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Fungal species that establish an endophytic role inside the tissues of medicinal plants are known to produce a wide range of biologically active metabolites and enzymes. In the present study, the most dominant and representative endophytic fungal species of five ethno-medicinal plants prevalent in the pristine sacred forests of Meghalaya, were screened for their ability to produce amylase, cellulase, protease, lipase, and xylanase. Each of endophytic fungal isolates showed a wide range of enzyme activity. Mycelial biomass generation and root colonization, in addition to the enzyme activity of the endophytic fungal isolates, provided insights into their probable origin and ecological roles within the plant host.

The phylogenetic relationships of the most dominant and morphologically cryptic endophytic fungal isolates from each of five selected medicinal plants, namely Potentilla fulgens, Osbeckia stellata, Osbeckia chinensis, Camellia caduca, and Schima khasiana of the biodiversity rich state of Meghalaya, were assessed with random amplification of polymorphic DNA and PCR-restriction fragment length polymorphism profiles. Sequencing of the internal transcribed spacer 1, small subunit rRNA and partial β-tubulin gene fragments was also conducted to determine the phylogenetic relationships of these isolates with fungal sequences available in Genbank, NCBI. The identity of the fungal isolates is suggested based on the molecular phylogenetic data.

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