Effects of soil tillage on Tuber magnatum development in natural truffières

Salerni, Elena; Iotti, Mirco; Leonardi, Pamela; Gardin, Lorenzo; D'Aguanno, Maria; Perini, Claudia; Pacioni, P.; Zambonelli, Alessandra

doi:10.1007/s00572-013-0543-6

Cited by 26 publications

(13 citation statements)

References 41 publications

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“…Therefore, the changes in soil properties may affect the growth and mycorrhizal synthesis of T. indicum . The ectomycorrhizosphere soil in the present study was alkalescent, which is considered suitable for the cultivation of different varieties of truffles ( Garcia-Montero et al, 2008 ; Salerni et al, 2014 ). However, the ectomycorrhizosphere soil ( T. indicum mycorrhized with P. armandii ) was found slightly acidic in our previous study ( Li et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Chinese Black Truffle (Tuber indicum) Alters the Ectomycorrhizosphere and Endoectomycosphere Microbiome and Metabolic Profiles of the Host Tree Quercus aliena

Yan

et al. 2018

Front. Microbiol.

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Truffles are one group of the most famous ectomycorrhizal fungi in the world. There is little information on the ecological mechanisms of truffle ectomycorrhizal synthesis in vitro. In this study, we investigated the ecological effects of Tuber indicum – Quercus aliena ectomycorrhizal synthesis on microbial communities in the host plant roots and the surrounding soil using high-throughput sequencing and on the metabolic profiles of host plant roots using metabolomics approaches. We observed an increase in the diversity and richness of prokaryotic communities and a decrease in richness of fungal communities in the presence of T. indicum. The microbial community structures in the host roots and the surrounding soil were altered by ectomycorrhizal synthesis in the greenhouse. Bacterial genera Pedomicrobium, Variibacter, and Woodsholea and fungal genera Aspergillus, Phaeoacremonium, and Pochonia were significantly more abundant in ectomycorhizae and the ectomycorrhizosphere soil compared with the corresponding T. indicum-free controls (P < 0.05). Truffle-colonization reduced the abundance of some fungal genera surrounding the host tree, such as Acremonium, Aspergillus, and Penicillium. Putative prokaryotic metabolic functions and fungal functional groups (guilds) were also differentiated by ectomycorrhizal synthesis. The ectomycorrhizal synthesis had great impact on the measured soil physicochemical properties. Metabolic profiling analysis uncovered 55 named differentially abundant metabolites between the ectomycorhizae and the control roots, including 44 upregulated and 11 downregulated metabolites. Organic acids and carbohydrates were two major upregulated metabolites in ectomycorhizae, which were found formed dense interactions with other metabolites, suggesting their crucial roles in sustaining the metabolic functions in the truffle ectomycorrhization system. This study revealed the effects of truffle-colonization on the metabolites of ectomycorrhiza and illustrates an interactive network between truffles, the host plant, soil and associated microbial communities, shedding light on understanding the ecological effects of truffles.

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Section: Discussionmentioning

confidence: 99%

Chinese Black Truffle (Tuber indicum) Alters the Ectomycorrhizosphere and Endoectomycosphere Microbiome and Metabolic Profiles of the Host Tree Quercus aliena

Yan

et al. 2018

Front. Microbiol.

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“…It was found that T. magnatum mycelium is particularly abundant and widespread in spring and tends to concentrate in the productive areas during fruiting (autumn) (Iotti et al, 2014). Using this technique it was possible to assess the effects of cultural practices on T. magnatum and suggest methods for its future cultivation (Salerni et al, 2014). The same technique was also applied to detect and quantify T. melanosporum and T. aestivum mycelium in the soil (Gryndler et al, 2013b;Parladè et al, 2013).…”

Section: Ecological Studiesmentioning

confidence: 99%

Ecological and Genetic Advances in the Cultivation of Tuber Spp.

et al. 2017

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Recent advances on the ecology and genetics of true truffles (Tuber spp.) are reported and their impact on truffle cultivation is discussed. New insights have been gained on truffle soil ecology and interrelationships of truffles with associated microorganisms in the soil. For instance, some bacteria seem to play a key role in truffle fruiting body formation and maturation. However, the most important advance in truffle genetics over the past 20 years has been the sequencing of the Tuber melanosporum genome and the discovery that truffles, like other Pezizalean fungi, are heterothallic. This finding has had a significant impact on research on truffles and many studies have been devoted to better understanding the distribution of the mating types in soil in natural and cultivated truffières. The characterization of the mating type idiomorphs of several Tuber species has led to the possibility of selecting mycelial strains for truffle cultivation in particular sites.

