Abstract
This study investigates the diversity of endophytic fungi associated with mangrove roots along the Sri Vijaya Puram coast, South Andaman. Root samples were collected from five stations between July 2014 and July 2016. A total of 256 fungal isolates were obtained from 637 root segments, with the highest diversity ( H ′ = 2.276) recorded in the stilt roots of Rhizophora apiculata . Fungal identification was performed using morphological characteristics and ITS region‐based molecular methods, with sequences compared to entries in the NCBI GenBank database using BLAST, revealing that most isolates belonged to the phylum Ascomycota. The detailed findings emphasize the ecological significance of mycobiota associated with mangrove roots, suggesting their potential role in nutrient cycling and contribution to ecosystem stability in the coastal waters of South Andaman.