Paper · 1997 · Journal of Experimental Botany

Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes

Zdenko Rengel; Matthew S. Wheal

9
claims
18
verbatim quotes
34
citations
2
research areas
✓
Open access

Abstract

Two Triticum aestivum (Excalibur and Gatcher) and one Triticum turgidum conv. durum (Durati) genotypes (differing in the ability to grow and yield well in environments with low Zn availability) were grown in chelatebuffered, complete nutrient solutions providing either deficient or sufficient Zn supply and supplemented with suiphonylurea herbicide chlorsulfuron [2-chloro-N-(((4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino)-carbonyl)-benzenesulphonamide] at 0 or 4 mg m-3. Compared to Zn-sufficient roots, plants grown under Zn deficiency had thicker roots on average, with a shorter length of the fine roots (diameters ≤0.2 mm). Chlorsulfuron decreased growth of roots in the ≤0.2 mm diameter class during the first 4 d of exposure (14-18-d-old plants) and completely inhibited growth of these roots for the remaining 6 d of exposure. The Zn-efficient genotype Excalibur maintained a longer length of roots with diameters ≤0.2 mm and had a greater root surface area than the other two, non-efficient genotypes regardless of plant age or Zn nutrition. Chlorsulfuron tended to decrease net uptake of Cu and Mn in all three genotypes, and net uptake of Zn in Gatcher and Durati, regardless of the duration of exposure. In contrast, 6–10 d of exposure to chlorsulfuron were required for a reduction in net Zn uptake by Zn-efficient Excalibur. In conclusion, chlorsulfuron affects the growth of fine roots and interferes with micronutrient uptake per unit of wheat root. The inherent trait of having a longer length of the roots with diameters ≤0.2 mm lessens the deleterious impact of chlorsulfuron on root growth and micronutrient uptake in Zn-efficient Excalibur compared to the other two wheat genotypes.

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Claims 9

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Zinc deficiency increased average root thickness.

Taxon
wheat genotypesTriticum aestivumt0
Treatment
Zn deficiencye0
Outcome
rootse0
Direction
thickere0
Comparator
Zn-sufficient rootse0

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 to Zn-sufficient roots, plants grown under Zn deficiency had thicker roots on average”

✓ located verbatim in the source · abstract, characters 473–567 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Zinc deficiency shortened fine roots.

Taxon
wheat genotypesTriticum aestivumt0
Treatment
Zn deficiencye0
Outcome
length of the fine rootse0
Direction
shortere0
Qualifier
diameters ≤0.2 mme0
Comparator
Zn-sufficient rootse0

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 to Zn-sufficient roots, plants grown under Zn deficiency had thicker roots on average, with a shorter length of the fine roots (diameters ≤0.2 mm).”

✓ located verbatim in the source · abstract, characters 473–629 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorsulfuron reduced fine root growth in the first four days.

Taxon
wheat genotypesTriticum aestivumt0
Treatment
Chlorsulfuront0
Outcome
growth of rootse0
Direction
decreasede0
Qualifier
first 4 d of exposuree0

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

“Chlorsulfuron decreased growth of roots in the ≤0.2 mm diameter class during the first 4 d of exposure”

✓ located verbatim in the source · abstract, characters 630–732 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorsulfuron completely inhibited fine root growth during the remaining six days.

Taxon
wheat genotypesTriticum aestivumt0
Treatment
Chlorsulfuront0
Outcome
growth of these rootse0
Direction
completely inhibitede0
Qualifier
remaining 6 d of exposuree0

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

“completely inhibited growth of these roots for the remaining 6 d of exposure.”

✓ located verbatim in the source · abstract, characters 758–835 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Excalibur had longer fine roots than the other genotypes.

Taxon
wheat genotypesTriticum aestivumt0
Material
Excalibure0
Outcome
length of rootse0
Direction
longere0
Comparator
other two, non-efficient genotypese0

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 Zn-efficient genotype Excalibur maintained a longer length of roots with diameters ≤0.2 mm and had a greater root surface area than the other two, non-efficient genotypes regardless of plant age or Zn nutrition.”

✓ located verbatim in the source · abstract, characters 836–1051 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Excalibur had greater root surface area than the other genotypes.

Taxon
wheat genotypesTriticum aestivumt0
Material
Excalibure0
Outcome
root surface areae0
Direction
greatere0
Comparator
other two, non-efficient genotypese0

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 Zn-efficient genotype Excalibur maintained a longer length of roots with diameters ≤0.2 mm and had a greater root surface area than the other two, non-efficient genotypes regardless of plant age or Zn nutrition.”

✓ located verbatim in the source · abstract, characters 836–1051 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorsulfuron tended to reduce copper and manganese uptake in all genotypes.

Taxon
wheat genotypesTriticum aestivumt0
Treatment
Chlorsulfuront0
Outcome
net uptake of Cu and Mne0
Direction
decreaset0
Qualifier
all three genotypese0

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

“Chlorsulfuron tended to decrease net uptake of Cu and Mn in all three genotypes”

✓ located verbatim in the source · abstract, characters 1052–1131 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Chlorsulfuron tended to reduce zinc uptake in Gatcher and Durati.

Taxon
wheat genotypesTriticum aestivumt0
Material
Gatcher and Duratie0
Treatment
Chlorsulfuront0
Outcome
net uptake of Zne0
Direction
decreaset0
Qualifier
regardless of the duration of exposuree0

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

“net uptake of Zn in Gatcher and Durati, regardless of the duration of exposure.”

✓ located verbatim in the source · abstract, characters 1137–1216 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Excalibur zinc uptake fell only after six to ten days of chlorsulfuron.

Taxon
wheat genotypesTriticum aestivumt0
Material
Excalibure0
Treatment
chlorsulfurone0
Outcome
net Zn uptakee0
Direction
reductione0
Qualifier
6–10 d of exposuree0

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

“6–10 d of exposure to chlorsulfuron were required for a reduction in net Zn uptake by Zn-efficient Excalibur.”

✓ located verbatim in the source · abstract, characters 1230–1339 · show in text ↑
t0

“Herbicide chlorsulfuron decreases growth of fine roots and micronutrient uptake in wheat genotypes”

✓ located verbatim in the source · title, characters 0–98 · show in text ↑

chlorsulfuron · growth · Triticum aestivum (wheat)Results differ

11 papers: 2 positive, 9 negative or no effect

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

  1. positive
  2. negative
  3. negative

7 papers more in this group

See all 11 papers →

zinc atom · growth · Triticum aestivum (wheat)Results differ

200 papers: 155 positive, 45 negative or no effect

154 papers in the same direction as this paper · 43 in the opposite direction · 2 reporting no difference from an alternative

This paper is about lacking the nutrient, so it counts the other way round here.

  1. negative
  2. no effect
  3. no effect
    Wheat plants with low Mn or low Zn supply showed no growth differences from controls at the three harvests.

    Distribution and remobilization of Zn and Mn during grain development in wheat · 1994 · compared with controls (sufficient Zn and Mn)

    Opposite directionAbout lacking this nutrient, so it counts the other way round

196 papers more in this group

See all 200 papers →

chlorsulfuron · nutrient: content · Triticum aestivum (wheat)Results agree

8 papers: 0 positive, 8 negative or no effect

7 papers in the same direction as this paper

  1. no effect
  2. negative
  3. negative

4 papers more in this group

See all 8 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.