Abstract
Chromium is highly harmful to plants because of its detrimental effects on the availability of vital nutrients and secondary metabolites required for proper plant growth and development. A hydroponic experiment was carried out to analyze the effect of citric acid on castor bean plants under chromium stress. Furthermore, the role of two chromium-resistant microorganisms, Bacillus subtilis and Staphylococcus aureus, in reducing Cr toxicity was investigated. Different amounts of chromium (0 µM, 100 µM, 200 µM) and citric acid (0 mM, 2.5 mM, and 5 mM) were used both alone and in combination to analyze the remediation potential. Results showed that elevated amounts of chromium (specifically 200 µM) minimized the growth and biomass because the high concentration of Cr induced the oxidative markers. Exogenous citric acid treatment boosted plant growth and development by improving photosynthesis via enzymes such as superoxide dismutase, guaiacol peroxidase, catalase, and ascorbate peroxidase, which decreased Cr toxicity. The application of citric acid helped the plants to produce a high concentration of antioxidants which countered the oxidants produced due to chromium stress. It revealed that castor bean plants treated with citric acid could offset the stress injuries by decreasing the H2O2, electrolyte leakage, and malondialdehyde levels. The inoculation of plants with bacteria further boosted the plant growth parameters by improving photosynthesis and reducing the chromium-induced toxicity in the plants. The findings demonstrated that the combination of citric acid and metal-resistant bacteria could be a valuable technique for heavy metal remediation and mediating the adverse effects of metal toxicity on plants.
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 9
Claim · model-written summary
High chromium reduced castor bean growth and biomass.
- Taxon
- castor bean plants
Ricinus communise0 - Treatment
- 200 µMe1
- Outcome
- growth and biomasse1
- Direction
- minimizede1
- Qualifier
- high concentration of Cr induced the oxidative markerse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“elevated amounts of chromium (specifically 200 µM) minimized the growth and biomass because the high concentration of Cr induced the oxidative markers”
Claim · model-written summary
Citric acid improved castor bean growth and development under chromium stress.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- citric acid treatmente1
- Outcome
- plant growth and developmente1
- Direction
- boostede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“Exogenous citric acid treatment boosted plant growth and development by improving photosynthesis via enzymes such as superoxide dismutase, guaiacol peroxidase, catalase, and ascorbate peroxidase, which decreased Cr toxicity”
Claim · model-written summary
Citric acid improved photosynthesis under chromium stress.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- citric acid treatmente1
- Outcome
- photosynthesise1
- Direction
- improvinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“Exogenous citric acid treatment boosted plant growth and development by improving photosynthesis via enzymes such as superoxide dismutase, guaiacol peroxidase, catalase, and ascorbate peroxidase, which decreased Cr toxicity”
Claim · model-written summary
Citric acid increased antioxidant production, countering chromium-related oxidants.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- application of citric acide1
- Outcome
- high concentration of antioxidantse1
- Direction
- highe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“The application of citric acid helped the plants to produce a high concentration of antioxidants which countered the oxidants produced due to chromium stress”
Claim · model-written summary
Citric acid reduced H2O2, electrolyte leakage, and malondialdehyde levels in castor bean.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- citric acide0
- Outcome
- H2O2, electrolyte leakage, and malondialdehyde levelse0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“castor bean plants treated with citric acid could offset the stress injuries by decreasing the H2O2, electrolyte leakage, and malondialdehyde levels”
Claim · model-written summary
Bacterial inoculation improved castor bean growth parameters.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- inoculation of plants with bacteriae1
- Outcome
- plant growth parameterse1
- Direction
- boostede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“The inoculation of plants with bacteria further boosted the plant growth parameters by improving photosynthesis and reducing the chromium-induced toxicity in the plants”
Claim · model-written summary
Bacterial inoculation improved photosynthesis in castor bean.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- inoculation of plants with bacteriae1
- Outcome
- photosynthesise1
- Direction
- improvinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“The inoculation of plants with bacteria further boosted the plant growth parameters by improving photosynthesis and reducing the chromium-induced toxicity in the plants”
Claim · model-written summary
Bacterial inoculation reduced chromium-induced toxicity in castor bean.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- inoculation of plants with bacteriae1
- Outcome
- chromium-induced toxicitye1
- Direction
- reducinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“The inoculation of plants with bacteria further boosted the plant growth parameters by improving photosynthesis and reducing the chromium-induced toxicity in the plants”
Claim · model-written summary
The authors propose combined citric acid and resistant bacteria for remediation and mitigating plant metal toxicity.
- Taxon
- castor bean plantsRicinus communise0
- Treatment
- combination of citric acid and metal-resistant bacteriae1
- Interactor
- metal-resistant bacteriae1symbiont
- Outcome
- heavy metal remediation and mediating the adverse effects of metal toxicity on plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric acid on castor bean plants”
e1“the combination of citric acid and metal-resistant bacteria could be a valuable technique for heavy metal remediation and mediating the adverse effects of metal toxicity on plants”
The same questions in other papers
citric acid · growth · Ricinus communis (castor bean)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
citric acid · physiology: oxidative · Ricinus communis (castor bean)Results agree
1 paper in the same direction as this paper
- positive
citric acid · physiology: photosynthesis · Ricinus communis (castor bean)Results agree
1 paper in the same direction as this paper
- positive
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.