Evidence map›Paper›PMID 27856916›Full record

ArticlePlant physiology2017

Homologues of the RPW8 Resistance Protein Are Localized to the Extrahaustorial Membrane that Is Likely Synthesized De Novo.

Robert Berkey, Yi Zhang, Xianfeng Ma, Harlan King, Qiong Zhang, Wenming Wang, Shunyuan Xiao

Abstract read
In one paragraph

Article in Plant physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
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

22 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Regulation and Function of Defense-Related Callose Deposition in Plants.International journal of molecular sciences · 2021
    Review
  11. Review
  12. Focal Accumulation of ROS Can BlockInternational journal of molecular sciences · 2020
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors.

Robert BerkeyInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).ORCID 0000-0002-2988-778X
Yi ZhangInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).ORCID 0000-0002-1566-098X
Xianfeng MaInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).
Harlan KingInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).
Qiong ZhangInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).
Wenming WangInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.).
Shunyuan XiaoInstitute for Bioscience and Biotechnology Research, University of Maryland, Rockville, Maryland (R.B., Y.Z., X.M., H.K., Q.Z., S.X.); xiao@umd.edu.ORCID 0000-0003-1348-4879

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Upon penetration of the host cell wall, the powdery mildew fungus develops a feeding structure named the haustorium in the invaded host cell. Concomitant with haustorial biogenesis, the extrahaustorial membrane (EHM) is formed to separate the haustorium from the host cell cytoplasm. The Arabidopsis resistance protein RPW8.2 is specifically targeted to the EHM where it activates haustorium-targeted resistance against powdery mildew. RPW8.2 belongs to a small family with six members in Arabidopsis (Arabidopsis thaliana). Whether Homologs of RPW8 (HR) 1 to HR4 are also localized to the EHM and contribute to resistance has not been determined. Here, we report that overexpression of HR1, HR2, or HR3 led to enhanced resistance to powdery mildew, while genetic depletion of HR2 or HR3 resulted in enhanced susceptibility, indicating that these RPW8 homologs contribute to basal resistance. Interestingly, we found that N-terminally YFP-tagged HR1 to HR3 are also EHM-localized. This suggests that EHM-targeting is an ancestral feature of the RPW8 family. Indeed, two RPW8 homologs from Brassica oleracea tested also exhibit EHM-localization. Domain swapping analysis between HR3 and RPW8.2 suggests that sequence diversification in the N-terminal 146 amino acids of RPW8.2 probably functionally distinguishes it from other family members. Moreover, we found that N-terminally YFP-tagged HR3 is also localized to the plasma membrane and the fungal penetration site (the papilla) in addition to the EHM. Using this unique feature of YFP-HR3, we obtained preliminary evidence to suggest that the EHM is unlikely derived from invagination of the plasma membrane, rather it may be mainly synthesized de novo.

Indexed as

ArabidopsisArabidopsis ProteinsAscomycotaBacterial ProteinsBrassicaCell MembraneDisease ResistanceHost-Pathogen InteractionsLuminescent ProteinsMembrane ProteinsPlant DiseasesPlant ProteinsPlants, Genetically ModifiedProtein TransportArabidopsis ProteinsBacterial ProteinsHR1 protein, ArabidopsisHR2 protein, ArabidopsisHR3 protein, ArabidopsisLuminescent ProteinsMembrane ProteinsPlant ProteinsRPW8.2 protein, Arabidopsisyellow fluorescent protein, Bacteria

Identifiers

PMID27856916
PMCPMC5210751

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.