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Artikel: Ultrastructure of the ascus apical apparatus of Encoelia furfuracea (Helotiales)

Pärtel, Kadri

Mycological progress. 2014 Nov., v. 13, no. 4

2014

Abstract: The ultrastructural characteristics of the ascus apical apparatus of Encoelia furfuracea are described by means of transmission electron microscopy. The structure of its ascus apex is considerably different from that of E. tiliacea and E. fimbriata, and ... ...

Abstract	The ultrastructural characteristics of the ascus apical apparatus of Encoelia furfuracea are described by means of transmission electron microscopy. The structure of its ascus apex is considerably different from that of E. tiliacea and E. fimbriata, and from other members of Helotiales in which these structures have been studied. Remarkable interspecific differences in the ascus apical apparatus provide additional data indicating heterogeneity of the genus.
Schlagwörter	Helotiales ; interspecific variation ; transmission electron microscopy ; ultrastructure
Sprache	Englisch
Erscheinungsverlauf	2014-11
Umfang	p. 981-986.
Erscheinungsort	Springer-Verlag
Dokumenttyp	Artikel
ZDB-ID	2226747-5
ISSN	1861-8952 ; 1617-416X
ISSN (online)	1861-8952
ISSN	1617-416X
DOI	10.1007/s11557-014-0982-2
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel: A multigene phylogeny toward a new phylogenetic classification of

Johnston, Peter R / Quijada, Luis / Smith, Christopher A / Baral, Hans-Otto / Hosoya, Tsuyoshi / Baschien, Christiane / Pärtel, Kadri / Zhuang, Wen-Ying / Haelewaters, Danny / Park, Duckchul / Carl, Steffen / López-Giráldez, Francesc / Wang, Zheng / Townsend, Jeffrey P

IMA fungus

2019 Band 10, Seite(n) 1

Abstract: Fungi in the ... ...

Abstract	Fungi in the class
Sprache	Englisch
Erscheinungsdatum	2019-06-07
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	2666116-0
ISSN	2210-6359 ; 2210-6340
ISSN (online)	2210-6359
ISSN	2210-6340
DOI	10.1186/s43008-019-0002-x
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Ascomycetes associated with ectomycorrhizas: molecular diversity and ecology with particular reference to the Helotiales

Tedersoo, Leho / Pärtel, Kadri / Jairus, Teele / Gates, Genevieve / Põldmaa, Kadri / Tamm, Heidi

Environmental microbiology. 2009 Dec., v. 11, no. 12

2009

Abstract: Mycorrhizosphere microbes enhance functioning of the plant-soil interface, but little is known of their ecology. This study aims to characterize the ascomycete communities associated with ectomycorrhizas in two Tasmanian wet sclerophyll forests. We ... ...

Abstract	Mycorrhizosphere microbes enhance functioning of the plant-soil interface, but little is known of their ecology. This study aims to characterize the ascomycete communities associated with ectomycorrhizas in two Tasmanian wet sclerophyll forests. We hypothesize that both the phyto- and mycobiont, mantle type, soil microbiotope and geographical distance affect the diversity and occurrence of the associated ascomycetes. Using the culture-independent rDNA sequence analysis, we demonstrate a high diversity of these fungi on different hosts and habitats. Plant host has the strongest effect on the occurrence of the dominant species and community composition of ectomycorrhiza-associated fungi. Root endophytes, soil saprobes, myco-, phyto- and entomopathogens contribute to the ectomycorrhiza-associated ascomycete community. Taxonomically these Ascomycota mostly belong to the orders Helotiales, Hypocreales, Chaetothyriales and Sordariales. Members of Helotiales from both Tasmania and the Northern Hemisphere are phylogenetically closely related to root endophytes and ericoid mycorrhizal fungi, suggesting their strong ecological and evolutionary links. Ectomycorrhizal mycobionts from Australia and the Northern Hemisphere are taxonomically unrelated to each other and phylogenetically distant to other helotialean root-associated fungi, indicating independent evolution. The ubiquity and diversity of the secondary root-associated fungi should be considered in studies of mycorrhizal communities to avoid overestimating the richness of true symbionts.
Schlagwörter	Chaetothyriales ; Helotiales ; Hypocreales ; Sordariales ; ectomycorrhizae ; endophytes ; entomopathogens ; evolution ; habitats ; host plants ; mycorrhizal fungi ; nucleotide sequences ; ribosomal DNA ; roots ; sclerophyll forests ; sequence analysis ; soil ; species diversity ; symbionts ; Tasmania
Sprache	Englisch
Erscheinungsverlauf	2009-12
Umfang	p. 3166-3178.
Verlag	Blackwell Publishing Ltd
Erscheinungsort	Oxford, UK
Dokumenttyp	Artikel
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/j.1462-2920.2009.02020.x
Datenquelle	NAL Katalog (AGRICOLA)

