zinc sources.
- Taxon
- Chickpea
Cicer arietinumt0 - Interactor
- Pseudomonas protegensPseudomonas protegense1symbiont
- Outcome
- zinc-solubilizing potentiale1
- Qualifier
- on 4 different insoluble zinc sourcese1
- Comparator
- Among 10 isolated strainse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e1“Among 10 isolated strains, Pseudomonas protegens (RY2, MF351762) was found to be the most promising strain having zinc-solubilizing potential on 4 different insoluble zinc sources”
Claim · model-written summary
Zinc solubilization by RY2 was significantly higher than by other strains at different incubation times.
- Taxon
- ChickpeaCicer arietinumt0
- Interactor
- RY2e2symbiont
- Outcome
- Zn solubilizatione2
- Direction
- highere2
- Comparator
- other strainse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e2“In quantitative assay, Zn solubilization by RY2 was significantly higher than other strains at different incubation time”
Claim · model-written summary
Inoculation with RY2 enhanced shoot and root dry weights and lengths of chickpea plants compared with the control.
- Taxon
- chickpeaCicer arietinume3
- Organ / stage
- shoot and roote3
- Treatment
- inoculated with RY2 straine4
- Interactor
- RY2e4symbiont
- Outcome
- shoot and root dry weights and lengthse3
- Direction
- Enhancede3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Enhanced shoot and root dry weights and lengths were observed in chickpea plants compared to control”
e4“Chickpea seeds were inoculated with RY2 strain and ZnO is used as zinc source”
Claim · model-written summary
Soil plus RY2 (T2) increased shoot length of chickpea by 44% compared with the control (T1).
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Soil + RY2e5
- Interactor
- RY2e5symbiont
- Outcome
- shoot lengthe5
- Direction
- increasee5
- Value
- 44%e5
- Comparator
- control (T1)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e5“Maximum increase of 44%, 67%, and 75% in T2 (Soil + RY2), T5 (Soil + ZnO + RY2), and T7 (Soil + manure + ZnO + RY2), respectively, was found in shoot length compared to control (T1)”
Claim · model-written summary
Soil plus ZnO plus RY2 (T5) increased shoot length of chickpea by 67% compared with the control (T1).
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Soil + ZnO + RY2e5
- Interactor
- RY2e5symbiont
- Outcome
- shoot lengthe5
- Direction
- increasee5
- Value
- 67%e5
- Comparator
- control (T1)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e5“Maximum increase of 44%, 67%, and 75% in T2 (Soil + RY2), T5 (Soil + ZnO + RY2), and T7 (Soil + manure + ZnO + RY2), respectively, was found in shoot length compared to control (T1)”
Claim · model-written summary
Soil plus manure plus ZnO plus RY2 (T7) increased shoot length of chickpea by 75% compared with the control (T1).
- Taxon
- ChickpeaCicer arietinumt0
- Treatment
- Soil + manure + ZnO + RY2e5
- Interactor
- RY2e5symbiont
- Outcome
- shoot lengthe5
- Direction
- increasee5
- Value
- 75%e5
- Comparator
- control (T1)e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e5“Maximum increase of 44%, 67%, and 75% in T2 (Soil + RY2), T5 (Soil + ZnO + RY2), and T7 (Soil + manure + ZnO + RY2), respectively, was found in shoot length compared to control (T1)”
Claim · model-written summary
RY2 would allow reduced inorganic zinc application on chickpea.
- Taxon
- ChickpeaCicer arietinumt0
- Interactor
- RY2e6symbiont
- Outcome
- reduced inorganic Zn applicatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e6“The study indicated that zinc-solubilizing RY2 strain possesses potential for enhanced Zn in soil so it would allow reduced inorganic Zn application”
Claim · model-written summary
RY2 possesses potential for enhanced zinc in soil.
- Taxon
- ChickpeaCicer arietinumt0
- Interactor
- RY2e6symbiont
- Outcome
- Zn in soile6
- Direction
- enhancede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth of Chickpea ( Cicer arietinum L)”
e6“The study indicated that zinc-solubilizing RY2 strain possesses potential for enhanced Zn in soil so it would allow reduced inorganic Zn application”
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See all 152 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.