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United States Department of Agriculture

Agricultural Research Service

Related Topics

Ellen L Dally
Molecular Plant Pathology Laboratory
Microbiologist

Phone: (301) 504-6290
Fax: (301) 504-5449
Room 221

10300 BALTIMORE AVENUE
BLDG 004 BARC-WEST
BELTSVILLE , MD 207052350


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
‘Candidatus Phytoplasma hispanicum’, a novel taxon associated with Mexican periwinkle virescence disease of Catharanthus roseus -
Cauliflower is a new host of a subgroup 16SrVII-B phytoplasma associated with stunting disease -
Complete genome sequence of Spiroplasma kunkelii strain CR2-3x, causal agent of corn stunt disease in Zea mays L. -
Davis, R.E., Shao, J.Y., Dally, E.L., Zhao, Y., Gasparich, G.E., Gaynor, B.J., Athey, J.C., Harrison, N.A., Donofrio, N. 2015. Complete genome sequence of Spiroplasma kunkelii strain CR2-3x, causal agent of corn stunt disease in Zea mays L. Genome Announcements. 3(5):e01216-15.
Lilac (Syringa sp.) hosts a new ‘Ca. Phytoplasma pruni’-related strain in Utah: ribosomal RNA and secY genes distinguish the phytoplasma from previously described lineages -
Davis, R.E., Dally, E.L., Zhao, Y., Thomson, S.V., Nischwitz, C. 2016. Lilac (Syringa sp.) hosts a new ‘Ca. Phytoplasma pruni’-related strain in Utah: ribosomal RNA and secY genes distinguish the phytoplasma from previously described lineages. Plant Disease. vol. 100: page 207.
Ming aralia (Polyscias fruticosa), a new host of phytoplasma subgroup 16SrVII-B 'Candidatus Phytoplasma fraxini'- related strains, in Brazil -
Pereira, T.B., Banzato, T.C., Bedendo, I.P., Dally, E.L., Davis, R.E. 2016. Ming aralia (Polyscias fruticosa), a new host of phytoplasma subgroup 16SrVII-B 'Candidatus Phytoplasma fraxini'- related strains, in Brazil. Plant Disease. 100:645.
Unraveling the etiology of North American grapevine yellows (NAGY): multilocus genotyping and structural analysis of secY proteins distinguish NAGYIII phytoplasma strains from strains causing X-disease -
Davis, R.E., Dally, E.L., Zhao, Y., Lee, I., Wei, W., Wolf, T.K., Beanland, L., Ledoux, D.G., Johnson, D.A., Fiola, J.A., Walter-Peterson, H., Dami, I., Chien, M. 2015. Unraveling the etiology of North American grapevine yellows (NAGY): multilocus genotyping and structural analysis of secY proteins distinguish NAGYIII phytoplasma strains from strains causing X-disease. Phytopathology. 99:1087-1097.
The lilac cultivar Syringa ‘Charisma’ is a new host for ‘Candidatus Phytoplasma pruni’, the group 16SrIII, subgroup A, phytoplasma -
Green, M.J., Dally, E.L., Davis, R.E. 2015. The lilac cultivar Syringa ‘Charisma’ is a new host for ‘Candidatus Phytoplasma pruni’, the group 16SrIII, subgroup A, phytoplasma. Plant Disease. 99:886.
'Candidatus Phytoplasmas pruni', a novel taxon associated with X-disease of stone fruits, Prunus spp.: multilocus characterization based on 16S rRNA, secY, and ribosomal protein genes Reprint Icon -
Davis, R.E., Zhao, Y., Dally, E.L., Lee, I., Jomantiene, R., Douglas, S.M. 2013. 'Candidatus Phytoplasmas pruni', a novel taxon associated with X-disease of stone fruits, Prunus spp.: multilocus characterization based on 16S rRNA, secY, and ribosomal protein genes. International Journal of Systematic and Evolutionary Microbiology. 63:766-776.