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Artikel ; Online: Ascomycetes associated with ectomycorrhizas: molecular diversity and ecology with particular reference to the Helotiales.

Tedersoo, Leho / Pärtel, Kadri / Jairus, Teele / Gates, Genevieve / Põldmaa, Kadri / Tamm, Heidi

Environmental microbiology

2009 Band 11, Heft 12, Seite(n) 3166–3178

Abstract	Mycorrhizosphere microbes enhance functioning of the plant-soil interface, but little is known of their ecology. This study aims to characterize the ascomycete communities associated with ectomycorrhizas in two Tasmanian wet sclerophyll forests. We hypothesize that both the phyto- and mycobiont, mantle type, soil microbiotope and geographical distance affect the diversity and occurrence of the associated ascomycetes. Using the culture-independent rDNA sequence analysis, we demonstrate a high diversity of these fungi on different hosts and habitats. Plant host has the strongest effect on the occurrence of the dominant species and community composition of ectomycorrhiza-associated fungi. Root endophytes, soil saprobes, myco-, phyto- and entomopathogens contribute to the ectomycorrhiza-associated ascomycete community. Taxonomically these Ascomycota mostly belong to the orders Helotiales, Hypocreales, Chaetothyriales and Sordariales. Members of Helotiales from both Tasmania and the Northern Hemisphere are phylogenetically closely related to root endophytes and ericoid mycorrhizal fungi, suggesting their strong ecological and evolutionary links. Ectomycorrhizal mycobionts from Australia and the Northern Hemisphere are taxonomically unrelated to each other and phylogenetically distant to other helotialean root-associated fungi, indicating independent evolution. The ubiquity and diversity of the secondary root-associated fungi should be considered in studies of mycorrhizal communities to avoid overestimating the richness of true symbionts.
Mesh-Begriff(e)	Ascomycota/classification ; Ascomycota/genetics ; Ascomycota/isolation & purification ; Biodiversity ; Ecosystem ; Mycorrhizae/classification ; Mycorrhizae/genetics ; Mycorrhizae/isolation & purification ; Phylogeny ; Plant Roots/microbiology ; RNA, Ribosomal, 28S/metabolism ; Soil Microbiology
Chemische Substanzen	RNA, Ribosomal, 28S
Sprache	Englisch
Erscheinungsdatum	2009-12
Erscheinungsland	England
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2020213-1
ISSN	1462-2920 ; 1462-2912
ISSN (online)	1462-2920
ISSN	1462-2912
DOI	10.1111/j.1462-2920.2009.02020.x
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Fungal biogeography. Global diversity and geography of soil fungi.

Tedersoo, Leho / Bahram, Mohammad / Põlme, Sergei / Kõljalg, Urmas / Yorou, Nourou S / Wijesundera, Ravi / Villarreal Ruiz, Luis / Vasco-Palacios, Aída M / Thu, Pham Quang / Suija, Ave / Smith, Matthew E / Sharp, Cathy / Saluveer, Erki / Saitta, Alessandro / Rosas, Miguel / Riit, Taavi / Ratkowsky, David / Pritsch, Karin / Põldmaa, Kadri /

