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1. Desert truffle genomes reveal their reproductive modes and new insights into plant–fungal interaction and ectendomycorrhizal lifestyle

Author

Marqués‐Gálvez, José Eduardo, Miyauchi, Shingo, Paolocci, Francesco, Navarro‐Ródenas, Alfonso, Arenas, Francisco, Pérez‐Gilabert, Manuela, Morin, Emmanuelle, Auer, Lucas, Barry, Kerrie W, Kuo, Alan, Grigoriev, Igor V, Martin, Francis M, Kohler, Annegret, and Morte, Asunción

Subjects
Microbiology, Plant Biology, Biological Sciences, Ecology, Genetics, Ascomycota, Cistaceae, Life Style, Mycorrhizae, Reproduction, Symbiosis, arid environment, desert truffles, drought stress, ectendomycorrhizal symbiosis, MAT genes, mycorrhiza, plant&#8211, microbe interactions, plant-microbe interactions, Agricultural and Veterinary Sciences, Plant Biology & Botany, Plant biology, Climate change impacts and adaptation, Ecological applications
Abstract

Desert truffles are edible hypogeous fungi forming ectendomycorrhizal symbiosis with plants of Cistaceae family. Knowledge about the reproductive modes of these fungi and the molecular mechanisms driving the ectendomycorrhizal interaction is lacking. Genomes of the highly appreciated edible desert truffles Terfezia claveryi Chatin and Tirmania nivea Trappe have been sequenced and compared with other Pezizomycetes. Transcriptomes of T. claveryi × Helianthemum almeriense mycorrhiza from well-watered and drought-stressed plants, when intracellular colonizations is promoted, were investigated. We have identified the fungal genes related to sexual reproduction in desert truffles and desert-truffles-specific genomic and secretomic features with respect to other Pezizomycetes, such as the expansion of a large set of gene families with unknown Pfam domains and a number of species or desert-truffle-specific small secreted proteins differentially regulated in symbiosis. A core set of plant genes, including carbohydrate, lipid-metabolism, and defence-related genes, differentially expressed in mycorrhiza under both conditions was found. Our results highlight the singularities of desert truffles with respect to other mycorrhizal fungi while providing a first glimpse on plant and fungal determinants involved in ecto to endo symbiotic switch that occurs in desert truffle under dry conditions.

Published
2021

3. Desert Truffles (Terfezia spp.) Breeding

Author

Morte, Asunción, Arenas, Francisco, Marqués-Gálvez, José E., Andrino, Alberto, Guarnizo, Ángel L., Gutiérrez, Almudena, Berná, Luis Miguel, Pérez-Gilabert, Manuela, Rodríguez, Antonio, Navarro-Ródenas, Alfonso, Al-Khayri, Jameel M., editor, Jain, S. Mohan, editor, and Johnson, Dennis V., editor

Published
2021
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5. Basic and Applied Research for Desert Truffle Cultivation

Author

Morte, Asunción, Pérez-Gilabert, Manuela, Gutiérrez, Almudena, Arenas, Francisco, Marqués-Gálvez, José Eduardo, Bordallo, Juan Julián, Rodríguez, Antonio, Berná, Luis Miguel, Lozano-Carrillo, Cecilia, Navarro-Ródenas, Alfonso, Varma, Ajit, editor, Prasad, Ram, editor, and Tuteja, Narendra, editor

Published
2017
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9. Types of Mycorrhizal Association

Author

Roth-Bejerano, Nurit, Navarro-Ródenas, Alfonso, Gutiérrez, Almudena, Varma, Ajit, Series editor, Kagan-Zur, Varda, editor, Roth-Bejerano, Nurit, editor, Sitrit, Yaron, editor, and Morte, Asunción, editor

Published
2014
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16. Fungal Planet description sheets : 1436 –1477

Author

Tan, Yu Pei, Bishop-Hurley, Sharon L., Shivas, Roger G., Cowan, Don, Maggs-Kölling, Gillian, Maharachchikumbura, Sajeewa S. N., Pinruan, Umpawa, Bransgrove, Kaylene L., De la Peña-Lastra, Saúl, Larsson, Ellen, Lebel, Teresa, Mahadevakumar, Shivannegowda, Mateos, Antonio, Osieck, Eduard R., Rigueiro-Rodríguez, Antonio, Sommai, Sujinda, Ajithkumar, Kadaiah, Akulov, Alex, Anderson, Freda E., Arenas, Francisco, Balashov, Sergey, Bañares, Ángel, Berger, Dave K., Bianchinotti, María V., Bien, Steffen, Bilański, Piotr, Boxshall, Amelia-Grace, Bradshaw, Michael, Broadbridge, Jasmin, Calaça, Francisco J.S., Campos-Quiroz, Carolina, Carrasco-Fernández, Jorge, Castro, Jean F., Chaimongkol, Soravit, Chandranayaka, Siddaiah, Chen, Yanpeng, Comben, David, Dearnaley, John, Ferreira-Sá, Antônio S., Dhileepan, Kunjithapatham, Díaz, Marina L., Divakar, Pradeep K., Xavier-Santos, Solange, Fernández-Bravo, Ana, Gené, Josepa, Guard, Frances E., Guerra, Matías, Gunaseelan, Sugantha, Houbraken, Jos, Janik-Superson, Katarzyna, Jankowiak, Robert, Jeppson, Mikael, Jurjević, Želko, Kaliyaperumal, Malarvizhi, Kelly, Lisa A., Kezo, Kezhocuyi, Khalid, Abdul N., Khamsuntorn, Phongsawat, Kidanemariam, Dawit, Kiran, Munaza, Lacey, Ernest, Langer, Gitta J., López-Llorca, Luis V., Luangsa-ard, Janet J., Lueangjaroenkit, Piyangkun, Lumbsch, H. Thorsten, Maciá-Vicente, Jose G., Mamatha Bhanu, Lakkur S., Marney, Thomas S., Marqués-Gálvez, José E., Morte, Asunción, Naseer, Arooj, Navarro-Ródenas, Alfonso, Oyedele, Oluwawapelumi, Peters, Sandra, Piskorski, Sebastian, Quijada, Luis, Ramírez, Gustavo H., Raja, Kanaga valli, Razzaq, Annum, Rico, Víctor J., Rodríguez, Antonio, Ruszkiewicz-Michalska, Małgorzata, Sánchez, Romina M., Santelices, Cecilia, Savitha, Attihalli S., Serrano, Miguel, Leonardo-Silva, Lucas, Solheim, Halvor, Somrithipol, Sayanh, Sreenivasa, Marikunte Y., Stępniewska, Hanna, Strapagiel, Dominik, Taylor, Tamara, Torres-Garcia, Daniel, Vauras, Jukka, Villarreal, Manuel, Visagie, Cobus M., Wołkowycki, Marek, Yingkunchao, Wittayothin, Zapora, Ewa, Groenewald, Johannes Z., Crous, Pedro W., Westerdijk Fungal Biodiversity Institute, Westerdijk Fungal Biodiversity Institute - Food and Indoor Mycology, Microbial Ecology (ME), Westerdijk Fungal Biodiversity Institute - Evolutionary Phytopathology, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio 'Ramón Margalef', and Fitopatología

