| Autor: |
Ash, Gavin J., Stodart, Benjamin, Sakuanrungsirikul, Suchirat, Anschaw, Emma, Crump, Nigel, Hailstones, Deborah, Harper, John D.I. |
| Zdroj: |
Mycologia; January 2010, Vol. 102 Issue: 1 p54-61, 8p |
| Abstrakt: |
A large number of isolates of Phomopsissp. have been collected from the weed Carthamus lanatus(saffron thistle) in Australia, and their potential as biological control agents for weeds of the Asteraceae has been demonstrated. An analysis of their genetic diversity and a multigene phylogenetic analysis were undertaken to ascertain whether these isolates were distinct from other species of Phomopsisthat commonly attack crop species in Australia. Minimal variation was found between the Phomopsisspp. isolated from saffron thistle, except two isolates that appeared to share identity with Diaporthe helianthiiand P. viticola. Analysis of the selected isolates from saffron thistle with the nucleotide sequence of the partial ITS and tef1-α regions demonstrated that the sequences were distinct from all other species of Phomopsisso far described from crops in Australia. These findings provide strong support for the recognition of these isolates as a separate species of Phomopsis. The implications of these findings are discussed in relation to biological control of saffron thistle. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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