Piepenbring, Meike / Phosri, Cherdchai / Peterson, Marko / Parts, Kaarin / Pärtel, Kadri / Otsing, Eveli / Nouhra, Eduardo / Njouonkou, André L / Nilsson, R Henrik / Morgado, Luis N / Mayor, Jordan / May, Tom W / Majuakim, Luiza / Lodge, D Jean / Lee, Su See / Larsson, Karl-Henrik / Kohout, Petr / Hosaka, Kentaro / Hiiesalu, Indrek / Henkel, Terry W / Harend, Helery / Guo, Liang-dong / Greslebin, Alina / Grelet, Gwen / Geml, Jozsef / Gates, Genevieve / Dunstan, William / Dunk, Chris / Drenkhan, Rein / Dearnaley, John / De Kesel, André / Dang, Tan / Chen, Xin / Buegger, Franz / Brearley, Francis Q / Bonito, Gregory / Anslan, Sten / Abell, Sandra / Abarenkov, Kessy

Science (New York, N.Y.)

2014 Band 346, Heft 6213, Seite(n) 1256688

Abstract: Fungi play major roles in ecosystem processes, but the determinants of fungal diversity and biogeographic patterns remain poorly understood. Using DNA metabarcoding data from hundreds of globally distributed soil samples, we demonstrate that fungal ... ...

Abstract	Fungi play major roles in ecosystem processes, but the determinants of fungal diversity and biogeographic patterns remain poorly understood. Using DNA metabarcoding data from hundreds of globally distributed soil samples, we demonstrate that fungal richness is decoupled from plant diversity. The plant-to-fungus richness ratio declines exponentially toward the poles. Climatic factors, followed by edaphic and spatial variables, constitute the best predictors of fungal richness and community composition at the global scale. Fungi show similar latitudinal diversity gradients to other organisms, with several notable exceptions. These findings advance our understanding of global fungal diversity patterns and permit integration of fungi into a general macroecological framework.
Mesh-Begriff(e)	DNA Barcoding, Taxonomic ; Forests ; Fungi/classification ; Fungi/genetics ; Fungi/physiology ; Geography ; Grassland ; Soil ; Soil Microbiology ; Tundra
Chemische Substanzen	Soil
Sprache	Englisch
Erscheinungsdatum	2014-11-28
Erscheinungsland	United States
Dokumenttyp	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.1256688
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel: Considerations and consequences of allowing DNA sequence data as types of fungal taxa.

Zamora, Juan Carlos / Svensson, Måns / Kirschner, Roland / Olariaga, Ibai / Ryman, Svengunnar / Parra, Luis Alberto / Geml, József / Rosling, Anna / Adamčík, Slavomír / Ahti, Teuvo / Aime, M Catherine / Ainsworth, A Martyn / Albert, László / Albertó, Edgardo / García, Alberto Altés / Ageev, Dmitry / Agerer, Reinhard / Aguirre-Hudson, Begoña / Ammirati, Joe /

