Paper · 2024 · International Journal of Molecular Sciences

Ss4368: Pathogen-Associated Molecular Pattern for Inducing Plant Cell Death and Resistance to Phytophthora capsici

Ziwen He; Shufang Peng; Qingqing Yin; et al.

7
claims
11
verbatim quotes
3
citations
2
research areas
✓
Open access · cc-by

Abstract

Plant recognition of pathogen-associated molecular patterns (PAMPs) is pivotal in triggering immune responses, highlighting their potential as inducers of plant immunity. However, the number of PAMPs identified and applied in such contexts remains limited. In this study, we characterize a novel PAMP, designated Ss4368, which is derived from Scleromitrula shiraiana. Ss4368 is specifically distributed among a few fungal genera, including Botrytis, Monilinia, and Botryotinia. The transient expression of Ss4368 elicits cell death in a range of plant species. The signaling peptides, three conserved motifs, and cysteine residues (C46, C88, C112, C130, and C148) within Ss4368 are crucial for inducing robust cell death. Additionally, these signaling peptides are essential for the protein’s localization to the apoplast. The cell death induced by Ss4368 and its homologous protein, Bc4368, is independent of the SUPPRESSOR OF BIR1-1 (SOBIR1), BRI1-ASSOCIATED KINASE-1 (BAK1), and salicylic acid (SA) pathways. Furthermore, the immune responses triggered by Ss4368 and Bc4368 significantly enhance the resistance of Nicotiana benthamiana to Phytophthora capsici. Therefore, we propose that Ss4368, as a novel PAMP, holds the potential for developing strategies to enhance plant resistance against P. capsici.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

Ss4368 occurs in several fungal genera.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Gene
Ss4368e0
Outcome
specifically distributed among a few fungal generae0

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Ss4368 is specifically distributed among a few fungal genera, including Botrytis, Monilinia, and Botryotinia”

✓ located verbatim in the source · abstract, characters 368–476 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · abstract, characters 1117–1138 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Transient Ss4368 expression elicited cell death in multiple plant species.

Taxon
plant speciese0
Treatment
transient expression of Ss4368e0
Gene
Ss4368e0
Outcome
cell deathe0

Not reportedComparatorDirection

Verbatim

e0

“The transient expression of Ss4368 elicits cell death in a range of plant species”

✓ located verbatim in the source · abstract, characters 478–559 · show in text ↑
Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Ss4368 signaling peptides, motifs and cysteine residues are crucial to robust cell death.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Gene
Ss4368e0
Outcome
robust cell deathe0
Qualifier
signaling peptides, three conserved motifs, and cysteine residues (C46, C88, C112, C130, and C148)e0

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The signaling peptides, three conserved motifs, and cysteine residues (C46, C88, C112, C130, and C148) within Ss4368 are crucial for inducing robust cell death”

✓ located verbatim in the source · abstract, characters 561–720 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · abstract, characters 1117–1138 · show in text ↑
Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Ss4368 signaling peptides were essential for apoplast localization.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Outcome
protein’s localization to the apoplaste0
Qualifier
signaling peptidese0

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“these signaling peptides are essential for the protein’s localization to the apoplast”

✓ located verbatim in the source · abstract, characters 736–821 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · abstract, characters 1117–1138 · show in text ↑
Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Ss4368 and Bc4368 induced cell death independently of SOBIR1, BAK1 and SA pathways.

Taxon
Nicotiana benthamianaNicotiana benthamianat0
Gene
Ss4368e0
Outcome
cell deathe0
Qualifier
independent of the SUPPRESSOR OF BIR1-1 (SOBIR1), BRI1-ASSOCIATED KINASE-1 (BAK1), and salicylic acid (SA) pathwayse0

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The cell death induced by Ss4368 and its homologous protein, Bc4368, is independent of the SUPPRESSOR OF BIR1-1 (SOBIR1), BRI1-ASSOCIATED KINASE-1 (BAK1), and salicylic acid (SA) pathways”

✓ located verbatim in the source · abstract, characters 823–1010 · show in text ↑
t0

“Nicotiana benthamiana”

✓ located verbatim in the source · abstract, characters 1117–1138 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Ss4368 triggered immunity significantly enhanced Nicotiana resistance to Phytophthora capsici.

Taxon
Nicotiana benthamianaNicotiana benthamianae0
Treatment
Ss4368e0
Interactor
Phytophthora capsiciPhytophthora capsicie0pathogen
Outcome
resistance of Nicotiana benthamiana to Phytophthora capsicie0
Direction
enhancee0

Not reportedComparator

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Phytophthora capsici
Phytophthora capsici · InteractorElsa Paderes, Landcare Research NZ Ltd. · CC BY 3.0 nz · Wikimedia Commons ↗

Verbatim

e0

“the immune responses triggered by Ss4368 and Bc4368 significantly enhance the resistance of Nicotiana benthamiana to Phytophthora capsici”

✓ located verbatim in the source · abstract, characters 1025–1162 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bc4368 triggered immunity significantly enhanced Nicotiana resistance to Phytophthora capsici.

Taxon
Nicotiana benthamianaNicotiana benthamianae0
Treatment
Bc4368e0
Interactor
Phytophthora capsiciPhytophthora capsicie0pathogen
Outcome
resistance of Nicotiana benthamiana to Phytophthora capsicie0
Direction
enhancee0

Not reportedComparator

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

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗
Phytophthora capsici
Phytophthora capsici · InteractorElsa Paderes, Landcare Research NZ Ltd. · CC BY 3.0 nz · Wikimedia Commons ↗

Verbatim

e0

“the immune responses triggered by Ss4368 and Bc4368 significantly enhance the resistance of Nicotiana benthamiana to Phytophthora capsici”

✓ located verbatim in the source · abstract, characters 1025–1162 · show in text ↑

transgenic · cytology · Nicotiana benthamianaPositive and negative results

42 papers: 14 positive, 28 negative or no effect

13 papers in the same direction as this paper · 28 in the opposite direction

  1. negative
  2. no effect
  3. negative

38 papers more in this group

See all 42 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.