Ceratobasidium D.P. Rogers(担子菌科)在北美高草草原上作为Platanthera leucophaea(兰科)普遍存在的真菌伙伴的进一步证据。

IF 4.1 3区 生物学 Q1 PLANT SCIENCES
Hana L Thixton, Elizabeth J Esselman, Laura L Corey, Lawrence W Zettler
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引用次数: 8

摘要

背景:在美国和加拿大,大约一半的本土兰花物种现在面临灭绝的威胁。这些物种中的许多只局限于北美中部的高草草原,如东部草原穗兰,Platanthera leucophaea (Nutt.)。采用。-美国联邦濒危物种。结果:我们提供了2008-2017年10年间(2008-2017年)生活在伊利诺伊州及邻近州草原上的白带兰(P. leucophaea)和其他5种兰花根中真菌的新记录。从candidum(1)、Platanthera lacera(1)、P. leucophaea(32)、P. peramoena(3)、Spiranthes lacera(1)和S. magnicamporum(1)中共分离到真菌内生菌39株,其中31株(79%)属于Ceratobasidium,其余为Tulasnella。这些真菌来自16个不同的地点,其中13个是新记录,包括两个新的州记录(爱荷华州,威斯康星州)。分子分析表明,尽管在地理上相距超过300公里,但有些角鼻托孢子虫菌株几乎相同。结论:这项研究包含了十年的工作,证实了Platanthera leucophaea是北美高草草原生态系统中严重依赖Ceratobasidium的菌根专家。我们从P. leucophaea中分离出的Ceratobasidium跨越了更多的位点,这表明这种联系是广泛存在的。这些信息应该为保护主义者和土地管理者提供更多的信心,以制定有利于这种草原兰花长期保护的协议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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

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

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

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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来源期刊
Botanical Studies
Botanical Studies PLANT SCIENCES-
CiteScore
4.80
自引率
2.90%
发文量
32
审稿时长
13 weeks
期刊介绍: Botanical Studies is an open access journal that encompasses all aspects of botany, including but not limited to taxonomy, morphology, development, genetics, evolution, reproduction, systematics, and biodiversity of all plant groups, algae, and fungi. The journal is affiliated with the Institute of Plant and Microbial Biology, Academia Sinica, Taiwan.
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