Summary: A genus of OOMYCETES in the family Peronosporaceae. Most species are obligatory parasites and many are plant pathogens.

Top Publications

  1. Voglmayr H. Phylogenetic relationships of Peronospora and related genera based on nuclear ribosomal ITS sequences. Mycol Res. 2003;107:1132-42 pubmed
    ..8S-ITS2 region were analysed for 101 collections belonging to the genera Peronospora, Hyaloperonospora, Perofascia, Pseudoperonospora, Phytophthora and Peronophythora, using Bayesian inference of ..
  2. Voglmayr H, Fatehi J, Constantinescu O. Revision of Plasmopara (Chromista, Peronosporales) parasitic on Geraniaceae. Mycol Res. 2006;110:633-45 pubmed
    ..All species formed highly supported monophyletic lineages, which is corroborated by their distinct morphology. A key for identification, detailed descriptions, illustrations, and data on distribution are provided...
  3. Choi Y, Hong S, Shin H. Re-consideration of Peronospora farinosa infecting Spinacia oleracea as distinct species, Peronospora effusa. Mycol Res. 2007;111:381-91 pubmed
    ..downy mildew disease on various plants of Chenopodiaceae, including spinach, is regarded as a single species, Peronospora farinosa. In the present study, the ITS rDNA sequence and morphological data demonstrated that P...
  4. Voglmayr H, Constantinescu O. Revision and reclassification of three Plasmopara species based on morphological and molecular phylogenetic data. Mycol Res. 2008;112:487-501 pubmed publisher
    ..Plasmopara euphrasiae sp. nov. is segregated from P. densa, and P. centaureae-mollis is revised and relegated to synonymy of Bremia centaureae. All taxa are described and illustrated...
  5. Montes Borrego M, Muñoz Ledesma F, Jiménez Díaz R, Landa B. A nested-polymerase chain reaction protocol for detection and population biology studies of Peronospora arborescens, the downy mildew pathogen of opium poppy, using herbarium specimens and asymptomatic, fresh plant tissues. Phytopathology. 2009;99:73-81 pubmed publisher
    ..reaction (PCR) protocol was developed using either of two primer pairs that improves the in planta detection of Peronospora arborescens DNA...
  6. Choi Y, Denchev C, Shin H. Morphological and molecular analyses support the existence of host-specific Peronospora species infecting Chenopodium. Mycopathologia. 2008;165:155-64 pubmed publisher
    About 20 species of Peronospora have been reported to cause downy mildew on Chenopodium, but, particularly in plant pathology literature, only one species, P. farinosa, is considered to be involved...
  7. Thines M, Telle S, Ploch S, Runge F. Identity of the downy mildew pathogens of basil, coleus, and sage with implications for quarantine measures. Mycol Res. 2009;113:532-40 pubmed publisher
    ..reconstructions we confirmed in this study that the downy mildews of basil and coleus are unrelated to Peronospora lamii, which is a common pathogen of the weed Lamium purpureum...
  8. Borras Hidalgo O, Thomma B, Silva Y, Chacón O, Pujol M. Tobacco blue mould disease caused by Peronospora hyoscyami f. sp. tabacina. Mol Plant Pathol. 2010;11:13-8 pubmed publisher
    Blue mould [Peronospora hyoscyami f. sp. tabacina (Adam) Skalicky 1964] is one of the most important foliar diseases of tobacco that causes significant losses in the Americas, south-eastern Europe and the Middle East...
  9. Choi Y, Shin H, Voglmayr H. Reclassification of two peronospora species parasitic on draba in hyaloperonospora based on morphological and molecular phylogenetic data. Mycopathologia. 2011;171:151-9 pubmed publisher
    ..the causal agent responsible for downy mildew disease was originally regarded as a single species, Peronospora parasitica (now under Hyaloperonospora), but it was recently reconsidered to consist of many distinct species...

More Information

Publications103 found, 100 shown here

  1. Blasi P, Blanc S, Wiedemann Merdinoglu S, Prado E, Rühl E, Mestre P, et al. Construction of a reference linkage map of Vitis amurensis and genetic mapping of Rpv8, a locus conferring resistance to grapevine downy mildew. Theor Appl Genet. 2011;123:43-53 pubmed publisher
    ..amurensis, which explained up to 86.3% of the total phenotypic variance. This QTL was named 'Resistance to Plasmopara viticola 8' (Rpv8)...
  2. Milli A, Cecconi D, Bortesi L, Persi A, Rinalducci S, Zamboni A, et al. Proteomic analysis of the compatible interaction between Vitis vinifera and Plasmopara viticola. J Proteomics. 2012;75:1284-302 pubmed publisher
  3. Caillaud M, Wirthmueller L, Fabro G, Piquerez S, Asai S, Ishaque N, et al. Mechanisms of nuclear suppression of host immunity by effectors from the Arabidopsis downy mildew pathogen Hyaloperonospora arabidopsidis (Hpa). Cold Spring Harb Symp Quant Biol. 2012;77:285-93 pubmed publisher
    ..Here, we report recent advances in understanding how a pathogen can manipulate nuclear processes in order to cause disease. ..
