Evidence map›Paper›PMID 22788999›Full record

ArticleMolecular plant pathology2012

Contribution of a harpin protein from Xanthomonas axonopodis pv. citri to pathogen virulence.

Germán G Sgro, Florencia A Ficarra, Germán Dunger, Telma E Scarpeci, Estela M Valle, Adriana Cortadi, Elena G Orellano, Natalia Gottig, Jorgelina Ottado

Open access · bronzeAbstract read
In one paragraph

Article in Molecular plant pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.4field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 46 citations in OpenAlex.

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  6. Secrete or perish: The role of secretion systems inComputational and structural biotechnology journal · 2021
    Review
  7. Coiled-Coil N21 of Hpa1 inInternational journal of molecular sciences · 2020
    Article
  8. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Germán G SgroInstituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Rosario, Suipacha 531, (S2002LRK), Rosario, Argentina.
Florencia A Ficarra
Germán Dunger
Telma E Scarpeci
Estela M Valle
Adriana Cortadi
Elena G Orellano
Natalia Gottig
Jorgelina Ottado
Consejo Nacional de Investigaciones Científicas y Técnicas · ARNational University of Rosario · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Xanthomonas axonopodis pv. citri (Xac), the bacterium that causes citrus canker, contains a gene in the hrp [for hypersensitive response (HR) and pathogenicity] cluster that encodes a harpin protein called Hpa1. Hpa1 produced HR in the nonhost plants tobacco, pepper and Arabidopsis, whereas, in the host plant citrus, it elicited a weak defence response with no visible phenotype. Co-infiltrations of Xac with or without the recombinant Hpa1 protein in citrus leaves produced a larger number of cankers in the presence of the protein. To characterize the effect of Hpa1 during the disease, an XacΔhpa1 mutant was constructed, and infiltration of this mutant caused a smaller number of cankers. In addition, the lack of Hpa1 hindered bacterial aggregation both in solution and in planta. Analysis of citrus leaves infiltrated with Hpa1 revealed alterations in mesophyll morphology caused by the presence of cavitations and crystal idioblasts, suggesting the binding of the harpin to plant membranes and the elicitation of signalling cascades. Overall, these results suggest that, even though Hpa1 elicits the defence response in nonhost plants and, to a lesser extent, in host plants, its main roles in citrus canker are to alter leaf mesophyll structure and to aggregate bacterial cells, and thus increase virulence and pathogen fitness. We expressed the N-terminal and C-terminal regions and found that, although both regions elicited HR in nonhost plants, only the N-terminal region showed increased virulence and bacterial aggregation, supporting the role of this region of the protein as the main active domain.

Indexed as

AmyloidArabidopsisBacterial ProteinsCitrusCulture MediaPlant DiseasesPlant LeavesProtein Structure, TertiaryVirulenceXanthomonas axonopodisAmyloidBacterial ProteinsCulture Media

Identifiers

PMID22788999
PMCPMC6638867
OpenAlexW1954362039

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.