ArticlePloS one2023
The effects of different biochars on Caenorhabditis elegans and the underlying transcriptomic mechanisms.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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8 authors at 5 institutions in 1 country.
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Abstract
Different biochars have diverse properties, with ambiguous effects on soil nematodes. This study investigated how aspen sawdust (ABC), bamboo powder (BBC), maize straw (MBC) and peanut-shell biochars (PBC) affected Caenorhabditis elegans via culture assays and RNA-seq analysis. The results showed that biochars derived from different agricultural materials varied significantly in physicochemical properties, and PBC produced more volatile organic compounds (VOCs) to attract C. elegans than ABC, BBC and MBC. Moreover, worms in ABC experienced the worst outcomes, while worms in PBC experienced milder impacts. Nematode body length decreased to 724.6 μm, 784.0 μm and 799.7 μm on average in ABC, BBC and MBC, respectively, compared to the control (1052 μm) and PBC treatments (960 μm). The brood size in ABC, MBC, BBC and PBC decreased 41.1%, 39.4%, 39.2% and 19.1% compared to the control, respectively. Furthermore, the molecular mechanisms of biochar-induced developmental effects on C. elegans were explored. Although several differentially expressed genes (DEGs) were different among the four biochars, worm phenotypic changes were mainly related to col genes (col-129; col-140; col-40; col-184), bli-6, sqt-3, perm-2/4, cdk-8, daf-16 and sod-1/2/5, which are associated with cuticle collagen synthesis, eggshell formation in postembryonic growth and rhythmic processes. Our study suggests that different properties of biochars could be crucial to soil nematodes, as well as the worms' biochemical changes are important for the health in agriculture soil.
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