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HopW1 from Disrupts the Actin Cytoskeleton to Promote Virulence in Arabidopsis


Eukaryotic cells require a dynamic actin cytoskeleton for basic functions, some of which are important for immune responses. Such functions include the transport of cellular material to and from different cellular compartments. The plant pathogen Pseudomonas syringae is extracellular and causes disease by injecting effector proteins into plant cells. One of these effectors is HopW1, which disrupts the actin cytoskeleton and reduces the transport of vesicles from the cell surface and proteins destined for vacuoles. The effects of HopW1 can be mimicked using a drug that inhibits actin polymerization. Thus, this work establishes a direct mechanism for pathogen disruption of the actin cytoskeleton and implicates actin-dependent events as important for controlling pathogen growth during infection.


Vyšlo v časopise: HopW1 from Disrupts the Actin Cytoskeleton to Promote Virulence in Arabidopsis. PLoS Pathog 10(6): e32767. doi:10.1371/journal.ppat.1004232
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.ppat.1004232

Souhrn

Eukaryotic cells require a dynamic actin cytoskeleton for basic functions, some of which are important for immune responses. Such functions include the transport of cellular material to and from different cellular compartments. The plant pathogen Pseudomonas syringae is extracellular and causes disease by injecting effector proteins into plant cells. One of these effectors is HopW1, which disrupts the actin cytoskeleton and reduces the transport of vesicles from the cell surface and proteins destined for vacuoles. The effects of HopW1 can be mimicked using a drug that inhibits actin polymerization. Thus, this work establishes a direct mechanism for pathogen disruption of the actin cytoskeleton and implicates actin-dependent events as important for controlling pathogen growth during infection.


Zdroje

1. JonesJD, DanglJL (2006) The plant immune system. Nature 444: 323–329.

2. SarkarSF, GordonJS, MartinGB, GuttmanDS (2006) Comparative genomics of host-specific virulence in Pseudomonas syringae. Genetics 174: 1041–1056.

3. Agrios GN (2005) Plant Pathology. San Diego: Academic Press.

4. AbramovitchRB, AndersonJC, MartinGB (2006) Bacterial elicitation and evasion of plant innate immunity. Nat Rev Mol Cell Biol 7: 601–611.

5. BlockA, AlfanoJR (2011) Plant targets for Pseudomonas syringae type III effectors: virulence targets or guarded decoys? Curr Opin Microbiol 14: 39–46.

6. JelenskaJ, YaoN, VinatzerBA, WrightCM, BrodskyJL, et al. (2007) A J domain virulence effector of Pseudomonas syringae remodels host chloroplasts and suppresses defenses. Curr Biol 17: 499–508.

7. XiangT, ZongN, ZouY, WuY, ZhangJ, et al. (2008) Pseudomonas syringae effector AvrPto blocks innate immunity by targeting receptor kinases. Curr Biol 18: 74–80.

8. LindebergM, CunnacS, CollmerA (2012) Pseudomonas syringae type III effector repertoires: last words in endless arguments. Trends Microbiol 20: 199–208.

9. LeeAH, HurleyB, FelsensteinerC, YeaC, CkurshumovaW, et al. (2012) A bacterial acetyltransferase destroys plant microtubule networks and blocks secretion. PLoS Pathog 8: e1002523.

10. ShimadaC, LipkaV, O'ConnellR, OkunoT, Schulze-LefertP, et al. (2006) Nonhost resistance in Arabidopsis-Colletotrichum interactions acts at the cell periphery and requires actin filament function. Mol Plant-Microbe Interact 19: 270–279.

11. MiklisM, ConsonniC, BhatRA, LipkaV, Schulze-LefertP, et al. (2007) Barley MLO modulates actin-dependent and actin-independent antifungal defense pathways at the cell periphery. Plant Physiol 144: 1132–1143.

12. Henty-RidillaJL, ShimonoM, LiJ, ChangJH, DayB, et al. (2013) The plant actin cytoskeleton responds to signals from microbe-associated molecular patterns. PLoS Pathog 9: e1003290.

13. Henty-RidillaJL, LiJ, DayB, StaigerCJ (2014) ACTIN DEPOLYMERIZING FACTOR4 regulates actin dynamics during innate immune signaling in Arabidopsis. Plant Cell 26: 340–352.

