Paper · 2010 · Journal of Nanjing University of Information Science & Technology

Impact of Pb,Cd on photosynthesis and quality of Raphanus Sativus L Var Radculus Pers under simulated acid rain

Mai Boru

10
claims
18
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

With pot experiments,the effects of heavy metal Pb and Cd treatment on the photosynthesis,nutritional quality and food safety of radish(Raphanus Sativus L.Var.Radculus Pers) under simulated acid rain of various acidity were studied.The results showed that,the synergistic effect of acid rain and heavy metals increased the harm effect on the leaves and photosynthesis.Under the AR+Pb and AR+Pb+Cd treatment,the soluble saccharide content increased and the reductive saccharide content decreased when the pH declines from 5.6 to 3.5;because the effect of Cd pollution exceeded the endurance capacity of radish,the soluble saccharide content and the reductive saccharide content decreased under the condition of acid rain;when pH≥4.5,pollution treatment declined the souble protein content and promoted free amino acids synthesis;when pH4.5,both soluble protein and free amino acids contents decreased.The combined pollution of acid rain and heavy metals could harm the food safety,increase the nitrate nitrogen and the accumulation amount of Pb and Cd in radish;the Pb pollution tended to promote the accumulation of nitric nitrogen;the accumulation amount of Cd was larger than Pb in radish.

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Claims 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combined acid rain and heavy metals increased damage to leaves and photosynthesis.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
acid rain and heavy metalse0
Outcome
harm effect on the leaves and photosynthesise0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“the synergistic effect of acid rain and heavy metals increased the harm effect on the leaves and photosynthesis.”

✓ located verbatim in the source · abstract, characters 256–368 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Under AR+Pb and AR+Pb+Cd, soluble saccharide content increased as pH fell from 5.6 to 3.5.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
AR+Pb and AR+Pb+Cd treatmente0
Outcome
soluble saccharide contente0
Direction
increasede0
Qualifier
pH declines from 5.6 to 3.5e0

Not reportedComparator

Verbatim

e0

“Under the AR+Pb and AR+Pb+Cd treatment,the soluble saccharide content increased and the reductive saccharide content decreased when the pH declines from 5.6 to 3.5”

✓ located verbatim in the source · abstract, characters 368–531 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Under AR+Pb and AR+Pb+Cd, reductive saccharide content decreased as pH fell from 5.6 to 3.5.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
AR+Pb and AR+Pb+Cd treatmente0
Outcome
reductive saccharide contente0
Direction
decreasede0
Qualifier
pH declines from 5.6 to 3.5e0

Not reportedComparator

Verbatim

e0

“Under the AR+Pb and AR+Pb+Cd treatment,the soluble saccharide content increased and the reductive saccharide content decreased when the pH declines from 5.6 to 3.5”

✓ located verbatim in the source · abstract, characters 368–531 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cd pollution under acid rain reduced soluble saccharide and reductive saccharide contents.

Treatment
Cd pollutione0
Outcome
soluble saccharide content and the reductive saccharide contente0
Direction
decreasede0
Qualifier
under the condition of acid raine0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

e0

“because the effect of Cd pollution exceeded the endurance capacity of radish,the soluble saccharide content and the reductive saccharide content decreased under the condition of acid rain”

✓ located verbatim in the source · abstract, characters 532–719 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At pH≥4.5, pollution decreased soluble protein content.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
pollution treatmente0
Outcome
souble protein contente0
Direction
declinede0
Qualifier
pH≥4.5e0

Not reportedComparator

Verbatim

e0

“when pH≥4.5,pollution treatment declined the souble protein content”

✓ located verbatim in the source · abstract, characters 720–787 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

At pH≥4.5, pollution promoted free amino acid synthesis.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
pollution treatmente0
Outcome
free amino acids synthesise0
Direction
promotede0
Qualifier
pH≥4.5e0

Not reportedComparator

Verbatim

e0

“when pH≥4.5,pollution treatment declined the souble protein content and promoted free amino acids synthesis”

✓ located verbatim in the source · abstract, characters 720–827 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At the stated pH4.5 condition, soluble protein and free amino acid contents decreased.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
pollution treatmente1
Outcome
soluble protein and free amino acids contentse0
Direction
decreasede0
Qualifier
pH4.5e0

Not reportedComparator

Verbatim

e0

“when pH4.5,both soluble protein and free amino acids contents decreased.”

✓ located verbatim in the source · abstract, characters 828–900 · show in text ↑
e1

“pollution treatment”

✓ located verbatim in the source · abstract, characters 732–751 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combined acid rain and heavy metals increased nitrate nitrogen and Pb and Cd accumulation in radish.

Treatment
acid rain and heavy metalse0
Outcome
nitrate nitrogen and the accumulation amount of Pb and Cde0
Direction
increasee0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The combined pollution of acid rain and heavy metals could harm the food safety,increase the nitrate nitrogen and the accumulation amount of Pb and Cd in radish”

✓ located verbatim in the source · abstract, characters 900–1060 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Pb pollution tended to promote nitric nitrogen accumulation.

Taxon
Raphanus Sativus L Var Radculus Perst0
Treatment
Pb pollutione0
Outcome
accumulation of nitric nitrogene0
Direction
promotee0

Not reportedComparator

Verbatim

e0

“the Pb pollution tended to promote the accumulation of nitric nitrogen”

✓ located verbatim in the source · abstract, characters 1061–1131 · show in text ↑
t0

“Raphanus Sativus L Var Radculus Pers”

✓ located verbatim in the source · title, characters 49–85 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cd accumulation exceeded Pb accumulation in radish.

Outcome
accumulation amount of Cde0
Direction
largere0
Comparator
Pbe0

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the accumulation amount of Cd was larger than Pb in radish.”

✓ located verbatim in the source · abstract, characters 1132–1191 · show in text ↑

cadmium atom · molecular: metabolites · Raphanus sativus (radish)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 →

heavy metal · nutrient: content · Raphanus sativus (radish)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

rainfall · nutrient: content · Raphanus sativus (radish)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. negative
  2. negative
See all 3 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.