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Title:
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Shifts in soil fungal communities in Tuber melanosporum plantations over a 20-year transition from agriculture fields to oak woodlands
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Author:
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Liu, Bing; Fischer, Christine; Bonet Lledos, José Antonio; Castaño Soler, Carles; Colinas, C. (Carlos)
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Notes:
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Aim of study: To explore the diversity of soil fungi found in black truffle (Tuber melanosporum) plantations following the introduction
of the mycorrhizal-colonized host tree, (Quercus ilex), through the development of the brûlé and production of mature
sporocarps.
Area of study: This research was carried out in the province of Teruel, Aragon (central eastern Spain).
Material and Methods: Soil samples from 6 plantations were collected beneath Q. ilex trees inoculated with T. melanosporum,
of 3, 5, 7, 10, 14 and 20 years after out planting in truffle plantations. Soil DNA was extracted, PCR-amplified and sequenced to
compare soil fungi present at different ages.
Main results: As tree age increased, we observed an increased frequency of T. melanosporum (from 8% to 71% of sequenced
colonies) and concomitant decrease in the combined frequency of Fusarium spp. and Phoma spp. (from 64% to 3%).
Research highlights: There are important shifts in species richness and in functional groups in the soil fungal communities in
maturing black truffle-oak woodland plantations. The observed inverse relationship between the frequency of soil endophytic and/
or pathogenic fungi and that of the mycorrhizal mutualist T. melanosporum provides support to continue a deeper analysis of shifts
in fungal communities and functional groups where there is a transition from agriculture fields to woodlands.
Partial funding came from the Subdirección General de Proyectos de Investigación, Ministerio de Economía y Competitividad of Spain (research grant AGL2010-22354-C02-0), and the China Scholarship Council for scholarship support of B. Liu. |
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Subject(s):
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-Quercus ilex
-Ectomycorrhiza diversity
-Fungal succession |
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Rights:
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cc-by-nc (c) Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2016
http://creativecommons.org/licenses/by-nc/3.0/es/
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Document type:
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article
publishedVersion |
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Published by:
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Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
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