Paper · 2006 · He'nan nongye kexue

The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings

Qiming Wang

7
claims
12
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

The effects of single or combined stress of heavy metal Pb~(2+),Cd~(2+) on the physiological and biochemical parameters of soybean seedlings were studied by water cultivation.The results showed that the content of chlorophyll and the ratio of chlorophyll a/b of soybean seedlings were decreased apparently with the enhancement of Pb~(2+),Cd~(2+) single or their combined stresses,the membrane permeability increased siginificantly,the activities of root subsystems were inhibited,but the low Pb~(2+) concentrationim proved the activities of root subsystems slightly.Pb~(2+) and Cd~(2+) combined stress showed stronger toxic harm than single stress did and the toxic harm of Cd~(2+) was stronger than that of Pb~(2+).

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Claims 7

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing lead, cadmium or combined stress decreased chlorophyll content.

Taxon
soybean seedlingsGlycine maxe0
Treatment
Pb~(2+),Cd~(2+) single or their combined stressese0
Outcome
content of chlorophylle0
Direction
decreased apparentlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“the content of chlorophyll and the ratio of chlorophyll a/b of soybean seedlings were decreased apparently with the enhancement of Pb~(2+),Cd~(2+) single or their combined stresses”

✓ located verbatim in the source · abstract, characters 199–379 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing lead, cadmium or combined stress decreased the chlorophyll a/b ratio.

Taxon
soybean seedlingsGlycine maxe0
Treatment
Pb~(2+),Cd~(2+) single or their combined stressese0
Outcome
ratio of chlorophyll a/be0
Direction
decreased apparentlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“the content of chlorophyll and the ratio of chlorophyll a/b of soybean seedlings were decreased apparently with the enhancement of Pb~(2+),Cd~(2+) single or their combined stresses”

✓ located verbatim in the source · abstract, characters 199–379 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Heavy metal stress significantly increased membrane permeability.

Taxon
soybean seedlingsGlycine maxt0
Treatment
Pb~(2+)、Cd~(2+) and their Combined Stresst0
Outcome
membrane permeabilitye0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“the membrane permeability increased siginificantly”

✓ located verbatim in the source · abstract, characters 380–430 · show in text ↑
t0

“The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings”

✓ located verbatim in the source · title, characters 0–121 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Heavy metal stress inhibited root subsystem activities.

Taxon
Soybean SeedlingsGlycine maxt0
Treatment
Pb~(2+)、Cd~(2+) and their Combined Stresst0
Outcome
activities of root subsystemse0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“the activities of root subsystems were inhibited”

✓ located verbatim in the source · abstract, characters 431–479 · show in text ↑
t0

“The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings”

✓ located verbatim in the source · title, characters 0–121 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low lead concentration slightly improved root subsystem activities.

Taxon
Soybean SeedlingsGlycine maxt0
Treatment
low Pb~(2+) concentratione0
Outcome
activities of root subsystemse0
Direction
provede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“low Pb~(2+) concentrationim proved the activities of root subsystems slightly”

✓ located verbatim in the source · abstract, characters 488–565 · show in text ↑
t0

“The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings”

✓ located verbatim in the source · title, characters 0–121 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combined lead and cadmium stress was more toxic than single stress.

Taxon
Soybean SeedlingsGlycine maxt0
Treatment
Pb~(2+) and Cd~(2+) combined stresse0
Outcome
toxic harme0
Direction
strongere0
Comparator
single stresse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Pb~(2+) and Cd~(2+) combined stress showed stronger toxic harm than single stress did”

✓ located verbatim in the source · abstract, characters 566–651 · show in text ↑
t0

“The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings”

✓ located verbatim in the source · title, characters 0–121 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cadmium stress was more toxic than lead stress.

Taxon
Soybean SeedlingsGlycine maxt0
Treatment
Cd~(2+)e0
Outcome
toxic harme0
Direction
strongere0
Comparator
Pb~(2+)e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“the toxic harm of Cd~(2+) was stronger than that of Pb~(2+)”

✓ located verbatim in the source · abstract, characters 656–715 · show in text ↑
t0

“The Effects of Pb~(2+)、Cd~(2+) and their Combined Stress on Physiological and Biochemical Parameters of Soybean Seedlings”

✓ located verbatim in the source · title, characters 0–121 · show in text ↑

cadmium atom · physiology: oxidative · Glycine max (soybean)Results differ

24 papers: 0 positive, 24 negative or no effect

23 papers in the same direction as this paper

  1. negative
  2. no effect
  3. negative

20 papers more in this group

See all 24 papers →

cadmium atom · physiology: pigments · Glycine max (soybean)Positive and negative results

11 papers: 1 positive, 10 negative or no effect

9 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. negative

7 papers more in this group

See all 11 papers →

lead atom · physiology: pigments · Glycine max (soybean)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. negative
  2. no effect
See all 3 papers →

lead atom · physiology: oxidative · Glycine max (soybean)Results agree

4 papers: 0 positive, 4 negative or no effect

3 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative
See all 4 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.