Soil spatial distribution in a smut fungus-annual grass interaction: exploring patterns to understand disease dynamics at plot scale
| Autor: | M. Teresa Mas, Antoni M.C. Verdú |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Loose smut Plant Science Biology Spatial distribution 01 natural sciences Males herbes Propagule Digitaria sanguinalis Enginyeria agroalimentària::Ciències de la terra i de la vida::Microbiologia [Àrees temàtiques de la UPC] Spikelets Spatial analysis Ecology Evolution Behavior and Systematics Plant disease Ecology Ecological Modeling fungi Fungi 04 agricultural and veterinary sciences biology.organism_classification Spore Within-population variation Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Soil horizon Ustilospores 010606 plant biology & botany Ustilago syntherismae |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| DOI: | 10.1016/j.funeco.2018.01.003 |
| Popis: | Infection of large crabgrass by loose smut occurs in the first centimetres of the soil profile. To understand the spatial-temporal disease dynamics, we try to find out the importance of the spatial distribution of spores and seeds in a field. Two soil sampling strategies were carried out after doing soil tillage, and propagules were counted; in the following season the level of disease was assessed. There was spatial autocorrelation in the case of the spores, but not in that of the seeds. Spores were arranged in a single patch. A significant relationship was found between the density of spores and the percentage of diseased host plants in the next season. Both variables displayed a spatial structure based on multiple regression. The role that the different zones of the field, varying in spore abundance, may play in the coexistence of both partners is discussed in the light of the results. |
| Databáze: | OpenAIRE |
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