Subjects
ITS nrDNA barcodes, LSU, new taxa, systematics, Plantenecologie en Natuurbeheer, Plant Ecology and Nature Conservation, Ecology, Evolution, Behavior and Systematics
Abstract

Novel species of fungi described in this study include those from various countries as follows: Argentina, Colletotrichum araujiae on leaves, stems and fruits of Araujia hortorum. Australia, Agaricus pateritonsus on soil, Curvularia fraserae on dying leaf of Bothriochloa insculpta, Curvularia millisiae from yellowing leaf tips of Cyperus aromaticus, Marasmius brunneolorobustus on well-rotted wood, Nigrospora cooperae from necrotic leaf of Heteropogon contortus, Penicillium tealii from the body of a dead spider, Pseudocercospora robertsiorum from leaf spots of Senna tora, Talaromyces atkinsoniae from gills of Marasmius crinis-equi and Zasmidium pearceae from leaf spots of Smilax glyciphylla. Brazil, Preussia bezerrensis fromair. Chile, Paraconiothyrium kelleni from the rhizosphere of Fragaria chiloensis subsp. chiloensis f. chiloensis. Finland, Inocybe udicola onsoilinmixedforest with Betula pendula, Populus tremula, Picea abies and Alnus incana. France, Myrmecridium normannianum on dead culm of unidentified Poaceae. Germany, Vexillomyces fraxinicola from symptomless stem wood of Fraxinus excelsior. India, Diaporthe limoniae on infected fruit of Limonia acidissima, Didymella naikii on leaves of Cajanus cajan, and Fulvifomes mangroviensis on basal trunk of Aegiceras corniculatum. Indonesia, Penicillium ezekielii from Zea mays kernels. Namibia, Neocamarosporium calicoremae and Neocladosporium calicoremae on stems of Calicorema capitata, and Pleiochaeta adenolobi on symptomatic leaves of Adenolobus pechuelii. Netherlands, Chalara pteridii on stems of Pteridium aquilinum, Neomackenziella juncicola (incl. Neomackenziella gen. nov.)and Sporidesmiella junci from dead culms of Juncus effusus. Pakistan, Inocybe longistipitata on soil in a Quercus forest. Poland, Phytophthora viadrina from rhizosphere soil of Quercus robur, and Septoria krystynae on leaf spots of Viscum album. Portugal (Azores), Acrogenospora stellata on dead wood or bark. South Africa, Phyllactinia greyiae on leaves of Greyia sutherlandii and Punctelia anae on bark of Vachellia karroo. Spain, Anteaglonium lusitanicum on decaying wood of Prunus lusitanica subsp. lusitanica, Hawksworthiomyces riparius from fluvial sediments, Lophiostoma carabassense endophytic in roots of Limbarda crithmoides, and Tuber mohedanoi from calcareussoils. Spain (Canary Islands), Mycena laurisilvae on stumps and woody debris. Sweden, Elaphomyces geminus from soil under Quercus robur. Thailand, Lactifluus chiangraiensis on soil under Pinus merkusii, Lactifluus nakhonphanomensis and Xerocomus sisongkhramensis on soil under Dipterocarpus trees. Ukraine, Valsonectria robiniae on dead twigs of Robinia hispida. USA, Spiralomyces americanus (incl. Spiralomyces gen. nov.) from office air. Morphological and culture characteristics are supported by DNA barcodes.

