Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology

Since 2013 there have been 22 new species of Laccaria described worldwide. Only three of these represent species from the neotropics. In Panama, Laccaria is abundant in monodominant Oreomunnea mexicana (Juglandaceae) forests based on sporocarps and environmental sequencing of roots. This study uses...

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Main Authors: Adriana Corrales, Andrew W. Wilson, Gregory M. Mueller, Clark Ovrebo
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-07-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmicb.2020.01597/full
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author Adriana Corrales
Andrew W. Wilson
Gregory M. Mueller
Clark Ovrebo
author_facet Adriana Corrales
Andrew W. Wilson
Gregory M. Mueller
Clark Ovrebo
author_sort Adriana Corrales
collection DOAJ
description Since 2013 there have been 22 new species of Laccaria described worldwide. Only three of these represent species from the neotropics. In Panama, Laccaria is abundant in monodominant Oreomunnea mexicana (Juglandaceae) forests based on sporocarps and environmental sequencing of roots. This study uses a combination of morphological and phylogenetic evidence to document up to seven species of Laccaria from these forests, one previously described, three described as new, and three requiring more data before being formally described. Molecular data used for phylogenetic analysis include the nuclear ribosomal ITS and 28S regions, along with TEF1 and RPB2. Laccaria stellata, has previously been reported from O. mexicana cloud forests of Panama. Laccaria dallingii sp. nov., L. nitrophila sp. nov., and L. fortunensis sp. nov. are described as new based on morphology and phylogenetic analysis of multiple collections. A taxon referred to as “PAN sp3” is resolved sister to L. stellata. Phylogenetic analysis also resolved two separate clades of Panamanian Laccaria as sister to L. roseoalbescens, a species previously described from Mexico. These three taxa are not described in this paper as there is too little material from which to make effective morphological descriptions even though their placement in phylogenetic analysis identify them as being unique. Ecologically, all described species except for L. fortunensis were amplified from O. mexicana ectomycorrhizal root tips. L. nitrophila was one of the most recovered species from the roots of O. mexicana in a previous study, and it has been shown to respond positively to long term nitrogen addition. Our results expand the knowledge of Laccaria diversity for Central America and highlight that at least some species of Laccaria are nitrophilic in neotropical Juglandaceae forests as well as in temperate forests.
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spelling doaj.art-bd1ecc80ba6f47f9af9998def9e1c8e62022-12-21T19:15:23ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2020-07-011110.3389/fmicb.2020.01597546773Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their EcologyAdriana Corrales0Andrew W. Wilson1Gregory M. Mueller2Clark Ovrebo3Department of Biology, Faculty of Natural Sciences, Universidad del Rosario, Bogotá, ColombiaResearch and Conservation, Denver Botanic Gardens, Denver, CO, United StatesNegaunee Institute for Plant Conservation Science and Action, Chicago Botanic Garden, Glencoe, IL, United StatesDepartment of Biology, University of Central Oklahoma, Edmond, OK, United StatesSince 2013 there have been 22 new species of Laccaria described worldwide. Only three of these represent species from the neotropics. In Panama, Laccaria is abundant in monodominant Oreomunnea mexicana (Juglandaceae) forests based on sporocarps and environmental sequencing of roots. This study uses a combination of morphological and phylogenetic evidence to document up to seven species of Laccaria from these forests, one previously described, three described as new, and three requiring more data before being formally described. Molecular data used for phylogenetic analysis include the nuclear ribosomal ITS and 28S regions, along with TEF1 and RPB2. Laccaria stellata, has previously been reported from O. mexicana cloud forests of Panama. Laccaria dallingii sp. nov., L. nitrophila sp. nov., and L. fortunensis sp. nov. are described as new based on morphology and phylogenetic analysis of multiple collections. A taxon referred to as “PAN sp3” is resolved sister to L. stellata. Phylogenetic analysis also resolved two separate clades of Panamanian Laccaria as sister to L. roseoalbescens, a species previously described from Mexico. These three taxa are not described in this paper as there is too little material from which to make effective morphological descriptions even though their placement in phylogenetic analysis identify them as being unique. Ecologically, all described species except for L. fortunensis were amplified from O. mexicana ectomycorrhizal root tips. L. nitrophila was one of the most recovered species from the roots of O. mexicana in a previous study, and it has been shown to respond positively to long term nitrogen addition. Our results expand the knowledge of Laccaria diversity for Central America and highlight that at least some species of Laccaria are nitrophilic in neotropical Juglandaceae forests as well as in temperate forests.https://www.frontiersin.org/article/10.3389/fmicb.2020.01597/fullagaricomycetesCentral AmericaLaccariamycorrhizaneotropical fungisystematics
spellingShingle Adriana Corrales
Andrew W. Wilson
Gregory M. Mueller
Clark Ovrebo
Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
Frontiers in Microbiology
agaricomycetes
Central America
Laccaria
mycorrhiza
neotropical fungi
systematics
title Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
title_full Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
title_fullStr Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
title_full_unstemmed Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
title_short Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology
title_sort novel laccaria species from juglandaceae forest in panama with notes on their ecology
topic agaricomycetes
Central America
Laccaria
mycorrhiza
neotropical fungi
systematics
url https://www.frontiersin.org/article/10.3389/fmicb.2020.01597/full
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AT gregorymmueller novellaccariaspeciesfromjuglandaceaeforestinpanamawithnotesontheirecology
AT clarkovrebo novellaccariaspeciesfromjuglandaceaeforestinpanamawithnotesontheirecology