A new species of Melampsora on Populus yunnanensis from China |
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Authors: | Ying-Mei Liang Cheng-Ming Tian Makoto Kakishima |
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Institution: | (1) Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki, Japan;(2) The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing, 100083, China |
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Abstract: | Melampsora nujiangensis, a rust fungus found on Populus yunnanensis in China, is described as a new species. Light and scanning electron microscopy with herbarium specimens of the rust fungus
show that the shape of its urediniospores differs from that of other known species of Melampsora, and its urediniospore walls are thinner than the other species. Furthermore, in phylogenetic trees based on the DNA sequences
(28S and ITS) the rust fungus is phylogenetically separated by high bootstrap values. These results indicate that the fungus
is an isolated species among the genus Melampsora.
Contribution no. 202 from the Laboratory of Plant Parasitic Mycology, Graduate School of Life and Environmental Sciences,
University of Tsukuba, Japan |
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Keywords: | Melampsora nujiangensis Molecular phylogeny Populus rDNA Rust fungus Taxonomy Uredinales |
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