|
KMID : 1160220170450030123
|
|
Mycobiology
2017 Volume.45 No. 3 p.123 ~ p.128
|
|
|
Bipolaris marantae sp. nov., A Novel Helminthosporoid Species Causing Foliage Blight of the Garden Plant Maranta leuconeura in Brazil
|
|
Lourenco Carla Cristina Gomes
Alves Janaina Lana
Guatimosim Eduardo
Colman Adans
Barreto Robert Weingart
|
|
|
Abstract
|
|
|
|
A severe leaf spot, turning to foliage blight, was observed on leaves of Maranta leuconeura growing in a garden in Brazil (state of Rio de Janeiro) in 2015. A dematiaceous hyphomycete bearing a morphology typical of a helminthosporoid fungi was regularly found in association with diseased tissues. The fungus was isolated and pathogenicity was demonstrated through the completion of Koch’s postulates. A morphology and molecular analysis led to the conclusion that the fungus belonged to the genus Bipolaris, which is characterized by having fusiform conidia, externally thickened and truncate hila and a bipolar pattern of germination. Additionally, homology of internal transcribed spacer and GAPDH sequences with sequences of other Bipolaris species, confirmed its generic placement. A phylogenetic study also indicated clearly that the fungus on M. leuconeura is phylogenetically distinct from related species of this genus, leading to the proposal of the new species Bipolaris marantae.
|
|
|
KEYWORD
|
|
|
Asexual morph, Ornamental, Pathogens, Phylogeny, Pleosporales, Taxonomy
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
 
|