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Matías J, Rodríguez MJ, Carrillo-Vico A, Casals J, Fondevilla S, Haros CM, Pedroche J, Aparicio N, Fernández-García N, Aguiló-Aguayo I, Soler-Rivas C, Caballero PA, Morte A, Rico D, Reguera M. From 'Farm to Fork': Exploring the Potential of Nutrient-Rich and Stress-Resilient Emergent Crops for Sustainable and Healthy Food in the Mediterranean Region in the Face of Climate Change Challenges. PLANTS (BASEL, SWITZERLAND) 2024; 13:1914. [PMID: 39065441 PMCID: PMC11281201 DOI: 10.3390/plants13141914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 04/08/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024]
Abstract
In the dynamic landscape of agriculture and food science, incorporating emergent crops appears as a pioneering solution for diversifying agriculture, unlocking possibilities for sustainable cultivation and nutritional bolstering food security, and creating economic prospects amid evolving environmental and market conditions with positive impacts on human health. This review explores the potential of utilizing emergent crops in Mediterranean environments under current climate scenarios, emphasizing the manifold benefits of agricultural and food system diversification and assessing the impact of environmental factors on their quality and consumer health. Through a deep exploration of the resilience, nutritional value, and health impacts of neglected and underutilized species (NUS) such as quinoa, amaranth, chia, moringa, buckwheat, millet, teff, hemp, or desert truffles, their capacity to thrive in the changing Mediterranean climate is highlighted, offering novel opportunities for agriculture and functional food development. By analysing how promoting agricultural diversification can enhance food system adaptability to evolving environmental conditions, fostering sustainability and resilience, we discuss recent findings that underscore the main benefits and limitations of these crops from agricultural, food science, and health perspectives, all crucial for responsible and sustainable adoption. Thus, by using a sustainable and holistic approach, this revision analyses how the integration of NUS crops into Mediterranean agrifood systems can enhance agriculture resilience and food quality addressing environmental, nutritional, biomedical, economic, and cultural dimensions, thereby mitigating the risks associated with monoculture practices and bolstering local economies and livelihoods under new climate scenarios.
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Affiliation(s)
- Javier Matías
- Agrarian Research Institute “La Orden-Valdesequera” of Extremadura (CICYTEX), 06187 Guadajira (Badajoz), Spain;
| | - María José Rodríguez
- Technological Institute of Food and Agriculture of Extremadura (INTAEX-CICYTEX), Avda. Adolfo Suárez s/n, 06007 Badajoz, Spain;
| | - Antonio Carrillo-Vico
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, 41013 Seville, Spain;
- Departamento de Bioquímica Médica y Biología Molecular e Inmunología, Facultad de Medicina, Universidad de Sevilla, 41009 Seville, Spain
| | - Joan Casals
- Fundació Miquel Agustí/HorPTA, Department of Agri-Food Engineering and Biotechnology, Universitat Politècnica de Catalunya (UPC)-BarcelonaTech, 08860 Castelldefels, Spain;
| | - Sara Fondevilla
- Institute for Sustainable Agriculture, Consejo Superior de Investigaciones Científicas, Avda. Menéndez Pidal s/n, 14004 Córdoba, Spain;
| | - Claudia Mónika Haros
- Cereal Group, Institute of Agrochemistry and Food Technology (IATA-CSIC), Av. Agustín Escardino 7, Parque Científico, 46980 Valencia, Spain;
| | - Justo Pedroche
- Group of Plant Proteins, Instituto de la Grasa, CSIC. Ctra. de Utrera Km. 1, 41013 Seville, Spain;
| | - Nieves Aparicio
- Agro-Technological Institute of Castilla y León (ITACyL), Ctra. Burgos Km. 119, 47071 Valladolid, Spain;
| | - Nieves Fernández-García
- Department of Abiotic Stress and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura (CSIC), Campus Universitario de Espinardo, 30100 Murcia, Spain;
| | - Ingrid Aguiló-Aguayo
- Postharvest Programme, Institute of Agrifood Research and Technology (IRTA), Parc Agrobiotech Lleida, Parc de Gardeny, Edifici Fruitcentre, 25003 Lleida, Spain;
| | - Cristina Soler-Rivas
- Departamento de Producción y Caracterización de Nuevos Alimentos, Institute of Food Science Research-CIAL (UAM+CSIC), Campus de Cantoblanco, Universidad Autónoma de Madrid, C/Nicolas Cabrera 9, 28049 Madrid, Spain;
- Sección Departamental de Ciencias de la Alimentación, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Pedro A. Caballero
- Food Technology, Department of Agriculture and Forestry Engineering, Universidad de Valladolid, 34004 Palencia, Spain;
