AI Article Synopsis
- The study investigates how plant chemical defenses against herbivores affect microbes in the soil and nutrient release, focusing on Tansy plants with different antiherbivore chemotypes.
- A factorial experiment assessed the impact of soil type and litter from various chemotypes on the composition of soil microbial communities, revealing that soil type plays a more significant role than litter type.
- While some microbial taxa were associated with specific chemotypes, the existing soil microbial community had a greater influence, suggesting that fresh litter from different chemotypes mainly acts as a secondary filter for the microbial community.
Article Abstract
An important challenge in the study of ecosystem function is resolving how plant antiherbivore chemical defence expression may influence plant-associated microbes, and nutrient release. We report on a factorial experiment that explores a mechanism underlying this interplay using individuals of the perennial plant Tansy that vary genotypically in the chemical content of their antiherbivore defenses (chemotypes). We assessed to what extent soil and its associated microbial community versus chemotype-specific litter determined the composition of the soil microbial community. Microbial diversity profiles revealed sporadic effects of chemotype litter and soil combinations. Soil source and litter type both explained the microbial communities decomposing the litter with soil source having a more important effect. Some microbial taxa are related to particular chemotypes, and thus intra-specific chemical variation of a single plant chemotype can shape the litter microbial community. But we found that ultimately the effect of fresh litter inputs from a chemotype appeared to act secondary as a filter on the composition of the microbial community, with the primary factor being the existing microbial community in the soil.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10102019 | PMC |
| http://dx.doi.org/10.1038/s41598-023-32935-4 | DOI Listing |
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