Partitioning biochar properties to elucidate their contributions to bacterial and fungal community composition of purple soil

Li, Yang; Yang, YanQi; Shen, Fei; Tian, Dong; Zeng, Yongmei; Yang, Gang; Zhang, Yanzong; Deng, Shihuai

doi:10.1016/j.scitotenv.2018.08.222

Cited by 50 publications

(26 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Biochar also showed a high adsorption capacity for autotoxic ginsenosides and a variety of organic and inorganic contaminants, and significantly reduced the toxicity of contaminants and autotoxins present in soils (Beesley et al, 2011;Kończak and Oleszczuk, 2018;Yang et al, 2019). There is an ubiquitous phenomenon that biochar amendment can alter soil microbial community compositions, increase microbial diversity and metabolic activity in the soil (Kolton et al, 2016;Li et al, 2019). Furthermore, biochar reduced the colonization and survival of pathogens in soil, but increased some plant growth promoting and biocontrol microorganisms (Jaiswal et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Biochar Application Alleviated Negative Plant-Soil Feedback by Modifying Soil Microbiome

Wang

Yang

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

Negative plant-soil feedback (NPSF) frequently cause replant failure in agricultural ecosystems, which has been restricting the sustainable development of agriculture. Biochar application has appealing effects on soil improvement and potential capacity to affect NPSF, but the process is poorly understood. Here, our study demonstrated that biochar amendment can effectively alleviate the NPSF and this biochar effect is strongly linked to soil microorganism in a sanqi (Panax notoginseng) production system. High-throughput sequencing showed that the bacterial and fungal communities were altered with biochar amendment, and bacterial community is more sensitive to biochar amendment than the fungal community. Biochar amendment significantly increased the soil bacterial diversity, but the fungal diversity was not significantly different between biochar-amended and non-amended soils. Moreover, we found that biochar amendment significantly increased the soil pH, electrical conductivity, organic matter, available phosphorus, available potassium, and C/N ratio. The correlation analysis showed that these increased soil chemical variables have a significantly positive correlation with the bacterial diversity. Further analysis of the soil microbial composition demonstrated that biochar soil amendment enriched the beneficial bacterium Bacillus and Lysobacter but suppressed pathogens Fusarium and Ilyonectria. In addition, we verified that biochar had no direct effect on the pathogen Fusarium solani, but can directly enrich biocontrol bacterium Bacillus subtilis. In short, biochar application can mitigate NPSF is mostly due to the fact that biochar soil amendment modified the soil microbiome, especially inhibited pathogens by enriching beneficial bacterium with antagonistic activity against pathogen.

show abstract

Section: Introductionmentioning

confidence: 99%

Biochar Application Alleviated Negative Plant-Soil Feedback by Modifying Soil Microbiome

Wang

Yang

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Although this stimulation was weakened with extended planting time, fungal abundance in the biochar-amended soils was still greater than that in unamended soils during the growing period. Zhang et al (2017), Jaiswal et al (2018), and Li et al (2019) indicated that biochar amendment positively influences fungal richness and diversity. Supporting that, significantly higher fungal richness and diversity indices were found in the biochar-amended soils.…”

Section: Discussionmentioning

confidence: 99%

Biochar-Mediated Control of Phytophthora Blight of Pepper Is Closely Related to the Improvement of the Rhizosphere Fungal Community

Wang

Chenia

et al. 2020

Front. Microbiol.

View full text Add to dashboard Cite

Biochar is a new eco-material with the potential to control soilborne diseases. This study explored the relationship between the rhizosphere fungal community and the suppression of Phytophthora blight of pepper in the context of time after biochar application. A pot experiment was conducted and rhizosphere soils were sampled to determine the biochar-induced soil chemical properties, fungal community composition, and abundance of biocontrol fungi. The biochar-enriched fungal strains were screened by the selective isolation method, and their control effects against Phytophthora blight of pepper were determined using a pot experiment. Biochar treatments effectively inhibited pathogen growth and controlled the disease, with biochar applied immediately before planting (BC0) having greater effects than that applied 20 days before planting (BC20). Compared to the control, biochar-amended rhizosphere soils had a higher pH, available nutrient content, and fungal richness and diversity. Moreover, biochar treatments significantly increased the abundance of potential biocontrol fungi. The proliferation in BC0 was stronger as compared to that in BC20. Several strains belonging to Aspergillus, Chaetomium, and Trichoderma, which were enriched by biochar amendment, demonstrated effective control of Phytophthora blight of pepper. Canonical correspondence and Pearson's correlation analysis showed that a high content of soilavailable nutrients in biochar treatments was favorable to the proliferation of beneficial fungi, which was negatively correlated with both the abundance of Phytophthora capsici and disease severity. In conclusion, biochar-mediated improvement in the fungal community suppressed the Phytophthora blight of pepper. The biochar application time had a great impact on the control effect, possibly due to the short-term proliferative effect of the biochar on biocontrol fungi.

show abstract

“…The mechanisms for improved fungal diversity and abundance appear to be correlated more with the physical micro-structure of BC and the recalcitrant organic carbon than other factors. This was demonstrated in a study where corn straw BC (500°C) derived aqueous extractable substances, organic extractable substances, and the remaining solid BC were tested [155].…”

Section: Fungimentioning

confidence: 95%

“…reported with Malus pumila woodchip BC (500°C), Eucalyptus saligna hardwood BC (550°C), and sugar maple wood BC (400°C) soil amendment, respectively. Additional studies found only modest or no differences[136,155,164,165]. The change in the composition of bacterial communities after incorporation of BC in soil is highly dependent on the preexisting bacterial community, soil type, and overall BC characteristics.Generally, the gram-negative bacterial community are favored in the nutrient-enriched BCamended soils and initially predominate the soil environment since they perform specific and narrow functions.…”

mentioning

confidence: 94%

Biochar - A Panacea for Agriculture or Just Carbon?

Tenic¹,

Ghogare‬²,

Dhingra³

2020

Preprint

View full text Add to dashboard Cite

The sustainable production of food faces formidable challenges. Foremost is the availability of arable soils, which have been ravaged by the overuse of fertilizers and detrimental soil management techniques. As such, maintenance of soil quality, and reclamation of marginal soils, has become an increasingly important endeavor. Recently, there has been emerging interest in the use of biochar, a carbon rich, porous material thought to improve various aspects of soil performance. Biochar (BC) is produced through the thermochemical decomposition of organic matter at high temperature in an oxygen limited environment, in a process known as pyrolysis. Importantly, the source of organic material, or ‘feedstock,’ used in this process and different parameters of pyrolysis, especially temperature, determine the chemical and physical properties of biochar. Incorporation of BC impacts soil-water relations, tilth and nutrient status, pH, soil organic matter (SOM), and microbial activity. Soil amendment with BC has been shown to have an overall positive impact on soil health and crop productivity; however, initial soil properties need to be considered prior to the application of BC. There is an urgent need to understand the effects of long-term field application of BC and how it influences the soil microcosm. This knowledge will facilitate predictable enhancement of crop productivity and meaningful carbon sequestration.

show abstract

Partitioning biochar properties to elucidate their contributions to bacterial and fungal community composition of purple soil

Cited by 50 publications

References 54 publications

Biochar Application Alleviated Negative Plant-Soil Feedback by Modifying Soil Microbiome

Biochar Application Alleviated Negative Plant-Soil Feedback by Modifying Soil Microbiome

Biochar-Mediated Control of Phytophthora Blight of Pepper Is Closely Related to the Improvement of the Rhizosphere Fungal Community

Biochar - A Panacea for Agriculture or Just Carbon?

Contact Info

Product

Resources

About