Abstract
ABSTRACT Barley seedlings (Hordeum vulgare L., cv. ‘Obzor’) were exposed for 5 d to 0, 5, 50, and 500 μM CdCl2 in nutrient solution. Cadmium (Cd) treatment caused a reduction of plant length, biomass, and leaf pigment content. The level of soluble leaf proteins was not changed significantly. SDS-PAGE revealed a slight diminution of Rubisco subunits and the appearance of a new low molecular mass band after exposure to 50 or 500 μM Cd. The antioxidative protection in leaves under Cd toxicity was studied in its complexity. Slightly diminished superoxide dismutase, enhanced catalase, and drastically increased total peroxidase activities were found at the highest Cd level. Ascorbate peroxidase activity was not changed significantly. The isoenzyme patterns of the antioxidant enzymes under study were only slightly altered without synthesis of new isoforms. The content of oxidized ascorbate increased during exposure to 50 and 500 μM Cd. The level of H2O2 rose only at 500 μM Cd without accumulation of malondialdehyde and oxidized proteins. Non-protein thiol groups increased up to four-fold after exposure to 50 and 500 μM Cd. The results are in accordance with the induction of mechanisms allowing an immobilization and sequestration of Cd in barley leaves, and suggest only minor effects via oxidative damage.
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Claims 13
Claim · model-written summary
plant length, biomass, and leaf pigment content showed reduction under cadmium exposure.
- Taxon
- Barley
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Hordeum vulgaret0 - Treatment
- Cadmium (Cd) treatmente0
- Outcome
- plant length, biomass, and leaf pigment contente0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Cadmium (Cd) treatment caused a reduction of plant length, biomass, and leaf pigment content.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
soluble leaf proteins showed not changed under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- soluble leaf proteinse0
- Direction
- not changede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of soluble leaf proteins was not changed significantly.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
Rubisco subunits showed diminution under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- Rubisco subunitse0
- Direction
- diminutione0
- Qualifier
- 50 or 500 μM Cde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SDS-PAGE revealed a slight diminution of Rubisco subunits and the appearance of a new low molecular mass band after exposure to 50 or 500 μM Cd.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
new low molecular mass band showed appearance under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- new low molecular mass bande0
- Direction
- appearancee0
- Qualifier
- 50 or 500 μM Cde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SDS-PAGE revealed a slight diminution of Rubisco subunits and the appearance of a new low molecular mass band after exposure to 50 or 500 μM Cd.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
superoxide dismutase showed diminished under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- superoxide dismutasee0
- Direction
- diminishede0
- Qualifier
- highest Cd levele0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Slightly diminished superoxide dismutase, enhanced catalase, and drastically increased total peroxidase activities were found at the highest Cd level.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
catalase showed enhanced under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- catalasee0
- Direction
- enhancede0
- Qualifier
- highest Cd levele0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Slightly diminished superoxide dismutase, enhanced catalase, and drastically increased total peroxidase activities were found at the highest Cd level.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
total peroxidase activities showed increased under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- total peroxidase activitiese0
- Direction
- increasede0
- Qualifier
- highest Cd levele0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Slightly diminished superoxide dismutase, enhanced catalase, and drastically increased total peroxidase activities were found at the highest Cd level.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
Ascorbate peroxidase activity showed not changed under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- Ascorbate peroxidase activitye0
- Direction
- not changede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ascorbate peroxidase activity was not changed significantly.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
isoenzyme patterns showed altered under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- isoenzyme patternse0
- Direction
- alterede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isoenzyme patterns of the antioxidant enzymes under study were only slightly altered without synthesis of new isoforms.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
content of oxidized ascorbate showed increased under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- content of oxidized ascorbatee0
- Direction
- increasede0
- Qualifier
- 50 and 500 μM Cde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of oxidized ascorbate increased during exposure to 50 and 500 μM Cd.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
level of H2O2 showed rose under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- level of H2O2e0
- Direction
- rosee0
- Qualifier
- 500 μM Cde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of H2O2 rose only at 500 μM Cd without accumulation of malondialdehyde and oxidized proteins.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
malondialdehyde and oxidized proteins showed without accumulation under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- malondialdehyde and oxidized proteinse0
- Direction
- without accumulatione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of H2O2 rose only at 500 μM Cd without accumulation of malondialdehyde and oxidized proteins.”
t0“Cadmium Stress in Barley”
Claim · model-written summary
Non-protein thiol groups showed increased under cadmium exposure.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- Non-protein thiol groupse0
- Direction
- increasede0
- Value
- four-folde0
- Qualifier
- 50 and 500 μM Cde0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Non-protein thiol groups increased up to four-fold after exposure to 50 and 500 μM Cd.”
t0“Cadmium Stress in Barley”
The same questions in other papers
cadmium atom · physiology: pigments · Hordeum vulgare (barley)Results differ
2 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- negative
5 papers more in this group
See all 9 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.