Abstract
Bacillus subtilis was applied in peat-based soilless cultivation systems containing a mixed substrate (peat:vermiculite:perlite = 2:1:1, v/v/v) and irrigated by one-strength or four-strength Hoagland’s nutrient solution to explore whether it can alleviate inhibition by higher-nutrient solutions (four-strength) and bring benefits to improvements of quality. The results showed that higher-nutrient solutions improved the flavor quality of cucumber fruit; especially, the contents of (E,Z)-2,6-nonadienal and (E)-2-Nonenal were effectively increased, which are the special flavor substances of cucumber. B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions. Compared with the higher solution treatment, the bacterial diversity significantly increased, whereas the presence of fungi had no significant difference following the B. subtilis K424 application. Moreover, B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera. Redundancy analysis showed that Bacillus, Rhodanobacter, and Blastobotrys were positively correlated with the substrate enzyme of sucrase, catalase, and urease. This study provides insight that B. subtilis K424 mitigated the deleterious effects of high levels of nutrition solution on cucumber growth and quality by improving the substrate enzyme, regulating the microbial community structure, and enhancing the photosynthetic capacity.
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Claims 18
Claim · model-written summary
Higher nutrient solution improved cucumber fruit flavor quality.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- higher-nutrient solutionse0
- Outcome
- flavor qualitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher-nutrient solutions improved the flavor quality of cucumber fruit; especially, the contents of (E,Z)-2,6-nonadienal and (E)-2-Nonenal were effectively increased”
Claim · model-written summary
Higher nutrient solution increased cucumber fruit (E,Z)-2,6-nonadienal content.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- higher-nutrient solutionse0
- Outcome
- contents of (E,Z)-2,6-nonadienale0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher-nutrient solutions improved the flavor quality of cucumber fruit; especially, the contents of (E,Z)-2,6-nonadienal and (E)-2-Nonenal were effectively increased”
Claim · model-written summary
Higher nutrient solution increased cucumber fruit (E)-2-Nonenal content.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- higher-nutrient solutionse0
- Outcome
- (E)-2-Nonenale0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher-nutrient solutions improved the flavor quality of cucumber fruit; especially, the contents of (E,Z)-2,6-nonadienal and (E)-2-Nonenal were effectively increased”
Claim · model-written summary
B. subtilis K424 improved growth performance in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424
Bacillus subtilise0symbiont - Outcome
- growth performancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 improved photosynthetic capacity in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- photosynthetic capacitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 improved vitamin C content in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- vitamin C contente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 improved soluble sugars in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- soluble sugarse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 improved soluble protein in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- soluble proteine0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 improved total pectin in cucumber under higher nutrition solution conditions.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- B. subtilis K424e0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- total pectine0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 effectively improved growth performance, photosynthetic capacity, vitamin C content, soluble sugars, soluble protein, and total pectin in cucumber under higher nutrition solution conditions”
Claim · model-written summary
B. subtilis K424 increased rhizospheric bacterial diversity relative to higher solution alone.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424 applicatione0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- bacterial diversitye0
- Direction
- increasede0
- Comparator
- higher solution treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the higher solution treatment, the bacterial diversity significantly increased, whereas the presence of fungi had no significant difference following the B. subtilis K424 application”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 did not significantly change fungal presence relative to higher solution alone.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424 applicatione0
- Interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- presence of fungie0
- Direction
- no significant differencee0
- Comparator
- higher solution treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the higher solution treatment, the bacterial diversity significantly increased, whereas the presence of fungi had no significant difference following the B. subtilis K424 application”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 reduced relative abundance of Actinomadura.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- Actinomadura
.jpg?width=60)
Actinomadurae0other - Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundance of Actinomadurae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 promoted relative abundance of Rhodanobacter.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- RhodanobacterRhodanobactere0other
- Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundancee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 promoted relative abundance of Bacillus.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- Bacilluse0other
- Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundancee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 promoted relative abundance of Pseudomonas.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- Pseudomonas
Pseudomonase0other - Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundancee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 promoted relative abundance of Devosiaceae.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- DevosiaceaeDevosiaceaee0other
- Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundancee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
B. subtilis K424 promoted relative abundance of Blastobotrys.
- Taxon
- CucumberCucumis sativust0
- Treatment
- B. subtilis K424e0
- Interactor
- BlastobotrysBlastobotryse0other
- Second interactor
- B. subtilis K424Bacillus subtilise0symbiont
- Outcome
- relative abundancee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. subtilis K424 reduced the relative abundance of Actinomadura and promoted that of the Rhodanobacter, Bacillus, Pseudomonas, Devosiaceae, and Blastobotrys genera”
t0“Cucumber”
Claim · model-written summary
Bacillus, Rhodanobacter, and Blastobotrys were positively correlated with substrate sucrase, catalase, and urease.
- Taxon
- CucumberCucumis sativust0
- Interactor
- Bacilluse0other
- Outcome
- substrate enzyme of sucrase, catalase, and ureasee0
- Direction
- positively correlatede0
- Qualifier
- Rhodanobacter, and Blastobotryse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus, Rhodanobacter, and Blastobotrys were positively correlated with the substrate enzyme of sucrase, catalase, and urease”
t0“Cucumber”
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5 papers more in this group
See all 9 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.