Published
2022

17. Fungal Planet 1043 – 29 June 2020

Author

Crous, P.W., Wingfield, M.J., Chooi, Y.-H., Gilchrist, C.L.M., Lacey, E., Pitt, J.I., Roets, F., Swart, W.J., Cano-Lira, J.F., Valenzuela-Lopez, N., Hubka, V., Shivas, R.G., Stchigel, A.M., Holdom, D.G., Jurjević, Ž., Kachalkin, A.V., Lebel, T., Lock, C., Martín, M.P., Tan, Y.P., Tomashevskaya, M.A., Vitelli, J.S., Baseia, I.G., Bhatt, V.K., Brandrud, T.E., De Souza, J.T., Dima, B., Lacey, H.J., Lombard, L., Johnston, P.R., Morte, A., Papp, V., Rodríguez, A., Rodríguez-Andrade, E., Semwal, K.C., Tegart, L., Abad, Z.G., Akulov, A., Alvarado, P., Alves, A., Andrade, J.P., Arenas, F., Asenjo, C., Ballarà, J., Barrett, M.D., Berná, L.M., Berraf-Tebbal, A., Bianchinotti, M.V., Bransgrove, K., Burgess, T.I., Carmo, F.S., Chávez, R., Čmoková, A., Dearnaley, J.D.W., de A. Santiago, A.L.C.M., Freitas-Neto, J.F., Denman, S., Douglas, B., Dovana, F., Eichmeier, A., Esteve-Raventós, F., Farid, A., Fedosova, A.G., Ferisin, G., Ferreira, R.J., Ferrer, A., Figueiredo, C.N., Figueiredo, Y.F., Reinoso-Fuentealba, C.G., Garrido-Benavent, I., Cañete-Gibas, C.F., Gil-Durán, C., Glushakova, A.M., Gonçalves, M.F.M., González, M., Gorczak, M., Gorton, C., Guard, F.E., Guarnizo, A.L., Guarro, J., Gutiérrez, M., Hamal, P., Hien, L.T., Hocking, A.D., Houbraken, J., Hunter, G.C., Inácio, C.A., Jourdan, M., Kapitonov, V.I., Kelly, L., Khanh, T.N., Kisło, K., Kiss, L., Kiyashko, A., Kolařík, M., Kruse, J., Kubátová, A., Kučera, V., Kučerová, I., Kušan, I., Lee, H.B., Levicán, G., Lewis, A., Liem, N.V., Liimatainen, K., Lim, H.J., Lyons, M.N., Maciá-Vicente, J.G., Magaña-Dueñas, V., Mahiques, R., Malysheva, E.F., Marbach, P.A.S., Marinho, P., Matočec, N., McTaggart, A.R., Mešić, A., Morin, L., Muñoz-Mohedano, J.M., Navarro-Ródenas, A., Nicolli, C.P., Oliveira, R.L., Otsing, E., Ovrebo, C.L., Pankratov, T.A., Paños, A., Paz-Conde, A., Pérez-Sierra, A., Phosri, C., Pintos, Á., Pošta, A., Prencipe, S., Rubio, E., Saitta, A., Sales, L.S., Sanhueza, L., Shuttleworth, L.A., Smith, J., Smith, M.E., Spadaro, D., Spetik, M., Sochor, M., Sochorová, Z., Sousa, J.O., Suwannasai, N., Tedersoo, L., Thanh, H.M., Thao, L.D., Tkalčec, Z., Vaghefi, N., Venzhik, A.S., Verbeken, A., Vizzini, A., Voyron, S., Wainhouse, M., Whalley, A.J.S., Wrzosek, M., Zapata, M., Zeil-Rolfe, I., Groenewald, J.Z., Crous, Pedro W., Groenewald, Johannes Z., Wingfield, Michael J., Roets, Francois, Swart, Wijnand J., Akulov, Alex, Smith, Jason, Lombard, Lorenzo, Wainhouse, Matt, Douglas, Brian, Denman, Sandra, Johnston, Peter R., Jurjević, Željko, Kolařík, Miroslav, Hubka, Vit, Suwannasai, Nuttika, Martín, María P., Phosri, Cherdchai, Whalley, Anthony J.S., Pitt, John I., Lacey, Ernest, Gilchrist, Cameron L.M., Chooi, Yit-Heng, Figueiredo, Cristiane Nascimento, Sales, Lucas Souza, Andrade, Jackeline Pereira, Figueiredo, Yasmim Freitas, De Souza, Jorge Teodoro, Lacey, Heather J., Hocking, Ailsa D., de L. Oliveira, Renan, Ferreira, Renato J., Lúcio, Paulo Sérgio Marinho, Baseia, Iuri G., Glushakova, Anna M., Tomashevskaya, Maria A., Kachalkin, Aleksey V., Maciá-Vicente, Jose G., Gil-Durán, Carlos, Levicán, Gloria, Chávez, Renato, Sanhueza, Loreto, Ferrer, Alonso, Dima, Bálint, Semwal, Kamal C., Papp, Viktor, Brandrud, Tor Erik, Bhatt, Vinod K., Garrido-Benavent, Isaac, Ballarà, Josep, Liimatainen, Kare, Mahiques, Rafael, Pintos, Ángel, González, Marta, Alvarado, Pablo, Rubio, Enrique, Shuttleworth, Lucas A., Lewis, Alex, Gorton, Caroline, Pérez-Sierra, Ana, Thao, Le Dinh, Hien, Le Thu, Van Liem, Nguyen, Thanh, Ha Minh, Khanh, Tran Ngoc, Saitta, Alessandro, Tedersoo, Leho, Otsing, Eveli, Paz-Conde, Aurelia, Kiss, Levente, Vaghefi, Niloofar, Dearnaley, John D.W., Kelly, Lisa, Bransgrove, Kaylene, Rodríguez-Andrade, Ernesto, Cano-Lira, José F., Stchigel, Alberto M., de Freitas Neto, Julimar F., Sousa, Julieth O., Ovrebo, Clark L., Lee, Hyang Burm, Lim, Hyo Jin, de A. Santiago, André Luiz C.M, Nicolli, Camila Primieri, Carmo, Filipe Sandin, Inácio, Carlos Antonio, Marbach, Phellippe Arthur Santos, Kučera, Viktor, Fedosova, Anna G., Sochorová, Zuzana, Sochor, Michal, Pankratov, Timofey A., Reinoso-Fuentealba, Cintia, Bianchinotti, M. Virginia, Lebel, Teresa, Tegart, Lachlan, Verbeken, Annemieke, Gorczak, Michał, Kisło, Kamil, Wrzosek, Marta, Kruse, Julia, Shivas, Roger G., McTaggart, Alistair R., Lyons, Michael N., Dovana, Francesco, Voyron, Samuele, Vizzini, Alfredo, Ferisin, Giuliano, Raventós, Fernando Esteve, Guard, Frances E., Barrett, Matthew D., Farid, Arian, Smith, Matthew E., Lock, Claire, Vitelli, Joseph S., Holdom, David, Tan, Yu Pei, Kušan, Ivana, Matočec, Neven, Pošta, Ana, Tkalčec, Zdenko, Mešić, Armin, Valenzuela-Lopez, Nicomedes, Guarro, Josep, Čmoková, Adéla, Gonçalves, Micael F.M., Alves, Artur, Spetik, Milan, Berraf-Tebbal, Akila, Eichmeier, Ales, andZcaron, Jurjeviandcacute, eljko, Kučerová, Ivana, Kubátová, Alena, Gibas, Connie F.C., Hamal, Petr, Prencipe, Simona, Spadaro, Davide, Houbraken, Jos, Zapata, Mario, Asenjo, Claudia, Gutiérrez, Mónica, Burgess, Treena I., Abad, Z. Gloria, Kiyashko, Anna, Magaña-Dueñas, Viridiana, Rodríguez, Antonio, Navarro-Ródenas, Alfonso, Arenas, Francisco, Guarnizo, Angel Luigi, Morte, Asunción, Berná, Luis Miguel, Paños, Angela, Muñoz-Mohedano, Justo M., Hunter, Gavin C., Zeil-Rolfe, Isabel, Morin, Louise, Jourdan, Mireille, Venzhik, Aleksandra S., Kapitonov, Vladimir I., and Malysheva, Ekaterina F.

Subjects
ITS nrDNA barcodes, LSU, Fungal Planet description sheets, systematics, new taxa, Research Article
Abstract

