Desert Truffles (Terfezia spp.) Breeding

Morte, Asunción; Arenas, Francisco; Marqués‐Gálvez, José Eduardo; Andrino, Alberto; Gutiérrez, Almudena; Berná, Luis Miguel; Pérez‐Gilabert, Manuela; Rodrı́guez, Antonio; Navarro‐Ródenas, Alfonso

doi:10.1007/978-3-030-66969-0_13

Cited by 3 publications

(7 citation statements)

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“…The plants were established in rows separated 0.75 m and 1 m between rows. A suitable management of the cultivation and watering according to the recommendations described in [ 5 , 13 , 14 , 17 , 59 ] was followed.…”

Section: Methodsmentioning

confidence: 99%

“…Until now, some abiotic factors or agroclimatic parameters associated with plant management and the control of fungal fruiting have been studied [ 14 , 15 , 16 ]. Although this knowledge on mycorrhizal plant phenology could helped to stabilise annual fluctuations in yield ascocarps production [ 17 ], there are still high fluctuations within the same plantation, resulting in productive and non-productive areas or “patches” [ 18 ]. The analysis of ecology, phenology, and interannual fluctuations on mycelial development are also essential for the proper management of mycorrhizal plants producing truffles or mushrooms [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Design and Validation of qPCR-Specific Primers for Quantification of the Marketed Terfezia claveryi and Terfezia crassiverrucosa in Soil

Arenas

Morte

Navarro‐Ródenas

2022

JoF

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Desert truffle crop is a pioneer in southeastern Spain, a region where native edible hypogeous fungi are adapted to the semiarid areas with low annual rainfall. Terfezia claveryi Chatin was the first species of desert truffle to be cultivated, and has been increasing in recent years as an alternative rainfed crop in the Iberian Peninsula. However, its behaviour in the field has yet not been investigated. For this purpose, specific primers were designed for the soil DNA quantification of both T. claveryi and Terfezia crassiverrucosa and a real-time qPCR protocol was developed, using the ITS rDNA region as a target. Moreover, a young desert truffle orchard was sampled for environmental validation. The results showed the highest efficiency for the TerclaF3/TerclaR1 primers pair, 89%, and the minimal fungal biomass that could be reliable detected was set at 4.23 µg mycelium/g soil. The spatial distribution of fungal biomass was heterogeneous, and there was not a direct relationship between the quantity of winter soil mycelium and the location/productivity of desert truffles. This protocol could be applied to tracking these species in soil and understand their mycelial dynamics in plantations and wild areas.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Validation of qPCR-Specific Primers for Quantification of the Marketed Terfezia claveryi and Terfezia crassiverrucosa in Soil

Arenas

Morte

Navarro‐Ródenas

2022

JoF

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“…Due to strong cultural traditions [11], desert truffles have been part of the Mediterranean, North African and Middle Eastern cultures for centuries [12], and are widely consumed in these regions [12,13]. As most of the world's trade of desert truffles occurs in North African countries [14], and most of this regional trade is not official, there is a lack of official data in these countries [8]. Therefore, the world's production and annual market of desert truffles is still unknown [14].…”

Section: Introductionmentioning

confidence: 99%

“…As most of the world's trade of desert truffles occurs in North African countries [14], and most of this regional trade is not official, there is a lack of official data in these countries [8]. Therefore, the world's production and annual market of desert truffles is still unknown [14]. Nevertheless, desert truffle plantation yields can reach approximately 350 kg ha −1 , representing an expected average income of 7000 EUR ha −1 [14].…”

Section: Introductionmentioning

confidence: 99%

Using Science and Technology to Unveil The Hidden Delicacy Terfezia arenaria, a Desert Truffle

Ferreira,

Dias,

Mouazen

et al. 2023

Foods

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Terfezia arenaria is a desert truffle native to the Mediterranean Basin region, highly appreciated for its nutritional and aromatic properties. Despite the increasing interest in this desert truffle, T. arenaria is not listed as an edible truffle authorized for trade in the European Union. Therefore, our objective was to showcase T. arenaria’s nutritional and chemical composition and volatile profile. The nutritional analysis showed that T. arenaria is a good source of carbohydrates (67%), proteins (14%), and dietary fibre (10%), resulting in a Nutri-Score A. The truffle’s volatile profile was dominated by eight-carbon volatile compounds, with 1-octen-3-ol being the most abundant (64%), and 29 compounds were reported for the first time for T. arenaria. T. arenaria’s nutritional and chemical compositions were similar to those of four commercial mushroom and truffle species, while the aromatic profile was not. An electronic nose corroborated that T. arenaria‘s aromatic profile differs from that of the other four tested mushroom and truffle species. Our data showed that T. arenaria is a valuable food resource with a unique aroma and an analogous composition to meat, which makes it an ideal source for plant-based meat products. Our findings could help promote a sustainable future exploitation of T. arenaria and ensure the quality and authenticity of this delicacy.

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“…При этом проблема заключается в том, что успешно установленная симбиотическая связь с трюфелевыми грибами может быть непостоянной и неустойчивой в связи с заражением растений-хозяев патогенами и другими грибами-симбионтами [15]. Кроме того, не все растения-хозяева могут быть успешно микоризированы трюфелями, что ограничивает выбор видов и сортов для получения трюфелей [16]. При отсутствии молекулярного контроля микоризация растения может произойти фитопатогенными грибами -симбионтами трюфеля, а не собственно трюфелевыми грибами.…”

Section: Introductionunclassified

A way to mechanically activate a suspension of black truffle spores

Imidoeva,

Malygina,

Belyshenko

et al. 2023

Izvestiâ vuzov. Prikladnaâ himiâ i biotehnologiâ

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True truffles, or fungi of the genus Tuber, are among the most valuable, rare, expensive, and mysterious fungi on the planet. The reproduction of truffle fungi in the wild is a complex process that depends on many factors, for example, the presence of suitable host trees, as well as the optimal parameters of temperature, moisture, soil pH, soil symbionts, and other organisms. Successful production and reproduction of truffles require a large number of conditions to be met, primarily the release of their spores from ascii, germination under favorable conditions, and distribution in the environment. The present study aims to develop a method for mechanically breaking ascii in order to release the spores of black truffle. It is shown that homogenization by means of an immersion blender together with a vibrating chopper is a highly effective way to break ascii. The microscopic examination of the specimens at all stages of the experiment revealed that this method leads to the breakdown of at least 85% of ascii and the release of truffle spores. The use of centrifugation approaches enables the separation of black truffle spores from hyphal debris, fungal symbionts, and various associated organisms. Such spores can form mycelium on growth media. The study results can be used to prepare Tuber sp. inoculum and obtain their axenic cultures. Thus, the introduction of methods for releasing spores from ascii improves the efficiency of black truffle cultivation.

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Desert Truffles (Terfezia spp.) Breeding

Cited by 3 publications

References 49 publications

Design and Validation of qPCR-Specific Primers for Quantification of the Marketed Terfezia claveryi and Terfezia crassiverrucosa in Soil

Design and Validation of qPCR-Specific Primers for Quantification of the Marketed Terfezia claveryi and Terfezia crassiverrucosa in Soil

Using Science and Technology to Unveil The Hidden Delicacy Terfezia arenaria, a Desert Truffle

A way to mechanically activate a suspension of black truffle spores

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