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| Álvarez,Carlos E; Fernández-Falcón,Marino; Hernández,M. Mercedes. |
| Two cultivars ('Succession II' and 'Tango') of Leucospermum cordifolium were studied over three years in commercial plantations with optimum yields located on subtropical La Palma Island (Canarian Archipelago). Four foliar samplings were taken per year to determine the evolution of the N, P, and K contents over time and to determine the optimal month for foliar standard sampling. Foliar chlorophyll activity and the foliar standard concentrations of macro- and micronutrients were determined. Soil samples were also taken. Both cultivars developed well in soils with acid and slightly acid pH, low and high organic matter content, and in some cases, high available P concentrations, though Proteaceae is generally considered P sensitive. Chlorophyll activity... |
| Tipo: Journal article |
Palavras-chave: Leaf analysis; Protea; 'Succession II'; 'Tango'. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100008 |
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| Crous, P.W.; Summerell, B.A.; Mostert, L.; Groenewald, J.Z.. |
| Cheirosporium gen. nov. is characterised by the production of sporodochial conidiomata, semi-macronematous to macronematous onidiophores that possess several distinct sterile branches, and cheiroid, smooth-walled conidia with rhexolytic secession. The 28S rDNA and ITS rDNA operon of this taxon were amplified and sequenced. A BLAST search revealed low homology between Cheirosporium triseriale and existing sequences in public databases, supporting the hypothesis that the species is new to science. Phylogenetic analysis showed that C. triseriale groups with Dictyosporium and allied species, and nests within the Pleosporales (Dothideomycetes, Ascomycota).heirosporium is morphologically distinct from the cheirosporous genera Cheiromyces, Cheiromycina,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: ITS; Leucadendron; Leucospermum; Mycosphaerella; Protea; Teratosphaeria. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/532268 |
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| Roets, F.; Wingfield, B.D.; Beer, Z.W. de; Wingfield, M.J.; Dreyer, L.L.. |
| The genus Ophiostoma (Ophiostomatales) has a global distribution and species are best known for their association with bark beetles (Curculionidae: Scolytinae) on conifers. An unusual assemblage of these fungi is closely associated with the African endemic plant genus Protea (Proteaceae). Protea-associated Ophiostoma species are ecologically atypical as they colonise the fruiting structures of various serotinous Protea species. Seven species have been described from this niche in South Africa. It has been speculated that novel species may be present in other African countries where these host plants also occur. This view was corroborated by recent collections of two unknown species from Protea caffra trees in Zambia. In the present study we evaluate the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Β-tubulin; ITS; Ophiostoma; Phylogeny; Protea; Taxonomy. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/532360 |
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