Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling

Abstract Understanding how soil ecosystem responds to transgenic Bacillus thuringiensis (Bt) rice is necessary for environmental risk assessment. While the influences of short-term cultivation of Bt rice on soil properties have been reported previously, little is known about the long-term effects of...

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Autores principales:	Lee Zhaolei, Bu Naishun, Cui Jun, Chen Xueping, Xiao Manqiu, Wang Feng, Song Zhiping, Fang Changming
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5b174dd6ac524f7eb3a965d97b5c1131
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spelling	oai:doaj.org-article:5b174dd6ac524f7eb3a965d97b5c11312021-12-02T12:32:18ZEffects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling10.1038/s41598-017-04997-82045-2322https://doaj.org/article/5b174dd6ac524f7eb3a965d97b5c11312017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04997-8https://doaj.org/toc/2045-2322Abstract Understanding how soil ecosystem responds to transgenic Bacillus thuringiensis (Bt) rice is necessary for environmental risk assessment. While the influences of short-term cultivation of Bt rice on soil properties have been reported previously, little is known about the long-term effects of Bt rice on soil ecosystems. In this study, soil samples were taken from a long-term rice cultivation site in Fujian Province, China, where transgenic Bt rice (Kefeng-6) and its non-Bt parent breed (Minghui-86) had been continuously cultivated for 8 years. Soil Bt protein concentration and a total of 16 variables were analyzed to assess potential risks of soil health under Bt rice cultivation. The results revealed that soil Bt protein is unlikely to accumulate after Bt rice cultivated in the field, and no consistently significant changes were observed in soil enzymatic activities (catalase, dehydrogenase, acid phosphatase, and urease), microbial biomass (microbial carbon and nitrogen), total organic carbon, decomposition (soil respiration, Q 10, and qCO2), soil nitrogen and phosphorus contents. Due to a local tradition that aboveground biomass was removed after harvest, the increased net primary productivity by Bt rice cultivation did not significantly change soil C cycling. Results of this study suggested that on the aspects of soil microbial functioning and C cycling, long-term cultivation of Bt rice is unlikely to result in significant effects on soil health.Lee ZhaoleiBu NaishunCui JunChen XuepingXiao ManqiuWang FengSong ZhipingFang ChangmingNature 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 Lee Zhaolei Bu Naishun Cui Jun Chen Xueping Xiao Manqiu Wang Feng Song Zhiping Fang Changming Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
description	Abstract Understanding how soil ecosystem responds to transgenic Bacillus thuringiensis (Bt) rice is necessary for environmental risk assessment. While the influences of short-term cultivation of Bt rice on soil properties have been reported previously, little is known about the long-term effects of Bt rice on soil ecosystems. In this study, soil samples were taken from a long-term rice cultivation site in Fujian Province, China, where transgenic Bt rice (Kefeng-6) and its non-Bt parent breed (Minghui-86) had been continuously cultivated for 8 years. Soil Bt protein concentration and a total of 16 variables were analyzed to assess potential risks of soil health under Bt rice cultivation. The results revealed that soil Bt protein is unlikely to accumulate after Bt rice cultivated in the field, and no consistently significant changes were observed in soil enzymatic activities (catalase, dehydrogenase, acid phosphatase, and urease), microbial biomass (microbial carbon and nitrogen), total organic carbon, decomposition (soil respiration, Q 10, and qCO2), soil nitrogen and phosphorus contents. Due to a local tradition that aboveground biomass was removed after harvest, the increased net primary productivity by Bt rice cultivation did not significantly change soil C cycling. Results of this study suggested that on the aspects of soil microbial functioning and C cycling, long-term cultivation of Bt rice is unlikely to result in significant effects on soil health.
format	article
author	Lee Zhaolei Bu Naishun Cui Jun Chen Xueping Xiao Manqiu Wang Feng Song Zhiping Fang Changming
author_facet	Lee Zhaolei Bu Naishun Cui Jun Chen Xueping Xiao Manqiu Wang Feng Song Zhiping Fang Changming
author_sort	Lee Zhaolei
title	Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
title_short	Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
title_full	Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
title_fullStr	Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
title_full_unstemmed	Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling
title_sort	effects of long-term cultivation of transgenic bt rice (kefeng-6) on soil microbial functioning and c cycling
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5b174dd6ac524f7eb3a965d97b5c1131
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Effects of long-term cultivation of transgenic Bt rice (Kefeng-6) on soil microbial functioning and C cycling

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