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The Structure and Diversity of Nitrogen Functional Groups from Different Cropping Systems in Yellow River Delta

1
Environment Research Institute, Shandong University, Qingdao 266237, China
2
State Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
3
Department of Biological Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
4
College of Resources and Environment, Shandong Agriculture University, Tai’an 271018, China
*
Authors to whom correspondence should be addressed.
Microorganisms 2020, 8(3), 424; https://doi.org/10.3390/microorganisms8030424
Received: 13 February 2020 / Revised: 12 March 2020 / Accepted: 13 March 2020 / Published: 17 March 2020
(This article belongs to the Section Environmental Microbiology)
The Yellow River Delta (YRD) region is an important production base in Shandong Province. It encompasses an array of diversified crop systems, including the corn–wheat rotation system (Wheat–Corn), soybean–corn rotation system (Soybean–Corn), fruits or vegetables system (Fruit), cotton system (Cotton) and rice system (Rice). In this study, the communities of ammonia oxidizer–, denitrifier– and nitrogen (N)–fixing bacteria in those cropping systems were investigated by Illumina Miseq sequencing. We found that Rice soil exhibited significantly higher diversity indices of investigated N–cycling microbial communities than other crop soils, possibly due to its high soil water content. Wheat–Corn soils had higher abundances of nitrification gene amoA and denitrification genes nirK and nirS, and exhibited higher soil potential nitrification rate (PNR), compared with Soybean–Corn, Cotton and Fruit soils. Consistently, redundancy analysis (RDA) showed that soil water content (SWC), electrical conductivity (EC), and total nitrogen (TN) were the most important influencing factors of the diversity and structure of the investigated N–cycling microbial. View Full-Text
Keywords: saline–alkaline; nitrogen–cycling genes; soil bacterial community; environmental variables saline–alkaline; nitrogen–cycling genes; soil bacterial community; environmental variables
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MDPI and ACS Style

He, H.; Miao, Y.; Zhang, L.; Chen, Y.; Gan, Y.; Liu, N.; Dong, L.; Dai, J.; Chen, W. The Structure and Diversity of Nitrogen Functional Groups from Different Cropping Systems in Yellow River Delta. Microorganisms 2020, 8, 424. https://doi.org/10.3390/microorganisms8030424

AMA Style

He H, Miao Y, Zhang L, Chen Y, Gan Y, Liu N, Dong L, Dai J, Chen W. The Structure and Diversity of Nitrogen Functional Groups from Different Cropping Systems in Yellow River Delta. Microorganisms. 2020; 8(3):424. https://doi.org/10.3390/microorganisms8030424

Chicago/Turabian Style

He, Huan, Yongjun Miao, Lvqing Zhang, Yu Chen, Yandong Gan, Na Liu, Liangfeng Dong, Jiulan Dai, and Weifeng Chen. 2020. "The Structure and Diversity of Nitrogen Functional Groups from Different Cropping Systems in Yellow River Delta" Microorganisms 8, no. 3: 424. https://doi.org/10.3390/microorganisms8030424

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