| | - Asunción Morte
- Departamento Biología Vegetal, Facultad de Biología, Campus Universitario de Espinardo, Universidad de Murcia, 30100 Murcia, Spain;
| | - Daniel Rico
- Department of Medicine, Dermatology and Toxicology, Universidad de Valladolid, Av. Ramón y Cajal, 7, 47005 Valladolid, Spain;
| | - María Reguera
- Departamento de Biología, Campus de Cantoblanco, Universidad Autónoma de Madrid, C/Darwin 2, 28049 Madrid, Spain
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Álvarez-Lafuente A, Benito-Matías LF, Uscola M, Suz LM. Tuber melanosporum drives the symbiosis with Castanea sativa seedlings under greenhouse conditions and high calcium levels. Symbiosis 2023. [DOI: 10.1007/s13199-023-00896-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Fortier D, Séguin JC, Voyer N. Characterization of the Volatilome of Tuber canaliculatum Harvested in Quebec, Canada. ACS OMEGA 2022; 7:29038-29045. [PMID: 36033704 PMCID: PMC9404485 DOI: 10.1021/acsomega.2c02877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
The first detailed characterization of volatile compounds from Tuber canaliculatum, a truffle newly grown in Quebec, Canada, was performed with headspace solid phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC/MS). A total of 30 compounds were identified, making up more than 98% of the volatile extract. The volatilome of T. canaliculatum is dominated by (E)-1-methylthio-1-propene, (Z)-1-methylthio-1-propene, dimethyl disulfide, and 1-octen-3-ol. It also includes six compounds identified for the first time in truffles, namely, 4-hydroxy-4-methyl-2-pentanone, pentyl propanoate, (Z)-1-methyl-2-(prop-1-en-1-yl)disulfide, (E)-1-methyl-2-(prop-1-en-1-yl)disulfide, (Z)-1-methyl-3-(prop-1-en-1-yl)trisulfide, and (E)-1-methyl-3-(prop-1-en-1-yl)trisulfide. With the growing interest in gastronomy in truffles in North America, it is becoming important to gather knowledge for identification purposes and to delineate the key volatile compounds responsible for the aroma of North American truffles, especially the newly harvested T. canaliculatum.
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Virtual Truffle Hunting—A New Method of Burgundy Truffle (Tuber aestivum Vittad.) Site Typing. FORESTS 2021. [DOI: 10.3390/f12091239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
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.
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Nahberger TU, Benucci GMN, Kraigher H, Grebenc T. Effect of earthworms on mycorrhization, root morphology and biomass of silver fir seedlings inoculated with black summer truffle (Tuber aestivum Vittad.). Sci Rep 2021; 11:6167. [PMID: 33731841 PMCID: PMC7971050 DOI: 10.1038/s41598-021-85497-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 03/02/2021] [Indexed: 11/25/2022] Open
Abstract
Species of the genus Tuber have gained a lot of attention in recent decades due to their aromatic hypogenous fruitbodies, which can bring high prices on the market. The tendency in truffle production is to infect oak, hazel, beech, etc. in greenhouse conditions. We aimed to show whether silver fir (Abies alba Mill.) can be an appropriate host partner for commercial mycorrhization with truffles, and how earthworms in the inoculation substrate would affect the mycorrhization dynamics. Silver fir seedlings inoculated with Tuber. aestivum were analyzed for root system parameters and mycorrhization, how earthworms affect the bare root system, and if mycorrhization parameters change when earthworms are added to the inoculation substrate. Seedlings were analyzed 6 and 12 months after spore inoculation. Mycorrhization with or without earthworms revealed contrasting effects on fine root biomass and morphology of silver fir seedlings. Only a few of the assessed fine root parameters showed statistically significant response, namely higher fine root biomass and fine root tip density in inoculated seedlings without earthworms 6 months after inoculation, lower fine root tip density when earthworms were added, the specific root tip density increased in inoculated seedlings without earthworms 12 months after inoculation, and general negative effect of earthworm on branching density. Silver fir was confirmed as a suitable host partner for commercial mycorrhization with truffles, with 6% and 35% mycorrhization 6 months after inoculation and between 36% and 55% mycorrhization 12 months after inoculation. The effect of earthworms on mycorrhization of silver fir with Tuber aestivum was positive only after 6 months of mycorrhization, while this effect disappeared and turned insignificantly negative after 12 months due to the secondary effect of grazing on ectomycorrhizal root tips.
