土地利用变化对菌根真菌的影响及其与啮齿动物的关系:来自墨西哥温带森林的见解。

IF 3.8 2区 生物学 Q2 MYCOLOGY
Margarita Gil-Fernández, Alexandra J R Carthey, Eduardo Mendoza, Oscar Godínez-Gómez, M Cristina MacSwiney G, Arnulfo Blanco-García, Christian A Delfín-Alfonso, Johannes J Le Roux
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引用次数: 0

摘要

生态系统功能受生物多样性、生态相互作用和非生物条件的影响。当涉及植被覆盖和结构的变化(即土地利用变化)时,人类与生态系统的相互作用可导致生态系统功能的重大变化。本研究探讨了土地利用变化对温带森林土壤和啮齿动物粪便中丛枝菌根真菌(AMF)和外生菌根真菌(EMF)多样性的影响。我们在墨西哥米却肯州的五个成对地点(即受干扰与未受干扰)收集了土壤和啮齿动物粪便样本。利用部分内转录区1 (ITS)序列的DNA条形码技术鉴定了112种假定的菌根真菌。我们发现,与受干扰的土壤样本相比,未受干扰的土壤样本中EMF的丰富度更高,而来自受干扰地点的啮齿动物粪便样本中的AMF多样性高于未受干扰的土壤样本。粪便样本的AMF(75%)和EMF(100%)发生率均较高。我们发现AMF和EMF的多样性存在显著差异,这取决于与它们相关的啮齿动物物种。我们还发现,雨季粪便中EMF的多样性高于旱季。我们还首次报道了Sigmodon hispidus与许多AMF和EMF物种之间的关联。总的来说,我们的研究强调了啮齿动物作为菌根真菌的重要传播媒介的作用,特别是对于EMF来说,这可能是在受干扰的森林中建立菌根真菌孢子库所必需的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The impact of land use change on mycorrhizal fungi and their associations with rodents: insights from a temperate forest in Mexico.

The impact of land use change on mycorrhizal fungi and their associations with rodents: insights from a temperate forest in Mexico.

The impact of land use change on mycorrhizal fungi and their associations with rodents: insights from a temperate forest in Mexico.

The impact of land use change on mycorrhizal fungi and their associations with rodents: insights from a temperate forest in Mexico.

Ecosystem functioning is influenced by biological diversity, ecological interactions, and abiotic conditions. Human interactions with ecosystems can cause major changes in how they function when involving changes in the vegetation cover and structure (i.e., land use change). This study examines how land use change affects the diversity of arbuscular mycorrhizal fungi (AMF) and ectomycorrhizal fungi (EMF) in soil and rodent scats in temperate forest sites. We collected soil and rodent scat samples at five paired sites (i.e., disturbed vs. undisturbed) in Michoacan, Mexico. We identified 112 putative mycorrhizal fungi species using DNA barcoding based on partial internal transcribed region 1 (ITS) sequences. We found a higher richness of EMF in undisturbed soil samples compared to disturbed soil samples and a higher AMF diversity in rodent scat samples from disturbed than undisturbed sites. Scat samples had a high incidence of both AMF (75%) and EMF (100%). We found significant differences in the diversity of both AMF and EMF depending on the rodent species associated with them. We also found a higher diversity of EMF in scats in the wet season than in the dry season. We also report, for the first time, associations between Sigmodon hispidus and numerous AMF and EMF species. Overall, our study highlights the role of rodents as important dispersal vectors of mycorrhizal fungi, particularly for EMF that could be essential to build up mycorrhizal fungi spore banks in disturbed forests.

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来源期刊
Mycorrhiza
Mycorrhiza 生物-真菌学
CiteScore
8.20
自引率
2.60%
发文量
40
审稿时长
6-12 weeks
期刊介绍: Mycorrhiza is an international journal devoted to research into mycorrhizas - the widest symbioses in nature, involving plants and a range of soil fungi world-wide. The scope of Mycorrhiza covers all aspects of research into mycorrhizas, including molecular biology of the plants and fungi, fungal systematics, development and structure of mycorrhizas, and effects on plant physiology, productivity, reproduction and disease resistance. The scope also includes interactions between mycorrhizal fungi and other soil organisms and effects of mycorrhizas on plant biodiversity and ecosystem structure. Mycorrhiza contains original papers, short notes and review articles, along with commentaries and news items. It forms a platform for new concepts and discussions, and is a basis for a truly international forum of mycorrhizologists from all over the world.
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