  4. Kroumova A, Sahoo D, Raha S, Goodin M, Maiti I, Wagner G. Expression of an apoplast-directed, T-phylloplanin-GFP fusion gene confers resistance against Peronospora tabacina disease in a susceptible tobacco. Plant Cell Rep. 2013;32:1771-82 pubmed publisher
    ..Phylloplanins are plant-derived, antifungal glycoproteins produced by leaf trichomes. Expression of phylloplanin-GFP fusion gene to the apoplast of a blue mold susceptible tobacco resulted in increased resistance to this pathogen...
  5. Veronese P, Chen X, Bluhm B, Salmeron J, Dietrich R, Mengiste T. The BOS loci of Arabidopsis are required for resistance to Botrytis cinerea infection. Plant J. 2004;40:558-74 pubmed
    ..Interestingly, bos3 is more resistant than wild-type plants to virulent strains of the biotrophic pathogen Peronospora parasitica and the bacterial pathogen P. syringae pv. tomato...
  6. Belbahri L, Calmin G, Pawlowski J, Lefort F. Phylogenetic analysis and real time PCR detection of a presumbably undescribed Peronospora species on sweet basil and sage. Mycol Res. 2005;109:1276-87 pubmed
    ..Previous reports have named the pathogen as Peronospora lamii. Its preferential hosts belong to the Lamiaceae family including basils (Ocimum spp.), mints (Menta spp...
  7. Chen W, Delmotte F, Richard Cervera S, Douence L, Greif C, Corio Costet M. At least two origins of fungicide resistance in grapevine downy mildew populations. Appl Environ Microbiol. 2007;73:5162-72 pubmed
  8. Polesani M, Desario F, Ferrarini A, Zamboni A, Pezzotti M, Kortekamp A, et al. cDNA-AFLP analysis of plant and pathogen genes expressed in grapevine infected with Plasmopara viticola. BMC Genomics. 2008;9:142 pubmed publisher
    ..The molecular basis of compatibility and disease development in this system is poorly understood. We have carried out a large-scale cDNA-AFLP analysis to identify grapevine and P. viticola genes associated with the infection process...
  9. García Blázquez G, Göker M, Voglmayr H, Martin M, Telleria M, Oberwinkler F. Phylogeny of Peronospora, parasitic on Fabaceae, based on ITS sequences. Mycol Res. 2008;112:502-12 pubmed publisher
    ..This is particularly evident in the largest downy mildew genus, Peronospora, which contains a number of economically important pathogens...
  10. Sinapidou E, Williams K, Nott L, Bahkt S, Tör M, Crute I, et al. Two TIR:NB:LRR genes are required to specify resistance to Peronospora parasitica isolate Cala2 in Arabidopsis. Plant J. 2004;38:898-909 pubmed
    ..We have used map-based cloning and mutation analysis to study the recognition of Peronospora parasitica (RPP)2 (At) locus in Arabidopsis accession Columbia (Col-0), which is a determinant of specific ..
  11. Casimiro S, Tenreiro R, Monteiro A. Identification of pathogenesis-related ESTs in the crucifer downy mildew oomycete Hyaloperonospora parasitica by high-throughput differential display analysis of distinct phenotypic interactions with Brassica oleracea. J Microbiol Methods. 2006;66:466-78 pubmed
    Crucifer downy mildew is caused by the obligatory biotrophic oomycete Hyaloperonospora parasitica (formerly Peronospora parasitica)...
  12. Huibers R, de Jong M, Dekter R, Van den Ackerveken G. Disease-specific expression of host genes during downy mildew infection of Arabidopsis. Mol Plant Microbe Interact. 2009;22:1104-15 pubmed publisher
    ..The induction of several CS genes was found to be isolate specific. This suggests that the identified CS genes could be the direct or indirect targets of downy mildew effector proteins that promote disease susceptibility...
  13. Choi Y, Shin H, Thines M. Two novel Peronospora species are associated with recent reports of downy mildew on sages. Mycol Res. 2009;113:1340-50 pubmed publisher
    ..The objective of this study was to characterize and distinguish the different Peronospora species associated with downy mildew on sages, based on morphological and molecular data...
  14. Savory E, Granke L, Quesada Ocampo L, Varbanova M, Hausbeck M, Day B. The cucurbit downy mildew pathogen Pseudoperonospora cubensis. Mol Plant Pathol. 2011;12:217-26 pubmed publisher
    ..cubensis. In addition, topics for future research that aim to develop both short- and long-term control measures of cucurbit downy mildew are discussed...