Novel species of fungi described in this study include those from various countries as follows: Antarctica, Cladosporium arenosum from marine sediment sand. Argentina, Kosmimatamyces alatophylus (incl. Kosmimatamyces gen. nov.) from soil. Australia, Aspergillus banksianus, Aspergillus kumbius, Aspergillus luteorubrus, Aspergillus malvicolor and Aspergillus nanangensis from soil, Erysiphe medicaginis from leaves of Medicago polymorpha, Hymenotorrendiella communis on leaf litter of Eucalyptus bicostata, Lactifluus albopicri and Lactifluus austropiperatus on soil, Macalpinomyces collinsiae on Eriachne benthamii, Marasmius vagus on soil, Microdochium dawsoniorum from leaves of Sporobolus natalensis, Neopestalotiopsis nebuloides from leaves of Sporobolus elongatus, Pestalotiopsis etonensis from leaves of Sporobolus jacquemontii, Phytophthora personensis from soil associated with dying Grevillea mccutcheonii. Brazil, Aspergillus oxumiae from soil, Calvatia baixaverdensis on soil, Geastrum calycicoriaceum on leaf litter, Greeneria kielmeyerae on leaf spots of Kielmeyera coriacea. Chile, Phytophthora aysenensis on collar rot and stem of Aristotelia chilensis. Croatia, Mollisia gibbospora on fallen branch of Fagus sylvatica. Czech Republic, Neosetophoma hnaniceana from Buxus sempervirens. Ecuador, Exophiala frigidotolerans from soil. Estonia, Elaphomyces bucholtzii in soil. France, Venturia paralias from leaves of Euphorbia paralias. India, Cortinarius balteatoindicus and Cortinarius ulkhagarhiensis on leaf litter. Indonesia, Hymenotorrendiella indonesiana on Eucalyptus urophylla leaf litter. Italy, Penicillium taurinense from indoor chestnut mill. Malaysia, Hemileucoglossum kelabitense on soil, Satchmopsis pini on dead needles of Pinus tecunumanii. Poland, Lecanicillium praecognitum on insects’ frass. Portugal, Neodevriesia aestuarina from saline water. Republic of Korea, Gongronella namwonensis from freshwater. Russia, Candida pellucida from Exomias pellucidus, Heterocephalacria septentrionalis as endophyte from Cladonia rangiferina, Vishniacozyma phoenicis from dates fruit, Volvariella paludosa from swamp. Slovenia, Mallocybe crassivelata on soil. South Africa, Beltraniella podocarpi, Hamatocanthoscypha podocarpi, Coleophoma podocarpi and Nothoseiridium podocarpi (incl. Nothoseiridium gen. nov.) from leaves of Podocarpus latifolius, Gyrothrix encephalarti from leaves of Encephalartos sp., Paraphyton cutaneum from skin of human patient, Phacidiella alsophilae from leaves of Alsophila capensis, and Satchmopsis metrosideri on leaf litter of Metrosideros excelsa. Spain, Cladophialophora cabanerensis from soil, Cortinarius paezii on soil, Cylindrium magnoliae from leaves of Magnolia grandiflora, Trichophoma cylindrospora (incl. Trichophoma gen. nov.) from plant debris, Tuber alcaracense in calcareus soil, Tuber buendiae in calcareus soil. Thailand, Annulohypoxylon spougei on corticated wood, Poaceascoma filiforme from leaves of unknown Poaceae. UK, Dendrostoma luteum on branch lesions of Castanea sativa, Ypsilina buttingtonensis from heartwood of Quercus sp. Ukraine, Myrmecridium phragmiticola from leaves of Phragmites australis. USA, Absidia pararepens from air, Juncomyces californiensis (incl. Juncomyces gen. nov.) from leaves of Juncus effusus, Montagnula cylindrospora from a human skin sample, Muriphila oklahomaensis (incl. Muriphila gen. nov.) on outside wall of alcohol distillery, Neofabraea eucalyptorum from leaves of Eucalyptus macrandra, Diabolocovidia claustri (incl. Diabolocovidia gen. nov.) from leaves of Serenoa repens, Paecilomyces penicilliformis from air, Pseudopezicula betulae from leaves of leaf spots of Populus tremuloides. Vietnam, Diaporthe durionigena on branches of Durio zibethinus and Roridomyces pseudoirritans on rotten wood. Morphological and culture characteristics are supported by DNA barcodes.

