ArticleWorld journal of microbiology & biotechnology2025
Diversity and distribution of arbuscular mycorrhizal fungi in phosphorus-deficient acidic soils of Northeast India: implications for sustainable agriculture.
Article in World journal of microbiology & biotechnology, 2025. 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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Abstract
Soil acidity significantly impacts plant growth and yield, affecting approximately 90% of India's land, with 54% of acidic soils concentrated in the North-Eastern Region of India. Aluminium (Al) toxicity and phosphorus (P) deficiency coexist under acidic conditions, limiting agricultural productivity. Arbuscular Mycorrhizal Fungi (AMF) form symbiotic associations with plants, enhancing phosphorus uptake and mitigating Al toxicity. This study explores total and root-colonizing AMF diversity in acidic soils from undisturbed and cultivated sites in Mizoram (upland) and Tripura (lowland) using next-generation sequencing of amplicons from nested PCR with AMF-specific primers. Distinct variations in AMF communities were observed between undisturbed and cultivated sites in both regions. We identified 26 amplicon sequence variants (ASVs) in soil and six in roots, with Glomeraceae dominating. Cultivated sites in Mizoram showed the highest alpha diversity (Shannon: 2.17, Simpson: 0.84), with unique ASVs (e.g., Funneliformis, Diversispsora). Non-metric multidimensional scaling (NMDS) using Bray-Curtis dissimilarity showed greater AMF community similarity between undisturbed sites in Mizoram and Tripura. Soil parameters such as pH, EC, Al, and Cu significantly influenced AMF community composition. These findings provide crucial ecological insights into AMF communities in acidic soils, guiding the future development of targeted, AMF-based biofertilizers for sustainable crop production.
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