Andersson, Harry / Angelini, Claudio / Antonín, Vladimír / Aoki, Takayuki / Aptroot, André / Argaud, Didier / Sosa, Blanca Imelda Arguello / Aronsen, Arne / Arup, Ulf / Asgari, Bita / Assyov, Boris / Atienza, Violeta / Bandini, Ditte / Baptista-Ferreira, João Luís / Baral, Hans-Otto / Baroni, Tim / Barreto, Robert Weingart / Beker, Henry / Bell, Ann / Bellanger, Jean-Michel / Bellù, Francesco / Bemmann, Martin / Bendiksby, Mika / Bendiksen, Egil / Bendiksen, Katriina / Benedek, Lajos / Bérešová-Guttová, Anna / Berger, Franz / Berndt, Reinhard / Bernicchia, Annarosa / Biketova, Alona Yu / Bizio, Enrico / Bjork, Curtis / Boekhout, Teun / Boertmann, David / Böhning, Tanja / Boittin, Florent / Boluda, Carlos G / Boomsluiter, Menno W / Borovička, Jan / Brandrud, Tor Erik / Braun, Uwe / Brodo, Irwin / Bulyonkova, Tatiana / Burdsall, Harold H / Buyck, Bart / Burgaz, Ana Rosa / Calatayud, Vicent / Callac, Philippe / Campo, Emanuele / Candusso, Massimo / Capoen, Brigitte / Carbó, Joaquim / Carbone, Matteo / Castañeda-Ruiz, Rafael F / Castellano, Michael A / Chen, Jie / Clerc, Philippe / Consiglio, Giovanni / Corriol, Gilles / Courtecuisse, Régis / Crespo, Ana / Cripps, Cathy / Crous, Pedro W / da Silva, Gladstone Alves / da Silva, Meiriele / Dam, Marjo / Dam, Nico / Dämmrich, Frank / Das, Kanad / Davies, Linda / De Crop, Eske / De Kesel, Andre / De Lange, Ruben / De Madrignac Bonzi, Bárbara / Dela Cruz, Thomas Edison E / Delgat, Lynn / Demoulin, Vincent / Desjardin, Dennis E / Diederich, Paul / Dima, Bálint / Dios, Maria Martha / Divakar, Pradeep Kumar / Douanla-Meli, Clovis / Douglas, Brian / Drechsler-Santos, Elisandro Ricardo / Dyer, Paul S / Eberhardt, Ursula / Ertz, Damien / Esteve-Raventós, Fernando / Salazar, Javier Angel Etayo / Evenson, Vera / Eyssartier, Guillaume / Farkas, Edit / Favre, Alain / Fedosova, Anna G / Filippa, Mario / Finy, Péter / Flakus, Adam / Fos, Simón / Fournier, Jacques / Fraiture, André / Franchi, Paolo / Molano, Ana Esperanza Franco / Friebes, Gernot / Frisch, Andreas / Fryday, Alan / Furci, Giuliana / Márquez, Ricardo Galán / Garbelotto, Matteo / García-Martín, Joaquina María / Otálora, Mónica A García / Sánchez, Dania García / Gardiennet, Alain / Garnica, Sigisfredo / Benavent, Isaac Garrido / Gates, Genevieve / da Cruz Lima Gerlach, Alice / Ghobad-Nejhad, Masoomeh / Gibertoni, Tatiana B / Grebenc, Tine / Greilhuber, Irmgard / Grishkan, Bella / Groenewald, Johannes Z / Grube, Martin / Gruhn, Gérald / Gueidan, Cécile / Gulden, Gro / Gusmão, Luis Fp / Hafellner, Josef / Hairaud, Michel / Halama, Marek / Hallenberg, Nils / Halling, Roy E / Hansen, Karen / Harder, Christoffer Bugge / Heilmann-Clausen, Jacob / Helleman, Stip / Henriot, Alain / Hernandez-Restrepo, Margarita / Herve, Raphaël / Hobart, Caroline / Hoffmeister, Mascha / Høiland, Klaus / Holec, Jan / Holien, Håkon / Hughes, Karen / Hubka, Vit / Huhtinen, Seppo / Ivančević, Boris / Jagers, Marian / Jaklitsch, Walter / Jansen, AnnaElise / Jayawardena, Ruvishika S / Jeppesen, Thomas Stjernegaard / Jeppson, Mikael / Johnston, Peter / Jørgensen, Per Magnus / Kärnefelt, Ingvar / Kalinina, Liudmila B / Kantvilas, Gintaras / Karadelev, Mitko / Kasuya, Taiga / Kautmanová, Ivona / Kerrigan, Richard W / Kirchmair, Martin / Kiyashko, Anna / Knapp, Dániel G / Knudsen, Henning / Knudsen, Kerry / Knutsson, Tommy / Kolařík, Miroslav / Kõljalg, Urmas / Košuthová, Alica / Koszka, Attila / Kotiranta, Heikki / Kotkova, Vera / Koukol, Ondřej / Kout, Jiří / Kovács, Gábor M / Kříž, Martin / Kruys, Åsa / Kučera, Viktor / Kudzma, Linas / Kuhar, Francisco / Kukwa, Martin / Arun Kumar, T K / Kunca, Vladimír / Kušan, Ivana / Kuyper, Thomas W / Lado, Carlos / Læssøe, Thomas / Lainé, Patrice / Langer, Ewald / Larsson, Ellen / Larsson, Karl-Henrik / Laursen, Gary / Lechat, Christian / Lee, Serena / Lendemer, James