'Candidatus Phytoplasma sudamericanum' a novel taxon from diseased passion fruit (Passiflora edulis f. flavicarpa Deg.) -
Davis, R.E., Zhao, Y., Dally, E.L., Jomantiene, R., Lee, I., Wei, W., Kitajima, E. 2012. 'Candidatus Phytoplasma sudamericanum' a novel taxon from diseased passion fruit (Passiflora edulis f. flavicarpa Deg.). International Journal of Systematic and Evolutionary Microbiology. 62:984-989.
First report of a new subgroup 16SrIX-E, 'Candidatus Phytoplasma phoenicium'-related, phytoplasma associated with juniper witches' broom disease in Oregon Reprint Icon -
Davis, R.E., Dally, E.L., Zhao, Y., Lee, I., Jomantiene, R., Detweiler, A.J., Putnam, M.L. 2010. First report of a new subgroup 16SrIX-E, 'Candidatus Phytoplasma phoenicium'-related, phytoplasma associated with juniper witches' broom disease in Oregon. Plant Pathology. 20:35.
First report of purple coneflower phyllody associated with a 16SrI-B phytoplasma in Maryland -
Lee, I., Bottner, K.D., Dally, E.L., Davis, R.E. 2008. First report of purple coneflower phyllody associated with a 16SrI-B phytoplasma in Maryland. Plant Disease. 92:654.
PHYLOGENY AND CHARACTERIZATION OF PHYTOPLASMAL NUSA and USE OF THE NUSA GENE IN DETECTION OF GROUP 16Srl STRAINS -
Shao, J.Y., Jomantiene, R., Dally, E.L., Zhao, Y., Lee, I., Nuss, D.L., Davis, R.E. 2006. Phyogeny and characterization of phytoplasma NusA and use of the nusA gene in detection of group 16SrI strains. Journal of Plant Pathology. 88:193-201.
PHYSICAL AND GENETIC MAP OF THE SPIROPLASMA KUNKELII CR2-3X CHROMOSOME -
Dally, E.L., Barros, T.S., Zhao, Y., Shaoping, L., Roe, B.A., Davis, R.E. 2006. Physical and genetic map of the spiroplasma kunkelii cr2-3x chromosome. Canadian Journal of Microbiology. 52:857-867.
COMPARATIVE GENOMICS OF 'CANDIDATUS PHYTOPLASMA ASTERIS' AND ACHOLEPLASMA PALMAE: COMMON ANCESTRAL GENES LOST DURING PHYTOPLASMA EVOLUTION -
Davis, R.E., Jomantiene, R., Lee, I., Zhao, Y., Hammond, R., Shao, J.Y., Dally, E.L., Dawe, A., Davis, K., Nuss, D. 2006. Comparative genomics of 'candidatus phytoplasma asteris' and acholeplasma palmae: common ancestral genes lost during phytoplasma evolution. International Organization for Mycoplasmology.
AN ACHOLEPLASMA GENOME ENCODES ENZYMES WITH THE POTENTIAL TO DEGRADE AND UTILIZE PLANT CELL WALL COMPONENTS -
Davis, R.E., Jomantiene, R., Lee, I., Zhao, Y., Hammond, R., Shao, J.Y., Dally, E.L., Dawe, A., Davis, K., Nuss, D. 2006. An acholeplasma genome encodes enzymes with the potential to degrade and utilize plant cell wall components. Phytopathology.
MOLECULAR ANALYSIS OF A CRYPTIC PLASMID ENCODING A PUTATIVE ADHESIN AND TYPE IV SECRETION SYSTEM COMPONENTS IN THE WALL-LESS PLANT PATHOGEN SPIROPLASMA KUNKELII -
Davis, R.E., Dally, E.L., Jomantiene, R., Zhao, Y., Roe, B., Lin, S., Shao, J.Y. 2005. Molecular analysis of a cryptic plasmid encoding a putative adhesin and type IV secretion system components in the wall-less plant pathogen Spiroplasma kunkelii. Plasmid. 53:179-190.
EVOLUTION OF THE PROKARYOTIC PROTEIN NUSA: COMPARISON OF NUSA IN CLOVER PHYLLODY (CPH) PHYTOPLASMA AND OTHER FIRMICUTES -
Shao, J.Y., Davis, R.E., Jomantiene, R., Dally, E.L. 2004. Evolution of the prokaryotic protein nusa: comparison of nusa in clover phyllody (cph) phytoplasma and other firmicutes. Phytopathology. p. 129.
