scholarly journals Ectomycorrhizal communities in a Tuber aestivum Vittad. orchard in Poland

2016 ◽  
Vol 11 (1) ◽  
pp. 348-357 ◽  
Author(s):  
Dorota Hilszczańska ◽  
Hanna Szmidla ◽  
Jakub Horak ◽  
Aleksandra Rosa-Gruszecka
Keyword(s):  
Rural Communities ◽  
Host Species ◽  
Fruiting Bodies ◽  
Tuber Aestivum ◽  
Conventional Agriculture ◽  
Truffle Cultivation ◽  
Host Trees ◽  
Rural Economies ◽  
Burgundy Truffle ◽  
Ectomycorrhizal Communities

AbstractCultivation of the Burgundy truffle, Tuber aestivum Vittad., has become a new agricultural alternative in Poland. For rural economies, the concept of landscaping is often considerably more beneficial than conventional agriculture and promotes reforestation, as well as land-use stability. Considering examples from France, Italy, Hungary and Spain, truffle cultivation stimulates economic and social development of small, rural communities. Because there is no long tradition of truffle orchards in Poland, knowledge regarding the environmental factors regulating the formation of fruiting bodies of T. aestivum is limited. Thus, knowledge concerning ectomycorrhizal communities of T. aestivum host species is crucial to ensuring successful Burgundy truffle production. We investigated the persistence of T. aestivum ectomycorrhizae on roots of hazel (Corylus avellana L.) and oak (Quercus robur L.) and checked the host-species influence on community structure of ectomycorrhizal fungi. The study was conducted in an experimental plantation located in eastern Poland and established in 2008. We demonstrated that the number of fungal taxa was not significantly different between oak and hazel. However, the species composition differed between these two host trees. During the three-year study, we observed that species richness did not increase with the age of the plantation.

scholarly journals Virtual Truffle Hunting—A New Method of Burgundy Truffle (Tuber aestivum Vittad.) Site Typing

Forests ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1239
Author(s):  
Aleksandra Rosa-Gruszecka ◽  
Dorota Hilszczańska ◽  
Giovanni Pacioni
Keyword(s):  
Soil Structure ◽  
Forest Site ◽  
Forest Research ◽  
Tuber Aestivum ◽  
Hypogeous Fungi ◽  
Soil C ◽  
Digital Maps ◽  
Host Trees ◽  
Caco3 Content ◽  
Burgundy Truffle

The aim of this study was to enable searches for truffles (Tuber spp.), particularly the Burgundy truffle (T. aestivum Vittad.), to be carried out in forests based on a method that has been constantly developed since 2007 by the Forest Research Institute. The method is termed “Virtual Truffle Hunting” and it takes 12 parameters into account: bedrock, soil pH, Ca+ and CaCO3 content in soil, C/N ratio, soil structure, altitude of terrain, type of forest site, forest structure, the Burgundy truffle host trees, and the presence of particular species including orchids and insects. A simple “Virtual Truffle Hunting” software has also been developed, which makes the use of the method easy, fast, and effective. This method is to ascertain the truffle potential for all areas in which digital maps are not available. In 2015, the method was tested in 20 sites, representing forests in 5 Polish macroregions. Hunting for hypogeous fungi was conducted from June to October with the help of trained dogs. Thanks to this method, 14 new truffle sites were found. The knowledge of environmental conditions conducive to the Burgundy truffle growth enabled us to form an effective tool in order to identify new sites of truffle presence.

scholarly journals Europe, a continent with high potential for the cultivation of the Burgundy truffle (Tuber aestivum/uncinatum)

2013 ◽  
Vol 47 (2) ◽  
pp. 127-132 ◽  
Author(s):  
Gérard Chevalier
Keyword(s):  
Great Depth ◽  
Parent Rock ◽  
Limiting Factors ◽  
Northern Europe ◽  
Tuber Aestivum ◽  
Truffle Cultivation ◽  
Baltic Countries ◽  
Parent Rocks ◽  
Burgundy Truffle ◽  
Physical And Chemical

