Long-term soil alteration in historical charcoal hearths affects Tuber melanosporum mycorrhizal development and environmental conditions for fruiting
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Date
2017
Authors
García Barreda, SergiMolina Grau, Sara
Forcadell, Ricardo
Sánchez Durán, Sergio
Reyna, Santiago
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articleArticle
Abstract
root colonisation and relative abundance of T. melanosporum were significantly lower in hearth than in control soils. Hearth soils showed significantly lower resistance to penetration, larger temperature fluctuation, reduced plant cover and reduced herbaceous root abundance. The results do not support the hypothesis that soil from historical charcoal hearths currently enhances development of T. melanosporum mycorrhizas. However, whether this is due to increased infectivity of native ectomycorrhizal communities or to worse conditions for development of T. melanosporum mycorrhizas remains unresolved. Native ectomycorrhizal communities in hearths showed altered composition, although not a clear change in infectivity or richness. Direction of change in hearth soil properties is compared to alteration occurring in soils spontaneously producing T. melanosporum. The interest of these changes to improve T. melanosporum fruiting in plantations is discussed.
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Mycorrhiza Volume 27, pages 603–609, (2017)
AGROVOC subjects
Tuber melanosporumTemperatura del suelo
Estructura del suelo
Ectomicorrizas
Calentamiento del suelo
Sponsorship
This work was funded by INIA (Government of Spain) project PET2007-13-C07-04. We would like to thank Dr Cristina Gimeno (Fundación CEAM) for her advice with CO2 efflux measures.