Abstract
Polyamines are known to accumulate in response to stress. Compelling evidence indicate a protective role for polyamines during defense. However, signaling pathways underlying polyamine functions have not been fully elucidated. We recently found that the polyamine putrescine (Put) accumulates during effector triggered immunity (ETI). Treatment with Put triggered local and systemic transcriptional reprogramming partly overlapping with systemic acquired resistance (SAR) responses. In addition, Put treatment led to local salicylic acid (SA) accumulation and systemic defenses against virulent bacteria. Consistent with this, we found that Put signaling is mainly ROS dependent and partly compromised by ENHANCED DISEASE SUSCEPTIBILITY1 (EDS1), SALICYLIC ACID INDUCTION DEFICIENT 2 (SID2) and NONEXPRESSOR of PR GENES1 (NPR1) loss-of-function mutations. Here, we propose a preliminary model by which putrescine contributes to local and systemic defenses in Arabidopsis thaliana.
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Claims 6
Claim · model-written summary
Putrescine accumulated during effector triggered immunity.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Outcome
- putrescine (Put) accumulatese0
- Direction
- accumulatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“putrescine (Put) accumulates during effector triggered immunity (ETI)”
Claim · model-written summary
Putrescine treatment triggered local and systemic transcriptional reprogramming partly overlapping with systemic acquired resistance.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Pute0
- Outcome
- local and systemic transcriptional reprogramminge0
- Qualifier
- partly overlapping with systemic acquired resistance (SAR) responsese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Treatment with Put triggered local and systemic transcriptional reprogramming partly overlapping with systemic acquired resistance (SAR) responses.”
Claim · model-written summary
Putrescine treatment led to local salicylic acid accumulation.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Pute0
- Outcome
- local salicylic acid (SA) accumulatione0
- Direction
- accumulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Put treatment led to local salicylic acid (SA) accumulation”
Claim · model-written summary
Putrescine treatment led to systemic defenses against virulent bacteria.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Pute0
- Interactor
- virulent bacteriae0pathogen
- Outcome
- systemic defenses against virulent bacteriae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Put treatment led to local salicylic acid (SA) accumulation and systemic defenses against virulent bacteria”
Claim · model-written summary
Putrescine signaling was mainly ROS dependent.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Compound
- ROSe0
- Outcome
- Put signalinge0
- Qualifier
- mainly ROS dependente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Put signaling is mainly ROS dependent”
Claim · model-written summary
EDS1, SID2 and NPR1 loss of function mutations partly compromised putrescine signaling.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- ENHANCED DISEASE SUSCEPTIBILITY1 (EDS1), SALICYLIC ACID INDUCTION DEFICIENT 2 (SID2) and NONEXPRESSOR of PR GENES1 (NPR1) loss-of-function mutationse0
- Outcome
- Put signalinge0
- Direction
- compromisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Arabidopsis thaliana”
e0“Put signaling is mainly ROS dependent and partly compromised by ENHANCED DISEASE SUSCEPTIBILITY1 (EDS1), SALICYLIC ACID INDUCTION DEFICIENT 2 (SID2) and NONEXPRESSOR of PR GENES1 (NPR1) loss-of-function mutations”
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