Abstract
In coming decades, drought is expected to expand globally owing to increased evaporation and reduced rainfall. Understanding, predicting, and controlling crop plants' rhizosphere has the potential to manipulate its responses to environmental stress. Our plant growth-promoting rhizobacteria (PGPR) are isolated from a natural laboratory, 'The Evolution Canyon', Israel, (EC), from the wild progenitors of cereals, where they have been co-habituating with their hosts for long periods of time. The study revealed that commercial TM50 silica particles (SN) triggered the PGPR production of exopolysaccharides (EPS) containing D-glucuronate (D-GA). The increased EPS content increased the PGPR water-holding capacity (WHC) and osmotic pressure of the biofilm matrix, which led to enhanced plant biomass in drought-stressed growth environments. Light- and cryo-electron- microscopic studies showed that, in the presence of silica (SN) particles, bacterial morphology is changed, indicating that SNs are associated with significant reprogramming in bacteria. The findings encourage the development of large-scale methods for isolate formulation with natural silicas that ensure higher WHC and hyperosmolarity under field conditions. Osmotic pressure involvement of holobiont cohabitation is also discussed.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Silica particles triggered PGPR production of exopolysaccharides containing D-glucuronate.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- commercial TM50 silica particles (SN)e0
- Interactor
- PGPRe0symbiont
- Outcome
- PGPR production of exopolysaccharides (EPS) containing D-glucuronate (D-GA)e0
- Direction
- triggerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“commercial TM50 silica particles (SN) triggered the PGPR production of exopolysaccharides (EPS) containing D-glucuronate (D-GA).”
t0“Wheat Biomass”
Claim · model-written summary
Greater EPS content increased PGPR water-holding capacity.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- PGPRe0symbiont
- Compound
- EPSe0
- Outcome
- PGPR water-holding capacity (WHC)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased EPS content increased the PGPR water-holding capacity (WHC) and osmotic pressure of the biofilm matrix, which led to enhanced plant biomass in drought-stressed growth environments.”
t0“Wheat Biomass”
Claim · model-written summary
Greater EPS content increased biofilm-matrix osmotic pressure.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- PGPRe0symbiont
- Compound
- EPSe0
- Outcome
- osmotic pressure of the biofilm matrixe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased EPS content increased the PGPR water-holding capacity (WHC) and osmotic pressure of the biofilm matrix, which led to enhanced plant biomass in drought-stressed growth environments.”
t0“Wheat Biomass”
Claim · model-written summary
The EPS-mediated water retention and osmotic pressure enhanced wheat biomass in drought-stressed growth environments.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- PGPRe0symbiont
- Compound
- EPSe0
- Outcome
- plant biomasse0
- Direction
- enhancede0
- Qualifier
- drought-stressed growth environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased EPS content increased the PGPR water-holding capacity (WHC) and osmotic pressure of the biofilm matrix, which led to enhanced plant biomass in drought-stressed growth environments.”
t0“Wheat Biomass”
Claim · model-written summary
Silica particles changed bacterial morphology.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- silica (SN) particlese0
- Interactor
- plant growth-promoting rhizobacteria (PGPR)e1symbiont
- Outcome
- bacterial morphology is changede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the presence of silica (SN) particles, bacterial morphology is changed, indicating that SNs are associated with significant reprogramming in bacteria.”
e1“plant growth-promoting rhizobacteria (PGPR)”
t0“Wheat Biomass”
The same questions in other papers
silicon dioxide · growth · Triticum aestivum (wheat)Results differ
14 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
16 papers more in this group
See all 20 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.