  15. Patel D, Power J, Anthony P, Badakshi F, Pat Heslop Harrison J, Davey M. Somatic hybrid plants of Nicotiana x sanderae (+) N. debneyi with fungal resistance to Peronospora tabacina. Ann Bot. 2011;108:809-19 pubmed publisher
    ..The somatic hybrid plants were characterized using molecular, molecular cytogenetic and phenotypic approaches...
  16. Kroumova A, Shepherd R, Wagner G. Impacts of T-Phylloplanin gene knockdown and of Helianthus and Datura phylloplanins on Peronospora tabacina spore germination and disease potential. Plant Physiol. 2007;144:1843-51 pubmed short procumbent trichomes inhibit spore germination and blue mold disease caused by the oomycete pathogen Peronospora tabacina...
  17. Zhang S, Zaitlin D. Genetic resistance to Peronospora tabacina in Nicotiana langsdorffii, a South American wild tobacco. Phytopathology. 2008;98:519-28 pubmed publisher
    ..wild tobacco relative native to South America, express an incompatible interaction in response to infection by Peronospora tabacina, an oömycete that causes blue mold disease of tobacco (N...
  18. Göker M, García Blázquez G, Voglmayr H, Telleria M, Martin M. Molecular taxonomy of phytopathogenic fungi: a case study in Peronospora. PLoS ONE. 2009;4:e6319 pubmed publisher
    ..Typically, for this purpose clustering approaches to delineate molecular operational taxonomic units have been applied using arbitrary choices regarding the distance threshold values, and the clustering algorithms...
  19. Krasileva K, Zheng C, Leonelli L, Goritschnig S, Dahlbeck D, Staskawicz B. Global analysis of Arabidopsis/downy mildew interactions reveals prevalence of incomplete resistance and rapid evolution of pathogen recognition. PLoS ONE. 2011;6:e28765 pubmed publisher
    ..These data indicate that the outcome of disease and disease resistance depends on genome-for-genome interactions between the host and its pathogen, rather than single gene pairs as thought previously. ..
  20. Pruss G, Lawrence C, Bass T, Li Q, Bowman L, Vance V. The potyviral suppressor of RNA silencing confers enhanced resistance to multiple pathogens. Virology. 2004;320:107-20 pubmed
    ..HC-Pro-expressing plants are also more resistant to tomato black ring nepovirus (TBRV) and to the oomycete Peronospora tabacina. Enhanced TBRV resistance is SA-independent, whereas the response to P...
  21. Schreiber K, Bentham A, Williams S, Kobe B, Staskawicz B. Multiple Domain Associations within the Arabidopsis Immune Receptor RPP1 Regulate the Activation of Programmed Cell Death. PLoS Pathog. 2016;12:e1005769 pubmed publisher
    ..molecular mechanisms leading to this response, we examined the Arabidopsis thaliana NLR protein RECOGNITION OF PERONOSPORA PARASITICA1 (RPP1), which recognizes the Hyaloperonospora arabidopsidis effector ARABIDOPSIS THALIANA ..
  22. Iavicoli A, Boutet E, Buchala A, Metraux J. Induced systemic resistance in Arabidopsis thaliana in response to root inoculation with Pseudomonas fluorescens CHA0. Mol Plant Microbe Interact. 2003;16:851-8 pubmed
    ..thaliana ecotype Columbia with Pseudomonas fluorescens CHA0r partially protected leaves from the oomycete Peronospora parasitica...
  23. Savory E, Adhikari B, Hamilton J, Vaillancourt B, Buell C, Day B. mRNA-Seq analysis of the Pseudoperonospora cubensis transcriptome during cucumber (Cucumis sativus L.) infection. PLoS ONE. 2012;7:e35796 pubmed publisher
    ..cubensis and thus, provides a foundation for identifying mechanism(s) by which to engineer or effect resistance in the host...
  24. Ali K, Maltese F, Figueiredo A, Rex M, Fortes A, Zyprian E, et al. Alterations in grapevine leaf metabolism upon inoculation with Plasmopara viticola in different time-points. Plant Sci. 2012;191-192:100-7 pubmed publisher
  25. Mulpuri S, Liu Z, Feng J, Gulya T, Jan C. Inheritance and molecular mapping of a downy mildew resistance gene, Pl (13) in cultivated sunflower (Helianthus annuus L.). Theor Appl Genet. 2009;119:795-803 pubmed publisher
    ..9 cM and ORS 965-1 on another side at a distance of 5.8 cM. These closely linked markers to the Pl (13) gene provide a valuable basis for marker-assisted selection in sunflower breeding programs. ..
  26. Brouwer M, Lievens B, Van Hemelrijck W, Van den Ackerveken G, Cammue B, Thomma B. Quantification of disease progression of several microbial pathogens on Arabidopsis thaliana using real-time fluorescence PCR. FEMS Microbiol Lett. 2003;228:241-8 pubmed
    ..Finally, quantification of pathogen biomass in different plant genotypes with a varying degree of resistance shows the capability of this technique to be used for assessment of pathogen development in disease progression. ..
