Paper · 2003 · Journal of Experimental Botany

Characterization of an ethylene receptor homologue from wheat and its expression during leaf senescence

Q.-H. Ma

8
claims
16
verbatim quotes
32
citations
2
research areas
✓
Open access

Abstract

A wheat ethylene receptor homologue (W-er1) was isolated from a wheat stem cDNA library using the Arabidopsis ETR1 cDNA as a probe. The predicted amino acid sequence of W-er1 is over 70% similar to ERS1 from Arabidopsis and exhibits homology to bacterial two-component response regulators within the histidine kinase domain. Northern hybridization demonstrated that W-er1 was expressed in stem, leaf and root tissues. Treatments known to induce senescence of detached leaves including jasmonate, abscisic acid and wounding, increased the accumulation of W-er1 mRNA, while benzyladenine treatment did not. These data suggest that W-er1 may play a role in the process of leaf senescence.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

The predicted amino acid sequence of wheat W-er1 is over 70% similar to Arabidopsis ERS1.

Gene
W-er1e0
Outcome
predicted amino acid sequencee0
Value
over 70%e0
Comparator
ERS1 from Arabidopsise0

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 predicted amino acid sequence of W-er1 is over 70% similar to ERS1 from Arabidopsis and exhibits homology to bacterial two-component response regulators within the histidine kinase domain”

✓ located verbatim in the source · abstract, characters 132–323 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheat W-er1 exhibits homology to bacterial two-component response regulators within the histidine kinase domain.

Gene
W-er1e0
Outcome
homology to bacterial two-component response regulatorse0

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 predicted amino acid sequence of W-er1 is over 70% similar to ERS1 from Arabidopsis and exhibits homology to bacterial two-component response regulators within the histidine kinase domain”

✓ located verbatim in the source · abstract, characters 132–323 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

W-er1 was expressed in wheat stem, leaf and root tissues by Northern hybridization.

Organ / stage
stem, leaf and root tissuese0
Gene
W-er1e0
Outcome
expressede0

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

“Northern hybridization demonstrated that W-er1 was expressed in stem, leaf and root tissues”

✓ located verbatim in the source · abstract, characters 325–416 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Jasmonate increased W-er1 mRNA accumulation in detached wheat leaves.

Organ / stage
detached leavese0
Treatment
jasmonatee0
Gene
W-er1e0
Outcome
accumulation of W-er1 mRNAe0
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

“Treatments known to induce senescence of detached leaves including jasmonate, abscisic acid and wounding, increased the accumulation of W-er1 mRNA”

✓ located verbatim in the source · abstract, characters 418–564 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Abscisic acid increased W-er1 mRNA accumulation in detached wheat leaves.

Organ / stage
detached leavese0
Treatment
abscisic acide0
Gene
W-er1e0
Outcome
accumulation of W-er1 mRNAe0
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

“Treatments known to induce senescence of detached leaves including jasmonate, abscisic acid and wounding, increased the accumulation of W-er1 mRNA”

✓ located verbatim in the source · abstract, characters 418–564 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wounding increased W-er1 mRNA accumulation in detached wheat leaves.

Organ / stage
detached leavese0
Treatment
woundinge0
Gene
W-er1e0
Outcome
accumulation of W-er1 mRNAe0
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

“Treatments known to induce senescence of detached leaves including jasmonate, abscisic acid and wounding, increased the accumulation of W-er1 mRNA”

✓ located verbatim in the source · abstract, characters 418–564 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Benzyladenine treatment did not increase W-er1 mRNA accumulation.

Treatment
benzyladenine treatmente0
Gene
W-er1e0
Outcome
accumulation of W-er1 mRNAe0
Direction
did note0

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

“increased the accumulation of W-er1 mRNA, while benzyladenine treatment did not”

✓ located verbatim in the source · abstract, characters 524–603 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

The authors suggest that W-er1 may play a role in leaf senescence.

Gene
W-er1e0
Outcome
leaf senescencee0

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 data suggest that W-er1 may play a role in the process of leaf senescence”

✓ located verbatim in the source · abstract, characters 605–684 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 56–61 · show in text ↑

N-benzyladenine · molecular: expression · Triticum aestivum (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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

jasmonic acid · molecular: expression · Triticum aestivum (wheat)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

mechanical · molecular: expression · Triticum aestivum (wheat)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

3 papers more in this group

See all 7 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.