New evidence for the symbiosis between Tuber aestivum and Picea abies

Stobbe, Ulrich; Stobbe, Annika; Sproll, Ludger; Tegel, Willy; Peter, Martina; Büntgen, Ulf; Egli, Simon (2013). New evidence for the symbiosis between Tuber aestivum and Picea abies. Mycorrhiza, 23(8), pp. 669-673. Springer 10.1007/s00572-013-0508-9

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The Burgundy truffle (Tuber aestivum Vittad.), an ectomycorrhizal fungus living in association with host plants, is one of the most exclusive delicacies. The symbiosis with deciduous oak, beech, and hazel dominates our concept of truffle ecophysiology, whereas potential conifer hosts have rarely been reported. Here, we present morphological and molecular evidence of a wildlife T. aestivum symbiosis with Norway spruce (Picea abies Karst.) and an independent greenhouse inoculation experiment, to confirm our field observation in southwest Germany. A total of 27 out of 50 P. abies seedlings developed T. aestivum ectomycorrhizae with a mean mycorrhization rate of 19.6 %. These findings not only suggest P. abies to be a productive host species under suitable biogeographic conditions but also emphasize the broad ecological amplitude and great symbiotic range of T. aestivum. While challenging common knowledge, this study demonstrates a significant expansion of the species' cultivation potential to the central European regions, where P. abies forests occur on calcareous soils.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Institute of Geography > Physical Geography

UniBE Contributor:

Büntgen, Ulf

Subjects:

500 Science > 580 Plants (Botany)
900 History > 910 Geography & travel

ISSN:

0940-6360

Publisher:

Springer

Language:

English

Submitter:

Monika Wälti-Stampfli

Date Deposited:

04 Jul 2014 10:09

Last Modified:

19 Oct 2015 09:56

Publisher DOI:

10.1007/s00572-013-0508-9

Uncontrolled Keywords:

Ectomycorrhizal symbiosis, Greenhouse inoculation, Host specificity, Picea abies, Tuber aestivum, Truffle cultivation

BORIS DOI:

10.7892/boris.49624

URI:

https://boris.unibe.ch/id/eprint/49624

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