  27. Mateo A, Mühlenbock P, Rusterucci C, Chang C, Miszalski Z, Karpinska B, et al. LESION SIMULATING DISEASE 1 is required for acclimation to conditions that promote excess excitation energy. Plant Physiol. 2004;136:2818-30 pubmed
    ..We propose that the roles of LSD1 in light acclimation and in restricting pathogen-induced cell death are functionally linked. ..
  28. Sanchez L, Courteaux B, Hubert J, Kauffmann S, Renault J, Clement C, et al. Rhamnolipids elicit defense responses and induce disease resistance against biotrophic, hemibiotrophic, and necrotrophic pathogens that require different signaling pathways in Arabidopsis and highlight a central role for salicylic acid. Plant Physiol. 2012;160:1630-41 pubmed publisher
    ..Our data highlight the intricate mechanisms involved in plant protection triggered by a new type of molecule that can be perceived by plant cells and that can also act directly onto pathogens. ..
  29. Louis J, Gobbato E, Mondal H, Feys B, Parker J, Shah J. Discrimination of Arabidopsis PAD4 activities in defense against green peach aphid and pathogens. Plant Physiol. 2012;158:1860-72 pubmed publisher
    ..These results highlight distinct molecular activities of PAD4 determining particular aspects of defense against aphids and pathogens. ..
  30. Li J, Zhang H, Hu J, Liu J, Liu K. A heat shock protein gene, CsHsp45.9, involved in the response to diverse stresses in cucumber. Biochem Genet. 2012;50:565-78 pubmed publisher
    ..This suggests that CsHsp45.9 harbors broad-spectrum responses to both biotic and abiotic stresses and may play a role in downy mildew resistance in cucumber. ..
  31. Choi Y, Klosterman S, Kummer V, Voglmayr H, Shin H, Thines M. Multi-locus tree and species tree approaches toward resolving a complex clade of downy mildews (Straminipila, Oomycota), including pathogens of beet and spinach. Mol Phylogenet Evol. 2015;86:24-34 pubmed publisher
    ..In the largest downy mildew genus Peronospora, a phylogenetically complex clade includes the economically important downy mildew pathogens of spinach and ..
  32. Blanco Meneses M, Carbone I, Ristaino J. Population structure and migration of the Tobacco Blue Mold Pathogen, Peronospora tabacina into North America and Europe. Mol Ecol. 2017;: pubmed publisher
    Tobacco blue mold, caused by Peronospora tabacina, is an oomycete plant pathogen that causes yearly epidemics in tobacco (Nicotiana tabacum) in the U.S. and Europe. The genetic structure of P...
  33. Tsuchiya T, Eulgem T. EMSY-like genes are required for full RPP7-mediated race-specific immunity and basal defense in Arabidopsis. Mol Plant Microbe Interact. 2011;24:1573-81 pubmed publisher
    ..Thus, possible cooperation of AtEML members with EDM2 at the level of chromatin dynamics may link race-specific pathogen recognition to general defense mechanisms. ..
  34. Ben Naim Y, Falach L, Cohen Y. Transfer of Downy Mildew Resistance from Wild Basil (Ocimum americanum) to Sweet Basil (O. basilicum). Phytopathology. 2017;:PHYTO06170207R pubmed publisher
    Sweet basil (Ocimum basilicum) is susceptible to downy mildew caused by the oomycete foliar pathogen Peronospora belbahrii. No resistant varieties of sweet basil are commercially available...
  35. Delmotte F, Machefer V, Giresse X, Richard Cervera S, Latorse M, Beffa R. Characterization of single-nucleotide-polymorphism markers for Plasmopara viticola, the causal agent of grapevine downy mildew. Appl Environ Microbiol. 2011;77:7861-3 pubmed publisher
    ..This newly developed battery of markers will provide useful additional genetic tools for population genetic studies of this important agronomic species. ..
  36. Trigiano R, Wadl P, Dean D, Hadziabdic D, Scheffler B, Runge F, et al. Ten polymorphic microsatellite loci identified from a small insert genomic library for Peronospora tabacina. Mycologia. 2012;104:633-40 pubmed publisher
    Ten polymorphic microsatellite loci for the obligate biotrophic, oomycete pathogen of tobacco, Peronospora tabacina, were identified from a small insert genomic library enriched for GT motifs...
  37. Becker L, Poutaraud A, Hamm G, Muller J, Merdinoglu D, Carré V, et al. Metabolic study of grapevine leaves infected by downy mildew using negative ion electrospray--Fourier transform ion cyclotron resonance mass spectrometry. Anal Chim Acta. 2013;795:44-51 pubmed publisher
    ..This study points out relative high levels of disaccharides, acyl lipids and glycerophosphoinositol in inoculated samples. Sulfoquinovosyl diacylglycerols also emerge as possible metabolites involved in plant defense. ..
