October
2002
, Volume
86
, Number
10
Pages
1,142
-
1,148
Authors
Thereza S. L.
Barros
,
USDA-ARS, Molecular Plant Pathology Laboratory, Beltsville, MD 20705, USA, and Laboratório de Virologia e Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, 70919-970, Brazil
;
Robert E.
Davis
,
USDA-ARS, Molecular Plant Pathology Laboratory, Beltsville, MD
;
Renato O.
Resende
,
Laboratorio de Virologia e Microscopia Eletrônica, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, 70919-970, Brazil
; and
Ellen L.
Dally
,
USDA-ARS, Molecular Plant Pathology Laboratory, Beltsville, MD
Affiliations
Go to article:
RelatedArticle
Accepted for publication 23 May 2002.
Abstract
ABSTRACT
A previously undescribed phytoplasma, Erigeron witches'-broom phytoplasma, was detected in diseased plants of Erigeron sp. and Catharanthus roseus exhibiting symptoms of witches'-broom and chlorosis in the state of São Paulo, Brazil. On the basis of restriction fragment length polymorphism (RFLP) analysis of 16S rDNA amplified in the polymerase chain reaction (PCR), Erigeron witches'-broom phytoplasma was classified in group 16SrVII (ash yellows phytoplasma group), new subgroup VII-B. Phylogenetic analysis of 16S rDNA sequences indicated that this phytoplasma represents a new lineage that is distinct from that of described strains of ash yellows phytoplasma. Erigeron witches'-broom phytoplasma is the first member of the ash yellows phytoplasma group to be recorded in Brazil.
JnArticleKeywords
Additional keywords:
MLO,
mycoplasmalike organism,
phylogeny
Page Content
ArticleCopyright
The American Phytopathological Society, 2002
