Abstract
A novel phosphate-solubilizing bacterium HPP16 from plant rhizosphere of Shandong University of Science and Technology districts of Qingdao (China) was isolated and the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan; two kinds of acidic soils were studied. HPP16 was identified as Enterobacter asburiae on the basis of 16S rDNA sequencing. It was Indole-3-acetic acid producer, synthesized siderophores and showed acid phosphatase activity. After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control), and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control). The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4, and increased by 8.5, 24 and 9% in B-2 compared to B-4. Mung bean could also increase to absorb K+, Na+ and Mg2+ and improve the production of endogenous indole acetic acid (IAA), and also it reduced the production of abscisic acid (ABA). Findings of this study suggest that HPP16 may be exploited for developing a potential source of biofertilizer. Key words: Plant growth promoting rhizobacteria, indole-3-acetic acid, siderophore, Enterobacter asburiae HPP16, mung bean, abscisic acid, phosphate-solubilizing bacteria (PSB).
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Claims 16
Claim · model-written summary
HPP16 inoculation increased mung bean germination rate by 26% in soil A-2 relative to the distilled-water control.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatae1 - Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide2
- Interactor
- HPP16e2symbiont
- Outcome
- germination ratee2
- Direction
- increasede2
- Value
- 26e2
- Comparator
- inoculated with the distilled water; negative controle2
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
Claim · model-written summary
HPP16 inoculation increased mung bean healthy stand by 25% in soil A-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide2
- Interactor
- HPP16e2symbiont
- Outcome
- healthy stande2
- Direction
- increasede2
- Value
- 25%e2
- Comparator
- inoculated with the distilled water; negative controle2
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
Claim · model-written summary
HPP16 inoculation gave a germination rate 26% higher than the distilled-water control in soil B-2.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide3
- Interactor
- HPP16e2symbiont
- Outcome
- germination ratee2
- Direction
- increaseinferrede3
- Value
- 26e3
- Comparator
- inoculated with the distilled water, negative controle3
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
e3“and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control)”
Claim · model-written summary
HPP16 inoculation gave a healthy stand 31.7% higher than the distilled-water control in soil B-2.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide3
- Interactor
- HPP16e2symbiont
- Outcome
- healthy stande2
- Direction
- increaseinferrede3
- Value
- 31.7%e3
- Comparator
- inoculated with the distilled water, negative controle3
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
e3“and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control)”
Claim · model-written summary
HPP16 inoculation increased plant height of mung bean by 7% in soil A-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide2
- Interactor
- HPP16e2symbiont
- Outcome
- plant heighte4
- Direction
- increasede4
- Value
- 7e4
- Comparator
- inoculated with the distilled water; negative controle2
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
e4“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4”
Claim · model-written summary
HPP16 inoculation increased fresh weight of mung bean by 10% in soil A-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide2
- Interactor
- HPP16e2symbiont
- Outcome
- fresh weighte4
- Direction
- increasede4
- Value
- 10e4
- Comparator
- inoculated with the distilled water; negative controle2
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
e4“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4”
Claim · model-written summary
HPP16 inoculation increased dry weight of mung bean by 6% in soil A-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide2
- Interactor
- HPP16e2symbiont
- Outcome
- dry weighte4
- Direction
- increasede4
- Value
- 6%e4
- Comparator
- inoculated with the distilled water; negative controle2
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16, the germination rate and healthy stand in A-2 (inoculated with fermentation liquid) increased by 26 and 25% compared to A-4 (inoculated with the distilled water; negative control)”
e4“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4”
Claim · model-written summary
HPP16 inoculation increased plant height of mung bean by 8.5% in soil B-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide3
- Interactor
- HPP16e2symbiont
- Outcome
- plant heighte5
- Direction
- increasede5
- Value
- 8.5e5
- Comparator
- inoculated with the distilled water, negative controle3
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e3“and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control)”
e5“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4, and increased by 8.5, 24 and 9% in B-2 compared to B-4”
e2“After mung bean was inoculated with HPP16”
Claim · model-written summary
HPP16 inoculation increased fresh weight of mung bean by 24% in soil B-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide3
- Interactor
- HPP16e2symbiont
- Outcome
- fresh weighte5
- Direction
- increasede5
- Value
- 24e5
- Comparator
- inoculated with the distilled water, negative controle3
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e3“and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control)”
e5“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4, and increased by 8.5, 24 and 9% in B-2 compared to B-4”
e2“After mung bean was inoculated with HPP16”
Claim · model-written summary
HPP16 inoculation increased dry weight of mung bean by 9% in soil B-2 relative to the distilled-water control.