  38. Korves T, Bergelson J. A developmental response to pathogen infection in Arabidopsis. Plant Physiol. 2003;133:339-47 pubmed
    ..seedlings with two bacterial pathogens, Pseudomonas syringae and Xanthomonas campestris, and an oomycete, Peronospora parasitica...
  39. He M, Xu Y, Cao J, Zhu Z, Jiao Y, Wang Y, et al. Subcellular localization and functional analyses of a PR10 protein gene from Vitis pseudoreticulata in response to Plasmopara viticola infection. Protoplasma. 2013;250:129-40 pubmed publisher
    ..Taken together, these results suggested that VpPR10.2 might play an important role in host plant defense against P. viticola infection. ..
  40. Triska J, Vrchotova N, Olejnickova J, Jílek R, Sotolář R. Separation and identification of highly fluorescent compounds derived from trans-resveratrol in the leaves of Vitis vinifera infected by Plasmopara viticola. Molecules. 2012;17:2773-83 pubmed publisher
    ..Identification and structural elucidation of the fluorescent compound in the leaves of Vitis vinifera allows early detection of Plasmopara viticola invasion. ..
  41. Ott A, Spencer Phillips P, Willey N, Johnston M. Topology: a novel method to describe branching patterns in Peronospora viciae colonies. Mycol Res. 2003;107:1123-31 pubmed
    ..We applied topological methods to colonies of Peronospora viciae 48 h after inoculation of Pisum sativum leaves...
  42. Stassen J, Seidl M, Vergeer P, Nijman I, Snel B, Cuppen E, et al. Effector identification in the lettuce downy mildew Bremia lactucae by massively parallel transcriptome sequencing. Mol Plant Pathol. 2012;13:719-31 pubmed publisher
    ..Similarity clustering of secreted proteins revealed additional effector candidates. We provide a first look at the transcriptome of B. lactucae and its encoded effector arsenal. ..
  43. Thines M, Göker M, Telle S, Ryley M, Mathur K, Narayana Y, et al. Phylogenetic relationships of graminicolous downy mildews based on cox2 sequence data. Mycol Res. 2008;112:345-51 pubmed publisher
    ..In addition, all GDM are interspersed throughout the Peronosporaceae s lat., suggesting that a separate family for the Sclerosporaceae might not be justified. ..
  44. Monteiro F, Sebastiana M, Pais M, Figueiredo A. Reference gene selection and validation for the early responses to downy mildew infection in susceptible and resistant Vitis vinifera cultivars. PLoS ONE. 2013;8:e72998 pubmed publisher
    ..Taken together, our results provide guidelines for reference gene(s) selection towards a more accurate and widespread use of qPCR to study the first hours of interaction between different grapevine cultivars and P. viticola. ..
  45. Cohen Y, Ben Naim Y, Falach L, Rubin A. Epidemiology of Basil Downy Mildew. Phytopathology. 2017;107:1149-1160 pubmed publisher
    Basil downy mildew (BDM) caused by the oomycete Peronospora belbahrii is a destructive disease of sweet basil (Ocimum basilicum) worldwide...
  46. Korves T, Bergelson J. A novel cost of R gene resistance in the presence of disease. Am Nat. 2004;163:489-504 pubmed
    ..there was no fitness effect of resistance without competition but a net cost when plants were infected with Peronospora parasitica in the presence of competition...
  47. Dong X, Hong Z, Chatterjee J, Kim S, Verma D. Expression of callose synthase genes and its connection with Npr1 signaling pathway during pathogen infection. Planta. 2008;229:87-98 pubmed publisher
    ..Five CalS genes were induced by pathogen (Hyaloperonospora arabidopsis, previously known as Peronospora parasitica, the causal agent of downy mildew) or salicylic acid (SA), while the other seven CalS genes were not ..
  48. Zhang N, Pelgrom K, Niks R, Visser R, Jeuken M. Three combined quantitative trait loci from nonhost Lactuca saligna are sufficient to provide complete resistance of lettuce against Bremia lactucae. Mol Plant Microbe Interact. 2009;22:1160-8 pubmed publisher
    ..saligna, the BIL, and the combiBIL 48 h after inoculation revealed different microscopical phenotypes of resistance. The QTL differed with respect to the stage of the infection process with which they interfered. ..
  49. Bellow S, Latouche G, Brown S, Poutaraud A, Cerovic Z. Optical detection of downy mildew in grapevine leaves: daily kinetics of autofluorescence upon infection. J Exp Bot. 2013;64:333-41 pubmed publisher
    ..These results show that a pre-symptomatic and symptomatic sensing of downy mildew is possible by autofluorescence-based sensors, and this is potentially applicable in the field. ..
