Global patterns in culturable soil yeast diversity

Summary: Yeasts, broadly defined as unicellular fungi, fulfill essential roles in soil ecosystems as decomposers and nutrition sources for fellow soil-dwellers. Broad-scale investigations of soil yeasts pose a methodological challenge as metagenomics are of limited use for identifying this group of...

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Main Authors: Himeshi Samarasinghe, Yi Lu, Renad Aljohani, Ahmad Al-Amad, Heather Yoell, Jianping Xu
Format: Article
Language:English
Published: Elsevier 2021-10-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S258900422101066X
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author Himeshi Samarasinghe
Yi Lu
Renad Aljohani
Ahmad Al-Amad
Heather Yoell
Jianping Xu
author_facet Himeshi Samarasinghe
Yi Lu
Renad Aljohani
Ahmad Al-Amad
Heather Yoell
Jianping Xu
author_sort Himeshi Samarasinghe
collection DOAJ
description Summary: Yeasts, broadly defined as unicellular fungi, fulfill essential roles in soil ecosystems as decomposers and nutrition sources for fellow soil-dwellers. Broad-scale investigations of soil yeasts pose a methodological challenge as metagenomics are of limited use for identifying this group of fungi. Here we characterize global soil yeast diversity using fungal DNA barcoding on 1473 yeasts cultured from 3826 soil samples obtained from nine countries in six continents. We identify mean annual precipitation and international air travel as two significant correlates with soil yeast community structure and composition worldwide. Evidence for anthropogenic influences on soil yeast communities, directly via travel and indirectly via altered rainfall patterns resulting from climate change, is concerning as we found common infectious yeasts frequently distributed in soil in several countries. Our discovery of 41 putative novel species highlights the continued need for culture-based studies to advance our knowledge of environmental yeast diversity.
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spelling doaj.art-eb9fc277ebad4824a2b4129532d2847b2022-12-21T19:43:11ZengElsevieriScience2589-00422021-10-012410103098Global patterns in culturable soil yeast diversityHimeshi Samarasinghe0Yi Lu1Renad Aljohani2Ahmad Al-Amad3Heather Yoell4Jianping Xu5Department of Biology, McMaster University, Hamilton, ON, CanadaDepartment of Biology, McMaster University, Hamilton, ON, CanadaDepartment of Biology, McMaster University, Hamilton, ON, Canada; Department of Infectious Diseases, South Kensington Campus, Imperial College London, London, UKDepartment of Biology, McMaster University, Hamilton, ON, CanadaDepartment of Biology, McMaster University, Hamilton, ON, CanadaDepartment of Biology, McMaster University, Hamilton, ON, Canada; Corresponding authorSummary: Yeasts, broadly defined as unicellular fungi, fulfill essential roles in soil ecosystems as decomposers and nutrition sources for fellow soil-dwellers. Broad-scale investigations of soil yeasts pose a methodological challenge as metagenomics are of limited use for identifying this group of fungi. Here we characterize global soil yeast diversity using fungal DNA barcoding on 1473 yeasts cultured from 3826 soil samples obtained from nine countries in six continents. We identify mean annual precipitation and international air travel as two significant correlates with soil yeast community structure and composition worldwide. Evidence for anthropogenic influences on soil yeast communities, directly via travel and indirectly via altered rainfall patterns resulting from climate change, is concerning as we found common infectious yeasts frequently distributed in soil in several countries. Our discovery of 41 putative novel species highlights the continued need for culture-based studies to advance our knowledge of environmental yeast diversity.http://www.sciencedirect.com/science/article/pii/S258900422101066Xgeomicrobiologysoil sciencemicrobiology
spellingShingle Himeshi Samarasinghe
Yi Lu
Renad Aljohani
Ahmad Al-Amad
Heather Yoell
Jianping Xu
Global patterns in culturable soil yeast diversity
iScience
geomicrobiology
soil science
microbiology
title Global patterns in culturable soil yeast diversity
title_full Global patterns in culturable soil yeast diversity
title_fullStr Global patterns in culturable soil yeast diversity
title_full_unstemmed Global patterns in culturable soil yeast diversity
title_short Global patterns in culturable soil yeast diversity
title_sort global patterns in culturable soil yeast diversity
topic geomicrobiology
soil science
microbiology
url http://www.sciencedirect.com/science/article/pii/S258900422101066X
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