Responses of denitrifying bacterial communities to short-term waterlogging of soils

Abstract Agricultural soil is often subjected to waterlogging after heavy rainfalls, resulting in sharp and explosive increases in the emission of nitrous oxide (N2O), an important greenhouse gas primarily released from agricultural soil ecosystems. Previous studies on waterlogged soil examined the...

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Autores principales: Yong Wang, Yoshitaka Uchida, Yumi Shimomura, Hiroko Akiyama, Masahito Hayatsu
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Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/90b7413d215d4c198fcec0b96014a043
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spelling oai:doaj.org-article:90b7413d215d4c198fcec0b96014a0432021-12-02T12:32:53ZResponses of denitrifying bacterial communities to short-term waterlogging of soils10.1038/s41598-017-00953-82045-2322https://doaj.org/article/90b7413d215d4c198fcec0b96014a0432017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00953-8https://doaj.org/toc/2045-2322Abstract Agricultural soil is often subjected to waterlogging after heavy rainfalls, resulting in sharp and explosive increases in the emission of nitrous oxide (N2O), an important greenhouse gas primarily released from agricultural soil ecosystems. Previous studies on waterlogged soil examined the abundance of denitrifiers but not the composition of denitrifier communities in soil. Also, the PCR primers used in those studies could only detect partial groups of denitrifiers. Here, we performed pyrosequencing analyses with the aid of recently developed PCR primers exhibiting high coverage for three denitrification genes, nirK, nirS, and nosZ to examine the effect of short-term waterlogging on denitrifier communities in soil. We found that microbial communities harboring denitrification genes in the top 5 cm of soil distributed according to soil depth, water-soluble carbon, and nitrate nitrogen. Short-term waterlogging scarcely affected abundance, richness, or the alpha-diversities of microbial communities harboring nirK, nirS, and nosZ genes, but significantly affected their composition, particularly in microbial communities at soil depths of 0 to 1 cm. Our results indicated that the composition of denitrifying microbial communities but not the abundance of denitrifiers in soil was responsive to short-term waterlogging of an agricultural soil ecosystem.Yong WangYoshitaka UchidaYumi ShimomuraHiroko AkiyamaMasahito HayatsuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Yong Wang
Yoshitaka Uchida
Yumi Shimomura
Hiroko Akiyama
Masahito Hayatsu
Responses of denitrifying bacterial communities to short-term waterlogging of soils
description Abstract Agricultural soil is often subjected to waterlogging after heavy rainfalls, resulting in sharp and explosive increases in the emission of nitrous oxide (N2O), an important greenhouse gas primarily released from agricultural soil ecosystems. Previous studies on waterlogged soil examined the abundance of denitrifiers but not the composition of denitrifier communities in soil. Also, the PCR primers used in those studies could only detect partial groups of denitrifiers. Here, we performed pyrosequencing analyses with the aid of recently developed PCR primers exhibiting high coverage for three denitrification genes, nirK, nirS, and nosZ to examine the effect of short-term waterlogging on denitrifier communities in soil. We found that microbial communities harboring denitrification genes in the top 5 cm of soil distributed according to soil depth, water-soluble carbon, and nitrate nitrogen. Short-term waterlogging scarcely affected abundance, richness, or the alpha-diversities of microbial communities harboring nirK, nirS, and nosZ genes, but significantly affected their composition, particularly in microbial communities at soil depths of 0 to 1 cm. Our results indicated that the composition of denitrifying microbial communities but not the abundance of denitrifiers in soil was responsive to short-term waterlogging of an agricultural soil ecosystem.
format article
author Yong Wang
Yoshitaka Uchida
Yumi Shimomura
Hiroko Akiyama
Masahito Hayatsu
author_facet Yong Wang
Yoshitaka Uchida
Yumi Shimomura
Hiroko Akiyama
Masahito Hayatsu
author_sort Yong Wang
title Responses of denitrifying bacterial communities to short-term waterlogging of soils
title_short Responses of denitrifying bacterial communities to short-term waterlogging of soils
title_full Responses of denitrifying bacterial communities to short-term waterlogging of soils
title_fullStr Responses of denitrifying bacterial communities to short-term waterlogging of soils
title_full_unstemmed Responses of denitrifying bacterial communities to short-term waterlogging of soils
title_sort responses of denitrifying bacterial communities to short-term waterlogging of soils
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/90b7413d215d4c198fcec0b96014a043
work_keys_str_mv AT yongwang responsesofdenitrifyingbacterialcommunitiestoshorttermwaterloggingofsoils
AT yoshitakauchida responsesofdenitrifyingbacterialcommunitiestoshorttermwaterloggingofsoils
AT yumishimomura responsesofdenitrifyingbacterialcommunitiestoshorttermwaterloggingofsoils
AT hirokoakiyama responsesofdenitrifyingbacterialcommunitiestoshorttermwaterloggingofsoils
AT masahitohayatsu responsesofdenitrifyingbacterialcommunitiestoshorttermwaterloggingofsoils
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