Soil bacterial community as impacted by addition of rice straw and biochar

Tang, Zhiqiang; LiYing, Zhang; He, Na; DianKai, Gong; Guo, Hong; Ma, Zhengqiang; Fu, Liang; Zhao, Ming; Wang, Hui; Wang, Changhua; Zheng, Wenjing; Zhang, Wenzhong

doi:10.1038/s41598-021-99001-9

Cited by 43 publications

(18 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results in Figures 2C, D indicate that the microbial community significantly decreased after being polluted with Cr(VI). Proteobacteria and Actinobacteria were the dominant phyla in all soil samples, consistent with other reports (31,32). The properties of Proteobacteria, a slightly acidic and metabolically diverse species, can explain the high presence of these in soil samples (33).…”

Section: Discussionsupporting

confidence: 90%

Changes in the bacterial communities in chromium-contaminated soils

et al. 2023

View full text Add to dashboard Cite

IntroductionHexavalent chromium or Cr(VI) is essential to various industries, such as leather manufacturing and stainless steel production. Given that inevitable leakage from industries pollutes the soil and thereby affects the soil environment. Microbial communities could improve the quality of the soil. Abundant bacterial communities would significantly enhance the soil richness and resist external pressure, benefiting agriculture. But the pollution of heavy metal broke the balance and decrease the abundance of bacterial communities, which weak the self-adjust ability of soil. This study aimed to explore changes in the diversity of soil bacterial communities and to identify the influences of soil bacterial communities on enzymes in soil polluted by Cr(VI).MethodsThe target soils were sampled quickly and aseptically. Their chromium content was detected through inductively coupled plasma-mass spectrometry, and bacterial microbiome communities were explored through MiSeq high-throughput sequencing. Then, the content of nitrite reductase and catalases were investigated through enzyme-linked immunosorbent assay (ELISA).ResultsChromium content in polluted soils was higher than that in the control soils at all depths. Sobs, Chao1, Ace, and Shannon diversity estimators in the control were higher, whereas Simpson's diversity estimators in the control soils were lower than those of contaminated samples at all depths. Contaminants affected the composition of the bacterial community. The soil microbial species were relatively single and inhomogeneous in the polluted soils. The bacterial phyla in polluted and controlled soils include Proteobacteria, Actinobacteria, Chloroflexi, and Acidobacteria, which differ markedly in abundance.DiscussionThe results of these observations provide insights into the ecotoxicological effects of Cr(VI) exposure to soil microorganisms. To sum up these results are critical for evaluating the stabilized state of microbial community structures, contributing to the assessment of the potential risk of metal accumulation in soils.

show abstract

Section: Discussionsupporting

confidence: 90%

Changes in the bacterial communities in chromium-contaminated soils

et al. 2023

View full text Add to dashboard Cite

show abstract

“…In the present study, the BS microbial phyla were dominated by Proteobacteria and Chloroflexi . Both of them were often found as the main phyla in soils [ 51 , 52 ]. After the dairy manure application, the bacterial community structure in the soil was significantly changed by increasing the relative abundance of Firmicutes and Bacteroidetes , consistent with previous findings [ 53 ].…”

Section: Discussionmentioning

confidence: 99%

Shifts of Antibiotic Resistomes in Soil Following Amendments of Antibiotics-Contained Dairy Manure

Kang

Liu

Chen

et al. 2022

IJERPH

View full text Add to dashboard Cite

Dairy manure is a nutrition source for cropland soils and also simultaneously serves as a contamination source of antibiotic resistance genes (ARGs). In this study, five classes of antibiotics including aminoglycosides, beta-lactams, macrolides, sulfonamides, and tetracyclines, were spiked in dairy manure and incubated with soil for 60 days. The high throughput qPCR and 16S rRNA amplicon sequencing were used to detect temporal shifts of the soil antibiotic resistomes and bacterial community. Results indicated dairy manure application increased the ARG abundance by 0.5–3.7 times and subtype numbers by 2.7–3.7 times and changed the microbial community structure in soils. These effects were limited to the early incubation stage. Selection pressure was observed after the addition of sulfonamides. Bacterial communities played an important role in the shifts of ARG profiles and accounted for 44.9% of the resistome variation. The incubation period, but not the different antibiotic treatments, has a strong impact on the bacteria community. Firmicutes and Bacteroidetes were the dominant bacterial hosts for individual ARGs. This study advanced our understanding of the effect of dairy manure and antibiotics on the antibiotic resistome in soils and provided a reference for controlling ARG dissemination from dairy farms to the environment.

show abstract

“…Patescibacteria and Actinobacteriota have been suggested to induce plant root biomass and thus supporting better nutrient acquisition (63). Role of Chloroflexi in plant health is not clear although study has reported that Chloroflexi comprising anaerobic bacteria, are found to be enriched in paddy fields depending on oxygen availability and regulate soil bacterial community composition (64).…”

Section: Discussionmentioning

confidence: 99%

Regenerative Agriculture Augments Bacterial Community Structure for a Healthier Soil and Agriculture

Singh

Hussain

Manjunath

et al. 2022

Preprint

View full text Add to dashboard Cite

Use of chemical fertilization and pesticides not only harm the environment but also have detrimental consequences on human health. In recent years, there has been a major emphasis worldwide on natural agriculture methods. Regenerative agriculture is known across the world as a combination of nature-friendly farming practices such as no-till, cover cropping, crop-rotation, agro-forestry and use of organic home-based/ farm-based ingredients to revive soil health. In India, a number of farmers are slowly adopting these practices using home-based mixtures and farmyard manure for soil rejuvenation and pest management. In order to evaluate the efficacy of the regenerative agriculture practices, this study compared conventional and regenerative agriculture plots for their soil bacterial and nutrient profiles. Two crops - ragi and vegetable (tomato/beans), and different lengths (≤3 and >5 years) of regenerative practices were additional metrics considered to understand variabilities due to crop-type and period of application. We found that all regenerative practices were effective in bringing about an enrichment for soil bacteria with a more heterogeneous composition. Additionally, the regenerative vegetable (RV) plots had an enhanced representation of Actinobacteriota, Chloroflexi, Cyanobacteria and Patescibacteria in comparison to conventional vegetable (CV) plots and Barren land (BL). Similarly, the regenerative ragi (RR) plots saw higher representation of Firmicutes and Actinobacteriota in comparison to conventional ragi (CR) plots and BL. The RV plots were also found to be enriched for Plant Growth Promoting Rhizobacteria (PGPRs) - Pseudomonas sp., and RR plots were enriched for Bacillus sp., and Mesorhizobium sp., which are known to play significant roles in vegetable and ragi growth respectively. Interestingly, long-term regenerative agriculture was able to support good nutrient composition while enhancing Soil Organic Carbon (SOC) levels. In all, the regenerative agriculture practices were found to be effective in improving bacterial community structure and simultaneously improving soil health. We found that BL soil with eucalyptus plantation showed least bacterial diversity suggesting detrimental impact on soil health.

show abstract

Soil bacterial community as impacted by addition of rice straw and biochar

Cited by 43 publications

References 43 publications

Changes in the bacterial communities in chromium-contaminated soils

Changes in the bacterial communities in chromium-contaminated soils

Shifts of Antibiotic Resistomes in Soil Following Amendments of Antibiotics-Contained Dairy Manure

Regenerative Agriculture Augments Bacterial Community Structure for a Healthier Soil and Agriculture

Contact Info

Product

Resources

About