  50. Rouxel M, Mestre P, Baudoin A, Carisse O, Deliere L, Ellis M, et al. Geographic distribution of cryptic species of Plasmopara viticola causing downy mildew on wild and cultivated grape in eastern North America. Phytopathology. 2014;104:692-701 pubmed publisher
    ..vinifera within the sampled area, indicating that a single pathogen species may represent the primary threat to the European host species within eastern North America. ..
  51. Sedlárová M, Luhová L, Petrivalský M, Lebeda A. Localisation and metabolism of reactive oxygen species during Bremia lactucae pathogenesis in Lactuca sativa and wild Lactuca spp. Plant Physiol Biochem. 2007;45:607-16 pubmed
    ..The significance of precise balancing the intracellular level of hydrogen peroxide for variability of phenotypic expression of responses to B. lactucae infection in Lactuca spp. is discussed. ..
  52. Tantasawat P, Poolsawat O, Prajongjai T, Chaowiset W, Tharapreuksapong A. Association of RGA-SSCP markers with resistance to downy mildew and anthracnose in grapevines. Genet Mol Res. 2012;11:1799-809 pubmed publisher
    ..However, these putative associations between markers and resistance need to be verified with larger segregating populations before they can be used for marker-assisted selection. ..
  53. Holt B, Belkhadir Y, Dangl J. Antagonistic control of disease resistance protein stability in the plant immune system. Science. 2005;309:929-32 pubmed
    ..The balanced activities of RAR1 and SGT1, in concert with cytosolic HSP90, modulate preactivation R protein accumulation and signaling competence. ..
  54. Danielsen S, Lübeck M. Universally Primed-PCR indicates geographical variation of Peronospora farinosa ex. Chenopodium quinoa. J Basic Microbiol. 2010;50:104-9 pubmed publisher
    In the Andean region of South America downy mildew, caused by Peronospora farinosa, is the most important disease of quinoa (Chenopodium quinoa)...
  55. Liu J, Horstman H, Braun E, Graham M, Zhang C, Navarre D, et al. Soybean homologs of MPK4 negatively regulate defense responses and positively regulate growth and development. Plant Physiol. 2011;157:1363-78 pubmed publisher
    ..Taken together, our results indicate that GmMPK4s negatively regulate SA accumulation and defense response but positively regulate plant growth and development, and their functions are conserved across plant species...
  56. Perazzolli M, Moretto M, Fontana P, Ferrarini A, Velasco R, Moser C, et al. Downy mildew resistance induced by Trichoderma harzianum T39 in susceptible grapevines partially mimics transcriptional changes of resistant genotypes. BMC Genomics. 2012;13:660 pubmed publisher
    ..Genes identified in this work are an important source of markers for selecting novel resistance inducers and for the analysis of environmental conditions that might affect induced resistance mechanisms. ..
  57. Olczak Woltman H, Marcinkowska J, Niemirowicz Szczytt K. The genetic basis of resistance to downy mildew in Cucumis spp.--latest developments and prospects. J Appl Genet. 2011;52:249-55 pubmed publisher
    ..It can be anticipated that, in the near future, we will have more information about the genetic bases of resistance to downy mildew in Cucumis, which will facilitate efforts to breed for resistance to this pathogen. ..
  58. Cohen Y, Vaknin M, Ben Naim Y, Rubin A. Light suppresses sporulation and epidemics of Peronospora belbahrii. PLoS ONE. 2013;8:e81282 pubmed publisher
    b>Peronospora belbahrii is a biotrophic oomycete attacking sweet basil. It propagates asexually by producing spores on dichotomously branched sporophores emerging from leaf stomata...
  59. Dubey M, Shasany A, Dhawan O, Shukla A, Khanuja S. Genetic variation revealed in the chloroplast-encoded RNA polymerase beta' subunit of downy mildew-resistant genotype of opium poppy. J Hered. 2009;100:76-85 pubmed publisher
    ..This finding may lead to implication of possible role of RNA polymerase beta' subunit in resistance to DM caused by Peronospora arborescens.
  60. Borras Hidalgo O, Thomma B, Collazo C, Chacón O, Borroto C, Ayra C, et al. EIL2 transcription factor and glutathione synthetase are required for defense of tobacco against tobacco blue mold. Mol Plant Microbe Interact. 2006;19:399-406 pubmed identify tobacco (Nicotiana megalosiphon) genes involved in broad-spectrum resistance to tobacco blue mold (Peronospora hyoscyami f. sp...
  61. Chen X, Hou X, Zhang J, Zheng J. Molecular characterization of two important antifungal proteins isolated by downy mildew infection in non-heading Chinese cabbage. Mol Biol Rep. 2008;35:621-9 pubmed
    ..The two full-length cDNA clones, designated Bcchi and BcAF were isolated during the resistance response to Peronospora parasitica...