The Burgundy truffle (<em>Tuber aestivum/uncinatum</em>) grows, in Europe, in the most varied soils from a physical and chemical viewpoint. The only common point is the presence of a minimum level of exchangeable calcium in the soil. The truffle soils in Europe can be classified in two categories: the soils coming directly from the parent rock, and those formed from deposits covering the parent rock. The first group corresponds to most traditional truffle areas , France, Italy and Spain. It is also true for some soils from Ireland to Eastern Europe (Romania, Bulgaria), from Southern Europe (Greece, former Yugoslavia) to Northern Europe (Sweden, Baltic countries). The sedimentary layers that cover most areas are from the secondary and tertiary era. The primary parent rocks are less frequent. The second group means quaternary or recent alluviums covering the parent rock on huge surfaces and at great depth sometimes. They characterize mainly countries Eastern and Northern Europe. By bringing within reason limestone, it is possible to cultivate <em>T. aestivum/uncinatum</em> on sedimentary soils non-calcareous or decalcified or even on soils issued from magmatic rocks (granite) or metamorphic (schists). The possibilities of truffle cultivation in Europe are therefore enormous, the limiting factors not being the soil but the climate.

scholarly journals Identification of bacteria and fungi inhabiting fruiting bodies of Burgundy truffle (Tuber aestivum Vittad.)

2020 ◽  
Vol 202 (10) ◽  
pp. 2727-2738 ◽  
Author(s):  
Urszula Perlińska-Lenart ◽  
Sebastian Piłsyk ◽  
Elżbieta Gryz ◽  
Jadwiga Turło ◽  
Dorota Hilszczańska ◽  
...  
Keyword(s):  
Fungal Species ◽  
Fruiting Bodies ◽  
Tuber Aestivum ◽  
Its1 Region ◽  
Cultivable Bacteria ◽  
The Family ◽  
Burgundy Truffle ◽  
Identification Of Bacteria ◽  
Bacteria And Fungi ◽  
Different Strains

Abstract Tuber species may be regarded as complex microhabitats hosting diverse microorganisms inside their fruiting bodies. Here, we investigated the structure of microbial communities inhabiting the gleba of wild growing (in stands) T. aestivum, using Illumina sequencing and culture-based methods. The two methods used in combination allowed to extract more information on complex microbiota of Tuber aestivum gleba. Analysis of the V3–V4 region of 16S rDNA identified nine phyla of bacteria present in the gleba of T. aestivum ascomata, mostly Proteobacteria from the family Bradyrhizobiaceae. Our results ideally match the earlier data for other Tuber species where the family Bradyrhizobiaceae was the most represented. The ITS1 region of fungal rDNA represented six alien fungal species belonging to three phyla. To complement the metagenomic analysis, cultivable fungi and bacteria were obtained from the gleba of the same T. aestivum fruiting bodies. The identified fungi mostly belong to the phylum Basidiomycota and same to Ascomycota. Analysis of cultivable bacteria revealed that all the specimens were colonized by different strains of Bacillus. Fungal community inhabiting T. aestivum fruiting bodies was never shown before.

scholarly journals Ectomycorrhiza resilience and recovery to extreme flood events in Tuber aestivum and Quercus robur

Mycorrhiza ◽  
2021 ◽  
Author(s):  
P. W. Thomas
Keyword(s):  
Climate Change ◽  
Seedling Growth ◽  
Quercus Robur ◽  
Root Systems ◽  
Fruiting Bodies ◽  
Flood Events ◽  
Tuber Aestivum ◽  
Soil Zone ◽  
Extreme Flood ◽  
The Impact

