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New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia

Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoi...

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Autores principales: Błaszkowski, Janusz, Jobim, Khadija, Niezgoda, Piotr, Meller, Edward, Malinowski, Ryszard, Milczarski, Paweł, Zubek, Szymon, Magurno, Franco, Casieri, Leonardo, Bierza, Wojciech, Błaszkowski, Tomasz, Crossay, Thomas, Goto, Bruno Tomio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8102679/
https://www.ncbi.nlm.nih.gov/pubmed/33967994
http://dx.doi.org/10.3389/fmicb.2021.655910
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author Błaszkowski, Janusz
Jobim, Khadija
Niezgoda, Piotr
Meller, Edward
Malinowski, Ryszard
Milczarski, Paweł
Zubek, Szymon
Magurno, Franco
Casieri, Leonardo
Bierza, Wojciech
Błaszkowski, Tomasz
Crossay, Thomas
Goto, Bruno Tomio
author_facet Błaszkowski, Janusz
Jobim, Khadija
Niezgoda, Piotr
Meller, Edward
Malinowski, Ryszard
Milczarski, Paweł
Zubek, Szymon
Magurno, Franco
Casieri, Leonardo
Bierza, Wojciech
Błaszkowski, Tomasz
Crossay, Thomas
Goto, Bruno Tomio
author_sort Błaszkowski, Janusz
collection PubMed
description Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole structure that distinguished the two fungi was the laminate layer 2 of their three-layered spore wall, which in spores of the second fungus crushed in PVLG-based mountants contracted and, consequently, transferred into a crown-like structure. Surprisingly, phylogenetic analyses of sequences of the 18S-ITS-28S nuc rDNA and the rpb1 gene indicated that these glomerocarps represent two strongly divergent undescribed species in the family Glomeraceae. The analyses placed the first in the genus Dominikia, and the second in a sister clade to the monospecific generic clade Kamienskia with Kamienskia bistrata. The first species was described here as Dominikia glomerocarpica sp. nov. Because D. glomerocarpica is the first glomerocarp-forming species in Dominikia, the generic description of this genus was emended. The very large phylogenetic distance and the fundamental morphological differences between the second species and K. bistrata suggested us to introduce a new genus, here named as Epigeocarpum gen. nov., and name the new species Epigeocarpum crypticum sp. nov. In addition, our analyses also focused on an arbuscular mycorrhizal fungus originally described as Rhizophagus neocaledonicus, later transferred to the genus Rhizoglomus. The analyses indicated that this species does not belong to any of these two genera but represents a new clade at the rank of genus in the Glomeraceae, here described as Silvaspora gen. nov.
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spelling pubmed-81026792021-05-08 New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia Błaszkowski, Janusz Jobim, Khadija Niezgoda, Piotr Meller, Edward Malinowski, Ryszard Milczarski, Paweł Zubek, Szymon Magurno, Franco Casieri, Leonardo Bierza, Wojciech Błaszkowski, Tomasz Crossay, Thomas Goto, Bruno Tomio Front Microbiol Microbiology Examination of fungal specimens collected in the Atlantic rain forest ecosystems of Northeast Brazil revealed many potentially new epigeous and semihypogeous glomerocarp-producing species of the phylum Glomeromycota. Among them were two fungi that formed unorganized epigeous glomerocarps with glomoid spores of almost identical morphology. The sole structure that distinguished the two fungi was the laminate layer 2 of their three-layered spore wall, which in spores of the second fungus crushed in PVLG-based mountants contracted and, consequently, transferred into a crown-like structure. Surprisingly, phylogenetic analyses of sequences of the 18S-ITS-28S nuc rDNA and the rpb1 gene indicated that these glomerocarps represent two strongly divergent undescribed species in the family Glomeraceae. The analyses placed the first in the genus Dominikia, and the second in a sister clade to the monospecific generic clade Kamienskia with Kamienskia bistrata. The first species was described here as Dominikia glomerocarpica sp. nov. Because D. glomerocarpica is the first glomerocarp-forming species in Dominikia, the generic description of this genus was emended. The very large phylogenetic distance and the fundamental morphological differences between the second species and K. bistrata suggested us to introduce a new genus, here named as Epigeocarpum gen. nov., and name the new species Epigeocarpum crypticum sp. nov. In addition, our analyses also focused on an arbuscular mycorrhizal fungus originally described as Rhizophagus neocaledonicus, later transferred to the genus Rhizoglomus. The analyses indicated that this species does not belong to any of these two genera but represents a new clade at the rank of genus in the Glomeraceae, here described as Silvaspora gen. nov. Frontiers Media S.A. 2021-04-23 /pmc/articles/PMC8102679/ /pubmed/33967994 http://dx.doi.org/10.3389/fmicb.2021.655910 Text en Copyright © 2021 Błaszkowski, Jobim, Niezgoda, Meller, Malinowski, Milczarski, Zubek, Magurno, Casieri, Bierza, Błaszkowski, Crossay and Goto. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Błaszkowski, Janusz
Jobim, Khadija
Niezgoda, Piotr
Meller, Edward
Malinowski, Ryszard
Milczarski, Paweł
Zubek, Szymon
Magurno, Franco
Casieri, Leonardo
Bierza, Wojciech
Błaszkowski, Tomasz
Crossay, Thomas
Goto, Bruno Tomio
New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title_full New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title_fullStr New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title_full_unstemmed New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title_short New Glomeromycotan Taxa, Dominikia glomerocarpica sp. nov. and Epigeocarpum crypticum gen. nov. et sp. nov. From Brazil, and Silvaspora gen. nov. From New Caledonia
title_sort new glomeromycotan taxa, dominikia glomerocarpica sp. nov. and epigeocarpum crypticum gen. nov. et sp. nov. from brazil, and silvaspora gen. nov. from new caledonia
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8102679/
https://www.ncbi.nlm.nih.gov/pubmed/33967994
http://dx.doi.org/10.3389/fmicb.2021.655910
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