SEQUENCING THE GENOME OF SPIROPLASMA KUNKELII GENOME: INSIGHTS TO A LIFESTYLE OF PARASITISM AND PATHOGENICITY IN INSECTS AND PLANTS -
Davis, R.E., Zhao, Y., Dally, E.L., Jomantiene, R., Shao, J.Y. 2004. Sequencing the genome of spiroplasma kunkelii genome: insights to a lifestyle of parasitism and pathogenicity in insects and plants. International Organization for Mycoplasmology. p. 63.
PHYSICAL AND GENETIC MAP OF THE SPIROPLASMA KUNKELII CR2-3X CHROMOSOME -
Dally, E.L., Barros, T., Zhao, Y., Jomantiene, R., Davis, R.E. 2004. Physical and genetic map of the spiroplasma kunkelii cr2-3x chromosome. International Organization for Mycoplasmology. p. 131-132.
AN ADHESIN AND TYPE IV SECRETION ELEMENTS ENCODED BY CRYPTIC PLASMID PSKU146 FROM THE WALL-LESS PLANT PATHOGEN SPIROPLASMA KUNKELII -
Davis, R.E., Dally, E.L., Zhao, Y., Jomantiene, R., Shao, J.Y. 2004. An adhesin and type iv secretion elements encoded by cryptic plasmid psku146 from the wall-less plant pathogen spiroplasma kunkelii. International Organization for Mycoplasmology. p. 134-135.
THE SPIROPLASMA KUNKELII GENOME: CLUES TO A PARASITIC LIFESTYLE IN INSECTS AND PLANTS -
Davis, R.E., Zhao, Y., Dally, E.L., Jomantiene, R., Lin, S., Roe, B., Shao, J.Y. 2004. The spiroplasma kunkelii genome: clues to a parasitic lifestyle in insects and plants. Phytopathology. 94(3):123.
FOLATE BIOSYNTHESIS PSEUDOGENES, FOLP AND FOLK, AND AN O-SIALOGLYCOPROTEIN ENDOPEPTIDASE GENE HOMOLOG IN THE PHYTOPLASMA GENOME -
Davis, R.E., Jomantiene, R., Zhao, Y., Dally, E.L. 2003. Folate biosynthesis pseudogenes, folp and folk, and an o-sialoglycoprotein endopeptidase gene homolog in the phytoplasma genome. DNA and Cell Biology. 22(11):697-706.
ERIGERON WITCHES' BROOM PHYTOPLASMA IN BRAZIL REPRESENTS NEW SUBGROUP VII-B IN 16S RRNA GENE GROUP VII, THE ASH YELLOWS PHYTOPLASMA GROUP -
CATHARANTHUS ROSEUS, A NEW HOST FOR THE HIBISCUS WITCHES' BROOM PHYTOPLASMA, "CANDIDATUS PHYTOPLASMA BRASILIENSE" -
MOLECULAR IDENTIFICATION AND CLASSIFICATION OF A PHYTOPLASMA ASSOCIATED WITH WITCHES' BROOM DISEASE OF BLACK RASPBERRY IN OREGON -
NONFUNCTIONAL TRNA GENE IN AN UNUSUAL EXAMPLE OF RRNA INTEROPERON SEQUENCE HETEROGENEITY IN PHYTOPLASMA -
STRAWBERRY AN EXCEPTIONAL HOST PLANT FOR PHYTOPLASMA INFECTION -
REVISED SUBGROUP CLASSIFICATION OF GROUP V PHYTOPLASMAS AND PLACEMENT OF FLAVESCENCE DOREE-ASSOCIATED PHYTOPLASMAS IN TWO DISTINCT SUBGROUPS -
