Bacterial community structure in maize residue amended soil with contrasting management practices

Ramírez-Villanueva, Daniel Alejandro; Bello–López, Juan Manuel; Navarro‐Noya, Yendi E.; Luna‐Guido, Marco; Verhulst, Nele; Govaerts, Bram; Dendooven, Luc

doi:10.1016/j.apsoil.2015.01.010

Cited by 74 publications

(42 citation statements)

References 42 publications

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“…Cover crops can impact the soil microbiome by changing soil characteristics (e.g., pH, temperature, and soil water content) which are known to influence soil microbial communities [11,18,23]. In addition, cover crops offer additional organic substrates through the input of plant residues and rhizodeposition, which may impact soil microbial communities [55][56][57].…”

Section: Cover Crops Increase Soil Microbial Diversitymentioning

confidence: 99%

Impact of Cover Crops on the Soil Microbiome of Tree Crops

Castellano‐Hinojosa

Strauss

2020

Microorganisms

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Increased concerns associated with interactions between herbicides, inorganic fertilizers, soil nutrient availability, and plant phytotoxicity in perennial tree crop production systems have renewed interest in the use of cover crops in the inter-row middles or between trees as an alternative sustainable management strategy for these systems. Although interactions between the soil microbiome and cover crops have been examined for annual cropping systems, there are critical differences in management and growth in perennial cropping systems that can influence the soil microbiome and, therefore, the response to cover crops. Here, we discuss the importance of cover crops in tree cropping systems using multispecies cover crop mixtures and minimum tillage and no-tillage to not only enhance the soil microbiome but also carbon, nitrogen, and phosphorus cycling compared to monocropping, conventional tillage, and inorganic fertilization. We also identify potentially important taxa and research gaps that need to be addressed to facilitate assessments of the relationships between cover crops, soil microbes, and the health of tree crops. Additional evaluations of the interactions between the soil microbiome, cover crops, nutrient cycling, and tree performance will allow for more effective and sustainable management of perennial cropping systems.

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Section: Cover Crops Increase Soil Microbial Diversitymentioning

confidence: 99%

Impact of Cover Crops on the Soil Microbiome of Tree Crops

Castellano‐Hinojosa

Strauss

2020

Microorganisms

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“…The same maize plants were used in this experiment as in the one used in the study reported by Ramírez-Villanueva et al (2015). Briefly, maize seeds were surface-sterilized and germinated on 0.8% agar-water plates.…”

Section: Cultivation Of the Maize Plantsmentioning

confidence: 99%

“…DNA was extracted from each soil sample as previously described by Ramírez-Villanueva et al (2015). First, humic and fulvic acids were removed with pyrophosphate and three different cell lysis techniques were applied (Hoffman and Winston, 1987;Sambrook and Russell, 2001;Valenzuela-Encinas et al, 2008) to obtain an optimum representation of all the microorganisms in the soil samples (Carrigg et al, 2007).…”

Section: Dna Extraction and Pcr Amplification Of Bacterial 16s Rrna Gmentioning

confidence: 99%

Soil Salinity Controls Relative Abundance of Specific Bacterial Groups Involved in the Decomposition of Maize Plant Residues

