Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie

Abstract Background In the United States and Canada, ca. one-half of native orchid species are now threatened with extinction. A number of these species are restricted to tallgrass prairies of central North America, such as the Eastern Prairie Fringed Orchid, Platanthera leucophaea (Nutt.) Lindl.—a...

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Main Authors: Hana L. Thixton, Elizabeth J. Esselman, Laura L. Corey, Lawrence W. Zettler
Format: Article
Language:English
Published: SpringerOpen 2020-04-01
Series:Botanical Studies
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40529-020-00289-z
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author Hana L. Thixton
Elizabeth J. Esselman
Laura L. Corey
Lawrence W. Zettler
author_facet Hana L. Thixton
Elizabeth J. Esselman
Laura L. Corey
Lawrence W. Zettler
author_sort Hana L. Thixton
collection DOAJ
description Abstract Background In the United States and Canada, ca. one-half of native orchid species are now threatened with extinction. A number of these species are restricted to tallgrass prairies of central North America, such as the Eastern Prairie Fringed Orchid, Platanthera leucophaea (Nutt.) Lindl.—a U.S. Federally threatened species. Results We provide new records of fungi recovered from roots of P. leucophaea and five other orchid species inhabiting prairie sites in Illinois and neighboring states during a 10-year period (2008–2017). A total of 39 fungal endophytes were isolated from Cypripedium candidum (1), Platanthera lacera (1), P. leucophaea (32), P. peramoena (3), Spiranthes lacera (1), and S. magnicamporum (1), 31 (79%) of which were assignable to Ceratobasidium and the remainder to Tulasnella. These fungi were acquired from 16 different sites, 13 of which are new records including two new state records (Iowa, Wisconsin). Molecular analysis revealed that some Ceratobasidium strains were virtually identical despite being geographically isolated by > 300 km. Conclusions This study, encompassing a decade of work, confirms that Platanthera leucophaea is a mycorrhizal specialist with heavy reliance on Ceratobasidium with the tallgrass prairie ecosystem of North America. Our isolation of Ceratobasidium from P. leucophaea spanning additional sites suggests that the association is widespread. Such information should provide conservationists and land managers with more confidence in developing protocols that facilitate the long-term conservation of this prairie orchid.
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spelling doaj.art-a338a01cb9ee4bab8fd5a59f2639c6a32022-12-21T19:42:41ZengSpringerOpenBotanical Studies1999-31102020-04-016111810.1186/s40529-020-00289-zFurther evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairieHana L. Thixton0Elizabeth J. Esselman1Laura L. Corey2Lawrence W. Zettler3Department of Biology, Southern Illinois University EdwardsvilleDepartment of Biology, Southern Illinois University EdwardsvilleDepartment of Biology, Illinois CollegeDepartment of Biology, Illinois CollegeAbstract Background In the United States and Canada, ca. one-half of native orchid species are now threatened with extinction. A number of these species are restricted to tallgrass prairies of central North America, such as the Eastern Prairie Fringed Orchid, Platanthera leucophaea (Nutt.) Lindl.—a U.S. Federally threatened species. Results We provide new records of fungi recovered from roots of P. leucophaea and five other orchid species inhabiting prairie sites in Illinois and neighboring states during a 10-year period (2008–2017). A total of 39 fungal endophytes were isolated from Cypripedium candidum (1), Platanthera lacera (1), P. leucophaea (32), P. peramoena (3), Spiranthes lacera (1), and S. magnicamporum (1), 31 (79%) of which were assignable to Ceratobasidium and the remainder to Tulasnella. These fungi were acquired from 16 different sites, 13 of which are new records including two new state records (Iowa, Wisconsin). Molecular analysis revealed that some Ceratobasidium strains were virtually identical despite being geographically isolated by > 300 km. Conclusions This study, encompassing a decade of work, confirms that Platanthera leucophaea is a mycorrhizal specialist with heavy reliance on Ceratobasidium with the tallgrass prairie ecosystem of North America. Our isolation of Ceratobasidium from P. leucophaea spanning additional sites suggests that the association is widespread. Such information should provide conservationists and land managers with more confidence in developing protocols that facilitate the long-term conservation of this prairie orchid.http://link.springer.com/article/10.1186/s40529-020-00289-zSpecificityConservationEndophytesMycorrhizal fungiTulasnella
spellingShingle Hana L. Thixton
Elizabeth J. Esselman
Laura L. Corey
Lawrence W. Zettler
Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
Botanical Studies
Specificity
Conservation
Endophytes
Mycorrhizal fungi
Tulasnella
title Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
title_full Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
title_fullStr Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
title_full_unstemmed Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
title_short Further evidence of Ceratobasidium D.P. Rogers (Basidiomycota) serving as the ubiquitous fungal associate of Platanthera leucophaea (Orchidaceae) in the North American tallgrass prairie
title_sort further evidence of ceratobasidium d p rogers basidiomycota serving as the ubiquitous fungal associate of platanthera leucophaea orchidaceae in the north american tallgrass prairie
topic Specificity
Conservation
Endophytes
Mycorrhizal fungi
Tulasnella
url http://link.springer.com/article/10.1186/s40529-020-00289-z
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