DESIGN OF A POLYMERASE CHAIN REACTION FOR SPECIFIC DETECTION OF CORN STUNT SPIROPLASMA -
PHYTOPLASMAS NEWLY FOUND IN STRAWBERRY. -
PHYLLODY OF STRAWBERRY FRUIT ASSOCIATED WITH A NEW 16S RRNA GROUP III PHYTOPLASMA -
PHYTOPLASMAS NEWLY FOUND IN STRAWBERRY WITH FRUIT PHYLLODY -
SINGLE AND MIXED PHYTOPLASMA INFECTIONS IN PHYLLODY AND DWARF DISEASED CLOVER PLANTS IN LITHUANIA -
STRAWBERRY FRUIT PHYLLODY CAUSED BY PHYTOPLASMAS -
IDENTIFICATION AND PHYLOGENETIC ANALYSIS OF A NEW PHYTOPLASMA FROM DISEASEDCHAYOTE IN BRAZIL -
FIRST REPORT OF CLOVER YELLOW EDGE AND OF STRAWB2 PHYTOPLASMAS IN MARYLAND -
FIRST REPORT OF CLOVER PROLIFERATION PHYTOPLASMA IN STRAWBERRY -
PHYTOPLASMAS ASSOCIATED WITH CLOVER PHYLLODY AND CLOVER DWARF DISEASES IN LITHUANIA -
STOLBUR PHYTOPLASMA STRAINS (16S RRNA SUBGROUP XII-A) IDENTIFIED IN DISEASED CARROT (DAUCUS CAROTA L.) AND THE PSYLLID VECTOR BACTERICERA TRIGONICA IN CANARY ISLANDS, SPAIN -
DIAGNOSTICO DE UNA NUEVA ENFERMEDAD EN ZANAHORIA -
NUEVOS CASOS DE FITOPLASMAS DIAGNOSTICADOS EN ESPANA -
ENFERRMEDADES CAUSADS POR FITOPLASMAS EN VID EN ESPANA -
PHYTOPLASMAS ASSOCIATED WITH GRAPEVINE YELLOWS IN VIRGINIA BELONG TO GROUP 16SRI, SUBGROUP A (TOMATO BIG BUD PHYTOPLASMA SUBGROUP), AND GROUP 16SRIII,NEW SUBGROUP I -
INTEROPERON SEQUENCE HETEROGENEITY AND DIFFERENTIAL PCR-MEDIATED AMPLIFICATION OF SEQUENCES FROM THE TWO RRNA OPERONS IN PHYTOPLASMA -
DISTINCTION OF PLANT PATHOGENIC SPIROPLASMA SPECIES BASED ON NUCLEOTIDE SEQUENCES HOMOLOGOUS WITH SPIROPLASMAVIRUS SVTS2 DNA -
EVIDENCE THAT "FRAGARIA MULTICIPITA" IS A PHYTOPLASMA-DISEASED FRAGARIA -
UNRAVELLING OF A PLANT TAXON: MOLECULAR EVIDENCE THAT THE RARE PLANT "FRAGARIA MULTICIPITA" IS A PHYTOPLASMA-DISEASED FRAGARIA AND NOT A DISTINCT TAXONOMIC SPECIES OR FORMA -
CLASSIFICATION OF NEW PHYTOPLASMAS ASSOCIATED WITH DISEASES OF STRAWBERRY IN FLORIDA BASED ON ANALYSIS OF 16S RRNA AND RIBOSOMAL PROTEIN GENE OPERON SEQUENCES -
POSSIBLE LINK BETWEEN THE RARE PLANT TAXON "FRAGARIA MULTICIPITA" IN CANADAAND A DISEASE PROBLEM IN STRAWBERRY IN FLORIDA -
LINK BETWEEN THE RARE PLANT TAXON "FRAGARIA MULTICIPITA" IN CANADA AND A DISEASE PROBLEM IN STRAWBERRY IN FLORIDA -
DISCOVERY AND MOLECULAR CHARACTERIZATION OF NEW PHYTOPLASMAS ASSOCIATED WITH DISEASE OF STRAWBERRY IN FLORIDA -
MOLECULAR EVIDENCE FOR THE PRESENCE OF MAIZE BUSHY STUNT PHYTOPLASMA IN CORN IN BRAZIL -
Last Modified: 5/2/2016
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