Potential and limitations of Burgundy truffle cultivation

Stobbe, Ulrich; Egli, Simon; Tegel, Willy; Peter, Martina; Sproll, Ludger; Büntgen, Ulf

doi:10.1007/s00253-013-4956-0

Cited by 65 publications

(64 citation statements)

References 55 publications

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“…This species shows an ecological polymorphism with different maturity periods and ecological preferences depending on its geographical location (Chevalier et al 1979;Chevalier and Frochot 2002;Riousset et al 2001;Stobbe et al 2013). In 1887, Chatin split T. aestivum into two distinct species: T. aestivum and Tuber uncinatum on the basis of spore morphological characteristics (Chatin 1887).…”

Section: Introductionmentioning

confidence: 99%

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

et al. 2015

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Tuber species are ectomycorrhizal ascomycetes establishing relationships with different host trees and forming hypogeous fruiting bodies known as truffles. Among Tuber species, Tuber aestivum Vittad. has a wide distributional range being found naturally all over Europe. Here, we performed large-scale population genetic analyses in T. aestivum to (i) investigate its genetic diversity at the European scale, (ii) characterize its genetic structure and test for the presence of ecotypes and (iii) shed light into its demographic history. To reach these goals, 230 ascocarps from different populations were genotyped using 15 polymorphic simple sequence repeat markers. We identified 181 multilocus genotypes and four genetic groups which did not show a clear geographical separation; although, one of them was present exclusively in Southeast France, Italy and Spain. Fixation index values between pairs of genetic groups were generally high and ranged from 0.29 to 0.45. A significant deficit of heterozygosity indicated a population expansion instead of a recent population bottleneck, suggesting that T. aestivum is not endangered in Europe, not even in Mediterranean regions. Our study based on a large-scale population genetic analysis suggests that genetically distinct populations and likely ecotypes within T. aestivum are present. In turn, this study paves the way to future investigations aimed at addressing the biological and/or ecological factors that have concurred in shaping the population genetic structure of this species. Present results should also have implications for the truffle market since defining genetic markers are now possible at least for some specific T. aestivum genetic groups.

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Section: Introductionmentioning

confidence: 99%

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

et al. 2015

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“…However, Granetti and co-authors [3] claim that there is a lack of knowledge as to how the physical-chemical properties of soil shape natural truffle development. In addition, the microbiology, site ecology, and host specificity of T. aestivum is poorly understood [10,12]. Gryndler and co-authors [13] suggest that non-host (not known to form ectomycorrhiza with a given fungal symbiont) plants may also be important for truffle production since the association of T. aestivum mycelium with the non-host plants plays a functional role.…”

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confidence: 99%

Soil Properties Conducive to the Formation of Tuber aestivum Vitt. Fruiting Bodies

Hilszczańska¹,

Szmidla²,

Sikora³

et al. 2019

Pol. J. Environ. Stud.

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“…In addition to soils, climatic factors are also presumed significantly to influence the distribution of Tuber spp. Detailed information on optimal temperature and precipitation values for T. aestivum has been summarized by Stobbe et al (2013). According to the cited work, the ecological optimum of the species is at mean annual temperature of ca +9°C, mean winter temperature of ca +1°C, and annual precipitation of ca 755 mm.…”

Section: Effects Of Environmental Conditionsmentioning

confidence: 99%

Truffle biogeography—A case study revealing ecological niche separation of different Tuber species

Gryndler

Šmilauer

Šťovíček

et al. 2017

Ecology and Evolution

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Ecology of hypogeic mycorrhizal fungi, such as truffles, remains largely unknown, both in terms of their geographical distribution and their environmental niches. Occurrence of true truffles (Tuber spp.) was therefore screened using specific polymerase chain reaction (PCR) assays and subsequent PCR amplicon sequencing in tree roots collected at 322 field sites across the Czech Republic. These sites spanned a wide range of climatic and soil conditions. The sampling was a priori restricted to areas thought to be suitable for Tuber spp. inasmuch as they were characterized by weakly acidic to alkaline soils, warmer climate, and with tree species previously known to host true truffles. Eight operational taxonomic units (OTUs) corresponding to Tuber aestivum, T. borchii, T. foetidum, T. rufum, T. indicum, T. huidongense, T. dryophilum, and T. oligospermum were detected. Among these, T. borchii was the OTU encountered most frequently. It was detected at nearly 19% of the sites. Soil pH was the most important predictor of Tuber spp. distribution. Tuber borchii preferred weakly acidic soils, T. foetidum and T. rufum were most abundant in neutral soils, and T. huidongense was restricted to alkaline soils. Distribution of T. aestivum was mainly dictated by climate, with its range restricted to the warmest sites. Host preferences of the individual Tuber spp. were weak compared to soil and climatic predictors, with the notable exception that T. foetidum appeared to avoid oak trees. Our results open the way to better understanding truffle ecology and, through this new knowledge, also to better‐informed trufficulture.

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Potential and limitations of Burgundy truffle cultivation

Cited by 65 publications

References 55 publications

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

SSR-based identification of genetic groups within European populations of Tuber aestivum Vittad

Soil Properties Conducive to the Formation of Tuber aestivum Vitt. Fruiting Bodies

Truffle biogeography—A case study revealing ecological niche separation of different Tuber species

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