Microbial Diversity and Soil Health in Tropical Agroecosystems

Chourasiya, Dipanti; Sharma, Mahaveer P.; Maheshwari, Hemant S.; Ramesh, Aketi; Sharma, Sushil; Adhya, T. K.

doi:10.1007/978-981-10-7380-9_2

Cited by 9 publications

(6 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Soil microorganisms respond quickly to the changing external soil environment, and bacterial community structure is generally considered to be an important indicator for evaluating soil nutrients (Chourasiya et al, 2017). In recent years, the use of microorganisms to improve the soil environment and promote the restoration of vegetation in saline soil has increasingly become a hot spot (Berendsen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Variation in Bacterial Community Structure in Rhizosphere and Bulk Soils of Different Halophytes in the Yellow River Delta

et al. 2022

View full text Add to dashboard Cite

Soil microorganisms play the important role in driving biogeochemical cycles. However, it is still unclear on soil microbial community characteristics and microbial driving mechanism in rhizosphere and bulk soils of different halophyte species. In this study, we analyzed bacterial communities in the rhizosphere and bulk soils of three typical halophytes in the Yellow River Delta, i.e., Phragmites communis, Suaeda salsa, and Aeluropus sinensis, by high-throughput sequencing. The contents of total carbon, total nitrogen, and available phosphorus in rhizosphere soils of the three halophytes were significantly higher than those in bulk soils, which suggested a nutrient enrichment effect of the rhizosphere. Rhizosphere soil bacterial α-diversity of P. communis was higher than that in bulk soil, whereas bacterial α-diversity in rhizosphere soil of S. salsa and A. sinensis was lower than those in bulk soil. The dominant bacterial phyla were Proteobacteria, Actinobacteria, Chloroflexi, and Bacteroidetes, which accounted for 31, 20.5, 16.3, and 10.3%, respectively. LDA effect size (LEfSe) analysis showed that the bacterial species with significant differences in expression abundance was obviously different in the rhizosphere and bulk soil of three halophytes. The principal component analysis (PCoA) showed that bacterial community composition was greatly different between rhizosphere and bulk soils of P. communis and S. salsa, while no difference in A. sinensis. Changed bacterial community composition was mainly ascribed to salinity in rhizosphere and bulk soils. Additionally, salinity was positively correlated with Bacteroidetes and negatively correlated with Actinobacteria and Acidobacteria. Our study clarified the variation in bacterial community structure between rhizosphere and bulk soils with soil physicochemical properties, which proved a biological reference to indicate the characteristics of saline and alkaline land.

show abstract

Section: Introductionmentioning

confidence: 99%

Variation in Bacterial Community Structure in Rhizosphere and Bulk Soils of Different Halophytes in the Yellow River Delta

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In agroecosystems, particular emphasis is placed on the biodiversity of soil-inhabiting microorganisms due to their multi-faceted involvement in belowground biochemical processes. Complex communities of bacteria, fungi and archaea are responsible for the circulation of biogenic elements (C, N, P), organic matter decomposition and improving the status of degraded soils [4,5]. In studies focused on the symbiotic interactions between microorganisms and their host plants and the ability of soil microbiota to produce substances that adversely affect soil-borne phytopathogens, it was found that they have a positive impact on the health and development of agriculturally important plants [6].…”

Section: Introductionmentioning

confidence: 99%

“…In studies focused on the symbiotic interactions between microorganisms and their host plants and the ability of soil microbiota to produce substances that adversely affect soil-borne phytopathogens, it was found that they have a positive impact on the health and development of agriculturally important plants [6]. All of these factors contribute to improved soil quality and fertility which is a crucial element in the proper functioning of agroecosystems and in the maintenance of plant production at a sufficiently high level [4].…”

Section: Introductionmentioning

confidence: 99%

The Status of Soil Microbiome as Affected by the Application of Phosphorus Biofertilizer: Fertilizer Enriched with Beneficial Bacterial Strains

