Forestry, Agricultural and Biological Sciences, Soil Science, Agronomy and Crop Science
15
Scopus Publications
Scopus Publications
Into the void: ECM fungal communities involved in the succession from rockroses to oak stands Ignacio Sanz-Benito, Tim Stadler, Olaya Mediavilla, María Hernández-Rodríguez, Juan Andrés Oria-de-Rueda, Tatek Dejene, József Geml, Pablo Martín-Pinto Scientific Reports, 2023 Oak forests accompanied byCistusspecies are a common landscape in the Mediterranean basin. It is argued thatCistusdominated fields serve as recruitment areas forQuercusseedlings, as they help in the transmission of the fungal community through vegetative succession in these ecosystems. To test these assumptions, we analyzed the fungal community in terms of its richness and composition, taking into account the effects of host (Oaksvs.Cistus) and forest structure, mainly based on age. Edaphic variables related to the different structures were also analyzed to examine how they evolve through succession and relate to shifts in the fungal community. No differences in fungal richness were observed between oldCistusstands and youngerQuercus, while a brief increase in ECM richness was observed. Community composition also showed a greater overlap between oldCistusand youngQuercusstands. We suggest that the most important step in fungal transfer from one host to another is the shift from the oldestCistusfields to the youngestQuercusstands, with the generaAmanita,Cortinarius,Lactarius,Inocybe,Russula, andTomentellaprobably playing a major role. In summary, our work has also revealed the network of fungal community structure in the succession ofCistusto Oak stands, it would suggest that the fungi share niches and significantly enhance the ecological setting of the transition fromCistustoOakstands.
Mosaic forest management at landscape scale to enhance fungal diversity and production, in a context of forest fire-prevention in Mediterranean ecosystems Alba Magarzo, Ignacio Sanz-Benito, Olaya Mediavilla, María Hernández-Rodríguez, Juan Andrés Oria-de-Rueda, Tatek Dejene, Pablo Martín-Pinto Ecological Indicators, 2023 Landscapes of oak (Quercus) forests alternated with extensive fields dominated by rockroses (Cistus) are widespread throughout the Mediterranean Basin. Due to the recurrency of fires and the mycological potential of both Quercus forests and Cistus fields, adequate management of this landscape is a key forest management objective. Although both Quercus and Cistus species are considered super-productive in terms of fungal production and diversity, fungal diversity and productivity vary depending on the stand age and structure. The aim of this study was to assess the complementary mycological potential of these ecosystems by studying sporocarp production, diversity, and community composition to elucidate management practices that would enhance fungal diversity and productivity within a fire management framework. We collected sporocarps over a period of four consecutive years (2012–2015) in young Cistus plots (1-m tall Cistus), old Cistus plots (2-m tall Cistus), and Quercus Forest plots. Our analyses showed that age as well as dominant vegetation influences sporocarp production, diversity, and richness, with young Cistus stands most suited to high levels of sporocarp productivity and diversity. In addition, a progressive restructuring of the fungal community was observed from a large, diverse community in Cistus early-stage stands to a smaller, less diverse but well-defined community in Quercus stands, transiting through an intermediate composition in old Cistus fields. Based on our findings, we suggest that a management process that not only favors stand rejuvenation would achieve greater sporocarp production and richness, including edible commercial species, while reducing the amount of fuel. In addition, the differentiated diversity of the Quercus stands plays an important role in terms of landscape diversity, being necessary the recommendation of a rejuvenation management in order to protect this stands associated diversity. We propose that these goals could be best achieved with a mosaic landscape model to connect the different stages of succession, enabling greater interconnectivity and, hence, allowing the presence of different “fungal stages” at the landscape level.
