Paper · 2004 · Molecules and Cells

Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice

Chan-Ho Park; Soonok Kim; Ju-Young Park; et al.

14
claims
28
verbatim quotes
38
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

A cDNA encoding a class III chitinase (Oschib1) was isolated from a cDNA library constructed from rice leaves infected with the blast fungus Magnaporthe grisea. The cDNA contains an open reading frame of 861 nucleotides encoding 286 amino acid residues with a pI of 5.06. The deduced amino acid sequence of Oschibl has a high level of similarity with class IIIb chitinases of Gladiolus gandavensis (46%) and Tulipa bakeri (49%). A high level of Oschibl mRNA was detected after inoculation with M. grisea or Xanthomonas oryzae pv. oryzae. Expression of Oschib1 was induced more rapidly when an avirulent strain of M. grisea was inoculated (incompatible interaction) than when a virulent strain was used (compatible interaction). Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4. The induction patterns of Oschibl expression suggest that Oschib1 may be involved in defense response against pathogen infections and may be classified as a member of pathogenesis-related protein 8 in rice.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 14

Observationobservedoriginal resultmeasured

Claim · model-written summary

A cDNA encoding class III chitinase Oschib1 was isolated from infected rice leaves.

Organ / stage
rice leavese0
Interactor
Magnaporthe griseaPyricularia griseae0pathogen
Gene
Oschib1e0
Outcome
A cDNA encoding a class III chitinase (Oschib1) was isolatede0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Pyricularia grisea
Pyricularia grisea · InteractorPublic domain · Wikimedia Commons ↗

Verbatim

e0

“A cDNA encoding a class III chitinase (Oschib1) was isolated from a cDNA library constructed from rice leaves infected with the blast fungus Magnaporthe grisea.”

✓ located verbatim in the source · abstract, characters 0–160 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The cDNA has an 861 nucleotide open reading frame encoding 286 amino acid residues.

Outcome
open reading framee0
Value
861 nucleotidese0
Qualifier
286 amino acid residues with a pI of 5.06e0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The cDNA contains an open reading frame of 861 nucleotides encoding 286 amino acid residues with a pI of 5.06.”

✓ located verbatim in the source · abstract, characters 161–271 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Oschibl sequence similarity to Gladiolus gandavensis class IIIb chitinase was 46%.

Gene
Oschible0
Outcome
similaritye0
Value
46%e0
Comparator
Gladiolus gandavensise0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The deduced amino acid sequence of Oschibl has a high level of similarity with class IIIb chitinases of Gladiolus gandavensis (46%) and Tulipa bakeri (49%).”

✓ located verbatim in the source · abstract, characters 272–428 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Oschibl sequence similarity to Tulipa bakeri class IIIb chitinase was 49%.

Gene
Oschible0
Outcome
similaritye0
Value
49%e0
Comparator
Tulipa bakerie0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The deduced amino acid sequence of Oschibl has a high level of similarity with class IIIb chitinases of Gladiolus gandavensis (46%) and Tulipa bakeri (49%).”

✓ located verbatim in the source · abstract, characters 272–428 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oschibl mRNA reached a high level after inoculation with M. grisea.

Treatment
inoculation with M. griseae0
Interactor
M. griseaPyricularia griseae0pathogen
Gene
Oschible0
Outcome
Oschibl mRNAe0
Direction
high levele0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Pyricularia grisea
Pyricularia grisea · InteractorPublic domain · Wikimedia Commons ↗

Verbatim

e0

“A high level of Oschibl mRNA was detected after inoculation with M. grisea or Xanthomonas oryzae pv. oryzae.”

✓ located verbatim in the source · abstract, characters 429–537 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oschibl mRNA reached a high level after inoculation with Xanthomonas oryzae pv. oryzae.

Treatment
Xanthomonas oryzae pv. oryzaee0
Interactor
Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaee0pathogen
Gene
Oschible0
Outcome
Oschibl mRNAe0
Direction
high levele0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Xanthomonas oryzae pv. oryzae
Xanthomonas oryzae pv. oryzae · InteractorDonald Groth, Louisiana State University AgCenter, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“A high level of Oschibl mRNA was detected after inoculation with M. grisea or Xanthomonas oryzae pv. oryzae.”

