Paper · 1996 · Journal of Plant Nutrition

Phytosiderophore release does not relate well with zinc efficiency in different bread wheat genotypes

B. Erenoglu; I. Cakmak; H. Marschner; et al.

13
claims
17
verbatim quotes
67
citations
2
research areas
—
Not open access

Abstract

Abstract Using six bread wheat genotypes (Triticum aesttvum L. cvs. Dagdas‐94, Gerek‐79, BDME‐10, SBVD 1–21, SBVD 2–22 and Partizanka Niska) and one durum wheat genotype (Triticum durum L. cv. Kunduru‐1149) experiments were carried out to study the relationship between the rate of phytosiderophore release and susceptibility of genotypes to zinc (Zn) deficiency during 15 days of growth in nutrient solution with (1 μM Zn) and without Zn supply. Among the genotypes, Dagdas‐94 and Gerek‐79 are Zn efficient, while the others are highly susceptible to Zn deficiency, when grown on severely Zn deficient calcareous soils in Turkey. Similar to the field observations, visual Zn deficiency symptoms, such as whitish‐brown lesions on leaf blades occurred first and severely in durum wheat Kunduru‐1149 and bread wheats Partizanka Niska, BDME‐10, SBVD 1–21 and SBVD 2–22. Visual Zn deficiency symptoms were less severe in the bread wheats Gerek‐79 and particularly Dagdas‐94. These genotypic differences in susceptibility to Zn deficiency were not related to the concentrations of Zn in shoots or roots. All bread wheat genotypes contained similar Zn concentration in the dry matter. In all genotypes supplied adequately with Zn, the rate of phytosiderophore release was very low and did not exceed 0.5 μmol/48 plants/ 3 h. However, under Zn deficiency the release of phytosiderophores increased in all bread wheat genotypes, but not in the durum wheat genotype. The corresponding rates of phytosiderophore release in Zn deficient durum wheat genotype were 1.2 umol and in Zn deficient bread wheat genotypes ranged between 8.6 μmol for Partizanka Niska to 17.4 umol for SBVD 2–22. In Dagdas‐94, the most Zn efficient genotype, the highest rate of phytosiderophore release was 14.8 umol. The results indicate that the release rate of phytosiderophores does not relate well with the susceptibility of bread wheat genotypes to Zn deficiency. Root uptake and root‐to‐shoot transport of Zn and particularly internal utilization of Zn may be more important mechanisms involved in expression of Zn efficiency in bread wheat genotypes than release of phytosiderophores.

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Claims 13

Observationobservedoriginal resultmeasured

Claim · model-written summary

Dagdas-94 and Gerek-79 were zinc efficient, whereas other genotypes were susceptible.

Taxon
bread wheatTriticum aestivumt0
Material
Dagdas‐94 and Gerek‐79e0
Outcome
Zn efficiente0

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

“Dagdas‐94 and Gerek‐79 are Zn efficient, while the others are highly susceptible to Zn deficiency”

✓ located verbatim in the source · abstract, characters 468–565 · show in text ↑
t0

“bread wheat”

✓ located verbatim in the source · title, characters 80–91 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Zinc deficiency symptoms occurred first and severely in Kunduru-1149 and four bread wheat genotypes.

Material
Kunduru‐1149e0
Outcome
visual Zn deficiency symptomse0
Direction
severelye0

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“visual Zn deficiency symptoms, such as whitish‐brown lesions on leaf blades occurred first and severely in durum wheat Kunduru‐1149 and bread wheats Partizanka Niska, BDME‐10, SBVD 1–21 and SBVD 2–22”

✓ located verbatim in the source · abstract, characters 666–865 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Zinc deficiency symptoms were less severe in Gerek-79 and especially Dagdas-94.

Taxon
bread wheatsTriticum aestivume0
Material
Gerek‐79 and particularly Dagdas‐94e0
Outcome
Visual Zn deficiency symptomse0
Direction
less severee0

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

“Visual Zn deficiency symptoms were less severe in the bread wheats Gerek‐79 and particularly Dagdas‐94”

✓ located verbatim in the source · abstract, characters 867–969 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Susceptibility differences were unrelated to shoot or root zinc concentration.