Published
2020

18. Fungal Planet 953 – 18 December 2019

Author

Crous, P.W., Wingfield, M.J., Lombard, L., Roets, F., Swart, W.J., Alvarado, P., Carnegie, A.J., Moreno, G., Luangsaard, J., Thangavel, R., Alexandrova, A.V., Baseia, I.G., Bellanger, J.-M., Bessette, A.E., Bessette, A.R., De la Peña-Lastra, S., García, D., Gené, J., Pham, T.H.G., Heykoop, M., Malysheva, E., Malysheva, V., Martín, M.P., Morozova, O.V., Noisripoom, W., Overton, B.E., Rea, A.E., Sewall, B.J., Smith, M.E., Smyth, C.W., Tasanathai, K., Visagie, C.M., Adamčík, S., Alves, A., Andrade, J.P., Aninat, M.J., Araújo, R.V.B., Bordallo, J.J., Boufleur, T., Baroncelli, R., Barreto, R.W., Bolin, J., Cabero, J., Caboň, M., Cafà, G., Caffot, M.L.H., Cai, L., Carlavilla, J.R., Chávez, R., de Castro, R.R.L., Delgat, L., Deschuyteneer, D., Dios, M.M., Domínguez, L.S., Evans, H.C., Eyssartier, G., Ferreira, B.W., Figueiredo, C.N., Liu, F., Fournier, J., Galli-Terasawa, L.V., Gil-Durán, C., Glienke, C., Gonçalves, M.F.M., Gryta, H., Guarro, J., Himaman, W., Hywel-Jones, N., Iturrieta-González, I., Ivanushkina, N.E., Jargeat, P., Khalid, A.N., Khan, J., Kiran, M., Kiss, L., Kochkina, G.A., Kolařík, M., Kubátová, A., Lodge, D.J., Loizides, M., Luque, D., Manjón, J.L., Marbach, P.A.S., Massola, N.S., Mata, M., Miller, A.N., Mongkolsamrit, S., Moreau, P.-A., Morte, A., Mujic, A., Navarro-Ródenas, A., Németh, M.Z., Nóbrega, T.F., Nováková, A., Olariaga, I., Ozerskaya, S.M., Palma, M.A., Petters-Vandresen, D.A.L., Piontelli, E., Popov, E.S., Rodríguez, A., Requejo, Ó., Rodrigues, A.C.M., Rong, I.H., Roux, J., Seifert, K.A., Silva, B.D.B., Sklenář, F., Smith, J.A., Sousa, J.O., Souza, H.G., De Souza, J.T., Švec, K., Tanchaud, P., Tanney, J.B., Terasawa, F., Thanakitpipattana, D., Torres-Garcia, D., Vaca, I., Vaghefi, N., van Iperen, A.L., Vasilenko, O.V., Verbeken, A., Yilmaz, N., Zamora, J.C., Zapata, M., Jurjević, Ž., Groenewald, J.Z., Crous, Pedro W., van Iperen, Arien L., Groenewald, Johannes Z., Thangavel, Raja, Carnegie, Angus J., Wingfield, Michael J., Roux, Jolanda, Jurjević, Željko, Roets, Francois, Swart, Wijnand J., Smith, Jason A., Lombard, Lorenzo, Moreno, Gabriel, Carlavilla, Juan Ramón, Manjón, José Luis, Bellanger, Jean-Michel, Olariaga, Ibai, Giang, Pham Thi Ha, Alexandrova, Alina V., Morozova, Olga V., Rodrigues, Ana C.M., Baseia, Iuri G., Martín, María P., De la Peña-Lastra, Saúl, Alvarado, Pablo, Requejo, Óscar, Tanchaud, Patrice, Eyssartier, Guillaume, Jargeat, Patricia, Gryta, Hervé, Gil-Durán, Carlos, Chávez, Renato, Vaca, Inmaculada, Loizides, Michael, Moreau, Pierre-Arthur, Zapata, Mario, Palma, María Antonieta, Aninat, María José, Piontelli, Eduardo, Luangsa-ard, Jennifer, Tasanathai, Kanoksri, Noisripoom, Wasana, Hywel-Jones, Nigel, Mongkolsamrit, Suchada, Luangsa-ard, Janet Jennifer, Himaman, Winanda, Garcia, Daniel Torres, Guarro, Josep, Gené, Josepa, Petters-Vandresen, Desirrê Alexia Lourenço, Galli-Terasawa, Lygia Vitória, Terasawa, Francisco, Glienke, Chirlei, Araújo, Ruane V.B., Silva, Bianca D.B., Sousa, Julieth O., Zamora, Juan Carlos, Dios, Maria Martha, Caffot, María Luciana Hernández, Domínguez, Laura S., Kiss, Levente, Vaghefi, Niloofar, Németh, Márk Z., Miller, Andrew N., Fournier, Jacques, Nóbrega, Thaisa F., Ferreira, Bruno W., Barreto, Robert W., Evans, Harry C., Delgat, Lynn, Verbeken, Annemieke, Lodge, D. Jean, Thanakitpipattana, Donnaya, Visagie, Cobus M., Rong, Isabel H., Andrade, Jackeline Pereira, Marbach, Phellippe Arthur Santos, De Souza, Jorge Teodoro, Malysheva, Ekaterina, Malysheva, Vera, Deschuyteneer, Daniel, Heykoop, Michel, Mata, Milagro, Rea, Abigail E., Smyth, Christopher W., Overton, Barrie E., Sewall, Brent J., Smith, Matthew E., Mujic, Alija, Bolin, Jason, Bessette, Arleen, Bessette, Alan, Kiran, Munazza, Khalid, Abdul Nasir, Khan, Junaid, Adamčík, Slavomír, Caboň, Miroslav, Liu, Fang, Cai, Lei, Tanney, Joey B., Seifert, Keith A., Baroncelli, Riccardo, Cafà, Giovanni, de Castro, Renata Rebellato Linhares, Boufleur, Thais, Junior, Nelson Sidnei Massola, Yilmaz, Neriman, Nováková, Alena, Švec, Karel, Sklenář, František, Kolařík, Miroslav, Kubátová, Alena, Rodríguez, Antonio, Navarro-Ródenas, Alfonso, Morte, Asunción, Cabero, Julio, Luque, Diego, Gonçalves, Micael F.M., Alves, Artur, Bordallo, Juan Julián, Pham, Thi Ha Giang, Popov, Eugene S., Iturrieta-González, Isabel, García, Dania, Ivanushkina, Nataliya E., Kochkina, Galina A., Vasilenko, Oleg V., and Ozerskaya, Svetlana M.

Subjects
ITS nrDNA barcodes, LSU, Fungal Planet description sheets, systematics, new taxa, Research Article
Abstract

Novel species of fungi described in this study include those from various countries as follows: Antarctica, Apenidiella antarctica from permafrost, Cladosporium fildesense from an unidentified marine sponge. Argentina, Geastrum wrightii on humus in mixed forest. Australia, Golovinomyces glandulariae on Glandularia aristigera, Neoanungitea eucalyptorum on leaves of Eucalyptus grandis, Teratosphaeria corymbiicola on leaves of Corymbia ficifolia, Xylaria eucalypti on leaves of Eucalyptus radiata. Brazil, Bovista psammophila on soil, Fusarium awaxy on rotten stalks of Zea mays, Geastrum lanuginosum on leaf litter covered soil, Hermetothecium mikaniae-micranthae (incl. Hermetothecium gen. nov.) on Mikania micrantha, Penicillium reconvexovelosoi in soil, Stagonosporopsis vannaccii from pod of Glycine max. British Virgin Isles, Lactifluus guanensis on soil. Canada, Sorocybe oblongispora on resin of Picea rubens. Chile, Colletotrichum roseum on leaves of Lapageria rosea. China, Setophoma caverna from carbonatite in Karst cave. Colombia, Lareunionomyces eucalypticola on leaves of Eucalyptus grandis. Costa Rica, Psathyrella pivae on wood. Cyprus, Clavulina iris on calcareous substrate. France, Chromosera ambigua and Clavulina iris var. occidentalis on soil. French West Indies, Helminthosphaeria hispidissima on dead wood. Guatemala, Talaromyces guatemalensis in soil. Malaysia, Neotracylla pini (incl. Tracyllales ord. nov. and Neotracylla gen. nov.) and Vermiculariopsiella pini on needles of Pinus tecunumanii. New Zealand, Neoconiothyrium viticola on stems of Vitis vinifera, Parafenestella pittospori on Pittosporum tenuifolium, Pilidium novae-zelandiae on Phoenix sp. Pakistan, Russula quercus-floribundae on forest floor. Portugal, Trichoderma aestuarinum from saline water. Russia, Pluteus liliputianus on fallen branch of deciduous tree, Pluteus spurius on decaying deciduous wood or soil. South Africa, Alloconiothyrium encephalarti, Phyllosticta encephalarticola and Neothyrostroma encephalarti (incl. Neothyrostroma gen. nov.) on leaves of Encephalartos sp., Chalara eucalypticola on leaf spots of Eucalyptus grandis × urophylla, Clypeosphaeria oleae on leaves of Olea capensis, Cylindrocladiella postalofficium on leaf litter of Sideroxylon inerme, Cylindromonium eugeniicola (incl. Cylindromonium gen. nov.) on leaf litter of Eugenia capensis, Cyphellophora goniomatis on leaves of Gonioma kamassi, Nothodactylaria nephrolepidis (incl. Nothodactylaria gen. nov. and Nothodactylariaceae fam. nov.) on leaves of Nephrolepis exaltata, Falcocladium eucalypti and Gyrothrix eucalypti on leaves of Eucalyptus sp., Gyrothrix oleae on leaves of Olea capensis subsp. macrocarpa, Harzia metrosideri on leaf litter of Metrosideros sp., Hippopotamyces phragmitis (incl. Hippopotamyces gen. nov.) on leaves of Phragmites australis, Lectera philenopterae on Philenoptera violacea, Leptosillia mayteni on leaves of Maytenus heterophylla, Lithohypha aloicola and Neoplatysporoides aloes on leaves of Aloe sp., Millesimomyces rhoicissi (incl. Millesimomyces gen. nov.) on leaves of Rhoicissus digitata, Neodevriesia strelitziicola on leaf litter of Strelitzia nicolai, Neokirramyces syzygii (incl. Neokirramyces gen. nov.) on leaf spots of Syzygium sp., Nothoramichloridium perseae (incl. Nothoramichloridium gen. nov. and Anungitiomycetaceae fam. nov.) on leaves of Persea americana, Paramycosphaerella watsoniae on leaf spots of Watsonia sp., Penicillium cuddlyae from dog food, Podocarpomyces knysnanus (incl. Podocarpomyces gen. nov.) on leaves of Podocarpus falcatus, Pseudocercospora heteropyxidicola on leaf spots of Heteropyxis natalensis, Pseudopenidiella podocarpi, Scolecobasidium podocarpi and Ceramothyrium podocarpicola on leaves of Podocarpus latifolius, Scolecobasidium blechni on leaves of Blechnum capense, Stomiopeltis syzygii on leaves of Syzygium chordatum, Strelitziomyces knysnanus (incl. Strelitziomyces gen. nov.) on leaves of Strelitzia alba, Talaromyces clemensii from rotting wood in goldmine, Verrucocladosporium visseri on Carpobrotus edulis. Spain, Boletopsis mediterraneensis on soil, Calycina cortegadensisi on a living twig of Castanea sativa, Emmonsiellopsis tuberculata in fluvial sediments, Mollisia cortegadensis on dead attached twig of Quercus robur, Psathyrella ovispora on soil, Pseudobeltrania lauri on leaf litter of Laurus azorica, Terfezia dunensis in soil, Tuber lucentum in soil, Venturia submersa on submerged plant debris. Thailand, Cordyceps jakajanicola on cicada nymph, Cordyceps kuiburiensis on spider, Distoseptispora caricis on leaves of Carex sp., Ophiocordyceps khonkaenensis on cicada nymph. USA, Cytosporella juncicola and Davidiellomyces juncicola on culms of Juncus effusus, Monochaetia massachusettsianum from air sample, Neohelicomyces melaleucae and Periconia neobrittanica on leaves of Melaleuca styphelioides × lanceolata, Pseudocamarosporium eucalypti on leaves of Eucalyptus sp., Pseudogymnoascus lindneri from sediment in a mine, Pseudogymnoascus turneri from sediment in a railroad tunnel, Pulchroboletus sclerotiorum on soil, Zygosporium pseudomasonii on leaf of Serenoa repens. Vietnam, Boletus candidissimus and Veloporphyrellus vulpinus on soil. Morphological and culture characteristics are supported by DNA barcodes.

