eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2019-03-30 16 1 33 39 10.13005/bbra/2718 33471 article Noorjahan A. 1 B. Aiyamperumal 1 P. Anantharaman 1 CAS in Marine Biology, Faculty of Marine sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India. Phosphate-solubilizing fungi (PSF) generally enhance the availablility of phosphorus (P) released from soil, which contributes to plants' P requirement, especially in P-limiting regions. In this study we isolated endophytic fungi  from seaweeds and screened for phosphate solubilizng in both solid and liquid culture and estimated the solubilizing index and enzyme activity. Six fungus of Penicillium oxalicum, P.citrinums and Aspergillus sp. shows maximum phosphate solubilizing activity. Hence Seaweed endophytic fungus isolated from chlorophyceae express as an alternate source to replace chemical fertilizer. https://www.biotech-asia.org/vol16no1/isolation-and-charecterisation-of-seaweed-endophytic-fungi-as-an-efficient-phosphate-solubiizers/ Chlorophyceae; Penicillium Oxalicum; Aspergillus sp.