14. KimH, ParkM, KimSJ, HwangI (2005) Actin filaments play a critical role in vacuolar trafficking at the Golgi complex in plant cells. Plant Cell 17: 888–902.

15. BhavsarAP, GuttmanJA, FinlayBB (2007) Manipulation of host-cell pathways by bacterial pathogens. Nature 449: 827–834.

16. FrancoIS, ShumanHA (2012) A pathogen's journey in the host cell: Bridges between actin and traffic. BioArchitecture 2: 38–42.

17. CarabeoR (2011) Bacterial subversion of host actin dynamics at the plasma membrane. Cell Microbiol 13: 1460–1469.

18. DunnJD, ValdiviaRH (2010) Uncivil engineers: Chlamydia, Salmonella and Shigella alter cytoskeleton architecture to invade epithelial cells. Future Microbiol 5: 1210–1232.

19. GuoM, TianF, WamboldtY, AlfanoJR (2009) The majority of the type III effector inventory of Pseudomonas syringae pv. tomato DC3000 can suppress plant immunity. Mol Plant-Microbe Interact 22: 1069–1080.

20. GuttmanDS, VinatzerBA, SarkarSF, RanallMV, KettlerG, et al. (2002) A functional screen for the type III (Hrp) secretome of the plant pathogen Pseudomonas syringae. Science 295: 1722–1726.

21. LeeMW, JelenskaJ, GreenbergJT (2008) Arabidopsis proteins important for modulating defense responses to Pseudomonas syringae that secrete HopW1-1. Plant J 54: 452–465.

22. GreenbergJT, VinatzerBA (2003) Identifying type III effectors of plant pathogens and analyzing their interaction with plant cells. Curr Opin Microbiol 6: 20–28.

23. ThomasC, ThollS, MoesD, DieterleM, PapugaJ, et al. (2009) Actin bundling in plants. Cell Motil Cytoskeleton 66: 940–957.

24. RiedlJ, CrevennaAH, KessenbrockK, YuJH, NeukirchenD, et al. (2008) Lifeact: a versatile marker to visualize F-actin. Nat Methods 5: 605–607.

25. HigakiT, KutsunaN, SanoT, KondoN, HasezawaS (2010) Quantification and cluster analysis of actin cytoskeletal structures in plant cells: role of actin bundling in stomatal movement during diurnal cycles in Arabidopsis guard cells. Plant J 61: 156–165.

26. SmertenkoAP, DeeksMJ, HusseyPJ (2010) Strategies of actin reorganisation in plant cells. J Cell Sci 123: 3019–3028.

27. SenetarMA, FosterSJ, McCannRO (2004) Intrasteric inhibition mediates the interaction of the I/LWEQ module proteins Talin1, Talin2, Hip1, and Hip12 with actin. Biochem 43: 15418–15428.

28. TianM, ChaudhryF, RuzickaDR, MeagherRB, StaigerCJ, et al. (2009) Arabidopsis actin-depolymerizing factor AtADF4 mediates defense signal transduction triggered by the Pseudomonas syringae effector AvrPphB. Plant Physiol 150: 815–824.

29. PorterK, ShimonoM, TianM, DayB (2012) Arabidopsis Actin-Depolymerizing Factor-4 links pathogen perception, defense activation and transcription to cytoskeletal dynamics. PLoS Pathog 8: e1003006.

30. SamajJ, BaluskaF, VoigtB, SchlichtM, VolkmannD, et al. (2004) Endocytosis, actin cytoskeleton, and signaling. Plant Physiol 135: 1150–1161.

31. VidaTA, EmrSD (1995) A new vital stain for visualizing vacuolar membrane dynamics and endocytosis in yeast. J Cell Biol 128: 779–792.

32. ZipfelC, RobatzekS, NavarroL, OakeleyEJ, JonesJDG, et al. (2004) Bacterial disease resistance in Arabidopsis through flagellin perception. Nature 428: 764–767.

33. RobatzekS, ChinchillaD, BollerT (2006) Ligand-induced endocytosis of the pattern recognition receptor FLS2 in Arabidopsis. Genes Dev 20: 537–542.

