We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
[Transcriptome Analysis of Plant Growth-promoting Bacteria Alleviating Microplastic and Heavy Metal Combined Pollution Stress in Sorghum].
AI summary Read the abstract
A transcriptomics study examined how the plant growth-promoting bacterium VY-1 alleviates combined stress from microplastics and heavy metals in sorghum grown in hydroponic conditions. Inoculation with VY-1 improved biomass and reduced heavy metal accumulation in sorghum, with gene expression analysis revealing the underlying protective mechanisms.
Microplastics can become potential transport carriers of other environmental pollutants (such as heavy metals), so the combined pollution of microplastics and heavy metals has attracted increasing attention from researchers. To explore the mechanism of plant growth-promoting bacteria VY-1 alleviating the combined pollution stress of heavy metals and microplastics in sorghum, the effects of inoculation on biomass and accumulation of heavy metals in sorghum were analyzed using a hydroponics experiment, and the effects of inoculation on gene expression in sorghum were analyzed via transcriptomics. The results showed that the combined pollution of polyethylene (PE) and cadmium (Cd) decreased the dry weight of above-ground and underground parts by 17.04% and 10.36%, respectively, compared with that under the single Cd pollution, which showed that the combined toxicity effect of the combined pollution on plant growth was enhanced. The inoculation of plant growth-promoting bacteria VY-1 could alleviate the toxicity of Cd-PE combined pollution and increase the length of aboveground and underground parts by 33.83% and 73.21% and the dry weight by 56.64% and 33.44%, respectively. Transcriptome sequencing showed that 904 genes were up-regulated after inoculation with VY-1. Inoculation with growth-promoting bacteria VY-1 could up-regulate the expression of several genes in the auxin, abscisic acid, flavonoid synthesis, and lignin biosynthesis pathways, which promoted the response ability of sorghum under Cd-PE combined pollution stress and improved its resistance. The above results indicated that plant growth-promoting bacteria could alleviate the stress of heavy metal and microplastic combined pollution by regulating plant gene expression, which provided a reference for plant-microbial joint remediation of heavy metal and microplastic combined pollution.
More Papers Like This
Plant growth-promoting bacteria modulate gene expression and induce antioxidant tolerance to alleviate synergistic toxicity from combined microplastic and Cd pollution in sorghum
AI summary Read the abstract
Scientists found that a beneficial soil bacterium (Bacillus sp. SL-413) can help protect sorghum plants from the combined toxic effects of microplastics and cadmium, a heavy metal. The bacterium boosted plant growth, reduced harmful reactive oxygen species by up to 27%, and reactivated genes that the pollution had shut down. This research points to a nature-based solution for helping food crops survive in microplastic-contaminated soil.
Regulatory Mechanisms of Plant Growth-Promoting Bacteria in Alleviating Microplastic and Heavy Metal Combined Pollution: Insights from Plant Growth and Metagenomic Analysis
AI summary Read the abstract
Researchers used metagenomic sequencing to investigate how plant growth-promoting bacteria (PGPB) mitigate the combined toxicity of microplastics and heavy metals on plant growth. PGPB inoculation restored rhizosphere microbial function and reduced plant stress, revealing microbiome-mediated mechanisms for alleviating mixed pollutant toxicity.
Screening of plant growth-promoting rhizobacteria helps alleviate the joint toxicity of PVC+Cd pollution in sorghum plants
AI summary Read the abstract
Researchers isolated soil bacteria that promote plant growth and showed they can partially offset the combined toxicity of PVC microplastics and cadmium in sorghum, restoring soil nutrient availability and shifting rhizosphere bacterial communities in ways that support nitrogen and phosphorus cycling.
[Plant Growth-promoting Bacteria Alleviate the Toxic Effects of Soil Microplastics and Heavy Metal Complex Pollution in Hybrid pennisetum].
AI summary Read the abstract
Researchers investigated whether plant growth-promoting bacteria (Enterobacter and Bacillus spp.) could alleviate combined polypropylene microplastic and cadmium stress on Hybrid pennisetum in pot experiments, finding that inoculation improved plant growth and soil nutrient availability while shifting rhizosphere bacterial communities toward more beneficial compositions.
Combined microplastic and cadmium pollution reshapes plastisphere–rhizosphere bacterial microbiomes and regulates the growth of sorghum plants for bioenergy
AI summary Read the abstract
Microplastics and toxic heavy metals like cadmium often pollute farmland together, and this study found that this combo stunts the growth of sorghum (a crop used for biofuel) more than either pollutant alone, especially when the plastic type is PVC. The silver lining: certain soil bacteria adapted to this pollution by evolving ways to break down plastic and resist heavy metals, and these bacteria actually helped the plants grow better despite the contamination, hinting at a possible future strategy for cleaning up polluted soil using plants and microbes together.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.