Mycobiota of the weed Conyza canadensis (Asteraceae) in Brazil
| Autor: | Lidiane L. Duarte, Fabiana Maria Coutinho Santos, Robert W. Barreto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Morphology Mycobiota Plant Weeds 01 natural sciences DNA Ribosomal Electron Transport Complex IV 03 medical and health sciences Cercospora Peptide Elongation Factor 2 Taxonomy novelties Botany DNA Ribosomal Spacer Genetics Conyza canadensis Cluster Analysis DNA Fungal Ecology Evolution Behavior and Systematics Phylogeny Plant disease Phylogenetic analysis biology Alternaria tenuissima Fungi Aecidium Genes rRNA RNA Fungal Sequence Analysis DNA Biodiversity 030108 mycology & parasitology biology.organism_classification Infectious Diseases Leptosphaerulina RNA Ribosomal Phoma Conyza Brazil 010606 plant biology & botany |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| Popis: | Conyza canadensis is a noxious and notably problematic weed in Brazil whose control is greatly challenging due to the appearance, in the last years, of herbicide resistant populations. An investigation regarding the associated pathogenic fungi of this plant was conducted in Brazil aimed at starting a biological control program to help mitigate its economic impact. Ten fungal species were yielded and described: two ascomycetes (Leptosphaerulina conyzicola sp. nov. and Wentiomyces melioloides), five hyphomycete asexual morphs (Alternaria tenuissima, Cercospora conyzicola sp. nov., Cercosporella virgaureae, and Fusarium fujikuroi), two coelomycete asexual morphs (Phoma conyzaphthora sp. nov., Septoria erigerontis), one rust fungus (Aecidium conyzicola sp. nov.), and one oomycete (Basidiophora entospora). Four among the fungi that were collected represent new taxa, and the others represented either new host-records of known fungal species or new geographic records or both, except for C. virgaureae that had already been recorded on C. canadensis in Brazil. None of the discovered species have any potential to be used as a mycoherbicide or to be introduced somewhere else, nevertheless, the knowledge about this mycobiota will help guide the selection of potential biocontrol agents to be introduced in Brazil. |
| Databáze: | OpenAIRE |
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