The Holobiome Framework: Integrating Environmental Microbiomes, Probiotic Systems, and Sustainable Ecosystem Management

The holobiome framework represents an integrative biological paradigm that conceptualizes soil, plant, marine, aquatic, animal, and human microbiomes as interconnected components of a unified ecological network. Expanding beyond the holobiont concept, the holobiome emphasizes cross-domain microbial interactions that regulate biogeochemical cycling, carbon sequestration, metabolic homeostasis, immune function, and ecosystem resilience. Environmental microbiomes play a pivotal role in climate regulation through soil carbon stabilization, microbial necromass formation, and marine phytoplankton–driven carbon flux. However, anthropogenic pressures including intensive agriculture, climate change, pollution, and antimicrobial overuse are destabilizing microbial networks across terrestrial and aquatic systems. Parallel disruptions in the human gut microbiome are associated with metabolic, inflammatory, and systemic disorders mediated through gut–organ axes and microbial metabolite signaling pathways. This review synthesizes current advances in environmental microbiology, probiotic science, regenerative agriculture, and sustainable aquaculture within a systems-level perspective. It highlights the functional importance of soil probiotics, plant growth–promoting rhizobacteria, and targeted Probiotics interventions in restoring microbial balance and enhancing resilience under climate stress. Furthermore, emerging multiomics technologies and artificial intelligence–driven predictive modeling are accelerating the transition from descriptive microbiome studies to precision holobiome engineering strategies. By integrating environmental sustainability, One Health principles, and computational systems biology, the holobiome framework offers a translational roadmap for ecosystem restoration, climate mitigation, and human health optimization. Future interdisciplinary research integrating longitudinal ecological data, clinical validation, and policy implementation will be critical for maintaining microbial stability across interconnected biological domains.