et al. 2018

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Extreme salinity and alkalinity in soil is known to inhibit organic material decomposition and affect the bacterial community structure involved in its mineralization. Regular flooding of these soils will reduce salinity, which will alter the bacterial community involved in organic material mineralization. Soil of the former lake Texcoco with electrolytic conductivity (EC) 157.4 dS m −1 and pH 10.3 was flooded monthly, amended with maize plant residue or its neutral detergent fiber [NDF; mostly (hemi)cellulose and some lignin], while C mineralization and the bacterial community structure was monitored by means of 454 pyrosequencing of the 16S rRNA gene. The EC of the soil dropped from 157.8 to 1.7 dS m −1 , but the pH (10.3) did not change significantly over time. On the one hand, the relative abundance of some bacterial groups, e.g., Bacillus and Gammaproteobacteria, always increased when maize plants or NDF were applied to soil independent of the changes in soil characteristics, i.e., they always participated in the degradation of the organic material applied, while the relative abundance of other groups, e.g., Acidobacteria, Alphaproteobacteria, Chloroflexi, Clostridia, Deltaproteobacteria, Gemmatimonadetes, Planctomycetes, and Verrucomicrobia, always decreased compared to the unamended soil. On the other hand, the increase or decrease of the relative abundance of other bacterial groups when organic material was applied to soil was influenced by the changes in soil characteristics. For instance, the relative abundance of the Actinomycetales, Halomonas, and Prauseria, did not increase when organic material was applied to soil with a high salt content, but did when the salt content was lowered while that of the Betaproteobacteria and Pirellulales increased when the salt content was high, but not when it was lowered. Application of the NDF generally had a similar effect on the bacterial community structure as when maize plants were applied. It was found that the capacity of some bacterial groups to degrade organic material was not affected by soil salt content, while that of others was stimulated or suppressed.

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“…Previous studies revealed that diversity and relative abundance of bacterial taxa in the maize rhizosphere and bulk soils showed considerable differences [7,8]. The biomass and the abundance of microorganisms, together with the diversity and the enzyme activities of maize-associated microbial communities can be influenced by the types of fertilization regimes [9][10][11][12][13][14], crop rotation [15,16] and growth stages of the maize plants [17,18]. Previously, Fierer et al [19] studied the effect of different soil nitrogen concentrations on the phylogenetic diversity of bacteria in grassland and crop rotation soils using 16S rRNA gene amplicon sequencing, functional diversity by shotgun metagenome sequencing and catabolic activity profiles.…”

Section: Introductionmentioning

confidence: 99%

“…Their results showed differences both in phylogenetic and functional diversity and even in catabolic activity profiles along the nitrogen gradients; however, there were no strong differences in bacterial community structures, but an increase in the proportion of copiotrophic Proteobacteria and Bacteriodetes and a decrease in oligotrophic Acidobacteria was shown. From an ecological point of view, r-strategist copiotrophic bacteria (adapted to nutrient rich environments) were found to be dominant in the early-stage maize plants and in conservation agriculture while they were replaced by K-strategist oligotrophic bacteria (present in nutrient poor environments) around senescent roots and in agricultural soils farmed with conventional practices [11,20].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Soil Bacterial Communities from Juvenile Maize Plants of a Long-Term Monoculture and a Natural Grassland

et al. 2020

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Nowadays, one of the most important challenges is to ensure sustainable agricultural management of crops such as maize (Zea mays L.). Long-term crop production, however, may influence the soil properties, the composition and activity of microbial communities. The aim of this study was to compare the catabolic activity and taxonomic diversity of bacterial communities inhabiting the soil of a non-fertilized maize monoculture and a natural grassland. Samples were taken from the horizons A and C in the first part of the vegetation period. MicroResp™ technique was used to explore the catabolic potential of microbial communities and next generation amplicon sequencing to reveal the bacterial diversity. Based on the catabolic activity results, higher differences were revealed among the soil horizons than the different land uses. The highest degree carbon source utilization was detected in the soil horizon A of the natural grassland. The taxonomic composition of bacterial communities was dominated by Proteobacteria. The relative abundance of other dominant phyla (Acidobacteria, Bacteroidetes, Verrucomicrobia, Actinobacteria, Planctomycetes, Gemmatimonadetes, Chloroflexi and Patescibacteria) varied according to both the land use and soil depth. Amplicon sequences belonging to genera of r-strategist “copiotrophic” and K-strategist “oligotrophic” bacteria were identified from the soils of both maize monoculture and grassland.

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Bacterial community structure in maize residue amended soil with contrasting management practices

Cited by 74 publications

References 42 publications

Impact of Cover Crops on the Soil Microbiome of Tree Crops

Impact of Cover Crops on the Soil Microbiome of Tree Crops

Soil Salinity Controls Relative Abundance of Specific Bacterial Groups Involved in the Decomposition of Maize Plant Residues

Comparison of Soil Bacterial Communities from Juvenile Maize Plants of a Long-Term Monoculture and a Natural Grassland

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