AbstractVery little is known about the impact of flooding and ground saturation on ectomycorrhizal fungi (EcM) and increasing flood events are expected with predicted climate change. To explore this, seedlings inoculated with the EcM species Tuber aestivum were exposed to a range of flood durations. Oak seedlings inoculated with T. aestivum were submerged for between 7 and 65 days. After a minimum of 114-day recovery, seedling growth measurements were recorded, and root systems were destructively sampled to measure the number of existing mycorrhizae in different zones. Number of mycorrhizae did not display correlation with seedling growth measurements. Seven days of submersion resulted in a significant reduction in mycorrhizae numbers and numbers reduced most drastically in the upper zones. Increases in duration of submersion further impacted mycorrhizae numbers in the lowest soil zone only. T. aestivum mycorrhizae can survive flood durations of at least 65 days. After flooding, mycorrhizae occur in higher numbers in the lowest soil zone, suggesting a mix of resilience and recovery. The results will aid in furthering our understanding of EcM but also may aid in conservation initiatives as well as providing insight for those whose livelihoods revolve around the collection of EcM fruiting bodies or cropping of the plant partners.

Light or presence of host trees: which is more important for the strangler fig?

1999 ◽  
Vol 15 (5) ◽  
pp. 589-602 ◽  
Author(s):  
Vidya R. Athreya
Keyword(s):  
Host Species ◽  
National Park ◽  
Canopy Cover ◽  
Light Level ◽  
Southern India ◽  
Evergreen Forest ◽  
Primary Forest ◽  
Light Levels ◽  
Host Trees ◽  
Main Host

Strangler fig density varied considerably in the evergreen forest of Karian Shola National Park, southern India, with 11 individuals ha−1 in an open trail area and 5.6 individuals ha−1 within the primary forest area. The index of light level was assessed by estimating the percentage of upper canopy cover along the longitudinal centre of ten, 500-m × 20-m plots in each of the two areas of the evergreen forest. However, the increase in strangler fig density was not correlated to light levels but was significantly correlated to the numbers of their main host species in the two areas. In Karian Shola National Park, strangler figs occurred predominantly on a few host species with 20 and 50% of strangler figs growing on Vitex altissima, Diospyros bourdilloni and Eugenia/Syzygium spp. in the primary forest and trail areas respectively. Both young and established strangler figs were recorded mainly on larger individuals of their host trees indicating that older host trees are likely to be more suitable for the germination and establishment of strangler figs. The reason for the above could be the higher incidence of humus-filled and decaying regions in the older host trees which would provide an assured supply of nutrients for the establishing strangler fig.

A new species of Bioblapsis (Hymenoptera: Ichneumonidae) from Scotland parasitising a mycophagous hoverfly, Cheilosia longula (Diptera: Syrphidae)

1990 ◽  
Vol 21 (3) ◽  
pp. 277-280 ◽  
Author(s):  
Graham E. Rotheray
Keyword(s):  
New Species ◽  
Host Species ◽  
Deciduous Trees ◽  
Fruiting Bodies ◽  
Ground Flora ◽  
A New Species

AbstractBioblapsís mallochi sp. n., from Scotland is described and a key is given to adult Bioblapsis. The host of B. mallochi is the syrphid Cheilosía longula, which breeds in fruiting bodies of Boletus fungi growing in the ground flora of pinewoods. The host of Bioblapsis polita (Vollenhoven) appears to be species of the hoverfly genus Ferdinandea which are associated with sap-flows on deciduous trees. These are unusual host species for diplazontines which are more typically associated with predacious hoverflies.

scholarly journals Community capacity for creativity based rural development in a developing country. Case studies from Indonesia.

