Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta

Abstract Soil salinization is an increasingly serious problem and decreases crop yields in the Yellow River Delta (YRD), but its effects on bacterial community and diversity at the phylum level are not well known. We used high-throughput sequencing of soil bacterial 16S rRNA to identify soil bacteri...

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Autores principales:	Chao Yang, Kangjia Li, Dantong Lv, Shenyi Jiang, Junqi Sun, Hao Lin, Juan Sun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a7d74da100c2411e84ce2d5be9f9ba25
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spelling	oai:doaj.org-article:a7d74da100c2411e84ce2d5be9f9ba252021-12-02T17:39:49ZInconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta10.1038/s41598-021-92502-72045-2322https://doaj.org/article/a7d74da100c2411e84ce2d5be9f9ba252021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92502-7https://doaj.org/toc/2045-2322Abstract Soil salinization is an increasingly serious problem and decreases crop yields in the Yellow River Delta (YRD), but its effects on bacterial community and diversity at the phylum level are not well known. We used high-throughput sequencing of soil bacterial 16S rRNA to identify soil bacterial communities and diversity across a gradient of soil salinity (electrical conductivity), namely, S1: low salinity level (1.78 ds/m), S2: medium salinity level (3.16 ds/m), S3: high salinity level (17.26 ds/m), S4: extreme salinity level (34.41 ds/m), and a non-salted site as the control (CK, 0.92 ds/m). Our results indicated the significantly higher values of soil C/N ratio in S2, S3, and S4 compared with that in CK. Significantly lower values of the Shannon and Chao 1 indexes were observed in S4 compared with the CK (p < 0.05). High salinity decreased the relative abundance of Actinobacteria and Acidobacteria, but increased that of Gemmatimonadetes and Bacteroidetes. Additionally, the Shannon diversity of Bacteroidetes increased by 15.5% in S4 compared with that in the CK. Our results indicate that soil salt is a main factor regulating bacterial phyla diversity and community in the extremely saline-alkaline soils of YRD. The high abundance and diversity of Bacteroidetes can be used for saline-alkali land restoration.Chao YangKangjia LiDantong LvShenyi JiangJunqi SunHao LinJuan SunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chao Yang Kangjia Li Dantong Lv Shenyi Jiang Junqi Sun Hao Lin Juan Sun Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
description	Abstract Soil salinization is an increasingly serious problem and decreases crop yields in the Yellow River Delta (YRD), but its effects on bacterial community and diversity at the phylum level are not well known. We used high-throughput sequencing of soil bacterial 16S rRNA to identify soil bacterial communities and diversity across a gradient of soil salinity (electrical conductivity), namely, S1: low salinity level (1.78 ds/m), S2: medium salinity level (3.16 ds/m), S3: high salinity level (17.26 ds/m), S4: extreme salinity level (34.41 ds/m), and a non-salted site as the control (CK, 0.92 ds/m). Our results indicated the significantly higher values of soil C/N ratio in S2, S3, and S4 compared with that in CK. Significantly lower values of the Shannon and Chao 1 indexes were observed in S4 compared with the CK (p < 0.05). High salinity decreased the relative abundance of Actinobacteria and Acidobacteria, but increased that of Gemmatimonadetes and Bacteroidetes. Additionally, the Shannon diversity of Bacteroidetes increased by 15.5% in S4 compared with that in the CK. Our results indicate that soil salt is a main factor regulating bacterial phyla diversity and community in the extremely saline-alkaline soils of YRD. The high abundance and diversity of Bacteroidetes can be used for saline-alkali land restoration.
format	article
author	Chao Yang Kangjia Li Dantong Lv Shenyi Jiang Junqi Sun Hao Lin Juan Sun
author_facet	Chao Yang Kangjia Li Dantong Lv Shenyi Jiang Junqi Sun Hao Lin Juan Sun
author_sort	Chao Yang
title	Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
title_short	Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
title_full	Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
title_fullStr	Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
title_full_unstemmed	Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta
title_sort	inconsistent response of bacterial phyla diversity and abundance to soil salinity in a chinese delta
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a7d74da100c2411e84ce2d5be9f9ba25
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Inconsistent response of bacterial phyla diversity and abundance to soil salinity in a Chinese delta

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