Abstract
This work aimed at investigating the changes in cellular compositions of cucumber seedlings as enhanced by plant growth promoting rhizobacteria, Bacillus subtilis Bs008 using the Fourier transforminfrared spectroscopy (FT-IR). The objective of this study was to test the hypothesis that Bs008 stimulates production of plant cellular components involved in metabolism and growth development mechanisms. Cucumber vegetative propagation and treatment with Bs008 or with sterile distilled water was done in sterile soil, after incubation for 28 days, Bs008 treated cucumber seedlings had more lateral root, longer roots, shoot length and greater biomass than the control. We also focused on plant cellular composition, and cucumber seedling tissues from the two treatments were harvested for FT-IR analysis. FT-IR analyses revealed that lipid was highly accumulated in response to the strain Bs008. The cucumber seedling treated with the beneficial bacteria B. subtilis strain Bs008 shows the beta sheet secondary structure and apparently appeared with high polysaccharide content but the lipid content was decreased when compared with those of the cucumber seedling treated with distilled water. Our results demonstrate that Bs008 can enhance plant growth under laboratory conditions by direct stimulation of cucumber polysaccharides. Key words: Plant growth promotion, Bacillus subtilis Bs008, cucumber, cellular composition, FTIR spectroscopy.
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Claims 6
Claim · model-written summary
Bs008 treatment increased cucumber lateral roots, root and shoot length, and biomass versus water control.
- Taxon
- cucumber seedlings
Cucumis sativuse0 - Treatment
- treatment with Bs008e1
- Interactor
- Bs008e0symbiont
- Outcome
- more lateral root, longer roots, shoot length and greater biomasse0
- Direction
- moree0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bs008 treated cucumber seedlings had more lateral root, longer roots, shoot length and greater biomass than the control”
e1“treatment with Bs008 or with sterile distilled water”
Claim · model-written summary
FT-IR analysis indicated lipid accumulation in cucumber in response to Bs008.
- Taxon
- cucumber seedlingsCucumis sativust0
- Treatment
- Bs008e0
- Interactor
- Bs008e0symbiont
- Outcome
- lipide0
- Direction
- highly accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“FT-IR analyses revealed that lipid was highly accumulated in response to the strain Bs008”
t0“cucumber seedlings”
Claim · model-written summary
Bs008-treated cucumber seedlings showed beta sheet secondary structure.
- Taxon
- cucumber seedlingCucumis sativuse0
- Treatment
- treated with the beneficial bacteria B. subtilis strain Bs008e0
- Interactor
- B. subtilis strain Bs008
Bacillus subtilise0symbiont - Outcome
- beta sheet secondary structuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cucumber seedling treated with the beneficial bacteria B. subtilis strain Bs008 shows the beta sheet secondary structure”
Claim · model-written summary
Bs008-treated cucumber seedlings had high polysaccharide content.
- Taxon
- cucumber seedlingCucumis sativuse0
- Treatment
- treated with the beneficial bacteria B. subtilis strain Bs008e0
- Interactor
- B. subtilis strain Bs008Bacillus subtilise0symbiont
- Outcome
- polysaccharide contente0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cucumber seedling treated with the beneficial bacteria B. subtilis strain Bs008 shows the beta sheet secondary structure and apparently appeared with high polysaccharide content”
Claim · model-written summary
Bs008-treated cucumber seedlings had lower lipid content than water-treated seedlings.
- Taxon
- cucumber seedlingCucumis sativuse0
- Treatment
- treated with the beneficial bacteria B. subtilis strain Bs008e1
- Interactor
- B. subtilis strain Bs008Bacillus subtilise1symbiont
- Outcome
- lipid contente0
- Direction
- decreasede0
- Comparator
- the cucumber seedling treated with distilled watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lipid content was decreased when compared with those of the cucumber seedling treated with distilled water”
e1“The cucumber seedling treated with the beneficial bacteria B. subtilis strain Bs008”
Claim · model-written summary
The authors attributed Bs008-enhanced cucumber growth under laboratory conditions to stimulation of polysaccharides.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- Bs008e0
- Interactor
- Bs008e0symbiont
- Outcome
- plant growthe0
- Qualifier
- direct stimulation of cucumber polysaccharidese0
- Setting
- laboratory conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bs008 can enhance plant growth under laboratory conditions by direct stimulation of cucumber polysaccharides”
The same questions in other papers
Bacillus subtilis · molecular: metabolites · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- positive
- positive
inoculation · molecular: metabolites · Cucumis sativus (cucumber)Positive and negative results
21 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
19 papers more in this group
See all 23 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.