C / Levin, Laura / Lindemann, Uwe / Lindström, Håkan / Liu, Xingzhong / Hernandez, Regulo Carlos Llarena / Llop, Esteve / Locsmándi, Csaba / Lodge, Deborah Jean / Loizides, Michael / Lőkös, László / Luangsa-Ard, Jennifer / Lüderitz, Matthias / Lumbsch, Thorsten / Lutz, Matthias / Mahoney, Dan / Malysheva, Ekaterina / Malysheva, Vera / Manimohan, Patinjareveettil / Marin-Felix, Yasmina / Marques, Guilhermina / Martínez-Gil, Rubén / Marson, Guy / Mata, Gerardo / Matheny, P Brandon / Mathiassen, Geir Harald / Matočec, Neven / Mayrhofer, Helmut / Mehrabi, Mehdi / Melo, Ireneia / Mešić, Armin / Methven, Andrew S / Miettinen, Otto / Romero, Ana M Millanes / Miller, Andrew N / Mitchell, James K / Moberg, Roland / Moreau, Pierre-Arthur / Moreno, Gabriel / Morozova, Olga / Morte, Asunción / Muggia, Lucia / González, Guillermo Muñoz / Myllys, Leena / Nagy, István / Nagy, László G / Neves, Maria Alice / Niemelä, Tuomo / Nimis, Pier Luigi / Niveiro, Nicolas / Noordeloos, Machiel E / Nordin, Anders / Noumeur, Sara Raouia / Novozhilov, Yuri / Nuytinck, Jorinde / Ohenoja, Esteri / Fiuza, Patricia Oliveira / Orange, Alan / Ordynets, Alexander / Ortiz-Santana, Beatriz / Pacheco, Leticia / Pál-Fám, Ferenc / Palacio, Melissa / Palice, Zdeněk / Papp, Viktor / Pärtel, Kadri / Pawlowska, Julia / Paz, Aurelia / Peintner, Ursula / Pennycook, Shaun / Pereira, Olinto Liparini / Daniëls, Pablo Pérez / Pérez-De-Gregorio Capella, Miquel À / Del Amo, Carlos Manuel Pérez / Gorjón, Sergio Pérez / Pérez-Ortega, Sergio / Pérez-Vargas, Israel / Perry, Brian A / Petersen, Jens H / Petersen, Ronald H / Pfister, Donald H / Phukhamsakda, Chayanard / Piątek, Marcin / Piepenbring, Meike / Pino-Bodas, Raquel / Esquivel, Juan Pablo Pinzón / Pirot, Paul / Popov, Eugene S / Popoff, Orlando / Álvaro, María Prieto / Printzen, Christian / Psurtseva, Nadezhda / Purahong, Witoon / Quijada, Luis / Rambold, Gerhard / Ramírez, Natalia A / Raja, Huzefa / Raspé, Olivier / Raymundo, Tania / Réblová, Martina / Rebriev, Yury A / de Dios Reyes García, Juan / Ripoll, Miguel Ángel Ribes / Richard, Franck / Richardson, Mike J / Rico, Víctor J / Robledo, Gerardo Lucio / Barbosa, Flavia Rodrigues / Rodriguez-Caycedo, Cristina / Rodriguez-Flakus, Pamela / Ronikier, Anna / Casas, Luis Rubio / Rusevska, Katerina / Saar, Günter / Saar, Irja / Salcedo, Isabel / Martínez, Sergio M Salcedo / Montoya, Carlos A Salvador / Sánchez-Ramírez, Santiago / Sandoval-Sierra, J Vladimir / Santamaria, Sergi / Monteiro, Josiane Santana / Schroers, Hans Josef / Schulz, Barbara / Schmidt-Stohn, Geert / Schumacher, Trond / Senn-Irlet, Beatrice / Ševčíková, Hana / Shchepin, Oleg / Shirouzu, Takashi / Shiryaev, Anton / Siepe, Klaus / Sir, Esteban B / Sohrabi, Mohammad / Soop, Karl / Spirin, Viacheslav / Spribille, Toby / Stadler, Marc / Stalpers, Joost / Stenroos, Soili / Suija, Ave / Sunhede, Stellan / Svantesson, Sten / Svensson, Sigvard / Svetasheva, Tatyana Yu / Świerkosz, Krzysztof / Tamm, Heidi / Taskin, Hatira / Taudière, Adrien / Tedebrand, Jan-Olof / Lahoz, Raúl Tena / Temina, Marina / Thell, Arne / Thines, Marco / Thor, Göran / Thüs, Holger / Tibell, Leif / Tibell, Sanja / Timdal, Einar / Tkalčec, Zdenko / Tønsberg, Tor / Trichies, Gérard / Triebel, Dagmar / Tsurykau, Andrei / Tulloss, Rodham E / Tuovinen, Veera / Sosa, Miguel Ulloa / Urcelay, Carlos / Valade, François / Garza, Ricardo Valenzuela / van den Boom, Pieter / Van Vooren, Nicolas / Vasco-Palacios, Aida M / Vauras, Jukka / Velasco Santos, Juan Manuel / Vellinga, Else / Verbeken, Annemieke / Vetlesen, Per / Vizzini, Alfredo / Voglmayr, Hermann / Volobuev, Sergey / von Brackel, Wolfgang / Voronina, Elena / Walther, Grit / Watling, Roy / Weber, Evi / Wedin, Mats / Weholt, Øyvind / Westberg, Martin / Yurchenko, Eugene / Zehnálek, Petr / Zhang, Huang / Zhurbenko, Mikhail P / Ekman, Stefan