✓ located verbatim in the source · abstract, characters 429–537 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

An avirulent M. grisea strain induced Oschib1 expression more rapidly than a virulent strain.

Treatment
avirulent strain of M. griseae0
Interactor
M. griseaPyricularia griseae0pathogen
Gene
Oschib1e0
Outcome
Expression of Oschib1e0
Direction
more rapidlye0
Comparator
virulent straine0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Pyricularia grisea
Pyricularia grisea · InteractorPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschib1 was induced more rapidly when an avirulent strain of M. grisea was inoculated (incompatible interaction) than when a virulent strain was used (compatible interaction).”

✓ located verbatim in the source · abstract, characters 538–727 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

salicylic acid induced Oschibl expression.

Treatment
salicylic acide0
Gene
Oschible0
Outcome
Expression of Oschible0
Direction
inducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4.”

✓ located verbatim in the source · abstract, characters 728–899 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ethylene induced Oschibl expression.

Treatment
ethylenee0
Gene
Oschible0
Outcome
Expression of Oschible0
Direction
inducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4.”

✓ located verbatim in the source · abstract, characters 728–899 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

methyl jasmonic acid induced Oschibl expression.

Treatment
methyl jasmonic acide0
Gene
Oschible0
Outcome
Expression of Oschible0
Direction
inducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4.”

✓ located verbatim in the source · abstract, characters 728–899 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

H2O2 induced Oschibl expression.

Treatment
H2O2e0
Gene
Oschible0
Outcome
Expression of Oschible0
Direction
inducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4.”

✓ located verbatim in the source · abstract, characters 728–899 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CuSO4 induced Oschibl expression.

Treatment
CuSO4e0
Gene
Oschible0
Outcome
Expression of Oschible0
Direction
inducede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Expression of Oschibl was also induced by treatment of signaling molecules such as salicylic acid, ethylene, and methyl jasmonic acid, and by treatment with H2O2 or CuSO4.”

✓ located verbatim in the source · abstract, characters 728–899 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors suggest Oschib1 may participate in defense against pathogen infections.

Gene
Oschib1e0
Outcome
defense response against pathogen infectionse0
Qualifier
may be involvede0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The induction patterns of Oschibl expression suggest that Oschib1 may be involved in defense response against pathogen infections and may be classified as a member of pathogenesis-related protein 8 in rice.”

✓ located verbatim in the source · abstract, characters 900–1106 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors suggest Oschib1 may be classified as pathogenesis-related protein 8.

Gene
Oschib1e0
Outcome
may be classified as a member of pathogenesis-related protein 8e0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The induction patterns of Oschibl expression suggest that Oschib1 may be involved in defense response against pathogen infections and may be classified as a member of pathogenesis-related protein 8 in rice.”

✓ located verbatim in the source · abstract, characters 900–1106 · show in text ↑
t0

“Molecular Characterization of a Pathogenesis-related Protein 8 Gene Encoding a Class III Chitinase in Rice”

✓ located verbatim in the source · title, characters 0–106 · show in text ↑

methyl · molecular: expression · Oryza sativa (rice)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. negative
See all 2 papers →

Xanthomonas oryzae pv. oryzae · molecular: expression · Oryza sativa (rice)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

ethene · molecular: expression · Oryza sativa (rice)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

4 papers more in this group

See all 8 papers →

hydrogen peroxide · molecular: expression · Oryza sativa (rice)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

7 papers more in this group

See all 11 papers →

jasmonic acid · molecular: expression · Oryza sativa (rice)Positive and negative results

29 papers: 24 positive, 5 negative or no effect

23 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. negative
  3. no effect

25 papers more in this group

See all 29 papers →

salicylic acid · molecular: expression · Oryza sativa (rice)Positive and negative results

31 papers: 28 positive, 3 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

27 papers more in this group

See all 31 papers →

copper(II) sulfate · molecular: expression · Oryza sativa (rice)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 →

Pyricularia grisea · molecular: expression · Oryza sativa (rice)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.