Mudflat reclamation causes changes of gene abundance in nitrogen cycle under long‐term rice cultivation

Zhang, Yang; Li, Qing; Chen, Yinglong; Dai, Qigen; Hu, Jian

doi:10.1002/jobm.201800660

Cited by 9 publications

(7 citation statements)

References 35 publications

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“…Moreover, the increase of Nitrososphaeraceae ( Candidatus_Nitrososphaera ) and Nitrosotaleaceae abundance with increasing reclamation time could be explained by the N fertilizer application these agricultural soils. Similarly, according to the amoA gene, the abundance of ammonia oxidizing archaea increased significantly in correspond to the reclamation time of mudflat (Zhang et al, 2019b). However, Nitrosarchaeum (formly Nitrosopumilus ) associated species, which was first isolated from marine environment (Könneke et al, 2005), showed a sharp decrease from the younger reclaimed site to the longest reclaimed site, and this phenomenon was consistent with previous findings reported along the intertidal zones of the Zhoushan Islands, China (Hu et al, 2019).…”

Section: Discussionmentioning

confidence: 97%

Shift in archaeal community along a soil profile in coastal wheat‐maize rotation fields of different reclamation ages

et al. 2021

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Coastal mudflats reclamation activities show a strong influence on soil properties and microbial community activity, which drive soil carbon and nitrogen cycling. Studies have found there is a shift of bacterial community with reclamation time. However, effects of reclamation time on the soil archaeal community are still largely unknown.Here, we determined soil properties and archaeal community in the soil profiles (0-15, 15-30, 30-45 cm) of different reclaimed sites with different reclamation ages (R12: 12-year; R38: 38-year; R68: 68-year; R100: 100-year) in Rudong County, Jiangsu, China. Soil archaeal communities were identified via Illumina high-throughput sequencing. Soil archaeal communities were dominated by two phyla, the Crenarchaeota (82.1-93.3%) and Thermoplasmatota (4.2-17.9%), which are associated with nitrogen cycle (Nitrosopumilaceae, Nitrososphaeraceae, and Nitrosotaleaceae) and organic carbon metabolism (Marine_Group_II), respectively. Ammonia oxidizing archaea showed a divergent response to the reclamation, i.e. Nitrosotaleaceae increased with reclamation time whereas Nitrosopumilaceae showed a decreasing trend. Soil total carbon, total nitrogen, pH, EC, C:N ratio, NO 3 À -N content, soil moisture, depth, and reclamation age determined archaeal community distribution in our reclaimed sites. Our findings suggest that both reclamation time and soil depth significantly shaped the archaeal community composition, and then in turn modulated soil carbon and nitrogen cycling in the reclaimed mudflats.

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Section: Discussionmentioning

confidence: 97%

Shift in archaeal community along a soil profile in coastal wheat‐maize rotation fields of different reclamation ages

et al. 2021

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“…Microbes are critical in farmland ecosystems, particularly in improving soil fertility. Significant changes were also found in microbial communities caused by mudflat reclamation under rice cultivation 47 . The fungal community composition of soil showed notable differences among the first, the secondand the third rotation plantation during consecutive monoculture in Casuarina equisetifolia plantations 48 .…”

Section: Discussionmentioning

confidence: 96%

Ganoderma lucidum cultivation affect microbial community structure of soil, wood segments and tree roots

