A-B.04: Habitat Invasibility Associated with Lantana camara Reveals Change in Bacterial and Fungal Community Structure and Function
Gitanjali Yadav
BRIC National Institute of Plant Genome Research
Keywords
Metagenomes, Habitat Invasibility, Invasive Plants, Functional Potential and LLMs
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Soil microorganisms are integral to plant invasion processes, functioning both as agents that facilitate invasion and as communities that respond to vegetation change. Despite growing evidence of microbial involvement, the effects of habitat invasibility on soil microbial communities remain poorly understood. In this study, we examined the effects of Lantana camara invasion on the diversity, composition, and functional potential of soil bacterial and fungal communities in the Corbett Tiger Reserve, India, using the Non-invaded habitat as a reference. Compared with Non-invaded habitat, Lantana camara invasion had no significant difference on bacterial alpha-diversity and fungal alpha-diversity. In contrast, the beta-diversity of both bacterial and fungal communities differed markedly between Invaded, Partially-invaded and Non-invaded habitats. Proteobacteria and Ascomycota are the most prevalent phyla in each of the three habitats in bacterial and fungal datasets respectively. Functional prediction analyses further indicated that Lantana camara invasion enhanced the representation of bacterial functions related to carbon and nitrogen cycling, including aerobic chemoheterotrophy, chitinolysis and nitrate reduction. Litter saprotrophs and ectomycorrhizal fungal guilds are significantly high in Invaded Habitat. Collectively, these findings demonstrate that Lantana invasion profoundly reshapes soil microbial communities and their functional potential.
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