  62. Hukkanen A, Kostamo K, Kärenlampi S, Kokko H. Impact of agrochemicals on Peronospora sparsa and phenolic profiles in three Rubus arcticus cultivars. J Agric Food Chem. 2008;56:1008-16 pubmed publisher
    The main arctic bramble ( Rubus arcticus) cultivars are susceptible to downy mildew ( Peronospora sparsa), which seriously threatens the cultivation...
  63. Jing B, Xu S, Xu M, Li Y, Li S, Ding J, et al. Brush and spray: a high-throughput systemic acquired resistance assay suitable for large-scale genetic screening. Plant Physiol. 2011;157:973-80 pubmed publisher
    ..Like transgenic plants overexpressing CAMTA3, camta3-3D mutant plants exhibit compromised SAR and enhanced susceptibility to virulent pathogens, suggesting that CAMTA3 is a critical regulator of both basal resistance and SAR...
  64. Toffolatti S, Venturini G, Maffi D, Vercesi A. Phenotypic and histochemical traits of the interaction between Plasmopara viticola and resistant or susceptible grapevine varieties. BMC Plant Biol. 2012;12:124 pubmed publisher
    ..Moreover, virulent strains characterized by high fitness can represent a potential threat to the hybrid cultivation...
  65. Menke F, Van Pelt J, Pieterse C, Klessig D. Silencing of the mitogen-activated protein kinase MPK6 compromises disease resistance in Arabidopsis. Plant Cell. 2004;16:897-907 pubmed
    ..However, resistances to an avirulent strain of Peronospora parasitica and avirulent and virulent strains of Pseudomonas syringae were compromised, suggesting that MPK6 ..
  66. Sakihama Y, Shimai T, Sakasai M, Ito T, Fukushi Y, Hashidoko Y, et al. A photoaffinity probe designed for host-specific signal flavonoid receptors in phytopathogenic Peronosporomycete zoospores of Aphanomyces cochlioides. Arch Biochem Biophys. 2004;432:145-51 pubmed
    ..This is the first experimental evidence of flavonoid-binding proteins being present in zoospores, using chemically synthesized azidoflavone as photoaffinity-labeling reagent...
  67. Skrzypczak C. Occurrence of downy mildews on ornamental plants and their control by chemical compounds. Commun Agric Appl Biol Sci. 2007;72:801-4 pubmed
    ..On Alyssum saxatile downy mildew symptoms induced by Peronospora parasitica were observed during whole vegetation period with the strongest expression in early spring and late ..
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    ..Together, these results pinpoint MYC2 as a potential regulator in priming for enhanced JA-responsive gene expression during rhizobacteria-mediated ISR...
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    ..Additionally, avrRpt2 transgenic plants did not exhibit increased susceptibility to Peronospora parasitica and Erysiphe cichoracearum, suggesting that AvrRpt2 virulence activity is specific to P. syringae.
  71. Desveaux D, Subramaniam R, Despres C, Mess J, Lévesque C, Fobert P, et al. A "Whirly" transcription factor is required for salicylic acid-dependent disease resistance in Arabidopsis. Dev Cell. 2004;6:229-40 pubmed
    ..Our analysis of AtWhy1 adds a critical component to the SA-dependent plant disease resistance response...
  72. Scott J, Hay F, Wilson C. Phylogenetic analysis of the downy mildew pathogen of oilseed poppy in Tasmania, and its detection by PCR. Mycol Res. 2004;108:198-205 pubmed
    ..Previous reports have reported the pathogen as Peronospora arborescens, which is differentiated from the related species P. cristata, also known to infect Papaver spp...
  73. Zhang Y, Li X. A putative nucleoporin 96 Is required for both basal defense and constitutive resistance responses mediated by suppressor of npr1-1,constitutive 1. Plant Cell. 2005;17:1306-16 pubmed
    ..pathogenesis-related gene expression and resistance to virulent Pseudomonas syringae maculicola ES4326 and Peronospora parasitica Noco2 in snc1...
  74. Luna E, Ton J. The epigenetic machinery controlling transgenerational systemic acquired resistance. Plant Signal Behav. 2012;7:615-8 pubmed publisher
    ..Our analysis suggests that transgenerational SAR is regulated by the RdDM pathway and transmitted by hypomethylation at CpNpG sites...
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    ..8,000 Arabidopsis genes following activation of three RPP genes directed against the pathogenic oomycete Peronospora parasitica. Judicious choice of P...
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    ..IAP1 encodes a key component of ARR that acts upstream of SA accumulation and possibly downstream of UGT85A1, CDA1 and the two NAC transcription factors (ANAC055, ANAC092)...
  79. Choi Y, Thines M, Han J, Shin H. Mitochondrial phylogeny reveals intraspecific variation in Peronospora effusa, the spinach downy mildew pathogen. J Microbiol. 2011;49:1039-43 pubmed publisher
    Since about two hundred years, downy mildew caused by Peronospora effusa is probably the most economically important disease of spinach (Spinacia oleracea)...
