Phytophthora has been rebuilt to fix security-related problems and to restore GIS tools. These tools allow users to visualize the geospatial, temporal, and environmental contexts of Phytophthora discoveries. The next phase is to update species information and add data derived from large-scale surveys. If you have suggestions and requests to make the database better, please contact Seogchan Kang (sxk55@psu.edu).
* This species has not yet been formally described and should be treated as such.
Genus wide phylogeny for Phytophthora using four mitochondrial loci (cox2, nad9, rps10 and secY; 2,373 nucleotides). Maximum likelihood branch lengths shown. Numbers on nodes represent bootstrap support values for maximum likelihood (top), maximum parsimony (middle) and Bayesian posterior probabilities as percentages (bottom). Nodes receiving significant support (>95%) in all analysis are marked with an asterisk (*). Scale bar indicates number of substitutions per site.(Martin, Blair and Coffey, unpublished).
[ Click the tree to enlarge it. ]
Phytophthora sp. niederhauseria is a non-papillate heterothallic species in clade 7b (closely affiliated with P. sojae) that was initially described from Arborvitae and English Ivy plants grown in greenhouses in NC (Abad and Abad, 2003). Subsequently is have been recovered from a range of hosts in different parts of the world (see below).
Abad Z. G., Abad, J. A., 2003. Advances in the integration of morphological and molecular characterization in the genus Phytophthora: The case of P. niederhauseria sp. nov.. Phytopathology 93(Suppl. 6): S1 (Abstract).
Burgess, T. I., Webster, J. L., Ciampini, J. A., White, D., Hardy, G. E. S., Stukely, M. J. C. 2009. Re-evaluation of Phytophthora species isolated during 30 years of vegetation health surveys in Western Australia using molecular techniques. Plant Disease 93:215-223
Cacciola, S. O., Scibetta, S., Martini, P., Rizza, C., Pane, A. 2009. Phytophthora taxon niederhauserii, a new root and crown rot pathogen of Banksia spp. in Italy. Plant Disease, 93:1216.
Cacciola, S. O., Scibetta, S., Pane, A., Faedda, R., Rizza, C. 2009. Callistemon citrinus and Cistus salvifolius, two new hosts of Phytophthora taxon niederhauserii in Italy. Plant Disease 93: 1075.
Herrero, M. L., de Cock, A., Klemsdal, S. S., Toppe, B., 2008. Phytophthora taxon niederhauserii in greenhouse pot plants in Norway. Journal of Plant Pathology 90(Suppl. 2): S2.188 (Abstract).
Moralejo, E., Pérez-Sierra, A. M., Álvarez, L. A., Belbahri, L., Lefort, F., Descals, E. 2009. Multiple alien Phytophthora taxa discovered on diseased ornamental plants in Spain. Plant Pathology 58:100-110.
Pérez-Sierra, A., León, M., Álvarez, L. A., Alaniz, S., Berbegal, M., García-Jiménez, J., Abad-Campos, P. 2010. Outbreak of a new Phytophthora sp. associated with severe decline of almond trees in Eastern Spain. Plant Disease, 94:534-541