Paper · 1991 · Journal of Phytopathology

Effect of Heat‐killed Bacteria on the Interaction of Pea with Pseudomonas syringae pv. pisi

A. D. Akpa; S. A. Archer

6
claims
11
verbatim quotes
6
citations
1
research areas
—
Not open access

Abstract

Abstract The effect of simultaneous treatment with heat‐killed and live bacteria on the responses of two pea cultivars, Early Onward and Hurst Green Shaft, to inoculation with two races, 1 and 2, of Pseudomonas syringae pv. pisi was investigated. Simultaneous application induced resistance in pea to the bacterial pathogen. The level of resistance response elicited in the host increased with increasing number of heat‐killed cells in the inoculum. Heat‐killed cells of neither race elicited the hypersensitive reaction. No symptoms were induced in plants of either cultivar from treatment of control plants with sterile distilled water or from treatment with heat‐killed bacterial cells only. Simultaneous treatment with heat‐killed and inoculation with live bacteria did not have any apparent effect on the trend of bacterial multiplication in vivo .

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Simultaneous killed and live bacteria induced pea resistance.

Treatment
Simultaneous applicatione0
Interactor
bacterial pathogene0pathogen
Outcome
resistancee0
Direction
inducede0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Simultaneous application induced resistance in pea to the bacterial pathogen”

✓ located verbatim in the source · abstract, characters 247–323 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Resistance increased as the number of killed cells increased.

Treatment
heat‐killed cellse0
Outcome
resistance responsee0
Direction
increasede0

Not reportedInteractor

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The level of resistance response elicited in the host increased with increasing number of heat‐killed cells in the inoculum”

✓ located verbatim in the source · abstract, characters 325–448 · show in text ↑
t0

“Pea”

✓ located verbatim in the source · title, characters 53–56 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Heat-killed cells of neither race elicited hypersensitive reaction.

Treatment
Heat‐killed cellse0
Outcome
hypersensitive reactione0

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Heat‐killed cells of neither race elicited the hypersensitive reaction”

✓ located verbatim in the source · abstract, characters 450–520 · show in text ↑
t0

“Pea”

✓ located verbatim in the source · title, characters 53–56 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Water controls produced no plant symptoms.

Treatment
sterile distilled watere0
Outcome
No symptomse0

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“No symptoms were induced in plants of either cultivar from treatment of control plants with sterile distilled water”

✓ located verbatim in the source · abstract, characters 522–637 · show in text ↑
t0

“Pea”

✓ located verbatim in the source · title, characters 53–56 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Killed bacterial cells alone produced no plant symptoms.

Treatment
heat‐killed bacterial cells onlye0
Outcome
No symptomse0

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“No symptoms were induced in plants of either cultivar from treatment of control plants with sterile distilled water or from treatment with heat‐killed bacterial cells only”

✓ located verbatim in the source · abstract, characters 522–693 · show in text ↑
t0

“Pea”

✓ located verbatim in the source · title, characters 53–56 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Simultaneous treatment did not apparently alter bacterial multiplication in vivo.

Treatment
Simultaneous treatment with heat‐killed and inoculation with live bacteriae0
Interactor
bacteriaBacteriae0pathogen
Outcome
bacterial multiplication in vivoe0
Direction
did not have any apparent effecte0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Simultaneous treatment with heat‐killed and inoculation with live bacteria did not have any apparent effect on the trend of bacterial multiplication in vivo”

✓ located verbatim in the source · abstract, characters 695–851 · show in text ↑
t0

“Pea”

✓ located verbatim in the source · title, characters 53–56 · show in text ↑

inoculation · Bacteria · Lathyrus oleraceus (pea)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

heat · disease · Lathyrus oleraceus (pea)Positive and negative results

7 papers: 4 positive, 3 negative or no effect

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

  1. positive
  2. positive
  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.