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논문 기본 정보

자료유형
학술저널
저자정보
Haiming Tang (Hunan Soil and Fertilizer Institute China) Chao Li (Hunan Soil and Fertilizer Institute P.R. China) Kaikai Cheng (Hunan Soil and Fertilizer Institute China) Lihong Shi (Hunan Soil and Fertilizer Institute P.R. China) Li Wen (Hunan Soil and Fertilizer Institute China) Xiaoping Xiao (Hunan Soil and Fertilizer InstituteP.R. China) Yilan Xu (Hunan Biological and Electromechanical Polytechnic) Weiyan Li (Hunan Soil and Fertilizer Institute China) Ke Wang (Hunan Soil and Fertilizer Institute P.R. China)
저널정보
한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제30권 제11호
발행연도
2020.1
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1,688 - 1,696 (9page)

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Soil physical and chemical characteristics, soil potential denitrification rates (PDR), community composition and nirK-, nirS- and nosZ-encoding denitrifiers were studied by using MiSeq sequencing, quantitative polymerase chain reaction (qPCR), and terminal restriction fragment polymorphism (T-RFLP) technologies base on short-term (5-year) tillage field experiment. The experiment included four tillage treatments: conventional tillage with crop residue incorporation (CT), rotary tillage with crop residue incorporation (RT), no-tillage with crop residue retention (NT), and rotary tillage with crop residue removed as control (RTO). The results indicated that soil organic carbon, total nitrogen and NH4 +-N contents were increased with CT, RT and NT treatments. Compared with RTO treatment, the copies number of nirK, nirS and nosZ in paddy soil with CT, RT and NT treatments were significantly increased. The principal coordinate analysis indicated that tillage management and crop residue returning management were the most and the second important factors for the change of denitrifying bacteria community, respectively. Meanwhile, this study indicated that activity and community composition of denitrifiers with CT, RT and NT treatments were increased, compared with RTO treatment. This result showed that nirK, nirS and nosZ-type denitrifiers communities in crop residue applied soil had higher species diversity compared with crop residue removed soil, and denitrifying bacteria community composition were dominated by Gammaproteobacteria, Deltaproteobacteria, and Betaproteobacteria. Therefore, it is a beneficial practice to increase soil PDR level, abundance and community composition of nitrogen-functional soil microorganism by combined application of tillage with crop residue management.
#Tillage #crop residue #paddy field #soil denitrification rate #community composition

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참고문헌 (33)

참고문헌 신청
Henry S / 2004 / Quantification of denitrifying bacteria in soils by nirK gene targeted real-time PCR / J. Microbiol. Methods 59:327~335 google schola Zumft W / 1997 / Cell biology and molecular basis of denitrification / Microbiol. Mol. Biol. Rev 61:533~616 google schola Chen Z / 2010 / Impact of long-term fertilization on the composition of denitrifier communities based on nitrite reductase analyses in a paddy soil / Microb. Ecol 60:850~861 google schola Braker G / 2000 / Nitrite reductase genes(nirK and nirS)as functional markers to investigate diversity of denitrifying bacteria in Pacific northwest marine sediment communities / Appl. Environ. Microbiol 66:2096~2104 google schola Li S / 2016 / Linking N2O emission from biochar-amended composting process to the abundance of denitrify(nirK and nosZ)bacteria community / AMB Exp 6:37 google schola

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