New insights into the complex relationship between weight and maturity of Burgundy truffles (Tuber aestivum)

Despite an increasing demand for Burgundy truffles (Tuber aestivum), gaps remain in our understanding of the fungus’ overall lifecycle and ecology. Here, we compile evidence from three independent surveys in Hungary and 
Despite an increasing demand for Burgundy truffles (Tuber aestivum), gaps remain in our understanding of the fungus’ overall lifecycle and ecology. Here, we compile evidence from three independent surveys in Hungary and Switzerland. First, we measured the weight and maturity of 2,656 T. aestivum fruit bodies from a three-day harvest in August 2014 in a highly productive orchard in Hungary. All specimens ranging between 2 and 755 g were almost evenly distributed through five maturation classes. Then, we measured the weight and maturity of another 4,795 T. aestivum fruit bodies harvested on four occasions between June and October 2015 in the same truffière. Again, different maturation stages occurred at varying fruit body size and during the entire fruiting season. Finally, the predominantly unrelated weight and maturity of 81 T. aestivum fruit bodies from four fruiting seasons between 2010 and 2013 in Switzerland confirmed the Hungarian results. The spatiotemporal coexistence of 7,532 small-ripe and large-unripe T. aestivum, which accumulate to ~182 kg, differs from species-specific associations between the size and ripeness that have been reported for other mushrooms. Although size-independent truffle maturation stages may possibly relate to the perpetual belowground environment, the role of mycelial connectivity, soil property, microclimatology, as well as other abiotic factors and a combination thereof, is still unclear. Despite its massive sample size and proof of concept, this study, together with existing literature, suggests consideration of a wider ecological and biogeographical range, as well as the complex symbiotic fungus-host interaction, to further illuminate the hidden development of belowground truffle fruit bodies.
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Metadaten
Author:Ulf Büntgen, István Bagi, Oszkár Fekete, Virginie Molinier, Martina Peter, Richard Splivallo, Maryam Vahdatzadeh, Franck Richard, Claude Murat, Willy Tegel, Ulrich Stobbe, Fernando Martínez-Peña, Ludger Sproll, Lisa Hülsmann, Daniel Nievergelt, Barbara Meier, Simon Egli
URN:urn:nbn:de:hebis:30:3-419905
URL:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5268403
DOI:http://dx.doi.org/10.1371/journal.pone.0170375
ISSN:1932-6203
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=28125633
Parent Title (English):PLoS one
Publisher:PLoS
Place of publication:Lawrence, Kan.
Contributor(s):Emidio Albertin
Document Type:Article
Language:English
Date of Publication (online):2017/02/23
Date of first Publication:2017/01/26
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2017/02/23
Volume:12
Issue:(1): e0170375
Pagenumber:15
First Page:1
Last Page:15
Note:
Copyright: © 2017 Büntgen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
HeBIS PPN:448152258
Institutes:Biowissenschaften
LOEWE-Schwerpunkt für Integrative Pilzforschung
Dewey Decimal Classification:570 Biowissenschaften; Biologie
Sammlungen:Universitätspublikationen
Sondersammelgebiets-Volltexte
Licence (German):License LogoCreative Commons - Namensnennung 4.0

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