We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Diversity and interactions of rhizobacteria determine multinutrient traits in tomato host plants under nitrogen and water disturbances
Summary
Researchers investigated how root-associated bacteria help tomato plants maintain nutrient uptake under nitrogen and water stress conditions. They found that microbial diversity and species interactions were key factors in supporting the plant's ability to acquire multiple nutrients simultaneously. While not directly about microplastics, the study advances understanding of soil microbiome dynamics that are relevant to agricultural systems increasingly affected by plastic contamination.
Coevolution within the plant holobiont extends the capacity of host plants for nutrient acquisition and stress resistance. However, the role of the rhizospheric microbiota in maintaining multinutrient utilization (i.e. multinutrient traits) in the host remains to be elucidated. Multinutrient cycling index (MNC), analogous to the widely used multifunctionality index, provides a straightforward and interpretable measure of the multinutrient traits in host plants. Using tomato as a model plant, we characterized MNC (based on multiple aboveground nutrient contents) in host plants under different nitrogen and water supply regimes and explored the associations between rhizospheric bacterial community assemblages and host plant multinutrient profiles. Rhizosphere bacterial community diversity, quantitative abundance, predicted function, and key topological features of the co-occurrence network were more sensitive to water supply than to nitrogen supply. A core bacteriome comprising 61 genera, such as Candidatus Koribacter and Streptomyces, persisted across different habitats and served as a key predictor of host plant nutrient uptake. The MNC index increased with greater diversity and higher core taxon abundance in the rhizobacterial community, while decreasing with higher average degree and graph density of rhizobacterial co-occurrence network. Multinutrient absorption by host plants was primarily regulated by community diversity and rhizobacterial network complexity under the interaction of nitrogen and water. The high biodiversity and complex species interactions of the rhizospheric bacteriome play crucial roles in host plant performance. This study supports the development of rhizosphere microbiome engineering, facilitating effective manipulation of the microbiome for enhanced plant benefits, which supports sustainable agricultural practices and plant health.
Sign in to start a discussion.
More Papers Like This
Rhizospheric bacterial communities against microplastics (MPs): Novel ecological strategies based on the niche differentiation
Researchers studied how bacterial communities living around plant roots adapt when exposed to microplastics in soil. They found that rhizosphere bacteria developed distinct survival strategies depending on their ecological niche, with some species thriving while others declined in the presence of plastics. The study reveals that microplastics can reshape the microbial communities that plants depend on for nutrient uptake and disease resistance.
Uncovering the intricate relationship between plant nutrients and microplastics in agroecosystems
A study of wheat grown in soils with varying microplastic levels found complex interactions between MPs and plant macronutrients and micronutrients, with MPs altering nutrient uptake in ways that could affect crop productivity in contaminated agricultural soils.
Enhancing Soil Health and Plant Growth through Microbial Fertilizers: Mechanisms, Benefits, and Sustainable Agricultural Practices
This study examines how microbial fertilizers improve soil health by boosting beneficial microorganism populations that help plants absorb nutrients and resist disease. While not directly about microplastics, healthy soil microbial communities are important for breaking down environmental contaminants including plastics. The research supports sustainable farming practices that could help soils better cope with microplastic contamination.
Synergistic biochar‑Bacillus consortium enhances phosphorus availability, root architecture, and inflorescence development in greenhouse cherry tomato
Despite its title referencing biochar and Bacillus soil amendments, this paper studies how combining biochar with beneficial bacteria improves phosphorus availability and crop yield in greenhouse tomato farming — not microplastic pollution. It examines changes in soil microbiology and root development and is not relevant to microplastics or human health.
Microbes drive metabolism, community diversity, and interactions in response to microplastic-induced nutrient imbalance
Researchers investigated how conventional and biodegradable microplastics alter soil nutrient balances and the resulting effects on microbial metabolism, community diversity, and species interactions. The study found that microplastic-induced nutrient imbalances significantly influenced soil microbial processes, with different types of microplastics producing distinct effects on carbon and nitrogen cycling.