Abstract
The possible mediatory role of salicylic acid (SA) in protecting plants from cadmium (Cd) toxicity was investigated. Increasing Cd concentrations caused a decrease in shoot and root biomass, chlorophyll (a, b) and carotenoids content, and photosynthetic rate in plants. Pretreatment with 500 μM SA did not change the plant growth, Cd accumulation, and water relation in Cd-stressed plants. Moreover, it can aggravate Cdinduced decline of photosynthetic rate in plants exposed to 25 mg Cd kg-1 soil, by reducing the stomatal conductance and pigment contents. These results suggest that exogenous SA may not improve the tolerance of the castor bean plants to the Cd toxicity under soil conditions.
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Claims 6
Claim · model-written summary
Increasing cadmium decreased shoot and root biomass in castor bean.
- Taxon
- Castor Bean
Ricinus communist0 - Treatment
- Increasing Cd concentrationse0
- Outcome
- shoot and root biomasse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing Cd concentrations caused a decrease in shoot and root biomass, chlorophyll (a, b) and carotenoids content, and photosynthetic rate in plants.”
t0“Castor Bean”
Claim · model-written summary
Increasing cadmium decreased chlorophyll and carotenoid content.
- Taxon
- Castor BeanRicinus communist0
- Treatment
- Increasing Cd concentrationse0
- Outcome
- chlorophyll (a, b) and carotenoids contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing Cd concentrations caused a decrease in shoot and root biomass, chlorophyll (a, b) and carotenoids content, and photosynthetic rate in plants.”
t0“Castor Bean”
Claim · model-written summary
Increasing cadmium decreased photosynthetic rate.
- Taxon
- Castor BeanRicinus communist0
- Treatment
- Increasing Cd concentrationse0
- Outcome
- photosynthetic ratee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing Cd concentrations caused a decrease in shoot and root biomass, chlorophyll (a, b) and carotenoids content, and photosynthetic rate in plants.”
t0“Castor Bean”
Claim · model-written summary
SA pretreatment did not change growth, Cd accumulation or water relation in Cd-stressed plants.
- Taxon
- Castor BeanRicinus communist0
- Treatment
- Pretreatment with 500 μM SAe0
- Outcome
- plant growth, Cd accumulation, and water relatione0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with 500 μM SA did not change the plant growth, Cd accumulation, and water relation in Cd-stressed plants.”
t0“Castor Bean”
Claim · model-written summary
SA aggravated the photosynthetic decline under 25 mg Cd kg-1 soil.
- Taxon
- Castor BeanRicinus communist0
- Treatment
- 25 mg Cd kg-1 soile0
- Outcome
- photosynthetic ratee0
- Direction
- aggravatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it can aggravate Cdinduced decline of photosynthetic rate in plants exposed to 25 mg Cd kg-1 soil, by reducing the stomatal conductance and pigment contents.”
t0“Castor Bean”
Claim · model-written summary
The authors concluded SA may not improve castor bean tolerance to soil cadmium.
- Taxon
- castor beanRicinus communise0
- Outcome
- may not improve the tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous SA may not improve the tolerance of the castor bean plants to the Cd toxicity under soil conditions.”
The same questions in other papers
salicylic acid · growth · Ricinus communis (castor bean)Positive and negative results
2 in the opposite direction
- positive
- positive
cadmium atom · growth · Ricinus communis (castor bean)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
4 papers more in this group
See all 8 papers →cadmium atom · physiology: photosynthesis · Ricinus communis (castor bean)Results agree
2 papers in the same direction as this paper
- negative
- negative
cadmium atom · physiology: pigments · Ricinus communis (castor bean)Results agree
2 papers in the same direction as this paper
- negative
- no effect
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.