Paper · 2019 · International Journal of Molecular Sciences

Exogenous Glycinebetaine Reduces Cadmium Uptake and Mitigates Cadmium Toxicity in Two Tobacco Genotypes Differing in Cadmium Tolerance

Xiaoyan He; Marvin E.A. Richmond; Darron V. Williams; et al.

10
claims
26
verbatim quotes
57
citations
1
research areas
✓
Open access · cc-by

Abstract

GB) upon 5 μM Cd stress. The foliar spray of GB markedly reduced Cd concentrations in plants and alleviated Cd-induced soil plant analysis development (SPAD) value, plant height and root length inhibition, with the mitigation effect being more obvious in Yunyan2. External GB markedly reduced Cd-induced malondialdehyde (MDA) accumulation, induced stomatal closure, ameliorated Cd-induced damages on leaf/root ultrastructure, and increased the chlorophyll content and fluorescence parameters of Fo, Fm, and Fv/Fm in both cultivars and Pn in Yunyan2. Exogenous GB counteracted Cd-induced alterations of certain antioxidant enzymes and nutrients uptake, e.g., the depressed Cd-induced increase of superoxide dismutase (SOD) and peroxidase (POD) activities, but significantly elevated the depressed catalase (CAT) and ascorbate peroxidase (APX) activities. The results indicate that alleviated Cd toxicity by GB application is related to the reduced Cd uptake and MDA accumulation, balanced nutrients and antioxidant enzyme activities, improved PSII, and integrated ultrastructure in tobacco plants.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar glycinebetaine reduced plant cadmium concentrations.

Treatment
foliar spray of GBe0
Outcome
Cd concentrations in plantse0
Direction
reducede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar glycinebetaine alleviated cadmium inhibition of SPAD, height and root length, especially in Yunyan2.

Material
Yunyan2e0
Treatment
GBe1
Outcome
soil plant analysis development (SPAD) value, plant height and root length inhibitione0
Direction
alleviatede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“alleviated Cd-induced soil plant analysis development (SPAD) value, plant height and root length inhibition, with the mitigation effect being more obvious in Yunyan2.”

✓ located verbatim in the source · abstract, characters 97–263 · show in text ↑
t0

“Two Tobacco Genotypes”

✓ located verbatim in the source · title, characters 82–103 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine reduced cadmium-induced malondialdehyde accumulation.

Treatment
GBe0
Outcome
Cd-induced malondialdehyde (MDA) accumulatione0
Direction
reducede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“External GB markedly reduced Cd-induced malondialdehyde (MDA) accumulation”

✓ located verbatim in the source · abstract, characters 264–338 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Glycinebetaine induced stomatal closure.

Treatment
GBe0
Outcome
stomatal closuree0

Not reportedComparatorDirection

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“External GB markedly reduced Cd-induced malondialdehyde (MDA) accumulation, induced stomatal closure”

✓ located verbatim in the source · abstract, characters 264–364 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine ameliorated cadmium damage to leaf and root ultrastructure.

Treatment
GBe1
Outcome
Cd-induced damages on leaf/root ultrastructuree0
Direction
amelioratede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“ameliorated Cd-induced damages on leaf/root ultrastructure”

✓ located verbatim in the source · abstract, characters 366–424 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine increased chlorophyll content and Fo, Fm and Fv/Fm in both cultivars.

Treatment
GBe1
Outcome
chlorophyll content and fluorescence parameters of Fo, Fm, and Fv/Fme0
Direction
increasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“increased the chlorophyll content and fluorescence parameters of Fo, Fm, and Fv/Fm in both cultivars”

✓ located verbatim in the source · abstract, characters 430–530 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine increased Pn in Yunyan2.

Material
Yunyan2e0
Treatment
GBe1
Outcome
Pne0
Direction
increasede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“increased the chlorophyll content and fluorescence parameters of Fo, Fm, and Fv/Fm in both cultivars and Pn in Yunyan2.”

✓ located verbatim in the source · abstract, characters 430–549 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine depressed the cadmium-induced increase of SOD and POD activities.

Treatment
GBe1
Outcome
superoxide dismutase (SOD) and peroxidase (POD) activitiese0
Direction
depressede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“the depressed Cd-induced increase of superoxide dismutase (SOD) and peroxidase (POD) activities”

✓ located verbatim in the source · abstract, characters 658–753 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Glycinebetaine elevated depressed CAT and APX activities.

Treatment
GBe1
Outcome
catalase (CAT) and ascorbate peroxidase (APX) activitiese0
Direction
elevatede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“significantly elevated the depressed catalase (CAT) and ascorbate peroxidase (APX) activities.”

✓ located verbatim in the source · abstract, characters 759–853 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑
e1

“The foliar spray of GB markedly reduced Cd concentrations in plants”

✓ located verbatim in the source · abstract, characters 25–92 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glycinebetaine counteracted cadmium-induced changes in nutrient uptake.

Treatment
GBe0
Outcome
nutrients uptakee0
Direction
counteractede0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Exogenous GB counteracted Cd-induced alterations of certain antioxidant enzymes and nutrients uptake”

✓ located verbatim in the source · abstract, characters 550–650 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 86–93 · show in text ↑

glycine betaine · physiology: oxidative · Nicotiana tabacum (tobacco)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive
See all 4 papers →

glycine betaine · physiology: photosynthesis · Nicotiana tabacum (tobacco)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

glycine betaine · physiology: antioxidant enzymes · Nicotiana tabacum (tobacco)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

glycine betaine · growth · Nicotiana tabacum (tobacco)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

application · nutrient: content · Nicotiana tabacum (tobacco)Results agree

13 papers: 13 positive, 0 negative or no effect

12 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 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.