IMA fungus

2018 Band 9, Heft 1, Seite(n) 167–175

Abstract: Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological ... ...

Abstract	Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11
Sprache	Englisch
Erscheinungsdatum	2018-05-24
Erscheinungsland	England
Dokumenttyp	Journal Article
ZDB-ID	2666116-0
ISSN	2210-6359 ; 2210-6340
ISSN (online)	2210-6359
ISSN	2210-6340
DOI	10.5598/imafungus.2018.09.01.10
Datenquelle	MEDical Literature Analysis and Retrieval System OnLINE

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Artikel ; Online: Considerations and consequences of allowing DNA sequence data as types of fungal taxa.

IMA fungus

2018

Abstract	Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN.
Schlagwörter	IMC11 ; nomenclature ; speciation ; taxonomy ; typification ; voucherless fungi
Thema/Rubrik (Code)	612
Erscheinungsdatum	2018-06-01
Erscheinungsland	de
Dokumenttyp	Artikel ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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Artikel ; Online: Considerations and consequences of allowing DNA sequence data as types of fungal taxa.

IMA fungus

2018

Abstract	Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN.
Schlagwörter	IMC11 ; nomenclature ; speciation ; taxonomy ; typification ; voucherless fungi
Thema/Rubrik (Code)	612
Erscheinungsdatum	2018-06-01
Erscheinungsland	de
Dokumenttyp	Artikel ; Online
Datenquelle	BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

Volltext online

Volltext online

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Artikel: Ultrastructure of the ascus apical apparatus of Encoelia furfuracea (Helotiales)

Pärtel, Kadri

Mycological progress

Band v. 13,, Heft no. 4

Abstract	The ultrastructural characteristics of the ascus apical apparatus of Encoelia furfuracea are described by means of transmission electron microscopy. The structure of its ascus apex is considerably different from that of E. tiliacea and E. fimbriata, and from other members of Helotiales in which these structures have been studied. Remarkable interspecific differences in the ascus apical apparatus provide additional data indicating heterogeneity of the genus.
Schlagwörter	transmission electron microscopy ; ultrastructure ; Helotiales ; interspecific variation
Sprache	Englisch
Dokumenttyp	Artikel
ISSN	1617-416X
Datenquelle	AGRIS - International Information System for the Agricultural Sciences and Technology

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