We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
A Comparison of Rice Root Microbial Dynamics in Organic and Conventional Paddy Fields
Summary
Researchers compared the root-associated microbial communities of rice plants grown in organic versus conventional paddy fields across different growth stages. They found that organic farming supported more dynamic and diverse microbial communities, including beneficial methane-oxidizing and nitrogen-fixing bacteria at key growth stages. The study suggests that agricultural management practices significantly shape the microbial partners that support rice plant health and nutrient uptake throughout the growing season.
The assembly of plant root microbiomes is a dynamic process. Understanding the roles of root-associated microbiomes in rice development requires dissecting their assembly throughout the rice life cycle under diverse environments and exploring correlations with soil properties and rice physiology. In this study, we performed amplicon sequencing targeting fungal ITS and the bacterial 16S rRNA gene to characterize and compare bacterial and fungal community dynamics of the rice root endosphere and soil in organic and conventional paddy fields. Our analysis revealed that root microbial diversity and composition was significantly influenced by agricultural practices and rice developmental stages (p < 0.05). The root microbiome in the organic paddy field showed greater temporal variability, with typical methane-oxidizing bacteria accumulating during the tillering stage and the amount of symbiotic nitrogen-fixing bacteria increasing dramatically at the early ripening stage. Redundancy analysis identified ammonium nitrogen, iron, and soil organic matter as key drivers of microbial composition. Furthermore, correlation analysis between developmental stage-enriched bacterial biomarkers in rice roots and leaf mineral nutrients showed that highly mobile macronutrient concentrations positively correlated with early-stage biomarkers and negatively correlated with later-stage biomarkers in both paddy fields. Notably, later-stage biomarkers in the conventional paddy field tended to show stronger correlations with low-mobility nutrients. These findings suggest potential strategies for optimizing microbiome management to enhance productivity and sustainability.
Sign in to start a discussion.
More Papers Like This
In-Depth Insights into the Complex Interplay Between Microbial Diversity, Ecological Functionality, and Soil Health in Rice Agroecosystems
This review paper summarizes existing research on tiny organisms (microbes) that live in rice paddies and how they affect the rice we eat. Scientists found that these microbes play important roles in rice farming - they help break down plant waste, control harmful gases like methane, and can influence whether rice contains dangerous toxins or beneficial nutrients. The research suggests that farmers could manage these microbes better to grow healthier rice while protecting the environment, but more studies are needed to make this practical.
Culturomics and Amplicon-Based Metagenomic Insights into the Bacteria of Soils with High Yield of Oryza sativa L. subsp. Japonica
Researchers used culturomics and amplicon-based metagenomics to characterise bacterial communities in rhizosphere and bulk soils of high-yield Oryza sativa japonica paddy fields, identifying the microorganisms contributing to rice growth adaptability. The combined approach revealed the taxonomic composition and functional potential of the bacterial community in the paddy field agroecosystem.
Early inoculation of an endophyte alters the assembly of bacterial communities across rice plant growth stages
Researchers inoculated rice seedlings with a beneficial core endophytic bacterium and tracked how it affected bacterial communities throughout the plant's growth stages. They found the inoculation significantly altered microbial diversity in roots and stems and influenced bacterial community assembly. The study suggests that early introduction of beneficial microbes could be a useful tool for shaping healthier plant-associated microbial communities in agriculture.
Management affects the diversity and functions of root and leaf-associated microbiomes: implications for olive resilience
Researchers studied how different farming practices, including organic, conventional, and traditional methods, shape the microbial communities associated with olive tree roots and leaves. They found that agricultural management significantly influenced microbiome diversity and functional traits, with organic practices generally supporting more beneficial microbe populations. The findings suggest that farming methods play an important role in the overall health and resilience of olive trees.
Maize root-soil microbial interactions and their effects on soil health and yield
Researchers examined interactions between maize roots and soil microbial communities, investigating how root-microbe dynamics influence soil health indicators and crop yield. The study found specific rhizosphere microbial associations that promote nutrient availability and plant productivity.