David Allan Orlovich

Learn More
Phylogeny reconstruction is challenging when branch lengths vary and when different genetic loci show conflicting signals. The number of DNA sequence characters required to obtain robust support for all the nodes in a phylogeny becomes greater with denser taxon sampling. We test the usefulness of an approach mixing densely sampled, variable non-coding(More)
BACKGROUND AND AIMS Badnaviruses and their host-integrated DNA occur in tropical crops and a few northern temperate species. Following the discovery of a badnavirus on a subantarctic island with floristic links to New Zealand, we postulated that badnaviruses exist in the New Zealand flora. Badnavirus reverse transcriptase (RT) sequences consist of variable(More)
The first collection of a macrofungal agaric species, with morphological features similar to already described Anamika species, has been found in association with animal bones in north Queensland, Australia. This species also shares features with several, commonly occurring and previously described Australian Hebeloma species. An integrated morphological(More)
The dispersal of rhizomes by waves and ocean currents allows invasive coastal plants to spread rapidly over long distances. Long-term management of these species should recognise the potential for regeneration from rhizome fragments and the likelihood of invasion or reinvasion of dunes. Here, we assess the sprouting ability of Ammophila arenaria (marram(More)
Cortinarius peraurantiacus is a truffle-like fungus associated with Leptospermum. In the protologue of this species, a second, morphologically different but closely related form is mentioned, found in association with Nothofagus s.l. Phylogenetic analysis of ITS sequences indicates that both the Leptospermum-associated and Nothofagus-associated forms are(More)
Descolea majestatica is an agaric with features described as intermediate between the genera Descolea Singer and Rozites P. Karst. (≡ Cortinarius). Molecular phylogenetic analysis of nuclear ribosomal internal transcribed spacer (ITS), large ribosomal subunit (LSU) and RNA polymerase second largest subunit (RPB2) sequences indicates that D. majestatica is(More)
Understanding the role of ectomycorrhizal fungi in plant communities is hampered by a lack of knowledge about fungal diversity. DNA barcoding of the ectomycorrhizal fungal genus Cortinarius was used to compare fungal diversity in soil from four plant communities: (i) Nothofagus forest (where Cortinarius is common and diverse), (ii) Kunzea forest (where(More)
  • 1