Abstract
The adverse effects of cadmium on plants are accompanied by a limitation of photosynthesis, due to the production of reactive oxygen species, leading to oxidative damage to PSII and the disruption of key protein complexes involved in photosynthetic pathways. We investigated the effects of cadmium stress combined with high light in Arabidopsis thaliana, as dependent on the cadmium dose applied. The aim was to investigate the combined effect of the two stressors on photochemical processes with the hypothesis that Cd stress enhances the negative effect of the high light. The plants were treated with 0, 1, 10, and 50 mM Cd added as CdCl2 solution to soil (potted plants), and a high light stress. The highest dose (50 mM) induced a significant oxidative stress, reduced chlorophyll fluorescence parameters related to PSII functioning and increased energy dissipation mechanisms. Elevated Cd contents impaired the electron transport and limited PSII efficiency. OJIP analysis revealed a Cd-induced K- and L-band appearance documenting LHC-PSII limitation. The combination of Cd and high light stress resulted in the photoinhibition effects in PSII, i.e., a decrease in potential and effective yields of PSII.
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Claims 9
Claim · model-written summary
The highest Cd dose (50 mM) induced significant oxidative stress in Arabidopsis thaliana.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- highest dose (50 mM)e1
- Outcome
- oxidative stresse1
Not reportedComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e1“The highest dose (50 mM) induced a significant oxidative stress, reduced chlorophyll fluorescence parameters related to PSII functioning and increased energy dissipation mechanisms”
Claim · model-written summary
The highest Cd dose (50 mM) reduced chlorophyll fluorescence parameters related to PSII functioning in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- highest dose (50 mM)e1
- Outcome
- chlorophyll fluorescence parameters related to PSII functioninge1
- Direction
- reducede1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e1“The highest dose (50 mM) induced a significant oxidative stress, reduced chlorophyll fluorescence parameters related to PSII functioning and increased energy dissipation mechanisms”
Claim · model-written summary
The highest Cd dose (50 mM) increased energy dissipation mechanisms in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- highest dose (50 mM)e1
- Outcome
- energy dissipation mechanismse1
- Direction
- increasede1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e1“The highest dose (50 mM) induced a significant oxidative stress, reduced chlorophyll fluorescence parameters related to PSII functioning and increased energy dissipation mechanisms”
Claim · model-written summary
Elevated Cd contents impaired electron transport in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Elevated Cd contentse2
- Outcome
- electron transporte2
- Direction
- impairede2
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e2“Elevated Cd contents impaired the electron transport and limited PSII efficiency.”
Claim · model-written summary
Elevated Cd contents limited PSII efficiency in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Elevated Cd contentse2
- Outcome
- PSII efficiencye2
- Direction
- limitede2
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e2“Elevated Cd contents impaired the electron transport and limited PSII efficiency.”
Claim · model-written summary
Cd induced a K- and L-band appearance in OJIP analysis of Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Cde3
- Outcome
- K- and L-band appearancee3
Not reportedComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e3“OJIP analysis revealed a Cd-induced K- and L-band appearance documenting LHC-PSII limitation.”
Claim · model-written summary
The Cd-induced K- and L-band appearance documents LHC-PSII limitation in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Cde3
- Outcome
- LHC-PSII limitatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e3“OJIP analysis revealed a Cd-induced K- and L-band appearance documenting LHC-PSII limitation.”
Claim · model-written summary
The combination of Cd and high light stress resulted in photoinhibition effects in PSII.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- combination of Cd and high light stresse4
- Outcome
- photoinhibition effects in PSIIe4
Not reportedComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e4“The combination of Cd and high light stress resulted in the photoinhibition effects in PSII, i.e., a decrease in potential and effective yields of PSII.”
Claim · model-written summary
The combination of Cd and high light stress decreased the potential and effective yields of PSII in Arabidopsis thaliana.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- combination of Cd and high light stresse4
- Outcome
- potential and effective yields of PSIIe4
- Direction
- decreasee4
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Arabidopsis thaliana”
e4“The combination of Cd and high light stress resulted in the photoinhibition effects in PSII, i.e., a decrease in potential and effective yields of PSII.”
The same questions in other papers
cadmium atom · physiology: photosynthesis · Arabidopsis thaliana (thale cress)Results agree
2 papers in the same direction as this paper
- negative
- negative
light · physiology: photosynthesis · Arabidopsis thaliana (thale cress)Positive and negative results
18 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
26 papers more in this group
See all 30 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.