Paper · 2022 · Agronomy

Foliar Spraying of Mannose Alleviates Cadmium Stress by Changing the Subcellular Distribution and Chemical Forms of Cadmium in Wheat Root

Xiang Zheng; Xue Cheng; Ni Pan; et al.

8
claims
14
verbatim quotes
10
citations
2
research areas
✓
Open access · cc-by

Abstract

Cadmium (Cd)-contaminated soil has been receiving increasing attention worldwide due to the great harm it causes via food-chain enrichment through crops such as wheat. However, there is little research regarding the effects of mannose (MAN) on plants in response to Cd stress. Hence, hydroponic and potted soil experiments were conducted to investigate the mitigation effects of MAN on wheat under Cd stress and the possible mechanism. Compared with Cd treatment alone, foliar spraying of 160 μM MAN significantly reduced the Cd accumulation in shoots and increased the Cd retention in roots. The content of hemicellulose was increased by MAN treatment, and the proportion of Cd retained by hemicellulose in the cell wall of roots was increased. Furthermore, 160 μM MAN significantly reduced the water-extracted and ethanol-extracted Cd in roots, which are easily transported to shoots. In potted soil experiments using Cd-contaminated soil, MAN reduced the Cd content in wheat grain by 26.3%, compared with the control. These findings indicate that foliar spraying of 160 μM MAN resulted in less Cd being transported from roots to shoots by increasing the Cd retention in the cell wall and changing the Cd chemical forms in roots, which promoted wheat growth and reduced the Cd concentration in wheat grain.

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 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mannose reduced cadmium accumulation in wheat shoots.

Organ / stage
shootse0
Treatment
foliar spraying of 160 μM MANe0
Outcome
Cd accumulatione0
Direction
reducede0
Comparator
Cd treatment alonee0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with Cd treatment alone, foliar spraying of 160 μM MAN significantly reduced the Cd accumulation in shoots”

✓ located verbatim in the source · abstract, characters 436–551 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mannose increased cadmium retention in wheat roots.

Organ / stage
rootse0
Treatment
foliar spraying of 160 μM MANe0
Outcome
Cd retentione0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar spraying of 160 μM MAN significantly reduced the Cd accumulation in shoots and increased the Cd retention in roots”

✓ located verbatim in the source · abstract, characters 470–591 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mannose increased hemicellulose content.

Treatment
MAN treatmente0
Outcome
content of hemicellulosee0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The content of hemicellulose was increased by MAN treatment”

✓ located verbatim in the source · abstract, characters 593–652 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mannose increased the proportion of root cell wall cadmium retained by hemicellulose.

Treatment
MAN treatmente0
Outcome
proportion of Cd retained by hemicellulose in the cell wall of rootse0
Direction
increasede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The content of hemicellulose was increased by MAN treatment, and the proportion of Cd retained by hemicellulose in the cell wall of roots was increased”

✓ located verbatim in the source · abstract, characters 593–744 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mannose reduced water-extracted cadmium in roots.

Organ / stage
rootse0
Treatment
160 μM MANe0
Outcome
water-extractede0
Direction
reducede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“160 μM MAN significantly reduced the water-extracted and ethanol-extracted Cd in roots”

✓ located verbatim in the source · abstract, characters 759–845 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mannose reduced ethanol-extracted cadmium in roots.

Organ / stage
rootse0
Treatment
160 μM MANe0
Outcome
ethanol-extracted Cde0
Direction
reducede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“160 μM MAN significantly reduced the water-extracted and ethanol-extracted Cd in roots”

✓ located verbatim in the source · abstract, characters 759–845 · show in text ↑
t0

“wheat”

✓ located after whitespace/quote normalisation · title, characters 127–132 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mannose reduced cadmium content in wheat grain by 26.3%.

Treatment
MANe0
Outcome
Cd content in wheat graine0
Direction
reducede0
Value
26.3%e0
Comparator
the controle0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“MAN reduced the Cd content in wheat grain by 26.3%, compared with the control”

✓ located verbatim in the source · abstract, characters 942–1019 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mannose promoted wheat growth under cadmium stress.

Treatment
foliar spraying of 160 μM MANe0
Outcome
wheat growthe0
Direction
promotede0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar spraying of 160 μM MAN resulted in less Cd being transported from roots to shoots by increasing the Cd retention in the cell wall and changing the Cd chemical forms in roots, which promoted wheat growth”

✓ located verbatim in the source · abstract, characters 1050–1259 · show in text ↑

mannose · growth · Triticum aestivum (wheat)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. negative
See all 2 papers →

mannose · nutrient: content · Triticum aestivum (wheat)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 →

application · nutrient: content · Triticum aestivum (wheat)Positive and negative results

275 papers: 257 positive, 18 negative or no effect

256 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

271 papers more in this group

See all 275 papers →

application · growth · Triticum aestivum (wheat)Positive and negative results

307 papers: 273 positive, 34 negative or no effect

272 papers in the same direction as this paper · 32 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

303 papers more in this group

See all 307 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.