Biochar affects taxonomic and functional community composition of protists

Asiloglu, Rasit; Samuel, Solomon Oloruntoba; Sevilir, Bahar; Akça, Muhittin Onur; Bozkurt, Pınar Acar; Suzuki, Kazuki; Murase, Jun; Turgay, Oğuz Can; Harada, Naoki

doi:10.1007/s00374-020-01502-8

Cited by 33 publications

(17 citation statements)

References 86 publications

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“…The intercropping with biochar reduced the chance of infection by pathogenic microorganisms. This is similar to the research of Asiloglu et al (2021), who suggested that biochar treatment can affect the presence of specific groups of microorganisms in the entire network and this effect was related to their specific physicochemical properties. The intercropping system with biochar can improve the positive relationships between the microbial communities, which may reduce the energy consumed by the whole microbial community to deal with the negative effects.…”

Section: Effects Of Biochar and Intercropping On Tomato Rhizosphere Soil Microbial Communitiessupporting

confidence: 89%

“…In recent years, the co-occurrence network analysis has become an effective means to explain the complex symbiotic relationships among soil microorganisms, providing new ideas for analyzing the interactions among soil microbial communities and promoting the understanding of the ecological niche space of community members (Dai et al, 2018). Previous studies have mostly focused on the association between soil microorganisms in biochar or intercropping single factors (Li and Wu, 2018;Asiloglu et al, 2021). However, little is known about the interaction between soil microorganisms in intercropping systems with biochar.…”

Section: Introductionmentioning

confidence: 99%

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Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Xie

Gao

et al. 2021

Front. Microbiol.

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The application of biochar stimulates the activities of microorganisms that affect soil quality and plant growth. However, studies on the impacts of biochar mainly focus on a monoculture, its effects on interspecific interactions are rarely reported. Here, we investigated the impacts of biochar on tomato/potato–onion intercropped (TO) in a pot experiment. Tomato monoculture (T) and TO were treated with no, 0.3, 0.6, and 1.2% biochar concentrations in a pot experiment. Microbial communities from tomato rhizosphere soil were analyzed by quantitative PCR and Illumina MiSeq. The results showed that compared with the tomato monoculture, 0.6%TO and 1.2%TO significantly increased tomato yield in 2018. TO and 1.2%TO significantly increased plant height and dry weight in 2018 and 2019. Biochar treatments increased soil pH, decreased NO3--N and bulk density, and increased the absorption of N, P, and K by tomato. Bacterial and fungal abundances increased with an increase in biochar concentration, while Bacillus spp. and Pseudomonas spp. abundances showed an “increase-decrease-increase” trend. Biochar had a little effect on bacterial diversities but significantly lowered fungal diversities. TO, 0.6%TO, and 1.2%TO increased the potentially beneficial organisms (e.g., Pseudeurotium and Solirubrobacter) and lowered the potentially pathogenic organisms (e.g., Kribbella and Ilyonectria). Different concentrations of biochar affected the bacterial and fungal community structures. Redundancy analysis indicated that the bacterial community was strongly correlated with soil pH, NO3--N, and EC, while the fungal community was closely related to soil NO3--N and moisture. The network analysis showed that biochar and intercropping affected the symbiosis pattern of the microorganisms and increased the proportion of positive interactions and nitrifying microorganisms (Nitrospirae) in the microbial community. Overall, our results indicated that monoculture and intercropping with biochar improved soil physicochemical states and plant nutrient absorption, and regulated soil microbial communities, these were the main factors to promote tomato growth and increase tomato productivity.

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Section: Effects Of Biochar and Intercropping On Tomato Rhizosphere Soil Microbial Communitiessupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Xie

Gao

et al. 2021

Front. Microbiol.

