Paper · 2003 · Biologia Plantarum

Water Stress Induced Proline Accumulation in Contrasting Wheat Genotypes as Affected by Calcium and Abscisic Acid

H. Nayyar; D.P. Walia

7
claims
14
verbatim quotes
214
citations
1
research areas
—
Not open access

Abstract

Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress were compared. Water stress was induced by polyethylene glycol (PEG-6000; osmotic potential -1.5 MPa) in the presence of 0.1 mM abscisic acid (ABA), 1 mM calcium chloride, 0.5 mM verapamil (Ca2+ channel blocker), 0.5 mM fluridone (inhibitor of ABA biosynthesis). While both the genotypes did not differ in total proline accumulation, rate of proline accumulation and utilization was higher in tolerant genotype C 306 as compared to susceptible genotype HD 2380. The treatment with ABA and CaCl2 caused further increase in proline accumulation during stress and reduced its mobilization during recovery. The membrane stability and elongation rate of roots was observed to be higher at ABA and calcium treatment in both the genotypes under stress. As was evident from inhibitor studies, the tolerant genotype was more responsive to ABA and the susceptible one to calcium.

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Claims 7

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Total proline accumulation did not differ between the two wheat genotypes under water stress.

Organ / stage
roots of 7-d-old seedlingse2
Treatment
water stresse2
Outcome
total proline accumulatione1
Direction
no_changeinferrede1

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

e1

“While both the genotypes did not differ in total proline accumulation”

✓ located verbatim in the source · abstract, characters 394–463 · show in text ↑
e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Rate of proline accumulation and utilization was higher in tolerant genotype C 306 than in susceptible genotype HD 2380.

Material
tolerant genotype C 306e3
Treatment
water stresse2
Outcome
rate of proline accumulation and utilizatione3
Direction
highere3
Comparator
susceptible genotype HD 2380e3

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e3

“rate of proline accumulation and utilization was higher in tolerant genotype C 306 as compared to susceptible genotype HD 2380”

✓ located verbatim in the source · abstract, characters 465–591 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA and CaCl2 treatment caused a further increase in proline accumulation during water stress.

Treatment
ABA and CaCl2e4
Outcome
proline accumulatione4
Direction
increasee4

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e4

“The treatment with ABA and CaCl2 caused further increase in proline accumulation during stress and reduced its mobilization during recovery”

✓ located verbatim in the source · abstract, characters 593–732 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

ABA and CaCl2 treatment reduced proline mobilization during recovery.

Treatment
ABA and CaCl2e4
Outcome
mobilization during recoverye4
Direction
reducede4

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e4

“The treatment with ABA and CaCl2 caused further increase in proline accumulation during stress and reduced its mobilization during recovery”

✓ located verbatim in the source · abstract, characters 593–732 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA and calcium treatment under stress gave higher membrane stability and root elongation rate in both wheat genotypes.

Organ / stage
rootse5
Treatment
ABA and calciume5
Outcome
membrane stability and elongation rate of rootse5
Direction
highere5

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e5

“The membrane stability and elongation rate of roots was observed to be higher at ABA and calcium treatment in both the genotypes under stress”

✓ located verbatim in the source · abstract, characters 734–875 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

In inhibitor studies the tolerant genotype was more responsive to ABA.

Material
tolerant genotypee6
Treatment
ABAe6
Outcome
responsive to ABAe6
Direction
higherinferrede6

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e6

“As was evident from inhibitor studies, the tolerant genotype was more responsive to ABA and the susceptible one to calcium”

✓ located verbatim in the source · abstract, characters 877–999 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

In inhibitor studies the susceptible genotype was more responsive to calcium.

Material
the susceptible onee6
Treatment
calciume6
Outcome
responsivee6
Direction
higherinferrede6

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

e2

“Proline accumulation and mobilization in roots of 7-d-old seedlings of wheat genotypes varying in sensitivity towards water stress”

✓ located verbatim in the source · abstract, characters 0–130 · show in text ↑
e6

“As was evident from inhibitor studies, the tolerant genotype was more responsive to ABA and the susceptible one to calcium”

✓ located verbatim in the source · abstract, characters 877–999 · show in text ↑

(+)-abscisic acid · physiology: oxidative · Triticum aestivum (wheat)Results differ

24 papers: 20 positive, 4 negative or no effect

19 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

20 papers more in this group

See all 24 papers →

calcium atom · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results

11 papers: 8 positive, 3 negative or no effect

7 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

7 papers more in this group

See all 11 papers →

calcium chloride dihydrate · physiology: osmolytes · 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 →

(+)-abscisic acid · physiology: osmolytes · Triticum aestivum (wheat)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

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.