Published
2019

25. Desert truffle genomes reveal their reproductive modes and new insights into plant–fungal interaction and ectendomycorrhizal lifestyle

Author

Marqués‐Gálvez, José Eduardo, primary, Miyauchi, Shingo, additional, Paolocci, Francesco, additional, Navarro‐Ródenas, Alfonso, additional, Arenas, Francisco, additional, Pérez‐Gilabert, Manuela, additional, Morin, Emmanuelle, additional, Auer, Lucas, additional, Barry, Kerrie W., additional, Kuo, Alan, additional, Grigoriev, Igor V., additional, Martin, Francis M., additional, Kohler, Annegret, additional, and Morte, Asunción, additional

Published
2020
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30. Elevated atmospheric CO2 modifies responses to water‐stress and flowering of Mediterranean desert truffle mycorrhizal shrubs.

Author

Marqués‐Gálvez, José Eduardo, Navarro‐Ródenas, Alfonso, Peguero‐Pina, José Javier, Arenas, Francisco, Guarnizo, Angel Luigi, Gil‐Pelegrín, Eustaquio, and Morte, Asunción

Subjects
*WATER efficiency, *MYCORRHIZAL plants, *TRUFFLES, *FLOWERING of plants, *PHYTOPATHOGENIC fungi, *ATMOSPHERIC carbon dioxide, *CARBON dioxide, *SHRUBS
Abstract

Predicted increases in atmospheric concentration of carbon dioxide (CO2) coupled with increased temperatures and drought are expected to strongly influence the development of most of the plant species in the world, especially in areas with high risk of desertification like the Mediterranean basin. Helianthemum almeriense is an ecologically important Mediterranean shrub with an added interest because it serves as the host for the Terfezia claveryi mycorrhizal fungus, which is a desert truffle with increasingly commercial interest. Although both plant and fungi are known to be well adapted to dry conditions, it is still uncertain how the increase in atmospheric CO2 will influence them. In this article we have addressed the physiological responses of H. almeriense × T. claveryi mycorrhizal plants to increases in atmospheric CO2 coupled with drought and high vapor pressure deficit. This work reports one of the few estimations of mesophyll conductance in a drought deciduous Mediterranean shrub and evaluates its role in photosynthesis limitation. High atmospheric CO2 concentrations help desert truffle mycorrhizal plants to cope with the adverse effects of progressive drought during Mediterranean springs by improving carbon net assimilation, intrinsic water use efficiency and dispersal of the species through increased flowering events. [ABSTRACT FROM AUTHOR]

Published
2020
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32. Las Trufas del Desierto o Turmas

Author

Morte Gómez, Asunción, Gutierrez Abbad, Almudena, and Navarro Ródenas, Alfonso

Subjects
5 - Ciencias puras y naturales::57 - Biología [CDU], Turma, Trufa
Published
2016

33. Laccaria bicolor aquaporin LbAQP1 is required for Hartig net development in trembling aspen ( Populus tremuloides )

Author

Navarro Ródenas, Alfonso, Xu, Hao, Kemppainen, Minna Johanna, Pardo, Alejandro Guillermo, and Zwiazek, Janusz J.

