Paper · 2009 · Science

Priming in Systemic Plant Immunity

Ho Won Jung; Timothy J. Tschaplinski; Lin Wang; et al.

6
claims
12
verbatim quotes
947
citations
3
research areas
—
Not open access

Abstract

Plants possess inducible systemic defense responses when locally infected by pathogens. Bacterial infection results in the increased accumulation of the mobile metabolite azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis that confers local and systemic resistance against the pathogen Pseudomonas syringae. Azelaic acid primes plants to accumulate salicylic acid (SA), a known defense signal, upon infection. Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants. Furthermore, the predicted secreted protein AZI1 is also important for generating vascular sap that confers disease resistance. Thus, azelaic acid and AZI1 are components of plant systemic immunity involved in priming defenses.

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Claims 6

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacterial infection increased azelaic acid in Arabidopsis vascular sap.

Taxon
ArabidopsisArabidopsise0
Organ / stage
vascular sape0
Treatment
Bacterial infectione0
Outcome
accumulation of the mobile metabolite azelaic acide0
Direction
increasede0

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

Arabidopsis
Arabidopsis · Taxon · picture of the genus (one of its species)Original uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Bacterial infection results in the increased accumulation of the mobile metabolite azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis”

✓ located verbatim in the source · abstract, characters 88–252 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azelaic acid conferred local and systemic resistance against Pseudomonas syringae.

Taxon
ArabidopsisArabidopsise0
Treatment
azelaic acide0
Interactor
Pseudomonas syringaePseudomonas syringaee0pathogen
Outcome
local and systemic resistancee0

Not reportedComparatorDirection

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

Arabidopsis
Arabidopsis · Taxon · picture of the genus (one of its species)Original uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Pseudomonas syringae
Pseudomonas syringae · InteractorHoward F. Schwartz · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis that confers local and systemic resistance against the pathogen Pseudomonas syringae”

✓ located verbatim in the source · abstract, characters 171–337 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azelaic acid primed salicylic acid accumulation upon infection.

Taxon
ArabidopsisArabidopsise1
Treatment
Azelaic acide0
Outcome
accumulate salicylic acide0
Qualifier
upon infectione0

Not reportedComparatorDirection

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

Arabidopsis
Arabidopsis · Taxon · picture of the genus (one of its species)Original uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Azelaic acid primes plants to accumulate salicylic acid (SA), a known defense signal, upon infection”

✓ located verbatim in the source · abstract, characters 339–439 · show in text ↑
t0

“Plant Immunity”

✓ located verbatim in the source · title, characters 20–34 · show in text ↑
e1

“Bacterial infection results in the increased accumulation of the mobile metabolite azelaic acid, a nine-carbon dicarboxylic acid, in the vascular sap of Arabidopsis”

✓ located verbatim in the source · abstract, characters 88–252 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

AZI1 mutation caused loss of pathogen- or azelaic acid-triggered systemic immunity.

Taxon
plantsViridiplantaee0
Treatment
Mutatione0
Gene
AZELAIC ACID INDUCED 1 (AZI1)e0
Outcome
systemic immunitye0
Direction
losse0

Not reportedComparator

Verbatim

e0

“Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants”

✓ located verbatim in the source · abstract, characters 441–659 · show in text ↑
t0

“Plant Immunity”

✓ located verbatim in the source · title, characters 20–34 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

AZI1 mutation caused loss of primed salicylic acid induction.

Taxon
plantsViridiplantaee0
Treatment
Mutatione0
Gene
AZELAIC ACID INDUCED 1 (AZI1)e0
Outcome
priming of SA inductione0
Direction
losse0

Not reportedComparator

Verbatim

e0

“Mutation of the AZELAIC ACID INDUCED 1 (AZI1) gene, which is induced by azelaic acid, results in the specific loss of systemic immunity triggered by pathogen or azelaic acid and of the priming of SA induction in plants”

✓ located verbatim in the source · abstract, characters 441–659 · show in text ↑
t0

“Plant Immunity”

✓ located verbatim in the source · title, characters 20–34 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AZI1 mutation altered the generation of resistance-conferring vascular sap.

Taxon
plantsViridiplantaee1
Gene
AZI1e0
Outcome
vascular sap that confers disease resistancee0

Not reportedTreatmentComparatorDirection

Verbatim

e0

“the predicted secreted protein AZI1 is also important for generating vascular sap that confers disease resistance”

✓ located verbatim in the source · abstract, characters 674–787 · show in text ↑
t0

“Plant Immunity”

✓ located verbatim in the source · title, characters 20–34 · show in text ↑
e1

“Azelaic acid primes plants to accumulate salicylic acid (SA), a known defense signal, upon infection”

✓ located verbatim in the source · abstract, characters 339–439 · show in text ↑

nonanedioic acid · Pseudomonas syringae · ArabidopsisResults 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 →

loss of function · molecular: metabolites · Viridiplantae (plants)Positive and negative results

14 papers: 5 positive, 9 negative or no effect

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

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

loss of function · disease · Viridiplantae (plants)Positive and negative results

15 papers: 5 positive, 10 negative or no effect

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

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 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.