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Affiliation(s)
| | - Gian Maria Niccolò Benucci
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, 426 Auditorium Road, East Lansing, MI, 48824, USA
| | - Hojka Kraigher
- Slovenian Forestry Institute, Večna pot 2, 1000, Ljubljana, Slovenia
| | - Tine Grebenc
- Slovenian Forestry Institute, Večna pot 2, 1000, Ljubljana, Slovenia.
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Truffles: Biodiversity, Ecological Significances, and Biotechnological Applications. Fungal Biol 2021. [DOI: 10.1007/978-3-030-67561-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Liu D, Herrera M, Yu F, Pèrez-Moreno J. Provenances originate morphological and microbiome variation of Tuber pseudobrumale in southwestern China despite strong genetic consistency. Mycol Prog 2020. [DOI: 10.1007/s11557-020-01645-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Huang LL, Guerin-Laguette A, Wang R, Yu FQ. Characterization of Tuber indicum (Pezizales, Tuberaceae) mycorrhizae synthesized with four host trees exotic to China. Symbiosis 2020. [DOI: 10.1007/s13199-020-00715-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Chen J, Li JM, Tang YJ, Xing YM, Qiao P, Li Y, Liu PG, Guo SX. Chinese Black Truffle-Associated Bacterial Communities of Tuber indicum From Different Geographical Regions With Nitrogen Fixing Bioactivity. Front Microbiol 2019; 10:2515. [PMID: 31749786 PMCID: PMC6848067 DOI: 10.3389/fmicb.2019.02515] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 10/18/2019] [Indexed: 11/13/2022] Open
Abstract
It is well known that the microbes associated with truffle fruiting bodies play a very important role during the truffle lifecycle. Tuber indicum, commonly called Chinese black truffle, is a species endemic to Eastern Asia and in the genus of Tuber. Here, we reported the bacterial communities of T. indicum from different geographical regions and described the bacterial diversity from three compartments (soil, ectomycorrhizae and ascocarps) of T. indicum using high-throughput sequencing combined tissue culture. The results revealed that Bradyrhizobium was the dominant genus in fruiting bodies of T. indicum from nine geographical sites in China, and the microbes in T. indicum ascocarps were influenced by geological locations and soil characteristics. More specific bacterial taxa were enriched in the fruiting bodies than in the ectomycorrhizae and soil. In addition, 60 cultural bacteria were isolated from T. indicum fruiting bodies (4 families, 24 genera), and Pseudomonas, Alcaligenes faecalis, Microbacterium, and Arthrobacter were dominant. One of 13 strains that have potential nitrogen-fixation activities was further verified by an acetylene reduction assay (ARA). Together, this research provides new and important data for better understanding of the interaction between truffle and associated microbe and the biology of truffle itself.