Subjects
Ectomycorrhiza, Laccaria, Ciencias Biológicas, Otras Ciencias Biológicas, Aspen, Aquaporins, CIENCIAS NATURALES Y EXACTAS
Abstract

The development of ectomycorrhizal associations is crucial for growth of many forest trees. However, the signals that are exchanged between the fungus and the host plant during the colonization process are still poorly understood. In this study, we have identified the relationship between expression patterns of Laccaria bicolor aquaporin LbAQP1 and the development of ectomycorrhizal structures in trembling aspen (Populus tremuloides) seedlings. The peak expression of LbAQP1 was 700‐fold higher in the hyphae within the root than in the free‐living mycelium after 24 h of direct interaction with the roots. Moreover, in LbAQP1 knock‐down strains, a non‐mycorrhizal phenotype was developed without the Hartig net and the expression of the mycorrhizal effector protein MiSSP7 quickly declined after an initial peak on day 5 of interaction of the fungal hyphae with the roots. The increase in the expression of LbAQP1 required a direct contact of the fungus with the root and it modulated the expression of MiSSP7. We have also determined that LbAQP1 facilitated NO, H2O2 and CO2 transport when heterologously expressed in yeast. The report demonstrates that the L. bicolor aquaporin LbAQP1 acts as a molecular signalling channel, which is fundamental for the development of Hartig net in root tips of P. tremuloides. Fil: Navarro Ródenas, Alfonso. University of Alberta; Canadá Fil: Xu, Hao. University of Alberta; Canadá Fil: Kemppainen, Minna Johanna. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Pardo, Alejandro Guillermo. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Micología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zwiazek, Janusz J.. University of Alberta; Canadá

Published
2015

38. L accaria bicolor aquaporin LbAQP1 is required for Hartig net development in trembling aspen ( P opulus tremuloides).

Author

Navarro‐RóDenas, Alfonso, Xu, Hao, Kemppainen, Minna, Pardo, Alejandro G., and Zwiazek, Janusz J.

Subjects
*AQUAPORINS, *POPULUS tremuloides, *PLANT development, *PLANT proteins, *TREE growth, *ECTOMYCORRHIZAL fungi
Abstract

The development of ectomycorrhizal associations is crucial for growth of many forest trees. However, the signals that are exchanged between the fungus and the host plant during the colonization process are still poorly understood. In this study, we have identified the relationship between expression patterns of L accaria bicolor aquaporin LbAQP1 and the development of ectomycorrhizal structures in trembling aspen ( P opulus tremuloides) seedlings. The peak expression of LbAQP1 was 700-fold higher in the hyphae within the root than in the free-living mycelium after 24 h of direct interaction with the roots. Moreover, in LbAQP1 knock-down strains, a non-mycorrhizal phenotype was developed without the Hartig net and the expression of the mycorrhizal effector protein MiSSP7 quickly declined after an initial peak on day 5 of interaction of the fungal hyphae with the roots. The increase in the expression of LbAQP1 required a direct contact of the fungus with the root and it modulated the expression of MiSSP7. We have also determined that LbAQP1 facilitated NO, H2O2 and CO2 transport when heterologously expressed in yeast. The report demonstrates that the L . bicolor aquaporin LbAQP1 acts as a molecular signalling channel, which is fundamental for the development of Hartig net in root tips of P . tremuloides. [ABSTRACT FROM AUTHOR]

Published
2015
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41. Physiological parameters of desert truffle mycorrhizal Helianthemun almeriense plants cultivated in orchards under water deficit conditions.

Author

Morte, Asunción, Navarro-Ródenas, Alfonso, and Nicolás, Emilio

Abstract

Physiological parameters of mycorrhizal symbiosis by Helianthemum almeriense and Terfezia claveryi in orchards were characterized under water deficit conditions. Our orchard included 40 mycorrhizal and 40 nonmycorrhizal plants. Only mycorrhizal plants survived at the beginning of the experimental period, indicating dependency on fungal symbionts in roots for survival. Drought stress significantly affected the mycorrhizal colonization percentage which was 70% in nonirrigated mycorrhizal and 48% in irrigated mycorrhizal plants. No significant differences in plant growth were observed between nonirrigated and irrigated mycorrhizal plants before and after drought stress. Stomatal conductance was more sensitive to water stress than shoot water potential. It decreased more than two-fold under drought-stress compared to control mycorrhizal plants under irrigation/light saturating conditions, indicating important stomatal closure with water deficit. Plants' water use efficiency improved with drought with stomatal conductance values below 0.3 mol m s. The ability to maintain open stomata and photosynthesis under drought increased carbon supply for growth, and ascocarp fruiting which requires current photosynthates. Basically, H. almeriense shows a conservative water use strategy based mainly on avoiding drought stress by reducing stomatal conductance as soil water potential decreases and atmospheric conditions dry. The results show that mycorrhizal H. almeriense plants maintain good physiological parameters with low soil matric potentials, thus making them an alternative agricultural crop in arid/semi-arid areas. [ABSTRACT FROM AUTHOR]

Published
2011
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42. Análisis del crecimiento y desarrollo miceliar de la trufa del desierto 'Terfezia claveryi' Chatin y de los microorganismos asociados a plantas micorrícicas de trufa del desierto

Author

Arenas Jiménez, Francisco, Morte Gómez, Asunción, Navarro Ródenas, Alfonso, and Escuela Internacional de Doctorado

Subjects
Microorganismos, Botánica, 5 - Ciencias puras y naturales::57 - Biología [CDU], Micología, Microbiología, Suelos
Abstract

