Paper · 2013 · Journal of Phytopathology

Differences in the Induction of Defence Responses in Resistant and Susceptible Muskmelon Plants Infected with Colletotrichum lagenarium

Yonghong Ge; David I. Guest; Yang Bi

12
claims
24
verbatim quotes
6
citations
2
research areas
✓
Open access

Abstract

Abstract Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium . Lesion restriction in resistant cultivars was associated with the accumulation of hydrogen peroxide (H 2 O 2 ). The activity of antioxidants catalase ( CAT ) and peroxidase ( POD ) significantly increased in both cultivars after inoculation, while levels of both CAT and POD activity were significantly higher in the resistant cultivar. Ascorbate peroxidase ( APX ) increased in both cultivars after inoculation, and level of APX activity was significantly higher in the resistant cultivar. Glutathione reductase ( GR ) activity significantly increased in both cultivars following inoculation, but was higher in the resistant cultivar, resulting in higher levels of ascorbic acid (AsA) and reduced glutathione ( GSH ). Phenylalanine ammonia lyase ( PAL ) significantly increased in inoculated leaves of both cultivars, resulting in higher levels of total phenolic compounds and flavonoids. The pathogenesis‐related proteins chitinase ( CHT ) and β‐1, 3‐glucanase ( GLU ) significantly increased following inoculation with higher activity in the resistant cultivar. These findings show that resistance of muskmelon plants against C. lagenarium is associated with the rapid accumulation of H 2 O 2 , resulting in altered cellular redox status, accumulation of pathogenesis‐related proteins, activation of phenylpropanoid pathway to accumulation of phenolic compounds and flavonoids.

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Claims 12

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Lesion restriction in resistant muskmelon was associated with increased hydrogen peroxide accumulation after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Material
Gankezaomie2
Interactor
C olletotrichum lagenariume2pathogen
Outcome
accumulation of hydrogen peroxide (H 2 O 2 )e1
Direction
increaseinferrede1

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Lesion restriction in resistant cultivars was associated with the accumulation of hydrogen peroxide (H 2 O 2 )”

✓ located verbatim in the source · abstract, characters 185–295 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Catalase and peroxidase activities increased in both muskmelon cultivars after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Treatment
inoculatione1
Interactor
C olletotrichum lagenariume2pathogen
Gene
catalase ( CAT ) and peroxidase ( POD )e1
Outcome
activitye1
Direction
increasede1

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e1

“The activity of antioxidants catalase ( CAT ) and peroxidase ( POD ) significantly increased in both cultivars after inoculation”

✓ located verbatim in the source · abstract, characters 297–425 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Catalase and peroxidase activities were higher in resistant muskmelon Gankezaomi than in susceptible Ganmibao.

Taxon
muskmelonCucumis meloe2
Material
Gankezaomie2
Interactor
C olletotrichum lagenariume2pathogen
Outcome
CAT and POD activitye1
Direction
highere1
Comparator
Ganmibaoe2

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e1

“levels of both CAT and POD activity were significantly higher in the resistant cultivar”

✓ located verbatim in the source · abstract, characters 433–520 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascorbate peroxidase activity increased in both muskmelon cultivars after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Treatment
inoculatione1
Interactor
C olletotrichum lagenariume2pathogen
Gene
Ascorbate peroxidase ( APX )e1
Outcome
APX activitye1
Direction
increasede1

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Ascorbate peroxidase ( APX ) increased in both cultivars after inoculation, and level of APX activity was significantly higher in the resistant cultivar”

✓ located verbatim in the source · abstract, characters 522–674 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

APX activity was higher in resistant muskmelon Gankezaomi than in susceptible Ganmibao.

Taxon
muskmelonCucumis meloe2
Material
Gankezaomie2
Interactor
C olletotrichum lagenariume2pathogen
Gene
Ascorbate peroxidase ( APX )e1
Outcome
APX activitye1
Direction
highere1
Comparator
Ganmibaoe2

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e1

“Ascorbate peroxidase ( APX ) increased in both cultivars after inoculation, and level of APX activity was significantly higher in the resistant cultivar”

✓ located verbatim in the source · abstract, characters 522–674 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Glutathione reductase activity increased in both muskmelon cultivars after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Treatment
inoculatione3
Interactor
C olletotrichum lagenariume2pathogen
Gene
Glutathione reductase ( GR )e3
Outcome
activitye3
Direction
increasede3

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e3

“Glutathione reductase ( GR ) activity significantly increased in both cultivars following inoculation, but was higher in the resistant cultivar, resulting in higher levels of ascorbic acid (AsA) and reduced glutathione ( GSH )”

✓ located verbatim in the source · abstract, characters 676–902 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Glutathione reductase activity was higher in resistant muskmelon Gankezaomi than in susceptible Ganmibao.

