Abstract
The remediation of lead-contaminated areas poses a serious challenge to soil chemists because Pb has low solubility in soil. Thus, Pb phytostabilization is considered to be an attractive remediation technique. Castor bean (Ricinus communis) is an oilseed crop known for its tolerance to heavy metals, and our aim was to assess the early detection of Pb toxicity and the effects of Pb on the biomass, photosynthetic pigments, antioxidative enzyme activities, and total soluble proteins of this plant. Specimens were grown in a nutrient solution spiked with Pb concentrations of 25, 50, 100, 150, or 200 µmol L-1. A control without Pb was also grown. The results show that X-ray chlorophyll fluorescence is an efficient technique for the early detection of photosystem II alterations driven by Pb toxicity. Castor bean was tolerant to the Pb doses tested; plants presented no changes in photosynthetic pigments, defense enzyme activities, or total soluble proteins in leaves. Given its ability to tolerate and accumulate Pb in its roots, castor bean is a viable alternative for phytostabilization and phytoattenuation of lead-contaminated areas. It is also economically attractive for industrial and biofuel oil production while being used for remediation.
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Claims 6
Claim · model-written summary
X-ray chlorophyll fluorescence efficiently detected early photosystem II alterations from Pb toxicity.
- Taxon
- castor bean (Ricinus communis)
Ricinus communist0 - Treatment
- Pb toxicitye0
- Outcome
- early detection of photosystem II alterationse0
- Value
- efficiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that X-ray chlorophyll fluorescence is an efficient technique for the early detection of photosystem II alterations driven by Pb toxicity.”
t0“castor bean (Ricinus communis)”
Claim · model-written summary
Castor bean tolerated the tested Pb doses.
- Taxon
- Castor beanRicinus communise0
- Treatment
- Pb doses testede0
- Outcome
- tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Castor bean was tolerant to the Pb doses tested; plants presented no changes in photosynthetic pigments, defense enzyme activities, or total soluble proteins in leaves.”
Claim · model-written summary
Tested Pb doses did not change leaf photosynthetic pigments, defense enzyme activities or total soluble proteins.
- Taxon
- Castor beanRicinus communise0
- Organ / stage
- leavese0
- Treatment
- Pb doses testede0
- Outcome
- photosynthetic pigments, defense enzyme activities, or total soluble proteinse0
- Direction
- no changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Castor bean was tolerant to the Pb doses tested; plants presented no changes in photosynthetic pigments, defense enzyme activities, or total soluble proteins in leaves.”
Claim · model-written summary
Castor bean accumulated Pb in its roots.
- Taxon
- castor beanRicinus communise0
- Organ / stage
- rootse0
- Outcome
- accumulate Pbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Given its ability to tolerate and accumulate Pb in its roots, castor bean is a viable alternative for phytostabilization and phytoattenuation of lead-contaminated areas.”
Claim · model-written summary
Authors recommend castor bean for phytostabilization and phytoattenuation of lead-contaminated areas.
- Taxon
- castor beanRicinus communise0
- Outcome
- phytostabilization and phytoattenuation of lead-contaminated arease0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Given its ability to tolerate and accumulate Pb in its roots, castor bean is a viable alternative for phytostabilization and phytoattenuation of lead-contaminated areas.”
Claim · model-written summary
Castor bean was presented as economically attractive for oil production alongside remediation.
- Taxon
- castor beanRicinus communise1
- Outcome
- economically attractive for industrial and biofuel oil productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is also economically attractive for industrial and biofuel oil production while being used for remediation.”
e1“Castor bean (Ricinus communis)”
The same questions in other papers
lead atom · soil: biology · Ricinus communis (castor bean)Results differ
1 in the opposite direction
- 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.