Ren

Zhang

et al. 2020

Sci Rep

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The popular medicinal mushroom Ganoderma lucidum (Fr.) Karst. [Ling Zhi] has been widely used for the general promotion of health and longevity in Asian countries. Continuous cultivation may affect soil microbe and soil properties. However, the effect of G. lucidum cultivation on related wood segments, soil and tree roots microbial communities and soil properties is remain unknown. In our study, the microbial communities of soils, wood segments, and tree roots before and after G. lucidum cultivation were investigated by Illumina Miseq sequencing of both ITS and 16S rDNA, and taxonomic composition of eukaryotic and prokaryotic microorganisms were observed. Indices of microbial richness, diversity and evenness significantly differed between before and after G. lucidum cultivation. Each of the investigated sampling type harbored a distinctive microbial community and differed remarkably before and after G. lucidum cultivation. Ascomycota and Basidiomycota (fungi), Proteobacteria and Actinobacteria (bacteria) showed significant differences after Ling Zhi cultivation. The soil property values also changed after cultivation. The redundancy analysis (RDA) showed that both the fungal and bacterial community structure significantly correlated with soil humus, pH, nitrogen, carbon and trace elements (Fe, Zn, Mn, Cu) contents. The results indicated that G. lucidum cultivation may have significant differed the associated microbial community structures and soil properties. The study will provide useful information for G. lucidum cultivation and under-forest economic development.

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“…wileyonlinelibrary.com/jsfa study. 27 The qPCR was performed to determine the abundance of the nrfA genes with the primer nrfAF2aw and nrfAR1. 28 To normalize the abundance of the N-cycling genes, the abundance of the 16 S rRNA genes was quantified with the primer 341F and 534R.…”

Section: Quantitative Polymerase Chain Reaction Analysismentioning

confidence: 99%

“…29 The qPCR was performed using The standard curves were established as described in a previous study. 27…”

Section: Quantitative Polymerase Chain Reaction Analysismentioning

confidence: 99%

Influence of biochar‐based urea substituting urea on rice yield, bacterial community and nitrogen cycling in paddy fields

Zhang

Chen

et al. 2022

J Sci Food Agric

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BACKGROUND There is an increasing understanding of the importance of biochar‐based fertilizers in agroecosystems. However, no research has evaluated the effects of partial substitution of urea with biochar‐based urea on rice yields and soil microbial communities. We therefore investigated the rice yields, bacterial communities, and gene abundance involved in nitrogen in silty clay and sandy loam soil paddy fields treated with urea (U), total substitution of urea with biochar‐based urea (BSU), partial substitution of urea with biochar‐based urea in basal and tillering fertilizers (BSU1), and partial substitution of urea with biochar‐based urea in panicle fertilizers (BSU2). RESULTS Compared with U, applying biochar‐based urea increased rice yields, with BSU2 having the most notable effect. Principal coordinate analysis revealed that bacterial communities treated with BSU2 in both soils were significantly different from those treated with U and BSU, most probably due to the decrease in pH caused by the decrease in the concentration of ammonium. The relative abundance of Subdivision3_genera_incertae_sedis, Azotobacter, Geobacter, Buchnera, and Terrimonas in silty clay soils and Saccharibacteria_genera_incertae_sedis and Geobacter in sandy loam soils significantly increased when treated with BSU2 and was positively correlated with rice yields, indicating that the improvements in rice yield were associated with changes in bacterial communities. Based upon amoA/narG related to nitrate accumulation and norB/nosZ related to nitrous oxide emissions, BSU2 enabled a lower risk of nitrate leaching and nitrous oxide emissions in both soils, in comparison with the U and BSU treatments. CONCLUSION The BSU2 treatment had a stronger yield‐increasing effect than biochar‐based urea alone and lowered the risk of nitrogen pollution, which is beneficial to the sustainable development of paddy fields. © 2022 Society of Chemical Industry.

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Mudflat reclamation causes changes of gene abundance in nitrogen cycle under long‐term rice cultivation

Cited by 9 publications

References 35 publications

Shift in archaeal community along a soil profile in coastal wheat‐maize rotation fields of different reclamation ages

Shift in archaeal community along a soil profile in coastal wheat‐maize rotation fields of different reclamation ages

Ganoderma lucidum cultivation affect microbial community structure of soil, wood segments and tree roots

Influence of biochar‐based urea substituting urea on rice yield, bacterial community and nitrogen cycling in paddy fields

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