- Taxon
- mung beanVigna radiatae1
- Organ / stage
- seedlingse1
- Treatment
- inoculated with fermentation liquide3
- Interactor
- HPP16e2symbiont
- Outcome
- dry weighte5
- Direction
- increasede5
- Value
- 9%e5
- Comparator
- inoculated with the distilled water, negative controle3
- Setting
- Campus and Jinshatane1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e3“and were 26 and 31.7% in B-2 (inoculated with fermentation liquid) compared to B-4 (inoculated with the distilled water, negative control)”
e5“The individual plant height, fresh weight and dry weight in A-2 increased by 7, 10 and 6% compared to A-4, and increased by 8.5, 24 and 9% in B-2 compared to B-4”
e2“After mung bean was inoculated with HPP16”
Claim · model-written summary
HPP16 inoculation could increase mung bean uptake of K+, Na+ and Mg2+.
- Taxon
- Mung beanVigna radiatae6
- Treatment
- inoculated with HPP16e2
- Interactor
- HPP16e2symbiont
- Outcome
- absorb K+, Na+ and Mg2+e6
- Direction
- increasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After mung bean was inoculated with HPP16”
e6“Mung bean could also increase to absorb K+, Na+ and Mg2+”
Claim · model-written summary
HPP16 inoculation improved the production of endogenous indole acetic acid in mung bean.
- Taxon
- Mung beanVigna radiatae6
- Treatment
- inoculated with HPP16e2
- Interactor
- HPP16e2symbiont
- Outcome
- production of endogenous indole acetic acid (IAA)e7
- Direction
- improvee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After mung bean was inoculated with HPP16”
e6“Mung bean could also increase to absorb K+, Na+ and Mg2+”
e7“improve the production of endogenous indole acetic acid (IAA)”
Claim · model-written summary
HPP16 inoculation reduced the production of abscisic acid in mung bean.
- Taxon
- Mung beanVigna radiatae6
- Treatment
- inoculated with HPP16e2
- Interactor
- HPP16e2symbiont
- Outcome
- production of abscisic acid (ABA)e7
- Direction
- reducede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“After mung bean was inoculated with HPP16”
e6“Mung bean could also increase to absorb K+, Na+ and Mg2+”
e7“and also it reduced the production of abscisic acid (ABA)”
Claim · model-written summary
Strain HPP16 was identified as Enterobacter asburiae by 16S rDNA sequencing.
- Taxon
- mung beanVigna radiatae1
- Interactor
- HPP16e7symbiont
- Outcome
- identified as Enterobacter asburiaee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e7“HPP16 was identified as Enterobacter asburiae on the basis of 16S rDNA sequencing”
Claim · model-written summary
HPP16 is an indole-3-acetic acid producer that synthesizes siderophores and shows acid phosphatase activity.
- Taxon
- mung beanVigna radiatae1
- Interactor
- HPP16e2symbiont
- Outcome
- Indole-3-acetic acid producer, synthesized siderophores and showed acid phosphatase activitye7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e2“After mung bean was inoculated with HPP16”
e7“Indole-3-acetic acid producer, synthesized siderophores and showed acid phosphatase activity”
Claim · model-written summary
The authors suggest HPP16 may be exploited as a potential source of biofertilizer.
- Taxon
- mung beanVigna radiatae1
- Interactor
- HPP16e7symbiont
- Outcome
- potential source of biofertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the effects on promoting growth of mung bean (Phaseolus radiatus) seedlings in Campus and Jinshatan”
e7“HPP16 may be exploited for developing a potential source of biofertilizer”
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