Abstract
The changes in growth, gas exchange, and stable carbon isotope value (δ13C) in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions. Compared to the control, plant height and biomass, photosynthesis rates (Pn), water-use efficiency (WUE), and stomatal conductance (Gs) decreased significantly (P<0.05) exposed to cadmium (Cd) or UV-B radiation and combination. Leaf stable carbon isotope composition (δ13C values) decreased by Cd or UV-B radiation alone and in combination, δ13C were significantly correlated with changes in Pn, WUE and biomass. But Cd and UV-B in combination did not cause greater changes compared to Cd or UV-B radiation alone in many parameters. These results suggested that there was relatively little interaction of the two stresses. δ13C values may provide a reliable indication for growth, WUE, Pn or biomass of soybean seedlings when exposed to UV-B radiation and cadmium pollution.
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Claims 6
Claim · model-written summary
Cadmium or UV-B radiation, alone or combined, significantly decreased soybean plant height and biomass compared with the control.
- Taxon
- soybean
Glycine maxe0 - Material
- Longdou No.1e0
- Treatment
- cadmium (Cd) or UV-B radiation and combinatione1
- Outcome
- plant height and biomasse1
- Direction
- decreasede1
- Qualifier
- P<0.05e1
- Comparator
- controle1
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions”
e1“Compared to the control, plant height and biomass, photosynthesis rates (Pn), water-use efficiency (WUE), and stomatal conductance (Gs) decreased significantly (P<0.05) exposed to cadmium (Cd) or UV-B radiation and combination”
Claim · model-written summary
Cadmium or UV-B radiation, alone or combined, significantly decreased soybean photosynthesis rate, water-use efficiency and stomatal conductance compared with the control.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cadmium (Cd) or UV-B radiation and combinatione1
- Outcome
- photosynthesis rates (Pn), water-use efficiency (WUE), and stomatal conductance (Gs)e1
- Direction
- decreasede1
- Qualifier
- P<0.05e1
- Comparator
- controle1
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions”
e1“Compared to the control, plant height and biomass, photosynthesis rates (Pn), water-use efficiency (WUE), and stomatal conductance (Gs) decreased significantly (P<0.05) exposed to cadmium (Cd) or UV-B radiation and combination”
Claim · model-written summary
Leaf delta13C of soybean decreased under cadmium or UV-B radiation alone and in combination.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Cd or UV-B radiation alone and in combinatione2
- Outcome
- Leaf stable carbon isotope composition (δ13C values)e2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions”
e2“Leaf stable carbon isotope composition (δ13C values) decreased by Cd or UV-B radiation alone and in combination”
Claim · model-written summary
Combined cadmium and UV-B did not cause greater changes in soybean than either stress alone in many parameters.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Cd and UV-B in combinatione4
- Outcome
- greater changese4
- Direction
- did not cause greater changese4
- Comparator
- Cd or UV-B radiation alonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions”
e4“But Cd and UV-B in combination did not cause greater changes compared to Cd or UV-B radiation alone in many parameters”
Claim · model-written summary
Leaf delta13C of soybean was significantly correlated with changes in Pn, WUE and biomass.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- Leafe2
- Outcome
- δ13Ce3
- Qualifier
- changes in Pn, WUE and biomasse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soybean seedlings (Glycine max L. Merr. cv. Longdou No.1) exposed to a 11.2 kJ m-2 day-1 biologically effective UV-B radiation (UV-BBE, 280-315 nm) and 50 mg CdCl2 kg-1 vermicular treatment, either alone or in combination were investigated under greenhouse conditions”
e2“Leaf stable carbon isotope composition (δ13C values) decreased by Cd or UV-B radiation alone and in combination”
e3“δ13C were significantly correlated with changes in Pn, WUE and biomass”
Claim · model-written summary
The authors suggest delta13C may serve as a reliable indicator of growth, WUE, Pn or biomass in soybean under UV-B and cadmium stress.
- Taxon
- soybean seedlingsGlycine maxe5
- Treatment
- UV-B radiation and cadmium pollutione5
- Outcome
- reliable indication for growth, WUE, Pn or biomasse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“δ13C values may provide a reliable indication for growth, WUE, Pn or biomass of soybean seedlings when exposed to UV-B radiation and cadmium pollution”
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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.