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“…Salerni et al (2014) report the effects of shallow tilling in a natural white truffle site on the quantity of white truffle mycelium detected in soil by real-time PCR methods. Their observations indicate that tilling improves soil porosity and increases the quantity of white truffle mycelium, while decreasing the overall ECM fungal species diversity.…”

Section: Purpose and Content Of This Special Issuementioning

confidence: 99%

Tuber 2013: scientific advances in sustainable truffle culture

2014

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Since the 3rd International Truffle Conference in Spoleto (2008), researchers have made considerable progress in advancing understanding of the biology and ecology of Tuber species and in improving the sustainable productivity of these valuable fungi. Publication of the black truffle, Tuber melanosporum Vittad., genome (Martin et al. 2010) has opened new possibilities to explore gene functions and population dynamics of black truffles. New molecular technologies provide valuable tools to monitor black truffle development (Parladé et al. 2013) and allow researchers and managers to monitor the success of new truffle plantations and the effects of cultivation treatments on truffle productivity.Given the significant impact of truffle plantations on local economies, the regional government of Aragón, together with other institutes and truffle grower groups (see "Acknowledgments"), organized the 1st International Congress of Trufficulture in Teruel on March 5-8, 2013. The province of Teruel (Aragón region, Spain) produces almost 20 % of the global truffle market and hosts 11 % of the world's black truffle plantations. The main objective of the congress was to promote the sustainable productivity of truffles by highlighting and exchanging the latest scientific advances in truffle biology, ecology, and truffle plantation management among researchers, students, truffle hunters, truffle growers, forest managers, land-use planners, and rural entrepreneurs from around the world. The conference brought together 270 participants from 23 countries of Europe, North and South America, Australia, and New Zealand.More than 100 presentations, of which, 54 oral and the remaining posters, covered many aspects of truffle biology, genetics, taxonomy, ecology, cultivation, and commercialization. The congress also included market displays by regional truffle entrepreneurs and a local field trip to productive truffle plantations, seedling nurseries, and a truffle processing facility. Congress attendees thus experienced firsthand the many aspects of the region's practicing truffle culture. The trip culminated with a delightful banquet where all enjoyed the essence of truffle cuisine. Purpose and content of this special issueCongress organizers felt it was important to share the science findings with the international community and partnered with Springer to publish this special issue of Mycorrhiza. The published papers are not formal proceedings, but instead focus on presentations selected by the guest editors to highlight significant scientific findings that advance sustainable truffle culture. All abstracts and links to presentation videos are available at: www.tuber2013.com.The first two papers review important findings on the diversity of ectomycorrhizal (ECM) fungi associated with truffle fungi and the reproductive biology of T. melanosporum. Truffle researchers and managers have long known that colonization of outplanted, truffle-inoculated seedlings by unwanted, competing ECM fungi impedes colonization by the targeted truffle speci...

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Effects of soil tillage on Tuber magnatum development in natural truffières

Cited by 26 publications

References 41 publications

Chinese Black Truffle (Tuber indicum) Alters the Ectomycorrhizosphere and Endoectomycosphere Microbiome and Metabolic Profiles of the Host Tree Quercus aliena

Chinese Black Truffle (Tuber indicum) Alters the Ectomycorrhizosphere and Endoectomycosphere Microbiome and Metabolic Profiles of the Host Tree Quercus aliena

Ecological and Genetic Advances in the Cultivation of Tuber Spp.

Tuber 2013: scientific advances in sustainable truffle culture

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