Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands

ABSTRACT Biogeographic patterns and drivers of soil microbial diversity have been extensively studied in the past few decades. However, most research has focused on the topsoil, while the subsoil is assumed to have microbial diversity patterns similar to those of the topsoil. Here we compared patter...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Nana Liu, Huifeng Hu, Wenhong Ma, Ye Deng, Yuqing Liu, Baihui Hao, Xinying Zhang, Dimitar Dimitrov, Xiaojuan Feng, Zhiheng Wang
Formato:	article
Lenguaje:	EN
Publicado:	American Society for Microbiology 2019
Materias:	biogeographic patterns topsoil subsoil bacteria archaea historical temperature anomaly Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/02b90f9ea41648cbbe7caa827792bb56
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:02b90f9ea41648cbbe7caa827792bb56
record_format	dspace
spelling	oai:doaj.org-article:02b90f9ea41648cbbe7caa827792bb562021-12-02T19:46:17ZContrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands10.1128/mSystems.00566-192379-5077https://doaj.org/article/02b90f9ea41648cbbe7caa827792bb562019-10-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/mSystems.00566-19https://doaj.org/toc/2379-5077ABSTRACT Biogeographic patterns and drivers of soil microbial diversity have been extensively studied in the past few decades. However, most research has focused on the topsoil, while the subsoil is assumed to have microbial diversity patterns similar to those of the topsoil. Here we compared patterns and drivers of microbial alpha and beta diversity in and between topsoils (0 to 10 cm) and subsoils (30 to 50 cm) of temperate grasslands in Inner Mongolia of China, covering an ∼1,500-km transect along an aridity gradient. Counter to the conventional assumption, we find contrasting biogeographic patterns of diversity and influencing factors for different bacterial and archaeal groups and between depths. While bacterial diversity remains constant or increases with increasing aridity in topsoil and decreases in subsoil, archaeal diversity decreases in topsoil and remains constant in subsoil. Microbial diversity in the topsoil is most strongly influenced by aboveground vegetation and contemporary climate but is most strongly influenced by the factor historical temperature anomaly since the Last Glacial Maximum (LGM) and by soil pH in the subsoil. Moreover, the biogeographic patterns of topsoil-subsoil community dissimilarities vary for different microbial groups and are overall most strongly influenced by soil fertility differences between depths for bacteria and by contemporary climate for archaea. These findings suggest that diversity patterns observed in the topsoil may not be readily applied to the subsoil horizons. For the subsoil in particular, historical climate plays a vital role in the spatial variation of bacterial diversity. Overall, our study provides novel information for understanding and predicting soil microbial diversity patterns at depth. IMPORTANCE Exploring the biogeographic patterns of soil microbial diversity is critical for understanding mechanisms underlying the response of soil processes to climate change. Using top- and subsoils from an ∼1,500-km temperate grassland transect, we find divergent patterns of microbial diversity and its determinants in the topsoil versus the subsoil. Furthermore, we find important and direct legacy effects of historical climate change on the microbial diversity of subsoil yet indirect effects on topsoil. Our findings challenge the conventional assumption of similar geographic patterns of soil microbial diversity along soil profiles and help to improve our understanding of how soil microbial communities may respond to future climate change in different regions with various climate histories.Nana LiuHuifeng HuWenhong MaYe DengYuqing LiuBaihui HaoXinying ZhangDimitar DimitrovXiaojuan FengZhiheng WangAmerican Society for Microbiologyarticlebiogeographic patternstopsoilsubsoilbacteriaarchaeahistorical temperature anomalyMicrobiologyQR1-502ENmSystems, Vol 4, Iss 5 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	biogeographic patterns topsoil subsoil bacteria archaea historical temperature anomaly Microbiology QR1-502
spellingShingle	biogeographic patterns topsoil subsoil bacteria archaea historical temperature anomaly Microbiology QR1-502 Nana Liu Huifeng Hu Wenhong Ma Ye Deng Yuqing Liu Baihui Hao Xinying Zhang Dimitar Dimitrov Xiaojuan Feng Zhiheng Wang Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
description	ABSTRACT Biogeographic patterns and drivers of soil microbial diversity have been extensively studied in the past few decades. However, most research has focused on the topsoil, while the subsoil is assumed to have microbial diversity patterns similar to those of the topsoil. Here we compared patterns and drivers of microbial alpha and beta diversity in and between topsoils (0 to 10 cm) and subsoils (30 to 50 cm) of temperate grasslands in Inner Mongolia of China, covering an ∼1,500-km transect along an aridity gradient. Counter to the conventional assumption, we find contrasting biogeographic patterns of diversity and influencing factors for different bacterial and archaeal groups and between depths. While bacterial diversity remains constant or increases with increasing aridity in topsoil and decreases in subsoil, archaeal diversity decreases in topsoil and remains constant in subsoil. Microbial diversity in the topsoil is most strongly influenced by aboveground vegetation and contemporary climate but is most strongly influenced by the factor historical temperature anomaly since the Last Glacial Maximum (LGM) and by soil pH in the subsoil. Moreover, the biogeographic patterns of topsoil-subsoil community dissimilarities vary for different microbial groups and are overall most strongly influenced by soil fertility differences between depths for bacteria and by contemporary climate for archaea. These findings suggest that diversity patterns observed in the topsoil may not be readily applied to the subsoil horizons. For the subsoil in particular, historical climate plays a vital role in the spatial variation of bacterial diversity. Overall, our study provides novel information for understanding and predicting soil microbial diversity patterns at depth. IMPORTANCE Exploring the biogeographic patterns of soil microbial diversity is critical for understanding mechanisms underlying the response of soil processes to climate change. Using top- and subsoils from an ∼1,500-km temperate grassland transect, we find divergent patterns of microbial diversity and its determinants in the topsoil versus the subsoil. Furthermore, we find important and direct legacy effects of historical climate change on the microbial diversity of subsoil yet indirect effects on topsoil. Our findings challenge the conventional assumption of similar geographic patterns of soil microbial diversity along soil profiles and help to improve our understanding of how soil microbial communities may respond to future climate change in different regions with various climate histories.
format	article
author	Nana Liu Huifeng Hu Wenhong Ma Ye Deng Yuqing Liu Baihui Hao Xinying Zhang Dimitar Dimitrov Xiaojuan Feng Zhiheng Wang
author_facet	Nana Liu Huifeng Hu Wenhong Ma Ye Deng Yuqing Liu Baihui Hao Xinying Zhang Dimitar Dimitrov Xiaojuan Feng Zhiheng Wang
author_sort	Nana Liu
title	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
title_short	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
title_full	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
title_fullStr	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
title_full_unstemmed	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
title_sort	contrasting biogeographic patterns of bacterial and archaeal diversity in the top- and subsoils of temperate grasslands
publisher	American Society for Microbiology
publishDate	2019
url	https://doaj.org/article/02b90f9ea41648cbbe7caa827792bb56
work_keys_str_mv	AT nanaliu contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT huifenghu contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT wenhongma contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT yedeng contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT yuqingliu contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT baihuihao contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT xinyingzhang contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT dimitardimitrov contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT xiaojuanfeng contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands AT zhihengwang contrastingbiogeographicpatternsofbacterialandarchaealdiversityinthetopandsubsoilsoftemperategrasslands
_version_	1718376003297869824

Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands

Ejemplares similares