Carbon-nutrient stoichiometry drives phosphorus immobilization in phototrophic biofilms at the soil-water interface in paddy fields

Liu, Junzhuo; Sun, Pengfei; Sun, Rui; Wang, Sichu; Gao, Bo; Tang, Jun; Wu, Yonghong; Dolfing, Jan

doi:10.1016/j.watres.2019.115129

Cited by 32 publications

(23 citation statements)

References 49 publications

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“…Additionally, being similar to the effect of pH on Mn content in soil (Barber, 1995), pH in floodwater also affects the forms and transferability of Mn (Brown et al, 2019), it is then affect Mn accumulation in periphytic biofilm. Furthermore, periphytic biofilm could capture Ca and P (Li et al, 2017;Liu et al, 2019), and the accumulation of Mn enhances the capture of Ca and P by periphytic biofilms (Peng et al, 2019). This is due to Mn accumulation by microbes is a process of the formation of Mn oxides (Amirnia et al, 2019;Peng et al, 2019), and the biogenic Mn oxides could offer extra binding sites for a variety of elements such as uranium, cadmium, hydrogen, arsenic, et al, (Parikh & Chorover, 2005;Ren et al, 2020;Yu et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…A periphytic biofilm is a mixture of prokaryotes and eukaryotes, with both the prokaryotes and the eukaryotes embedded in a matrix of extracellular polymeric substances (EPS) (Liu et al, 2019;Wu, 2016). Environmental factors (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Environmental factors (e.g. light and temperature) (Trabelsi et al, 2009) and soil nutrients (Flemming & Wingender, J o u r n a l P r e -p r o o f 2010; Freitas et al, 2017) shape its microbial community composition and diversity, which in turn affect its functional roles (Liu et al, 2019). Thus, analysis of the microbial composition of periphytic biofilms as shaped by different environmental factors would contribute to elucidating the underlying microbiological mechanisms by which periphytic biofilms fulfill their functional roles.…”

Section: Introductionmentioning

confidence: 99%

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Periphytic biofilms accumulate manganese, intercepting its emigration from paddy soil

Sun

Gao

Sun

et al. 2021

Journal of Hazardous Materials

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Periphytic biofilms accumulate manganese, intercepting its emigration from paddy soil

Sun

Gao

Sun

et al. 2021

Journal of Hazardous Materials

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“…Biofilm‐mediated nutrient cycling was a common research theme, especially P release. Liu, Sun, et al (2019) found algal diversity, bacterial diversity, and EPS content in paddy fields were positively correlated with biomass P content (concurrent with an increase in green algal abundance) and negatively correlated with water total P concentration, which means microbiota play a role in P immobilization from the sediment and P uptake from the water column. Zhao, Chen, et al (2019) observed that in closed water systems, periphyton temporarily stored P following nutrient input and temperature and light strongly influenced the capture and release of P. Salinization in a mesocosm experiment led to an increase in biomass of phytoplankton, which McGowan, Leavitt, Barker, and Moss (2020) related to increased P release while aquatic plants and periphyton declined in the benthos.…”

Section: Algaementioning

confidence: 99%

Substratum‐associated microbiota

Furey

Lee

Clemans

2020

Water Environment Research

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Highlights of new, interesting, and emerging research findings on substratum-associated microbiota covered from a survey of 2019 literature from primarily freshwaters provide insight into research trends of interest to the Water Environment Federation and others interested in benthic, aquatic environments. Coverage of topics on bottom-associated or attached algae and cyanobacteria, though not comprehensive, includes new methods, taxa new-to-science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, and bloom-forming and harmful algae. Coverage of bacteria, also not comprehensive, focuses on the ecology of benthic biofilms and microbial communities, along with the ecology of microbes like Caulobacter crescentus, Rhodobacter, and other freshwater microbial species. Bacterial topics covered also include metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. Readers may use this literature review to learn about or renew their interest in the recent advances and discoveries regarding substratum-associated microbiota. © 2020 Water Environment Federation • Practitioner points • This review of literature from 2019 on substratum-associated microbiota presents highlights of findings on algae, cyanobacteria, and bacteria from primarily freshwaters. • Coverage of algae and cyanobacteria includes findings on new methods, taxa new to science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, bloomforming and harmful algae. • Coverage of bacteria includes findings on ecology of benthic biofilms and microbial communities, the ecology of microbes, metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. • Highlights of new, noteworthy and emerging topics build on those from 2018 and will be of relevance to the Water Environment Federation and others interested in benthic, aquatic environments

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“…The photic biofilms, which were composed of phototrophic, chemoautotrophic, and heterotrophic microorganisms (e.g., algae, bacteria, fungi), were developed ubiquitously at the uppermost millimeters of paddy soil. , The conversion occurrence of net photosynthesis and respiration induced by photic biofilms inevitably caused the daily redox fluctuation at the soil–water interface. , Although the photic biofilms contributed to many ecosystem processes, including atmospheric CO 2 uptake and phosphorus accumulation, , little information was available about whether and how they affected soil processes, especially those related to nitrogen cycles. Therefore, these photic biofilms that could disturb soil electrochemistry properties (e.g., Fe speciation) might play a vital, yet overlooked, role in the nitrate reduction.…”

Section: Introductionmentioning

confidence: 99%

Photic Biofilms Mediated Distant Nitrate Reduction at the Soil–Water Interface of Paddy Fields

Zhu

Zhang

Yang

et al. 2021

ACS Earth Space Chem.

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Photic biofilms widely exist on the surface of paddy soil and play a key role in nutrient transformation and accumulation in the soil−water interface. However, whether and how photic biofilms affect nitrogen cycles in the subsoil remained unclear. This study investigated the processes and mechanisms of nitrate reduction in waterlogged paddy soil in the presence (treatment) or absence (control) of photic biofilms. The observed nitrate reduction rate constant (k obs ) in the treatment soil increased 1.7 times compared with control. This accelerated k obs was attributed to the synergistic effect between poorly crystalline Fe minerals and autotrophic denitrifiers in soil, which was highly related to the presence of the photic biofilms. Photic biofilms aggravating daily redox oscillations at the soil−water interface promoted the formation of poorly crystalline Fe minerals available for microorganisms. Thus, photic biofilms increased the relative abundance of electroactive bacteria (Sphingomonadaceae and Xanthobacteraceae), iron reduction bacteria (Geobacter and Ignavibacterium), and denitrifiers (Rhodanobacteraceae and Burkholderiaceae) with higher copy numbers of nirK, nirS, and nosZ genes, thereby accelerating the nitrate reduction. Additionally, poorly crystalline Fe minerals contributed to improving interfacial electron transfer ability, which improved the activity of denitrifiers. These results suggested that the photic biofilms bioelectrochemically mediated the nitrate reduction in the waterlogged paddy soil.

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Carbon-nutrient stoichiometry drives phosphorus immobilization in phototrophic biofilms at the soil-water interface in paddy fields

Cited by 32 publications

References 49 publications

Periphytic biofilms accumulate manganese, intercepting its emigration from paddy soil

Periphytic biofilms accumulate manganese, intercepting its emigration from paddy soil

Substratum‐associated microbiota

Photic Biofilms Mediated Distant Nitrate Reduction at the Soil–Water Interface of Paddy Fields

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