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Green and brown bridges between weeds and crops reveal novel Diaporthe species in Australia

Thompson, S. M. and Tan, Y. P. and Shivas, R. G. and Neate, S. M. and Morin, L. and Bissett, A. and Aitken, E. A. B. (2015) Green and brown bridges between weeds and crops reveal novel Diaporthe species in Australia. Persoonia - Molecular Phylogeny and Evolution of Fungi, 35 (1). pp. 39-49.

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Article Link(s): http://dx.doi.org/10.3767/003158515X687506

Publisher URL: http://www.ingentaconnect.com/content/nhn/pimj/2015/00000035/00000001/art00003http://dx.doi.org/10.3767/003158515X687506

Abstract

Diaporthe (syn. Phomopsis) species are well-known saprobes, endophytes or pathogens on a range of plants. Several species have wide host ranges and multiple species may sometimes colonise the same host species. This study describes eight novel Diaporthe species isolated from live and/or dead tissue from the broad acre crops lupin, maize, mungbean, soybean and sunflower, and associated weed species in Queensland and New South Wales, as well as the environmental weed bitou bush (Chrysanthemoides monilifera subsp. rotundata) in eastern Australia. The new taxa are differentiated on the basis of morphology and DNA sequence analyses based on the nuclear ribosomal internal transcribed spacer region, and part of the translation elongation factor-1α and ß-tubulin genes. The possible agricultural significance of live weeds and crop residues ('green bridges') as well as dead weeds and crop residues ('brown bridges') in aiding survival of the newly described Diaporthe species is discussed.

Item Type:Article
Business groups:Biosecurity Queensland
Keywords:ALTERNATE WEED HOSTS MULTI-LOCUS PHOMOPSIS PHYLOGENY TAXONOMY
Deposited On:09 Feb 2016 01:35
Last Modified:15 Feb 2016 04:39

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