Taxon
bread wheatTriticum aestivumt0
Organ / stage
shoots or rootse0
Compound
Zne0
Outcome
susceptibility to Zn deficiencye0

Not reportedDirection

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

“These genotypic differences in susceptibility to Zn deficiency were not related to the concentrations of Zn in shoots or roots”

✓ located verbatim in the source · abstract, characters 971–1097 · show in text ↑
t0

“bread wheat”

✓ located verbatim in the source · title, characters 80–91 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

All bread wheat genotypes had similar dry-matter zinc concentration.

Taxon
bread wheatTriticum aestivume0
Outcome
Zn concentration in the dry mattere0
Direction
similare0

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

“All bread wheat genotypes contained similar Zn concentration in the dry matter”

✓ located verbatim in the source · abstract, characters 1099–1177 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

With adequate zinc, phytosiderophore release was very low.

Taxon
bread wheatTriticum aestivumt0
Treatment
supplied adequately with Zne0
Outcome
rate of phytosiderophore releasee0
Direction
very lowe0
Value
0.5 μmol/48 plants/ 3 he0

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

“In all genotypes supplied adequately with Zn, the rate of phytosiderophore release was very low and did not exceed 0.5 μmol/48 plants/ 3 h”

✓ located verbatim in the source · abstract, characters 1179–1317 · show in text ↑
t0

“bread wheat”

✓ located verbatim in the source · title, characters 80–91 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Zinc deficiency increased phytosiderophore release in all bread wheat genotypes.

Taxon
bread wheatTriticum aestivume0
Treatment
Zn deficiencye0
Outcome
release of phytosiderophorese0
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

“under Zn deficiency the release of phytosiderophores increased in all bread wheat genotypes, but not in the durum wheat genotype”

✓ located verbatim in the source · abstract, characters 1328–1456 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Zinc deficiency did not increase phytosiderophore release in durum wheat.

Treatment
Zn deficiencye0
Outcome
release of phytosiderophorese0
Direction
but note0

Not reportedComparator

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“under Zn deficiency the release of phytosiderophores increased in all bread wheat genotypes, but not in the durum wheat genotype”

✓ located verbatim in the source · abstract, characters 1328–1456 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Zinc-deficient durum wheat released 1.2 umol phytosiderophores.

Outcome
rates of phytosiderophore releasee0
Value
1.2 umole0

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“rates of phytosiderophore release in Zn deficient durum wheat genotype were 1.2 umol”

✓ located verbatim in the source · abstract, characters 1476–1560 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Zinc-deficient bread wheat release ranged from 8.6 to 17.4 umol.

Taxon
bread wheatTriticum aestivume0
Material
Partizanka Niskae0
Outcome
Zn deficient bread wheat genotypese0
Value
8.6 μmole0

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

“in Zn deficient bread wheat genotypes ranged between 8.6 μmol for Partizanka Niska to 17.4 umol for SBVD 2–22”

✓ located verbatim in the source · abstract, characters 1565–1674 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dagdas-94 had a peak phytosiderophore release rate of 14.8 umol.

Taxon
bread wheatTriticum aestivumt0
Material
Dagdas‐94e0
Outcome
rate of phytosiderophore releasee0
Direction
higheste0
Value
14.8 umole0

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

“In Dagdas‐94, the most Zn efficient genotype, the highest rate of phytosiderophore release was 14.8 umol”

✓ located verbatim in the source · abstract, characters 1676–1780 · show in text ↑
t0

“bread wheat”

✓ located verbatim in the source · title, characters 80–91 · show in text ↑
Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Phytosiderophore release did not relate well to susceptibility to zinc deficiency.

Taxon
bread wheatTriticum aestivume0
Treatment
release rate of phytosiderophorese0
Outcome
susceptibility of bread wheat genotypes to Zn deficiencye0

Not reportedOrgan / stageDirection

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

“release rate of phytosiderophores does not relate well with the susceptibility of bread wheat genotypes to Zn deficiency”

✓ located verbatim in the source · abstract, characters 1812–1932 · show in text ↑
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

Zinc uptake, transport and internal utilization may be more important to zinc efficiency.

Taxon
bread wheatTriticum aestivume0
Outcome
Zn efficiencye0
Qualifier
internal utilization of Zne0

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

“Root uptake and root‐to‐shoot transport of Zn and particularly internal utilization of Zn may be more important mechanisms involved in expression of Zn efficiency in bread wheat genotypes than release of phytosiderophores”

✓ located verbatim in the source · abstract, characters 1934–2155 · show in text ↑

zinc atom · molecular: metabolites · Triticum turgidum (rivet wheat)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

1 paper in the same direction as this paper · 4 in the opposite direction

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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 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.