Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch

ABSTRACT Cold waterlogged paddy field is a type of low-yield paddy soil, and opening a drainage ditch has been suggested to improve waterlogged paddy soil and to increase the rice yield. However, little has been done on the role of a drainage ditch in ameliorating waterlogged soil. In the present st...

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Autores principales:	Fang,Yu, Wang,Fei, Chen,Jichen, Lin,Cheng, Lin,Xinjian
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	Cold waterlogged paddy field drainage ditch microbial community structure Oryza sativa real-time PCR redox potential.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100011
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spelling	oai:scielo:S0718-583920170001000112017-11-09Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditchFang,YuWang,FeiChen,JichenLin,ChengLin,Xinjian Cold waterlogged paddy field drainage ditch microbial community structure Oryza sativa real-time PCR redox potential. ABSTRACT Cold waterlogged paddy field is a type of low-yield paddy soil, and opening a drainage ditch has been suggested to improve waterlogged paddy soil and to increase the rice yield. However, little has been done on the role of a drainage ditch in ameliorating waterlogged soil. In the present study, rice (Oryza sativa L.) yield, soil physicochemical properties, microbial abundances and community structures in the surface soil of a cold waterlogged paddy field, which has three treatments with different distances from a drainage ditch including 5, 15 and 25 m were investigated. The results showed that opening a drainage ditch had a significant effect on the rice yield and soil physicochemical properties. Sampling sites near the drainage ditch such as 5 m-site had higher yield and soil nutrients, however, 25 m-site had lower values. Bacterial 16S rRNA gene did not exhibit a regular pattern but fungal abundance decreased sharply with increasing distance from the drainage ditch. The most abundant bacterial phyla across all soil samples were Proteobacteria, Acidobacteria, Planctomycetes and Chloroflexi. Abundant fungal phyla were Ascomycota, Zygomycota and Basidiomycota. Three treatments had similar microbial community compositions but with different relative abundances. The Bray-Curtis distance demonstrated that microbial community structures were divided into two major groups, samples of 5 m- and 15 m-site clustered into one group and samples of 25 m-site was another group. Moreover, redundancy analysis revealed that soil redox potential and total reducing substances were significant factors in shaping microbial community structures. The abundant aerobic bacteria were observed at the 5 m- and 15 m-site, in contrast, abundant anaerobic bacteria were observed at the 25 m-site. In conclusion, opening a drainage ditch in cold waterlogged paddy fields affects rice yield, soil nutrients, microbial abundances and community structures.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.1 20172017-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100011en10.4067/S0718-58392017000100011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cold waterlogged paddy field drainage ditch microbial community structure Oryza sativa real-time PCR redox potential.
spellingShingle	Cold waterlogged paddy field drainage ditch microbial community structure Oryza sativa real-time PCR redox potential. Fang,Yu Wang,Fei Chen,Jichen Lin,Cheng Lin,Xinjian Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
description	ABSTRACT Cold waterlogged paddy field is a type of low-yield paddy soil, and opening a drainage ditch has been suggested to improve waterlogged paddy soil and to increase the rice yield. However, little has been done on the role of a drainage ditch in ameliorating waterlogged soil. In the present study, rice (Oryza sativa L.) yield, soil physicochemical properties, microbial abundances and community structures in the surface soil of a cold waterlogged paddy field, which has three treatments with different distances from a drainage ditch including 5, 15 and 25 m were investigated. The results showed that opening a drainage ditch had a significant effect on the rice yield and soil physicochemical properties. Sampling sites near the drainage ditch such as 5 m-site had higher yield and soil nutrients, however, 25 m-site had lower values. Bacterial 16S rRNA gene did not exhibit a regular pattern but fungal abundance decreased sharply with increasing distance from the drainage ditch. The most abundant bacterial phyla across all soil samples were Proteobacteria, Acidobacteria, Planctomycetes and Chloroflexi. Abundant fungal phyla were Ascomycota, Zygomycota and Basidiomycota. Three treatments had similar microbial community compositions but with different relative abundances. The Bray-Curtis distance demonstrated that microbial community structures were divided into two major groups, samples of 5 m- and 15 m-site clustered into one group and samples of 25 m-site was another group. Moreover, redundancy analysis revealed that soil redox potential and total reducing substances were significant factors in shaping microbial community structures. The abundant aerobic bacteria were observed at the 5 m- and 15 m-site, in contrast, abundant anaerobic bacteria were observed at the 25 m-site. In conclusion, opening a drainage ditch in cold waterlogged paddy fields affects rice yield, soil nutrients, microbial abundances and community structures.
author	Fang,Yu Wang,Fei Chen,Jichen Lin,Cheng Lin,Xinjian
author_facet	Fang,Yu Wang,Fei Chen,Jichen Lin,Cheng Lin,Xinjian
author_sort	Fang,Yu
title	Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
title_short	Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
title_full	Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
title_fullStr	Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
title_full_unstemmed	Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
title_sort	microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000100011
work_keys_str_mv	AT fangyu microbialresponsesinacoldwaterloggedpaddyfieldtodifferentdistancesfromadrainageditch AT wangfei microbialresponsesinacoldwaterloggedpaddyfieldtodifferentdistancesfromadrainageditch AT chenjichen microbialresponsesinacoldwaterloggedpaddyfieldtodifferentdistancesfromadrainageditch AT lincheng microbialresponsesinacoldwaterloggedpaddyfieldtodifferentdistancesfromadrainageditch AT linxinjian microbialresponsesinacoldwaterloggedpaddyfieldtodifferentdistancesfromadrainageditch
_version_	1714205367223713792

Microbial responses in a cold waterlogged paddy field to different distances from a drainage ditch

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