Interannual dynamics of Tuber melanosporum and fungal communities in productive black truffle orchards amended with truffle nests.

Autor:	Garcia-Barreda S; Departamento de Ciencia Vegetal, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, 50059 Zaragoza, Spain.; Instituto Agroalimentario de Aragón - IA2 (CITA-Universidad de Zaragoza), C/ Miguel Servet 177, 50013 Zaragoza, Spain., Marco P; Departamento de Ciencia Vegetal, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, 50059 Zaragoza, Spain.; Instituto Agroalimentario de Aragón - IA2 (CITA-Universidad de Zaragoza), C/ Miguel Servet 177, 50013 Zaragoza, Spain., Bonito G; Department of Plants, Soil and Microbial Sciences, Michigan State University, 1066 Bogue St, East Lansing, MI 48824, USA., Parladé J; Protecció Vegetal Sostenible, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Ctra. Cabrils km 2, E-08348 Cabrils, Spain., Sánchez S; Departamento de Ciencia Vegetal, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, 50059 Zaragoza, Spain.; Instituto Agroalimentario de Aragón - IA2 (CITA-Universidad de Zaragoza), C/ Miguel Servet 177, 50013 Zaragoza, Spain., González V; Instituto Agroalimentario de Aragón - IA2 (CITA-Universidad de Zaragoza), C/ Miguel Servet 177, 50013 Zaragoza, Spain.; Departamento de Sistemas Agrícolas, Forestales y Medio Ambiente, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, 50059 Zaragoza, Spain., Larena I; Departamento de Protección Vegetal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)-CSIC, Ctra. de La Coruña km 7, 28040 Madrid, Spain., Benucci GMN; Department of Plants, Soil and Microbial Sciences, Michigan State University, 1066 Bogue St, East Lansing, MI 48824, USA.; Great Lakes Bioenergy Research Center, 1129 Farm Lane, East Lansing, MI 48824, USA.
Jazyk:	angličtina
Zdroj:	FEMS microbiology ecology [FEMS Microbiol Ecol] 2023 Jul 21; Vol. 99 (8).
DOI:	10.1093/femsec/fiad084
Abstrakt:	Truffle growers devote great efforts to improve black truffle productivity, developing agronomic practices such as 'truffle nests' (peat amendments that are supplemented with truffle spore inoculum). It has been hypothesized that improved fruiting associated with nests is linked to stimulation of truffle mycelia previously established in soil or to changes generated in soil fungal community. To assess this, we used real-time PCR to quantify black truffle extraradical mycelium during 2 years after nests installation. We also characterized the fungal community via high-throughput amplicon sequencing of the ITS region of rRNA genes. We found that neither the abundance of truffle mycelium in nests nor in the soil-nest interphase was higher than in the bulk soil, which indicates that nests do not improve mycelial growth. The fungal community in nests showed lower richness and Shannon index and was compositionally different from that of soil, which suggests that nests may act as an open niche for fungal colonization that facilitates truffle fruiting. The ectomycorrhizal fungal community showed lower richness in nests. However, no negative relationships between amount of truffle mycelium and reads of other ectomycorrhizal fungi were found, thus countering the hypothesis that ectomycorrhizal competition plays a role in the nest effect. (© The Author(s) 2023. Published by Oxford University Press on behalf of FEMS.)
Databáze:	MEDLINE
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