Dynamic Change in Enzyme Activity and Bacterial Community with long-term rice Cultivation in Mudflats

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

doi:10.1007/s00284-019-01636-5

Cited by 41 publications

(25 citation statements)

References 35 publications

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“…It is interesting to highlight that soil parameters such as TOC and some nutrients like TN, Mg and B were associated with changes in soil bacterial community, although this association was not observed in the fungal community. Similar results were observed by Yang et al [60] and Zhang et al [61] who found a link between the bacterial community and soil chemical properties. Organic carbon is considered necessary to alter microbial community regardless other factors [62] and is well known that compost enhance carbon and nitrogen in soils for microbial communities [63].…”

Section: Discussionsupporting

confidence: 90%

“…Pantoea comprises many versatile species with different functions like the degradation of herbicides and other toxic compounds, and some isolates are antibiotic producers [87]. Some Pseudoalteromonas strains can produce bioactive compounds [88], and Sporobolomyces is a yeast capable of pesticide degradation [61]. Under Org_C, Turicibacter, Dinghiubacter, Planifilium, Roseibacillus, Piscibacillus and Candida were more abundant.…”

Section: Discussionmentioning

confidence: 99%

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Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems

Cuartero¹,

Özbolat²,

Sánchez-Navarro³

et al. 2021

Preprint

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Microbial communities play a key role in sustainable agriculture. However, we still need more in-formation, to understand the complex response of the microbial community to long-term organic farming, which aims to reduce synthetic fertilizer and pesticide use in order to produce sustainably and improve soil quality. We have assessed the long-term effect of two organic cropping systems and a conventional system on the microbial soil community structure using high-throughput se-quencing analysis. We analyzed the link between these communities and changes in soil properties and crop yield. Results showed that the crop yield was similar among the three cropping systems. Soil properties, such as total organic carbon, nitrogen, ammonium, magnesium and boron, influ-enced changes in the bacterial community structure. A linear discriminant analysis effect size (LEfSe) showed different bacteria and fungi as key microorganism of each of the three different cropping systems, in addition, our results reflected that fungal community were more sensitive than bacteria to cropping system. This research provides an insight about changes occurred in soils, especially in microbial communities considering the effect of that changes in crop yield which were remained stable among the different cropping systems.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems

Cuartero¹,

Özbolat²,

Sánchez-Navarro³

et al. 2021

Preprint

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show abstract

“…This was different from Zhang, Li, Chen, Dai, and Hu (2019) (Table 4). As to Bacilli, fatty acid methyl ester (FAME) analysis on the diversity of Bacilli showed that most species possessed the ability to tolerate high salt, form endospores, and withstand harsh environments (Sharma et al, 2015).…”

Section: Relationship Between Bacterial Community Composition and Smentioning

confidence: 63%

Response of soil characteristics and bacterial communities to nitrogen fertilization gradients in a coastal salt‐affected agroecosystem

et al. 2020

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Understanding the relationship between fertilization and soil bacterial communities in a salt-affected environment is essential for alleviating the adverse impact of excessive salinity on soil biochemical functioning. However, how soil bacterial communities respond to consecutive fertilization across nitrogen gradients in coastal agroecosystemhas not yet been clarified. We conducted a field plot experiment with four nitrogen fertilization rates (0, 150, 300, and 450 kg N hm −2 yr −1 ) on coastal salt-affected soil for three consecutive years. Temporal dynamics of soil chemical and microbial properties was characterized, and soil bacterial community composition against N fertilization rates was investigated using 16S rRNA gene sequencing. Results indicated that consecutive N fertilization significantly increased soil organic carbon, total nitrogen (TN), available nitrogen (AN), available phosphorous, microbial biomass carbon (MBC), microbial biomass nitrogen and net nitrogen mineralization rate (NMR). N fertilization rates and cultivation years exhibited interactive effect on TN, AN, MBC and NMR. Soil bacterial community richness and diversity increased with the nitrogen rates. Predominant bacterial classes were Deltaproteobacteria, Anaerolineae, Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Actinobacteria and Planctomycetia. Increasing nitrogen fertilization resulted in an elevation in the relative abundance of classes Alphaproteobacteria, Gammaproteobacteria, Planctomycetia and Nitrospira, and a decline in Anaerolineae, Acidobacteria_Gp6, Cytophagia, Bacilli and Acidobacteria_Gp10. Community composition of Alphaproteobacteria, Planctomycetia and Nitrospira was significantly associated with potential nitrification rate (PNR), whereas that of Actinobacteria was relevant to carbon mineralization rate. Results underlined that nitrogen fertilization improved nutrients, biochemical characteristics and metabolic activities to create more suitable bacterial microhabitats in the coastal agroecosystem.

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“…5). However, the diversity of microbial and species richness showed an increasing trend with desalinization (Table 1; Zhang et al 2019). This means that soil stability and self-purification capacity of ecosystems have been enhanced (Janvier et al 2007), thus inhibiting the propagation of pathogens.…”

Section: R a F Tmentioning

confidence: 99%

Mudflat reclamation causes change in the composition of fungal communities under long-term rice cultivation

Zhang

Chen

et al. 2019

Can. J. Microbiol.

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Fungi play a critical role in farmland ecosystems, especially in improving soil fertility; however, little is known about the changes in fungal communities caused by mudflat reclamation under rice cultivation. In this study, mudflats located in Yancheng, China, which were divided into nine plots with 0, 11, and 20 years of successive rice cultivation histories, were sampled to determine the fungal community composition by using Illumina MiSeq sequencing. Results show that the Shannon diversity of the fungal communities did not change significantly but the species richness increased under mudflat reclamation with long-term rice cultivation. Ascomycota was the dominant phylum throughout the reclaimed mudflats samples, while Sordariomycetes was the dominant class. Fungal functional prediction found that the relative abundance of saprotrophs gradually increased with mudflat reclamation and mainly belonged to Ascomycota after 20 years of successive reclamation. Redundancy analysis showed that electrical conductivity, organic matter, and total nitrogen were the main factors affecting the composition and ecological function of the fungal community during mudflat reclamation. In short, a fungal community dominated by Ascomycota was established during mudflat reclamation under rice cultivation, which is more conducive to promoting soil fertility because of the higher proportion of saprotrophic fungi in Ascomycota.

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Dynamic Change in Enzyme Activity and Bacterial Community with long-term rice Cultivation in Mudflats

Cited by 41 publications

References 35 publications

Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems

Changes on Bacterial and Fungal Soil Communities in Long-Term Organic Cropping Systems

Response of soil characteristics and bacterial communities to nitrogen fertilization gradients in a coastal salt‐affected agroecosystem

Mudflat reclamation causes change in the composition of fungal communities under long-term rice cultivation

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