Glyphosate treatments for weed control affect early stages of root colonization by Tuber melanosporum but not secondary colonization
| Autor: | Alicia Cirujeda, Sergi Garcia-Barreda, Pedro Marco, Javier Parladé, Sergio Sánchez, Meritxell Puig-Pey, Eva Gómez-Molina |
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| Přispěvatelé: | Producció Vegetal, Protecció Vegetal Sostenible |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Weed Control Secondary infection Glycine Plant Science Biology 010603 evolutionary biology 01 natural sciences Quercus chemistry.chemical_compound Ascomycota Mycorrhizae Genetics Molecular Biology Soil Microbiology Ecology Evolution Behavior and Systematics Mycelium Truffle fungi General Medicine Spore Ectomycorrhiza Colonisation Horticulture chemistry Tuber melanosporum Glyphosate 010606 plant biology & botany |
| Zdroj: | IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) |
| ISSN: | 1432-1890 0940-6360 |
| DOI: | 10.1007/s00572-020-00990-8 |
| Popis: | The cultivation of the ectomycorrhizal fungus Tuber melanosporum has considerably spread in recent years throughout the world. During the first years of truffle cultivation, weed control is a key practice to improve the establishment of host trees and the proliferation of the fungus in the soil. Glyphosate is nowadays the most commonly used herbicide in Spanish truffle orchards. We explored the effect of glyphosate on the proliferation of T. melanosporum mycorrhizae, on extraradical mycelium and on the inoculum potential of T. melanosporum spores in greenhouse experiments using Quercus ilex seedlings as host plants. No detrimental effect on the secondary infection of T. melanosporum was found after three sequential glyphosate applications in young seedlings during one vegetative period. Instead, a change in the distribution of fine roots and T. melanosporum mycorrhizae along soil depth was observed. On the other hand, results indicate that high application rates of glyphosate hinder the infectivity of T. melanosporum spore inoculum, without apparent impact on the host performance. Our results suggest that glyphosate has the potential to jeopardise the role of the soil spore bank as inoculum source for the colonisation of new roots, also raising the question of whether glyphosate could hinder the presumed role of spores in sexual mating. info:eu-repo/semantics/acceptedVersion |
| Databáze: | OpenAIRE |
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