Co-responses of bacterial and fungal communities to fire management treatments in Mediterranean pyrophytic ecosystems Pablo Martín-Pinto, Tatek Dejene, Gian Maria Niccolò Benucci, Olaya Mediavilla, María Hernández-Rodríguez, József Geml, Petr Baldrian, Ignacio Sanz-Benito, Jaime Olaizola, Gregory Bonito, Juan Andrés Oria-de-Rueda Science of the Total Environment, 2023 Cistus scrublands are pyrophytic ecosystems and occur widely across Mediterranean regions. Management of these scrublands is critical to prevent major disturbances, such as recurring wildfires. This is because management appears to compromise the synergies necessary for forest health and the provision of ecosystem services. Furthermore, it supports high microbial diversity, opening questions of how forest management practices impact belowground associated diversity as research related to this issue is scarce. This study aims to investigate the effects of different fire prevention treatments and site history on bacterial and fungi co-response and co-occurrence patterns over a fire-risky scrubland ecosystem. Two different site histories were studied by applying three different fire prevention treatments and samples were analyzed by amplification and sequencing of ITS2 and 16S rDNA for fungi and bacteria, respectively. The data revealed that site history, especially regarding fire occurrence, strongly influenced the microbial community. Young burnt areas tended to have a more homogeneous and lower microbial diversity, suggesting environmental filtering to a heat-resistant community. In comparison, young clearing history also showed a significant impact on the fungal community but not on the bacteria. Some bacteria genera were efficient predictors of fungal diversity and richness. For instance, Ktedonobacter and Desertibacter were a predictor of the presence of the edible mycorrhizal bolete Boletus edulis. These results demonstrate fungal and bacterial community co-response to fire prevention treatments and provide new tools for forecasting forest management impacts on microbial communities.
Influence of stand age and site conditions on ectomycorrhizal fungal dynamics in Cistus ladanifer-dominated scrubland ecosystems Pablo Martín-Pinto, Juan Andrés Oria-de-Rueda, Tatek Dejene, Olaya Mediavilla, María Hernández-Rodríguez, José A. Reque, Ignacio Sanz-Benito, María Santos, József Geml Forest Ecology and Management, 2022 Cistus ladanifer-dominated ecosystems are widely distributed in the Western Mediterranean basin and are affected by recurrent fires. Although these scrublands were traditionally considered unproductive, these systems provide significant ecological benefits via mushroom production, which has increased interest in better understanding these ecosystems to restore and promote productivity. We analyzed 48 plots located in Supra- and MesoMediterranean regions in western Spain to assess the soil fungal community and their ecological drivers using ITS2 rDNA Illumina Miseq. The study plots comprised young (early-stage successional stands), middle- (middle-stage successional stands), and late-stage stands. Shannon diversity index values for total fungi were higher under a MesoMediterranean than under a SupraMediterranean climate type, whereas the richness values for ectomycorrhizal (EcM) taxa were higher in late-stage stands than in the younger stands. EcM community composition was influenced by stand age, climatic variables and edaphic parameters. These C. ladanifer-dominated ecosystems support diverse fungi, including edible species such as Boletus, Lactarius, and Laccaria, under specific precipitation, temperature, and late-stage stand factor conditions. Although forest management cannot modify temperature and precipitation, management strategies that consider mosaic landscapes to reduce the severity of potential fires and that retain late successional stands could provide suitable habitats for promoting fungal diversity, production, and function in these scrubland systems.
Fungal and Bacterial Communities in Tuber melanosporum Plantations from Northern Spain Celia Herrero de Aza, Sergio Armenteros, James McDermott, Stefano Mauceri, Jaime Olaizola, María Hernández-Rodríguez, Olaya Mediavilla Forests, 2022 Tuber melanosporum (Ascomycota, Pezizales) is an ectomycorrhizal fungus that produces highly appreciated hypogeous fruiting bodies called black truffles. The aim of this paper was to research the composition of ectomycorrhiza-associated fungal and bacterial communities in T. melanosporum oak plantations. Results of this paper showed the competitive effect of T. melanosporum on other fungal species, especially other mycorrhizal and pathogenic species. T. melanosporum was shown to be associated mainly with bacteria, some of them important for their properties as mycorrhizal helper bacteria. A dendrogram analysis of co-occurrence showed that T. melanosporum tended to co-occur with the following bacteria species: Singulisphaera limicola, Nannocistis excedens and Sporosarcina globispora. In addition, it was linked to fungal species such as Mortierella elongata, M. minutissima, Cryptococcus uzbekistanensis, C. chernovii and C. aerius. This study provides an exhaustive analysis of the diversity, structure and composition of fungal and bacterial communities associated with T. melanosporum to enhance understanding of the biology, composition and role of these communities in truffle plantations.
Record breaking mushroom yields in Spain Josu G. Alday, José Antonio Bonet, Juan Andrés Oria-de-Rueda, Juan Martínez-de-Aragón, Jorge Aldea, Pablo Martín-Pinto, Sergio de-Miguel, María Hernández-Rodríguez, Fernando Martínez-Peña Fungal Ecology, 2017