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Affiliation(s)
- Juan Chen
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Jia-Mei Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yan-Jing Tang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yong-Mei Xing
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Peng Qiao
- Shandong Institute of Sericulture, Shandong Academy of Agricultural Sciences, Yantai, China
| | - Yang Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Pei-Gui Liu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Shun-Xing Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Wang R, Guerin-Laguette A, Butler R, Huang LL, Yu FQ. The European delicacy Tuber melanosporum forms mycorrhizae with some indigenous Chinese Quercus species and promotes growth of the oak seedlings. MYCORRHIZA 2019; 29:649-661. [PMID: 31760479 DOI: 10.1007/s00572-019-00925-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
We aimed to test whether Tuber melanosporum and native Chinese oak species could form stable mycorrhizal symbioses. Six oak species were all either inoculated or not, with spores of the Périgord black truffle in the greenhouse. Ectomycorrhizal development was monitored for up to 32 months. Seedling growth was assessed 2 years after inoculation. From 6 months after inoculation, Tuber melanosporum ectomycorrhizae were successfully produced on five Quercus species endemic to China, as shown by morphological, anatomical, and molecular analyses. Quercus mongolica and Q. longispica showed high receptivity to mycorrhization by T. melanosporum. The symbioses obtained with these two species and with Quercus senescens were stable for at least 32 months. Averaged over all three oak species, mycorrhization by T. melanosporum significantly enhanced canopy diameter, number of leaves, and mean leaf dimension. In spring 2019, mycorrhization by T. melanosporum accelerated budbreak in Q. mongolica. Quercus fabrei and Q. variabilis formed ectomycorrhizae up to 9 months after inoculation but seedlings died 3 months later, probably because of damage by grazing insects. Quercus pseudosemecarpifolia failed to form ectomycorrhizae. Results suggest that T. melanosporum-mycorrhized Q. mongolica and Q. longispica seedlings could be tested for ascocarp production and increased performance in the field.
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Affiliation(s)
- Ran Wang
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, Yunnan, 650201, People's Republic of China
- SWFU-KIB CAS Joint Institute for Applied Mycology, Kunming, 650224, Yunnan, China
- Department of Crop and Forest Science, University of Lleida, Av. Alcalde Rovira Roure, 191, 25198, Lleida, Spain
| | - Alexis Guerin-Laguette
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, Yunnan, 650201, People's Republic of China.
- The New Zealand Institute for Plant and Food Research Limited, Gerald Street, Lincoln, 7608, New Zealand.
- Visiting Scientist, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
| | - Ruth Butler
- The New Zealand Institute for Plant and Food Research Limited, Gerald Street, Lincoln, 7608, New Zealand
| | - Lan-Lan Huang
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, Yunnan, 650201, People's Republic of China
- SWFU-KIB CAS Joint Institute for Applied Mycology, Kunming, 650224, Yunnan, China
| | - Fu-Qiang Yu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Chinese Academy of Sciences, 132 Lanhei Road, Kunming, Yunnan, 650201, People's Republic of China.
- SWFU-KIB CAS Joint Institute for Applied Mycology, Kunming, 650224, Yunnan, China.
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11
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Li JM, Liang HQ, Qiao P, Su KM, Liu PG, Guo SX, Chen J. Chemical Composition and Antioxidant Activity of Tuber indicum from Different Geographical Regions of China. Chem Biodivers 2019; 16:e1800609. [PMID: 30605248 DOI: 10.1002/cbdv.201800609] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 01/03/2019] [Indexed: 12/26/2022]
Abstract
Tuber indicum, an endemic truffle species in eastern Asian, is an edible mushroom that is both an important export and widely distributed across China. Many existing studies on truffles focus on analyzing their taxonomy, population genetics, volatile organic compounds and artificial cultivation of the truffles, while little information is available about their nutrient composition and pharmacological activity, especially the relationship between chemical composition in ascocarps and their geographic distributions. This study presents a comprehensive investigation of the chemical composition of T. indicum, including free sugars, fatty acids, organic acids, phenolic acids, flavonoids, and polysaccharides, and tracks the antioxidant activity of T. indicum ascocarps collected from five geographical regions of four provinces in P. R. China: Hebei, Tibet, Yunnan, and Liaoning province. Our results showed that T. indicum collected from Qujing, Yunnan province, possessed the highest amount of free sugars (23.67 mg/g dw), total flavonoids (2.31 mg/g dw), total phenolics (4.46 mg/g dw) and the highest DPPH and ABTS radical-scavenging activities. The amount of water-soluble polysaccharides was the highest (115.24 mg/g dw) in ascocarps from Tibet, the total organic acids was the highest (22.073 mg/g dw) in ascocarps from Gongshan, and polyunsaturated fatty acids were most abundant in those from Hebei province. This study reveals that the quantity of chemical compounds in T. indicum varies by geographical origin. Detecting differences in chemical composition may provide important data for understanding the relationship between environmental factors and truffle formation, as well as quality evaluation of the commercial species T. indicum throughout China.