34. ChinchillaD, ZipfelC, RobatzekS, KemmerlingB, NurnbergerT, et al. (2007) A flagellin-induced complex of the receptor FLS2 and BAK1 initiates plant defence. Nature 448: 497–500.

35. SharfmanM, BarM, EhrlichM, SchusterS, Melech-BonfilS, et al. (2011) Endosomal signaling of the tomato leucine-rich repeat receptor-like protein LeEix2. Plant J 68: 413–423.

36. LiJ, Zhao-HuiC, BatouxM, NekrasovV, RouxM, et al. (2009) Specific ER quality control components required for biogenesis of the plant innate immune receptor EFR. Proc Natl Acad Sci U S A 106: 15973–15978.

37. WangD, WeaverND, KesarwaniM, DongX (2005) Induction of protein secretory pathway is required for systemic acquired resistance. Science 308: 1036–1040.

38. HatsugaiN, Hara-NishimuraI (2010) Two vacuole-mediated defense strategies in plants. Plant Signal Behav 5: 1568–1570.

39. StevensJM, GalyovEE, StevensMP (2006) Actin-dependent movement of bacterial pathogens. Nat Rev Microbiol 4: 91–101.

40. ShaoF (2008) Biochemical functions of Yersinia type III effectors. Curr Opin Microbiol 11: 21–29.

41. Franklin-TongVE, GourlayCW (2008) A role for actin in regulating apoptosis/programmed cell death: evidence spanning yeast, plants and animals. Biochem J 413: 389–404.

42. BüttnerD, BonasU (2003) Common infection strategies of plant and animal pathogenic bacteria. Curr Opin Plant Biol 6: 312–319.

43. YararD, Waterman-StorerCM, SchmidSL (2005) A dynamic actin cytoskeleton functions at multiple stages of clathrin-mediated endocytosis. Mol Biol Cell 16: 964–975.

44. KandasamyMK, McKinneyEC, RoyE, MeagherRB (2012) Plant vegetative and animal cytoplasmic actins share functional competence for spatial development with protists. The Plant cell 24: 2041–2057.

45. DeeksMJ, CvrckovaF, MacheskyLM, MikitovaV, KetelaarT, et al. (2005) Arabidopsis group Ie formins localize to specific cell membrane domains, interact with actin-binding proteins and cause defects in cell expansion upon aberrant expression. New Phytol 168: 529–540.

46. DeeksMJ, CalcuttJR, IngleEK, HawkinsTJ, ChapmanS, et al. (2012) A superfamily of actin-binding proteins at the actin-membrane nexus of higher plants. Curr Biol 22: 1595–1600.

47. JelenskaJ, HalJAv, GreenbergJT (2010) Pseudomonas syringae hijacks plant stress chaperone machinery for virulence. Proc Natl Acad Sci U S A 107: 13177–13182.

48. JinJB, KimYA, KimSJ, LeeSH, KimDH, et al. (2001) A new dynamin-like protein, ADL6, is involved in trafficking from the trans-Golgi network to the central vacuole in Arabidopsis. Plant Cell 13: 1511–1526.

49. LeeKH, KimDH, LeeSW, KimZH, HwangI (2002) In vivo import experiments in protoplasts reveal the importance of the overall context but not specific amino acid residues of the transit peptide during import into chloroplasts. Mol Cells 14: 388–397.

50. BlanchoinL, PollardTD, MullinsRD (2000) Interactions of ADF/cofilin, Arp2/3 complex, capping protein and profilin in remodeling of branched actin filament networks. Curr Biol 10: 1273–1282.

51. KovarDR, KuhnJR, TichyAL, PollardTD (2003) The fission yeast cytokinesis formin Cdc12p is a barbed end actin filament capping protein gated by profilin. J Cell Biol 161: 875–887.

52. LuH, SalimianS, GamelinE, WangG, FedorowskiJ, et al. (2009) Genetic analysis of acd6-1 reveals complex defense networks and leads to identification of novel defense genes in Arabidopsis. Plant J 58: 401–412.

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Hygiena a epidemiológia Infekčné lekárstvo Laboratórium

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