2019 ◽  
Author(s):  
Tubagus Furqon Sofhani ◽  
◽  
Fikri Zul Fahmi ◽  
Dika Fajri Fiisabiillah ◽  
Brigitta Sadnya Wulandari ◽  
...  
Keyword(s):  
Rural Communities ◽  
Rural Community ◽  
Sense Of Belonging ◽  
Social Values ◽  
Community Capacity ◽  
Creative Economy ◽  
Key Factors ◽  
Local Resources ◽  
Rural Economies ◽  
Actor Networks

This paper aims to investigate the extent to which a rural community develops a capacity to support the establishment of a local creative economy despite various limitations. This study employs qualitative research methods in examining two villages in Indonesia, namely Kasongan and Krebet. Our findings show that the community capacity and actor networks potentially spark the development of rural economies. Local communities in both cases have utilized cultures and traditions as creative capitals, which were commercialized through communal entrepreneurship and mobilized by an organized network of creative actors. Social values, namely a strong sense of belonging, high shared values and strong emotional connections, are found to be the key factors that foster creative potentials, entrepreneurial capacity, and capacity for mobilization of local resources within the rural communities

Composition patterns and network structure of epiphyte–host interactions in Chilean and New Zealand temperate forests

2021 ◽  
Author(s):  
A Taylor ◽  
A Saldaña ◽  
G Zotz ◽  
C Kirby ◽  
I Díaz ◽  
...  
Keyword(s):  
New Zealand ◽  
Host Species ◽  
Species Interactions ◽  
Temperate Forests ◽  
Null Model ◽  
Host Interactions ◽  
Host Trees ◽  
Specific Host ◽  
Random Patterns ◽  
Epiphyte Species

Ecological networks are becoming increasingly used as a framework to study epiphyte–host interactions. However, efforts to quantify the properties of epiphyte–host networks have produced inconsistent results. Epiphyte–host interactions in New Zealand and Chilean temperate forests were quantified to test for non-random patterns in nestedness, negative co-occurrences, number of links, and network specialisation. Results showed that three out of five New Zealand networks were significantly more nested than null model expectations, compared with just one out of four Chilean networks. Epiphytes co-occurred more often than null model expectations in one New Zealand network and one in Chile. In all cases, the number of links maintained by each epiphyte and host species was consistent with null model expectations. Lastly, two New Zealand networks and one in southern Chile were significantly less specialised than null model expectations, with all remaining networks returning low specialisation scores. As such, aside from the tendency for greater nestedness in New Zealand networks, most epiphyte species were distributed on their host trees at random. We attribute the result of nestedness in New Zealand to the abundance of large nest epiphytes (Astelia spp. in particular), which may facilitate the sequential colonisation of epiphyte species on developing host trees. The lack of negative co-occurrences suggests that negative species interactions are not an important determinant of species assemblage structure. Low network specialisation scores suggest that epiphytes are selecting for specific host traits, rather than specific host species for colonisation.

scholarly journals Soil temperature and hydric potential influences the monthly variations of soil Tuber aestivum DNA in a highly productive orchard

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Flora Todesco ◽  
Simone Belmondo ◽  
Yoann Guignet ◽  
Liam Laurent ◽  
Sandrine Fizzala ◽  
...  
Keyword(s):  
Life Cycle ◽  
Soil Temperature ◽  
Water Availability ◽  
Genomic Data ◽  
Soil Parameters ◽  
Tuber Aestivum ◽  
Soil Dna ◽  
Burgundy Truffle ◽  
Monthly Variations ◽  
Trees And Shrubs

Abstract Tuber aestivum, also known as the summer or Burgundy truffle, is an ectomycorrhizal Ascomycete associated with numerous trees and shrubs. Its life cycle occurs in the soil, and thus soil parameters such as temperature and water availability could influence it. T. aestivum cultivation has started in several countries, but ecological and agronomic requirements for the establishment and management of orchards are largely unknown. The aims of this work were: 1) to design a specific qPCR protocol using genomic data to trace and quantify T. aestivum DNA in the soil; and 2) to assess the monthly soil DNA dynamic according to soil parameters (i.e. soil hydric potential and temperature) in this orchard. The study was conducted in a highly productive T. aestivum orchard (hazels, oaks, pines, lime and hornbeam). The production started five years after the plantation and then increased exponentially to reach a maximum of 320 kg/ha in 2017. The soil hydric potential and temperature partially explained the monthly T. aestivum soil DNA variability. The data presented here offer new insights into T. aestivum ecology and cultivation.

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