Taxon
muskmelonCucumis meloe2
Material
Gankezaomie2
Interactor
C olletotrichum lagenariume2pathogen
Gene
Glutathione reductase ( GR )e3
Outcome
activitye3
Direction
highere3
Comparator
Ganmibaoe2

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e3

“Glutathione reductase ( GR ) activity significantly increased in both cultivars following inoculation, but was higher in the resistant cultivar, resulting in higher levels of ascorbic acid (AsA) and reduced glutathione ( GSH )”

✓ located verbatim in the source · abstract, characters 676–902 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Ascorbic acid and reduced glutathione levels were higher in muskmelon after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Interactor
C olletotrichum lagenariume2pathogen
Gene
Glutathione reductase ( GR )e3
Outcome
ascorbic acid (AsA) and reduced glutathione ( GSH )e3
Direction
highere3

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e3

“Glutathione reductase ( GR ) activity significantly increased in both cultivars following inoculation, but was higher in the resistant cultivar, resulting in higher levels of ascorbic acid (AsA) and reduced glutathione ( GSH )”

✓ located verbatim in the source · abstract, characters 676–902 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Phenylalanine ammonia lyase activity increased in inoculated muskmelon leaves.

Taxon
muskmelonCucumis meloe2
Treatment
inoculated leavese4
Interactor
C olletotrichum lagenariume2pathogen
Outcome
Phenylalanine ammonia lyase ( PAL )e4
Direction
increasede4

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e4

“Phenylalanine ammonia lyase ( PAL ) significantly increased in inoculated leaves of both cultivars, resulting in higher levels of total phenolic compounds and flavonoids”

✓ located verbatim in the source · abstract, characters 904–1073 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Total phenolic compounds and flavonoids were higher in inoculated muskmelon leaves.

Taxon
muskmelonCucumis meloe2
Treatment
inoculated leavese4
Interactor
C olletotrichum lagenariume2pathogen
Outcome
total phenolic compounds and flavonoidse4
Direction
highere4

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e4

“Phenylalanine ammonia lyase ( PAL ) significantly increased in inoculated leaves of both cultivars, resulting in higher levels of total phenolic compounds and flavonoids”

✓ located verbatim in the source · abstract, characters 904–1073 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chitinase and beta-1,3-glucanase activities increased in muskmelon after C olletotrichum lagenarium inoculation.

Taxon
muskmelonCucumis meloe2
Treatment
inoculatione5
Interactor
C olletotrichum lagenariume2pathogen
Gene
chitinase ( CHT ) and β‐1, 3‐glucanase ( GLU )e5
Outcome
activitye5
Direction
increasede5

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e5

“The pathogenesis‐related proteins chitinase ( CHT ) and β‐1, 3‐glucanase ( GLU ) significantly increased following inoculation with higher activity in the resistant cultivar”

✓ located verbatim in the source · abstract, characters 1075–1248 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitinase and beta-1,3-glucanase activity was higher in resistant muskmelon Gankezaomi than in susceptible Ganmibao.

Taxon
muskmelonCucumis meloe2
Material
Gankezaomie2
Interactor
C olletotrichum lagenariume2pathogen
Gene
chitinase ( CHT ) and β‐1, 3‐glucanase ( GLU )e5
Outcome
activitye5
Direction
highere5
Comparator
Ganmibaoe2

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e5

“The pathogenesis‐related proteins chitinase ( CHT ) and β‐1, 3‐glucanase ( GLU ) significantly increased following inoculation with higher activity in the resistant cultivar”

✓ located verbatim in the source · abstract, characters 1075–1248 · show in text ↑
e2

“Defence reactions occurring in resistant (cv. Gankezaomi) and susceptible (cv. Ganmibao) muskmelon leaves were investigated after inoculating with C olletotrichum lagenarium”

✓ located verbatim in the source · abstract, characters 9–182 · show in text ↑

inoculation · quality: phytochemicals · Cucumis melo (muskmelon)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

inoculation · physiology: antioxidant enzymes · Cucumis melo (muskmelon)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.