Abstract:
:Rice cultivation is the main method for mudflat reclamation. However, changes in the community structure of microbes involved in nitrogen (N) cycling in response to mudflat reclamation via rice cultivation remain poorly understood. This study used quantitative polymerase chain reaction to characterize the distribution of various inorganic N-cycling pathways in response to mudflat reclamation via rice cultivation. The results show that the abundance of functional genes followed an increasing trend, while the relative abundance showed a decreasing trend. The relative richness of functional genes in the inorganic N-cycling network showed different fluctuation trends and indicated that the nifH, archaea amoA, narG, nirS, nirK, norB, and nosZ genes greatly contribute to inorganic N-cycling. Redundancy analysis showed that soil properties, in particular, organic matter increased, while electrical conductivity decreased, driving the changes of gene distribution in the inorganic N-cycling network over the course of reclamation. Mudflat reclamation under long-term rice cultivation promoted the reproduction of microbes related to the N cycle, and also changed the distribution of functional genes that are involved in the inorganic N cycle due to changes of soil properties.
journal_name
J Basic Microbioljournal_title
Journal of basic microbiologyauthors
Zhang Y,Li Q,Chen Y,Dai Q,Hu Jdoi
10.1002/jobm.201800660subject
Has Abstractpub_date
2019-05-01 00:00:00pages
496-503issue
5eissn
0233-111Xissn
1521-4028journal_volume
59pub_type
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