  80. Kaur J, Thokala M, Robert Seilaniantz A, Zhao P, Peyret H, Berg H, et al. Subcellular targeting of an evolutionarily conserved plant defensin MtDef4.2 determines the outcome of plant-pathogen interaction in transgenic Arabidopsis. Mol Plant Pathol. 2012;13:1032-46 pubmed publisher
    ..However, the co-expression of extracellular and intracellular MtDef4.2 is probably required to achieve strong resistance to the hemibiotrophic pathogen F.?graminearum which grows extracellularly and intracellularly...
  81. Hosur Gnanaprakash P, Jogaiah S, Sreedhara A, Nagraj Prashanth G, Kini R, Shetty S. Association between accumulation of allene oxide synthase activity and development of resistance against downy mildew disease of pearl millet. Mol Biol Rep. 2013;40:6821-9 pubmed publisher
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  83. Casimiro S, Moura M, Zé Zé L, Tenreiro R, Monteiro A. Internal transcribed spacer 2 amplicon as a molecular marker for identification of Peronospora parasitica (crucifer downy mildew). J Appl Microbiol. 2004;96:579-87 pubmed
    The purpose of the study was to characterize the internal transcribed spacer (ITS) regions of Peronospora parasitica (crucifer downy mildew) in order to evaluate their potential as molecular markers for pathogen identification.
  84. Rose L, Bittner Eddy P, Langley C, Holub E, Michelmore R, Beynon J. The maintenance of extreme amino acid diversity at the disease resistance gene, RPP13, in Arabidopsis thaliana. Genetics. 2004;166:1517-27 pubmed
    We have used the naturally occurring plant-parasite system of Arabidopsis thaliana and its common parasite Peronospora parasitica (downy mildew) to study the evolution of resistance specificity in the host population...
  85. Song J, Lu H, McDowell J, Greenberg J. A key role for ALD1 in activation of local and systemic defenses in Arabidopsis. Plant J. 2004;40:200-12 pubmed
    ..are unable to activate systemic acquired resistance and are compromised for resistance to the oomycete pathogen Peronospora parasitica in mutants with constitutively active defenses...
  86. Hatano E, Hashidoko Y, Deora A, Fukushi Y, Tahara S. Isolation and structure elucidation of Peronosporomycetes hyphal branching-inducing factors produced by Pseudomonas jessenii EC-S101. Biosci Biotechnol Biochem. 2007;71:1601-5 pubmed
    ..cochlioides hyphae along with excessive branching at 1.0 microg per disc. These compounds are likely to affect the morphophysiological development of certain eukaryotic organisms in the terrestrial ecosystem...
  87. Gent D, Ocamb C. Predicting infection risk of hop by Pseudoperonospora humuli. Phytopathology. 2009;99:1190-8 pubmed publisher
  88. Dubey M, Shasany A, Dhawan O, Shukla A, Khanuja S. AFLP studies on downy-mildew-resistant and downy-mildew-susceptible genotypes of opium poppy. J Genet. 2010;89:9-19 pubmed
    Downy mildew (DM) caused by Peronospora arborescens, is a serious disease in opium poppy (Papaver somniferum), which has a world-wide spread...
  89. Choi H, Hwang B. The pepper extracellular peroxidase CaPO2 is required for salt, drought and oxidative stress tolerance as well as resistance to fungal pathogens. Planta. 2012;235:1369-82 pubmed publisher
    ..Taken together, these results provide evidence for the involvement of pepper extracellular peroxidase CaPO2 in plant defense responses to various abiotic stresses and plant fungal pathogens...
  90. Prabhu S, Kini K, Raj S, Moerschbacher B, Shetty H. Polygalacturonase-inhibitor proteins in pearl millet: possible involvement in resistance against downy mildew. Acta Biochim Biophys Sin (Shanghai). 2012;44:415-23 pubmed publisher
    ..Thus, PGIP appeared to be an important player in pearl millet-S. graminicola interaction leading to host resistance...
  91. Rodriguez Salus M, Bektas Y, Schroeder M, Knoth C, Vu T, Roberts P, et al. The Synthetic Elicitor 2-(5-Bromo-2-Hydroxy-Phenyl)-Thiazolidine-4-Carboxylic Acid Links Plant Immunity to Hormesis. Plant Physiol. 2016;170:444-58 pubmed publisher
    ..Taken together, our functional characterization of BHTC links defense regulation to hormesis and provides a hypothetical transcriptional scenario for the induction of hormetic root growth. ..
  92. Quentin M, Baurès I, Hoefle C, Caillaud M, Allasia V, Panabières F, et al. The Arabidopsis microtubule-associated protein MAP65-3 supports infection by filamentous biotrophic pathogens by down-regulating salicylic acid-dependent defenses. J Exp Bot. 2016;67:1731-43 pubmed publisher
    ..Our data suggest that downy mildew and powdery mildew stimulate AtMAP65-3 expression to down-regulate SA signaling for infection. ..