Abstract:
:The antibiotic-producing ability of 57 bacteria isolated from 8 marine sedentary organisms, 6 sponges (Spirastrella sp., Phyllospongia sp., Ircinia sp., Aaptos sp., Azorica sp., Axinella sp.), 1 soft coral (Lobophytum sp.) and 1 alga (Sargassum sp.), was evaluated against 6 phytopathogenic fungi (Helminthosporium oryzae, Rhizoctonium solani, Pyricularia oryzae, Fusarium oxysporum, Aspergillus oryzae and A. fumigatus). Bacteria of the genus Bacillus (20%), Pseudomonas (33%) and Flavobacterium (40%) were predominant among the heterotrophic bacteria isolated from the marine sponges, soft coral and alga, respectively. Bioassay results revealed that 36 (63%) bacterial isolates displayed antifungal activity against at least one fungus, the alga (Sargassum sp.) being the source of highest number (80%) of producer strains. Twelve bacterial isolates inhibited all fungi. The MIC of the organic extracts of 12 bacteria ranged from 0.3 to 22.8 mg/L.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Mohapatra BR,Bapuji M,Sree Adoi
10.1007/BF02818565keywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
51-5issue
1eissn
0015-5632issn
1874-9356journal_volume
47pub_type
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