@ARTICLE{TreeBASE2Ref28776, author = {Fatemeh Salmaninezhad and Reza Mostowfizadeh-Ghalamfarsa}, title = {Three new Pythium species from rice paddy fields}, year = {2019}, keywords = {Morphology, Pathogenicity, Phylogeny, Pythium, Taxonomy }, doi = {10.1080/00275514.2018.1543486}, url = {http://}, pmid = {}, journal = {Mycologia}, volume = {111}, number = {2}, pages = {274--290}, abstract = {In an investigation of the oomyceteous flora in rice paddy fields of Fars Province, Iran, three new Pythium species were isolated and identified on the basis of morphological features and molecular phylogenetic characteristics. Their unique morphological traits including sexual and asexual structural characteristics (i.e. sporangial type; oogonial type and ornamentations; type and the number of antheridia per oogonium; and oospore type), cardinal temperatures, and colony morphology on various media separated them from other known species. Using nuclear and mitochondrial genes, each species formed discrete lineages in phylogenetic analyses based on Bayesian interference and maximum likelihood methods. Pathogenicity tests including pre- and post-emergence damping-off were also carried out. This paper describes these three new Pythium species including Py. heteroogonium, Py. longipapillum, and Py. oryzicollum and compares them with their related taxa via morphological features and molecular characteristics. } }

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