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“…This was supported by the Asiloglu et al (2021a) revealing that the increase in the relative abundance of Stramenopiles in biochar-amended soils was highly correlated with the increases in soil total pore volume and C/N ratio. The increases in the relative abundances of protists, such as Alveolata, Amoebozoa and Excavata, were associated with increased soil pH and nutrient status (Asiloglu et al 2021a). In addition, as the predators in food web, the shifts in bacterial and fungal communities after biochar addition would also affect the behaviors of fauna (Xiong et al 2018).…”

Section: Soil Fauna Diversity and Community Structurementioning

confidence: 57%

“…Biochar-induced changes in soil physicochemical properties, such as soil pH, C availability and moisture, may affect fauna (e.g., protist) growth and community succession (Geisen et al 2018). This was supported by the Asiloglu et al (2021a) revealing that the increase in the relative abundance of Stramenopiles in biochar-amended soils was highly correlated with the increases in soil total pore volume and C/N ratio. The increases in the relative abundances of protists, such as Alveolata, Amoebozoa and Excavata, were associated with increased soil pH and nutrient status (Asiloglu et al 2021a).…”

Section: Soil Fauna Diversity and Community Structurementioning

confidence: 86%

Association of biochar properties with changes in soil bacterial, fungal and fauna communities and nutrient cycling processes

Dai

Xiong

Zhu

et al. 2021

Biochar

171

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Soil microorganisms play crucial roles in soil nutrient cycling, carbon sequestration, fertility maintenance and crop health and production. To date, the responses of microorganisms, such as microbial activity, diversity, community structure and nutrient cycling processes, to biochar addition have been widely reported. However, the relationships between soil microbial groups (bacteria, fungi and microscopic fauna) and biochar physicochemical properties have not been summarized. In this review, we conclude that biochar affects soil microbial growth, diversity and community compositions by directly providing growth promoters for soil biota or indirectly changing soil basic properties. The porous structure, labile C, high pH and electrochemical properties of biochar play an important role in determining soil microbial abundance and communities, and their mediated N and P cycling processes, while the effects and underlying mechanisms vary with biochar types that are affected by pyrolysis temperature and feedstock type. Finally, we highlight some issues related to research methodology and subjects that are still poorly understood or controversial, and the perspectives for further research in microbial responses to biochar addition.

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“…As one of the major taxa of soil microorganisms, protists are taxonomically diverse and functionally versatile (Adl et al, 2019; Asiloglu et al, 2021; Geisen et al, 2018). Protists are the major predators of bacteria and fungi (Geisen, 2016; Geisen et al, 2018), and their predatory activities are beneficial for the release of nutrients immobilized in microbial biomass, promoting nutrient turnover and plant nutrient uptake, with consequences for a wide range of ecosystem functions (Amaral Zettler et al, 2002; Bonkowski, 2004; Ishii & Shimada, 2012; Karakoç et al, 2020; Kuikman & Veen, 1989).…”

Section: Introductionmentioning

confidence: 99%

Biofertilization containing Paenibacillus triticisoli BJ-18 alters the composition and interaction of the protistan community in the wheat rhizosphere under field conditions

Wang

Chen

2022

Journal of Applied Microbiology

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Aims Most studies focus on the effects of biofertilizer on the bacterial and fungal communities, and we still lack an understanding of biofertilizer on the protistan community. Here, the effects of biofertilizer containing Paenibacillus triticisoli BJ‐18 on composition and interaction of the protistan community in the wheat rhizosphere were investigated. Methods and Results Biofertilizer application altered soil physicochemical properties and the protistan community composition, and significantly induced an alpha diversity decline. Random forecast and redundancy analysis demonstrated that nitrogenase activity and available phosphorus were the main drivers. Trichomonas classified to the phylum Metamonada was enriched by biofertilizer, and was significantly positive connected with soil nitrogenase activity and some function genes involved in nitrogen‐fixation and nitrogen‐dissimilation. Biofertilization loosely connected biotic interactions, while it did not affect the stability of the protistan community. Besides, biofertilizer promoted the connections of protists with fungi, bacteria, and archaea. Combined with biotic networks (protists, fungi, bacteria, and archaea) and interactions between protists and soil physicochemical properties/function genes, protists may act as keystone taxa potentially driving soil microbiome composition and function. Significance and Impact of the Study Overall, these results suggest that the biofertilizer is a driver of the soil protistan community, contributing to ecosystem functioning.

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Biochar affects taxonomic and functional community composition of protists

Cited by 33 publications

References 86 publications

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Biochar and Intercropping With Potato–Onion Enhanced the Growth and Yield Advantages of Tomato by Regulating the Soil Properties, Nutrient Uptake, and Soil Microbial Community

Association of biochar properties with changes in soil bacterial, fungal and fauna communities and nutrient cycling processes

Biofertilization containing Paenibacillus triticisoli BJ-18 alters the composition and interaction of the protistan community in the wheat rhizosphere under field conditions

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