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Affiliation(s)
- Jia-Mei Li
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, P. R. China
| | - Han-Qiao Liang
- Biochemical School, Beijing City University, Beijing, 100083, P. R. China
| | - Peng Qiao
- Shandong Institute of Sericulture, Shandong Academy of Agricultural Sciences, Yantai, 250100, P. R. China
| | - Kai-Mei Su
- Institute of Biotechnology and Germplasm Resources, Yunnan Academy of Agricultural Sciences, Kunming, 650223, P. R. China
| | - Pei-Gui Liu
- Key Laboratory for Plant Diversity and Biogeography at East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, P. R. China
| | - Shun-Xing Guo
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, P. R. China
| | - Juan Chen
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, P. R. China
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Álvarez-Lafuente A, Benito-Matías LF, Peñuelas-Rubira JL, Suz LM. Multi-cropping edible truffles and sweet chestnuts: production of high-quality Castanea sativa seedlings inoculated with Tuber aestivum, its ecotype T. uncinatum, T. brumale, and T. macrosporum. MYCORRHIZA 2018; 28:29-38. [PMID: 29101543 DOI: 10.1007/s00572-017-0805-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
The plantation and management of sweet chestnut (Castanea sativa Mill.) orchards is a common and traditional land use system in many areas of Europe that offers the advantage of simultaneous production of nuts and timber. During the last decades, sweet chestnut has declined dramatically in many regions because of the profound social changes in rural areas coupled with pathogen attacks. Truffles, the hypogeous ascocarps of the ectomycorrhizal genus Tuber, are currently cultivated using host trees inoculated with these fungi for improving production in truffle orchards. The production of good forestry quality chestnut seedlings inoculated with European truffles in nurseries is essential for multi-cropping plantation establishment, but so far, it has not been implemented in agroforestry practices. Moreover, it is necessary to assess the physiological condition of the seedlings due to the high calcium amendment needed for the growth of Tuber spp. mycelium that can become toxic for the host plants. In this study, seedlings of C. sativa were inoculated with Tuber aestivum and its ecotypes T. uncinatum, T. brumale, and T. macrosporum and were grown in a greenhouse using culture conditions favorable for the production of high-quality plants for forestry purposes. At the end of the assay, levels of root colonization and morphological and physiological parameters of the seedlings were measured. The colonization of C. sativa with T. aestivum, its ecotype T. uncinatum, and T. brumale was successful, and the seedlings showed normal growth. Inoculation protocols with T. macrosporum need to be improved. Tuber species formed well-developed ectomycorrhizae on C. sativa in nursery conditions.
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Affiliation(s)
- Amaya Álvarez-Lafuente
- TRAGSA CNRGF "El Serranillo," Ministerio de Agricultura y Pesca, Alimentación y Medio Ambiente, 19080, Guadalajara, Spain.
