Ceratocystis tiliae sp. nov., a wound pathogen on Tilia americana
| Autor: | Acelino C. Alfenas, Thomas C. Harrington, Rodrigo de Barros Freitas, Douglas McNew, Leonardo S. S. Oliveira |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
0301 basic medicine Physiology Fungus Ceratocystis 01 natural sciences Microbiology 03 medical and health sciences Ascomycota Phylogenetics Tilia DNA Ribosomal Spacer Botany Genetics DNA Fungal Molecular Biology Ribosomal DNA Phylogeny Ecology Evolution Behavior and Systematics Plant Diseases biology Phylogenetic tree Cell Biology General Medicine 030108 mycology & parasitology biology.organism_classification Ceratocystis fimbriata Taxonomy (biology) 010606 plant biology & botany |
| Zdroj: | Mycologia. 107:986-995 |
| ISSN: | 1557-2536 0027-5514 |
| DOI: | 10.3852/14-273 |
| Popis: | Species in the North American clade (NAC) of the Ceratocystis fimbriata complex are mostly weak pathogens that infect native tree hosts through fresh wounds. Isolations from discolored tissue of wounded Tilia americana (basswood) in Iowa and Nebraska yielded a Ceratocystis species that was similar to but distinct from isolates of C. variospora from other hosts. Sequences of 28S rDNA showed that isolates from basswood did not differ from C. variospora, but there were minor differences in ITS rDNA sequences. The DNA sequences of a portion of the Cerato-platanin gene and TEF1α showed the basswood fungus to be a unique lineage. Cross inoculations in two experiments showed that the basswood isolates and C. variospora isolates from Quercus spp. were most aggressive to their respective hosts. Isolates from basswood grew slower and were less pigmented than C. variospora isolates from Quercus spp. The basswood fungus thus is distinguished from C. variospora based on phylogenetic analyses and phenotype and is herein described as C. tiliae sp. nov. |
| Databáze: | OpenAIRE |
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