1998/01/01 by Chandralata Raghukumar, S. Raghukumar · 105 citations
Environmental Science · Biochemistry, Genetics and Molecular Biology · #Microbial Community Ecology and Physiology #Protist diversity and phylogeny #Biology #Bay #Marine fungi #Deep sea #Botany #Oceanography #Fishery #Geology
paper · pdf · doi:10.3354/ame015153
published in Aquatic Microbial Ecology 15, 153-163 (Inter-Research Science Center)
openalex publication_date 1998/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Two species of filamentous fungi, AspergiUus ustus (Bain.) Thom & Church and Graphium sp., were isolated from calcareous animal shells at depths of 860 m in the Arabian Sea and 965 m in the Bay of Bengal. Laboratory experiments showed germination of conidia, growth of hyphae and microconidiation in both the fungi at 100 bar pressure at 10 and 30C suggesting barotolerance The fungi also secreted barotolerant protease under these conditions. Protease synthesised and secreted in cultures grown at 1 bar was also active under 100 bar pressure at 10 and 30C. At 1O0C, the fungi showed better conidial germination, growth and protease secretion when subjected to 100 bar than when grown at 1 atmosphere. The results indicate barotolerance of terrestrial species of fungl and suggest that they might be active under deep-sea conditions.