Mącik

Gryta

Sas-Paszt

et al. 2020

IJMS

View full text Add to dashboard Cite

Regarding the unfavourable changes in agroecosystems resulting from the excessive application of mineral fertilizers, biopreparations containing live microorganisms are gaining increasing attention. We assumed that the application of phosphorus mineral fertilizer enriched with strains of beneficial microorganisms contribute to favourable changes in enzymatic activity and in the genetic and functional diversity of microbial populations inhabiting degraded soils. Therefore, in field experiments conditions, the effects of phosphorus fertilizer enriched with bacterial strains on the status of soil microbiome in two chemically degraded soil types (Brunic Arenosol – BA and Abruptic Luvisol – AL) were investigated. The field experiments included treatments with an optimal dose of phosphorus fertilizer (without microorganisms – FC), optimal dose of phosphorus fertilizer enriched with microorganisms including Paenibacillus polymyxa strain CHT114AB, Bacillus amyloliquefaciens strain AF75BB and Bacillus sp. strain CZP4/4 (FA100) and a dose of phosphorus fertilizer reduced by 40% and enriched with the above-mentioned bacteria (FA60). The analyzes performed included: the determination of the activity of the soil enzymes (protease, urease, acid phosphomonoesterase, β-glucosidase), the assessment of the functional diversity of microorganisms with the application of BIOLOGTM plates and the characterization of the genetic diversity of bacteria, archaea and fungi with multiplex terminal restriction fragment length polymorphism and next generation sequencing. The obtained results indicated that the application of phosphorus fertilizer enriched with microorganisms improved enzymatic activity, and the genetic and functional diversity of the soil microbial communities, however these effects were dependent on the soil type.

show abstract

“…Soil microorganisms are the most active and widely distributed soil organisms that participate in transforming soil nutrients, supplying nutrients for crops, and maintaining soil microecological balance and other important responses [ 1 ]. In recent years, soil microbial diversity and population structure have become popular topics in agricultural research, particularly the correlation between soil microorganisms and crops (i.e., between rhizosphere soil microorganisms and plant growth promotion, disease resistance or stress resistance); however, soil microorganisms are vulnerable to the influence of planting patterns [ 2 , 3 ]. China’s arable land area is small, and continuous cropping is common.…”

Section: Introductionmentioning

confidence: 99%

Effects of Four Cropping Patterns of Lilium brownii on Rhizosphere Microbiome Structure and Replant Disease

Liao

Wang

et al. 2022

Plants

View full text Add to dashboard Cite

Replant disease caused by continuous cropping obstacles commonly occurs in a Lilium brownii consecutive monoculture. To reveal the mechanisms contributing to the continuous cropping obstacles of L. brownii, four cropping patterns (fallow, L. brownii-rice rotation, newly planted L. brownii, and 2-year L. brownii consecutive monoculture) were designed, and Illumina MiSeq (16S rDNA and ITS) was utilized to detect shifts in the microbial community in the rhizosphere. Our result showed that planting of L. brownii significantly reduced soil pH. Consecutive monoculture of L. brownii can significantly decrease the diversity and abundance of soil bacteria, but markedly increase the diversity and abundance of soil fungi. Under the four planting pattern treatments, the changes in soil pH were consistent with the changes in the Shannon diversity index of soil bacterial communities, whereas we observed a negative correlation between soil pH and Shannon diversity index for fungi. The relative abundance of Lactobacillales significantly increased in soils of L. brownii consecutive monoculture, while Acidobacteriales, Solibacterales, and Xanthomonadales increased in soils of L. brownii-rice rotation and newly planted L. brownii. Collectively, this work aimed to elucidate the relationship between the L. brownii planting patterns and soil microbiome, thereby providing a theoretical basis for screening new biological agents that may contribute to resolving continuous cropping obstacles of L. brownii.

show abstract

Microbial Diversity and Soil Health in Tropical Agroecosystems

Cited by 9 publications

References 64 publications

Variation in Bacterial Community Structure in Rhizosphere and Bulk Soils of Different Halophytes in the Yellow River Delta

Variation in Bacterial Community Structure in Rhizosphere and Bulk Soils of Different Halophytes in the Yellow River Delta

The Status of Soil Microbiome as Affected by the Application of Phosphorus Biofertilizer: Fertilizer Enriched with Beneficial Bacterial Strains

Effects of Four Cropping Patterns of Lilium brownii on Rhizosphere Microbiome Structure and Replant Disease

Contact Info

Product

Resources

About