| | | | - Juan L Peñuelas-Rubira
- TRAGSA CNRGF "El Serranillo," Ministerio de Agricultura y Pesca, Alimentación y Medio Ambiente, 19080, Guadalajara, Spain
| | - Laura M Suz
- Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew, Richmond, TW9 3DS, England
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13
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Marozzi G, Sánchez S, Benucci GMN, Bonito G, Falini LB, Albertini E, Donnini D. Mycorrhization of pecan (Carya illinoinensis) with black truffles: Tuber melanosporum and Tuber brumale. MYCORRHIZA 2017; 27:303-309. [PMID: 27838857 DOI: 10.1007/s00572-016-0743-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
Pecan, Carya illinoinensis, is an economically important nut producing tree that can establish ectomycorrhizal symbiosis with a high diversity of fungi. In the southern USA, truffles (Tuber spp.) sometimes fruit prolifically in cultivated pecan orchards and regularly associate with pecan roots as ectomycorrhizae (ECMs). It has been demonstrated that some valuable European truffle species (e.g., Tuber borchii and Tuber aestivum) can form ECMs with pecan seedlings in nursery conditions. Thus, pecan may represent an attractive alternative host to forest trees for truffle growers given the potential for co-cropping truffles and pecans. To further explore the capacity of pecan to host truffle symbionts, pecan seedlings were inoculated with species of black truffles that are economically important in Europe, T. melanosporum and T. brumale. Ectomycorrhizae were characterized molecularly and their morphology was described in detail. Mycorrhization rates on pecan roots were assessed over a 2-year period. Tuber melanosporum and T. brumale produced well-formed ECMs with a level of root colonization in the first year of 37.3 and 34.5%, respectively. After 24 months, the level of mycorrhization increased for T. brumale (49.4%) and decreased for T. melanosporum (10.5%) inversely to that of non-target ECM greenhouse contaminants (e.g., Sphaerosporella brunnea, Trichophaea woolhopeia, Pulvinula constellatio). To assess whether mating types segregated in T. melanosporum as been reported for other host species, we amplified the mating-type locus from single T. melanosporum ECM belonging to different seedlings over a 2-year period. The two mating idiomorphs were nearly equally represented along the 2-year time span: MAT 1-1-1 decreased from 59.4% in the first year to 48.5% in the second year after inoculation. Data reported in this study add to knowledge on the mycorrhization of pecan trees with commercial truffles and has application to truffle and nut co-cropping systems.
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Affiliation(s)
- Giorgio Marozzi
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Sergio Sánchez
- Forest Resources Department, Agrifood Research and Technology Centre of Aragon (CITA), Agrifood Institute of Aragón-IA2 (CITA-Zaragoza University), 50059, Zaragoza, Spain
| | - Gian Maria Niccolò Benucci
- Department of Plant, Soil and Microbial Sciences, Michigan State University, 48824, East Lansing, MI, USA.
| | - Gregory Bonito
- Department of Plant, Soil and Microbial Sciences, Michigan State University, 48824, East Lansing, MI, USA
| | - Leonardo Baciarelli Falini
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Emidio Albertini
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Domizia Donnini
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
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Benucci GMN, Bonito GM. The Truffle Microbiome: Species and Geography Effects on Bacteria Associated with Fruiting Bodies of Hypogeous Pezizales. MICROBIAL ECOLOGY 2016; 72:4-8. [PMID: 27026101 DOI: 10.1007/s00248-016-0755-3] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
Fungi that produce their fruiting bodies underground within the soil profile are known commonly as truffles. Truffle fruiting bodies harbor a diverse but poorly understood microbial community of bacteria, yeasts, and filamentous fungi. In this study, we used next-generation 454 amplicon pyrosequencing of the V1 and V4 region of the bacterial 16S ribosomal DNA (rDNA) in order to characterize and compare effects of truffle species and geographic origin on the truffle microbiome. We compared truffle microbiomes of the glebal tissue for eight truffle species belonging to four distinct genera within the Pezizales: Tuber, Terfezia, Leucangium, and Kalapuya. The bacterial community within truffles was dominated by Proteobacteria, Bacterioides, Actinobacteria, and Firmicutes. Bacterial richness within truffles was quite low overall, with between 2-23 operational taxonomic units (OTUs). Notably, we found a single Bradyrhizobium OTU to be dominant within truffle species belonging to the genus Tuber, irrespective of geographic origin, but not in other truffle genera sampled. This study offers relevant insights into the truffle microbiome and raises questions concerning the recruitment and function of these fungal-associated bacteria consortia.
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Affiliation(s)
- Gian Maria Niccolò Benucci
- Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, East Lansing, MI, 48824, USA
| | - Gregory M Bonito
- Department of Plant, Soil and Microbial Sciences, Michigan State University, 1066 Bogue Street, East Lansing, MI, 48824, USA.
