Phyllosticta species on orchids (Orchidaceae), introducing Phyllosticta speewahensis sp. nov. (Phyllostictaceae, Ascomycota) from northern Australia

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Shivas, R. G., Tan, Y. P. and Grice, K. R.E. (2013) Phyllosticta species on orchids (Orchidaceae), introducing Phyllosticta speewahensis sp. nov. (Phyllostictaceae, Ascomycota) from northern Australia. Sydowia, 65 (1). pp. 139-146.

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Article Link: http://www.sydowia.at/syd65-1/T10-Shivas.html

Abstract

Several species of Phyllosticta (syn. Guignardia) have been described from orchids worldwide. A new species, Phyllosticta speewahensis, is proposed for a specimen isolated from leaf spots on a hybrid Vanda orchid in northern Queensland, Australia. Phylogenetic analysis of the nrDNA internal transcribed spacer region (ITS) and partial translation elongation factor 1-alpha (TEF1) gene sequences showed that P. speewahensis is most closely related to P. hostae. The likelihood that orchids harbour further cryptic species of endophytic and pathogenic Phyllosticta species is discussed.

Item Type:	Article
Business groups:	Biosecurity Queensland, Horticulture and Forestry Science
Keywords:	cryptic species, Phyllosticta, molecular phylogeny, taxonomy, Orchidaceae.
Subjects:	Plant culture > Flowers and flower culture. Ornamental plants Plant pests and diseases Science > Biology
Live Archive:	24 Sep 2014 05:36
Last Modified:	09 Dec 2022 03:50

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