Phosphorus (P) removal efficiency of constructed wetland (CW) was limited due to the adsorption saturation on substrate surface along with continuous operation of CW. This study attempted to improve the P removal of CW through introduction of plant growth-promoting rhizobacteria (PGPR). Compared with the control-CW (C-CW), the results of CW with bio-augmentation (B-CW) showed that the total phosphorus (TP) removal efficiency was increased by 36.7% due to the enhanced plant uptake of P. The physiology indicators (height and root activity) of plants in B-CW were significantly improved, and the average P content of plants in B-CW was 0.78 g/kg, which was 85.7% higher than that of C-CW (0.42 g/kg). This was because PGPR addition optimized the P forms adsorbed on substrate surface and increased the proportion of Ca/Mg-P which was bioavailable for plant growth, and then subsequently enhanced plant uptake of P. Through bio-augmentation, the proportion of P removal by plant uptake in B-CW (25.2%) was increased by 2.5 times compared with that of C-CW (7.1%). The outcomes of this study would shed light on intensifying the role of plant uptake in P removal of CWs through bio-augmentation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11356-021-14364-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Removal of antibiotics and their impact on growth, nutrient uptake, and biomass productivity in semi-continuous cultivation of Auxenochlorella protothecoides.
J Environ Manage
January 2025
Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University, Cowcaddens Road, Glasgow, G4 0BA, Scotland, UK.
The prevalence of antibiotics in wastewater poses risks to human and animal health, contributing to antimicrobial resistance. Although various antibiotic removal methods exist, microalgae-based technology presents a cost-effective and eco-friendly alternative; however, limited research on its long-term integration in semi-continuous wastewater treatment trials hinders our understanding of its potential effectiveness. This investigation explored the antibiotic removal capabilities of the microalga Auxenochlorella protothecoides in photobioreactors with synthetic wastewater under semi-continuous conditions over one month.
View Article and Find Full Text PDFFunctional carbohydrate-active enzymes acquired by horizontal gene transfer from plants in the whitefly Bemisia tabaci.
Genome Biol Evol
January 2025
Institut Sophia Agrobiotech, INRAE, Université Côte d'Azur, CNRS, Sophia Antipolis, France.
Carbohydrate-active enzymes (CAZymes) involved in the degradation of plant cell walls and/or the assimilation of plant carbohydrates for energy uptake are widely distributed in microorganisms. In contrast, they are less frequent in animals, although there are exceptions, including examples of CAZymes acquired by horizontal gene transfer (HGT) from bacteria or fungi in several of phytophagous arthropods and plant-parasitic nematodes. Although the whitefly Bemisia tabaci is a major agricultural pest, knowledge of HGT-acquired CAZymes in this phloem-feeding insect of the Hemiptera order (subfamily Aleyrodinae) is still lacking.
View Article and Find Full Text PDFPlant Resin Delivery by Nanovectors as an Emerging Approach to Boost Solubility, Permeability and Bioavailability.
Pharmaceutics
January 2025
Department of Chemistry "Ugo Schiff" (DICUS), University of Florence, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Italy.
Resins are complex mixtures of natural constituents containing non-volatile and volatile terpenes, in combination with gums and polyphenols, used since ancient times for their medicinal properties. Current research has evidenced their therapeutic value with a plethora of activities. The main limits of resins and their constituents for their clinical use are low water solubility, poor stability and bioavailability.
View Article and Find Full Text PDFA Study of the Different Strains of the Genus spp. on Increasing Productivity and Stress Resilience in Plants.
Plants (Basel)
January 2025
National Key Laboratory of Agricultural Microbiology, Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100086, China.
One of the most important and essential components of sustainable agricultural production is biostimulants, which are emerging as a notable alternative of chemical-based products to mitigate soil contamination and environmental hazards. The most important modes of action of bacterial plant biostimulants on different plants are increasing disease resistance; activation of genes; production of chelating agents and organic acids; boosting quality through metabolome modulation; affecting the biosynthesis of phytochemicals; coordinating the activity of antioxidants and antioxidant enzymes; synthesis and accumulation of anthocyanins, vitamin C, and polyphenols; enhancing abiotic stress through cytokinin and abscisic acid (ABA) production; upregulation of stress-related genes; and the production of exopolysaccharides, secondary metabolites, and ACC deaminase. is a free-living bacterial genus which can promote the yield and growth of many species, with multiple modes of action which can vary on the basis of different climate and soil conditions.
View Article and Find Full Text PDFEffects of Source on the Nitrogen Uptake, Allocation Patterns, and Performance of Strawberry ( Duch.): A N-Tracer Study.
Plants (Basel)
January 2025
Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.
Nitrogen (N) is an essential determinant of strawberry growth and productivity. However, plants exhibit varying preferences for sources of nitrogen, which ultimately affects its use efficiency. Thus, it is imperative to determine the preferred N source for the optimization of indoor strawberry production.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!