Terfezia claveryi Chatin es un hongo hipogeo comestible perteneciente al grupo conocido como “trufas del desierto”, localizado principalmente en ecosistemas áridos y semiáridos de la cuenca del Mediterráneo. En su hábitat natural, T. claveryi establece simbiosis ectendomicorrícica con numerosas especies del género Helianthemum y su fructificación es en primavera. Fue la primera especie dentro de las trufas del desierto en ser cultivada, y desde entonces se ha convertido en un cultivo agrícola alternativo en zonas semiáridas de la Península Ibérica, que ha ido incrementándose durante los últimos años. Esta tesis tiene como objetivo principal el estudio del comportamiento miceliar de la trufa del desierto T. claveryi, tanto en laboratorio como en campo, así como los microorganismos asociados a la rizosfera de plantas hospedantes del género Helianthemum con el fin de conocer más su biología y mejorar su cultivo. Para ello, se planteó el desarrollo de cinco objetivos parciales que dieron lugar a los siguientes resultados y conclusiones. Inicialmente, se evaluó el crecimiento miceliar de T. claveryi en condiciones in vitro, probando en el medio de cultivo MMN (sólido y líquido) distintas concentraciones de macronutrientes, micronutrientes y vitaminas, diferentes condiciones de pH, tamaño de inóculo inicial y relación C/N. Los resultados permitieron diseñar un medio de cultivo MMN optimizado que mejoraba la biomasa miceliar producida. Además, el micelio producido en cultivo líquido en biorreactor permitió la producción de planta micorrizada. En segundo lugar, se estudió la dinámica miceliar de T. claveryi s.l. en suelo durante 4 años en distintas zonas naturales y en plantaciones de la Región de Murcia. Para ello, se diseñaron cebadores específicos para la cuantificación de ADN en suelo con la técnica de PCR cuantitativa a tiempo real, en cada una de las estaciones. Finalmente, se desarrolló un protocolo con la pareja de primers Tc452F/TerclaR, que detecta los productos de PCR. La distribución del micelio fue independiente de las características geográficas de las áreas estudiadas. El año fue la única variable que separó significativamente los datos de micelio en dos grupos (años 1-4 y 2-3), existiendo diferencias significativas sólo para las estaciones de invierno y primavera. Además, el micelio de invierno se correlacionó fuertemente con las variables agroclimáticas del otoño previo, siendo positivas para la precipitación, el índice de aridez y la humedad relativa y negativas para la temperatura máxima, el déficit de presión de vapor y la evapotranspiración. En tercer lugar, se aislaron las bacterias de la rizosfera de T. claveryi x H. almeriense a lo largo de las estaciones. Se realizó una caracterizaron fenotípica, bioquímica, molecular y de las actividades PGPR de las colonias bacterianas (solubilización del fósforo, liberación de auxinas, producción de sideróforos y actividad ACC-deaminasa). Los análisis estadísticos revelaron un enriquecimiento significativo en bacterias solubilizadoras de fósforo (liberadoras de ácidos orgánicos) y con actividad ACC-deaminasa durante la época de fructificación del hongo. Además, se confirmó que un cambio del estado fenológico de la planta determinaba un cambio en la comunidad bacteriana vinculado a sus rasgos PGPR. Por último, para conocer la comunidad de hongos asociados a plantas productoras de ascocarpos frente a las plantas no productoras se utilizaron herramientas de secuenciación masiva de ADN, tanto en suelo como en raíz. Se encontraron distintos patrones en la composición de especies de hongos en función de la productividad. Además, algunos modos tróficos fúngicos fueron identificados como relevantes por tener un efecto positivo o negativo sobre la producción de ascocarpos. Finalmente, se encontraron un grupo de OTUs significativos asociados a zonas productivas, que podrían usarse como marcadores para la localización de trufas del desierto. Terfezia claveryi Chatin is an edible hypogeous fungus belonging to the group known as "desert truffles", mainly found in arid and semi-arid ecosystems of the Mediterranean basin. In its natural habitat, T. claveryi establishes ectendomycorrhizal symbiosis with several species of the genus Helianthemum and its fruiting is in spring. Moreover, it is the first species of desert truffle to be cultivated and has become an alternative agricultural crop in semi-arid areas of the Iberian Peninsula, which has been increasing in recent years. The main objective of this thesis is to study the mycelial behaviour of the desert truffle T. claveryi, both in the laboratory and in the field, as well as the microorganisms associated with the rhizosphere of host plants of the genus Helianthemum. To this end, five partial objectives were developed, which led to the following results and conclusions. First, the mycelial growth of T. claveryi was evaluated under in vitro conditions by testing the MMN culture medium (solid and liquid) with different concentrations of macronutrients, micronutrients and vitamins, and under different conditions of pH, initial inoculum size and C/N ratio. The results yielded an optimised MMN culture medium that improved the mycelial biomass produced. In addition, the mycelium produced in liquid culture in bioreactor was used for inoculation and production of desert truffle mycorrhizal plants. Secondly, the seasonal dynamics of T. claveryi s.l. mycelium was studied in soil during 4 years in different natural areas and in plantations in the Region of Murcia. For this purpose, specific primers were designed for DNA quantification using real-time PCR in each of the seasons. SYBR-Green based qPCR protocol was developed with the primer pair Tc452F/TerclaR as a suitable candidate to detect the specific target. Mycelial distribution in different soils was independent of the geographical features of the experimental site. The analysis revealed that year as the only factor that significantly separated the mycelial data into two groups (years 1-4 and 2-3), where significant differences were only found for the winter and spring seasons. Moreover, winter mycelium was strongly correlated with agroclimatic variables in autumn season, in which precipitation, aridity index and relative humidity were positive and maximum temperature, vapor pressure deficit and evapotranspiration were negative correlated. Thirdly, bacteria were isolated from the rhizosphere of T. claveryi x H. almeriense across seasons, or from the different stages of host plant phenology. Phenotypic, biochemical, molecular and PGPR activities of the bacterial colonies (phosphorus solubilisation, auxin release, siderophore production and ACC-deaminase activity) were characterized. Statistical analyses revealed that there was a significant enrichment in phosphorus solubilising bacteria (organic acid releasing) and bacteria with ACC-deaminase activity during the fruiting season of the fungus (spring). Moreover, it was also confirmed that a change in the phenological state of the plant determined a change in the bacterial community linked to its PGPR traits. Finally, to understand the fungal community associated with ascocarp productive plants versus non-productive plants, large-scale sequencing tools for DNA were used to perform a metagenomics assay, both in soil and root. Different patterns in fungal species composition were found by productivity. In addition, some trophic modes of the fungal species obtained were identified as relevant for having a positive or negative effect on ascocarp productivity in plantation. Furthermore, a group of significant OTUs associated with productive areas were found, which could be used as markers for the localization of desert truffles.

Published
2021

43. Elevated atmospheric CO 2 modifies responses to water-stress and flowering of Mediterranean desert truffle mycorrhizal shrubs.

Author

Marqués-Gálvez JE, Navarro-Ródenas A, Peguero-Pina JJ, Arenas F, Guarnizo AL, Gil-Pelegrín E, and Morte A

Subjects
Carbon Dioxide, Symbiosis, Ascomycota, Cistaceae, Mycorrhizae
Abstract

Predicted increases in atmospheric concentration of carbon dioxide (CO 2 ) coupled with increased temperatures and drought are expected to strongly influence the development of most of the plant species in the world, especially in areas with high risk of desertification like the Mediterranean basin. Helianthemum almeriense is an ecologically important Mediterranean shrub with an added interest because it serves as the host for the Terfezia claveryi mycorrhizal fungus, which is a desert truffle with increasingly commercial interest. Although both plant and fungi are known to be well adapted to dry conditions, it is still uncertain how the increase in atmospheric CO 2 will influence them. In this article we have addressed the physiological responses of H. almeriense × T. claveryi mycorrhizal plants to increases in atmospheric CO 2 coupled with drought and high vapor pressure deficit. This work reports one of the few estimations of mesophyll conductance in a drought deciduous Mediterranean shrub and evaluates its role in photosynthesis limitation. High atmospheric CO 2 concentrations help desert truffle mycorrhizal plants to cope with the adverse effects of progressive drought during Mediterranean springs by improving carbon net assimilation, intrinsic water use efficiency and dispersal of the species through increased flowering events., (© 2020 Scandinavian Plant Physiology Society.)

Published
2020
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