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Bonito GM, Smith ME. General Systematic Position of the Truffles: Evolutionary Theories. SOIL BIOLOGY 2016. [DOI: 10.1007/978-3-319-31436-5_1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Iotti M, Leonardi M, Lancellotti E, Salerni E, Oddis M, Leonardi P, Perini C, Pacioni G, Zambonelli A. Spatio-temporal dynamic of Tuber magnatum mycelium in natural truffle grounds. PLoS One 2014; 9:e115921. [PMID: 25535741 PMCID: PMC4275250 DOI: 10.1371/journal.pone.0115921] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 11/30/2014] [Indexed: 12/02/2022] Open
Abstract
Tuber magnatum produces the world's most expensive truffle. This fungus produces very rare ectomycorrhizas which are difficult or even impossible to detect in the field. A “real-time” PCR assay was recently developed to quantify and to track T. magnatum mycelium in soil. Here, this technique was used to investigate the spatial distribution of T. magnatum extra-radical mycelium in soil productive patches and its dynamic across seasons. This study was carried out in four different natural T. magnatum truffle grounds located in different Italian regions. During the fruiting seasons, the amount of T. magnatum mycelium was significantly higher around the fruiting points and decreased going farther away from them. Moreover, T. magnatum mycelium inside the productive patches underwent seasonal fluctuations. In early spring, the amount of T. magnatum mycelium was significantly higher than in summer. In summer, probably due to the hot and dry season, T. magnatum mycelium significantly decreased, whereas in autumn it increased again and was concentrated at the putative fruiting points. These results give new insights on T. magnatum ecology and are useful to plan the most appropriate sampling strategy for evaluating the management of a truffle ground.
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Affiliation(s)
- Mirco Iotti
- Department of Agricultural Sciences, Bologna University, Bologna, Italy
| | - Marco Leonardi
- Department of Life, Health and Environmental Sciences, L'Aquila University, L'Aquila, Italy
| | | | - Elena Salerni
- Department of Life Science, Siena University, Siena, Italy
| | - Marilena Oddis
- Department of Life, Health and Environmental Sciences, L'Aquila University, L'Aquila, Italy
| | - Pamela Leonardi
- Department of Agricultural Sciences, Bologna University, Bologna, Italy
| | - Claudia Perini
- Department of Life Science, Siena University, Siena, Italy
| | - Giovanni Pacioni
- Department of Life, Health and Environmental Sciences, L'Aquila University, L'Aquila, Italy
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De Miguel AM, Águeda B, Sánchez S, Parladé J. Ectomycorrhizal fungus diversity and community structure with natural and cultivated truffle hosts: applying lessons learned to future truffle culture. MYCORRHIZA 2014; 24 Suppl 1:S5-S18. [PMID: 24424507 DOI: 10.1007/s00572-013-0554-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 12/20/2013] [Indexed: 06/03/2023]
Abstract
Since the first truffle plantations were established in France, Italy and other parts in the world, many studies have been carried out to improve their productivity and sustainability. Success of plantations is clearly related to the mycorrhizal status of the host trees over the years, from inoculated seedlings to truffle-producing trees. The experience gained in monitoring the ectomycorrhizal fungus status in cultivated truffle grounds has allowed us to develop an extensive catalogue of the ectomycorrhizal fungi present in truffle plantations. Herein, we summarize fungal community data from 85 references that represent different truffle studies in natural habitats and plantations. Approximately 25% of the ectomycorrhizae reported in the 85 references are common to most of the studies. In general, more fungal species are detected in productive plantations than in the non-productive ones. Truffle plantations display a diverse ectomycorrhizal fungal community, in which species of the genus Tuber are well represented. Tuber rufum and some members of Boletales are typically restricted to productive truffle plots. On the other hand, Hebeloma, Laccaria and Russula species are mostly associated with unproductive plots. Ectomycorrhizae belonging to Thelephoraceae are frequently found in mature truffle orchards but do not seem to affect sporocarp production. Several biotic and abiotic factors affect the ectomycorrhizal fungus communities associated with truffle orchards. Among them are plantation age, host species and its growth, the surrounding environment (particularly the presence of other ectomycorrhizal hosts), and plantation management. Understanding the ectomycorrhizal fungal communities inhabiting different plantations may give us clues about the dynamics of the targeted truffles and the possibility of identifying mycorrhizal fungal species that are good indicators of successful truffle plantations.
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Affiliation(s)
- Ana María De Miguel
- Facultad de Ciencias Departamento de Biología Ambiental, Universidad de Navarra, C/Irunlarrea s/n, Pamplona, 31008, Spain,
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