Antagonistic interactions of sponge-associated Actinobacteria against heterotrophic bacteria from sponge and ambient water
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Date
2017Author
Subina, N.S.
Sonam, C.S.
Nair, S.
Gonsalves, M.J.B.D.
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In the present study, 11 sponge-associated Actinobac-teria showed 316 inhibitory interactions against 75 heterotrophic bacteria as each Actinobacteria inhibit-ed the growth of >1 bacterial isolates from the sponge and ambient water. The antagonistic activity depend-ed on the source of isolation and the taxonomic group of heterotrophic bacteria. The order of inhibition of bacteria by Actinobacteria was ambient water > cortex > mesohyl tissues of sponge. The absence of certain genera in the sponge might be because of the inhibition by sponge-associated Actino-bacteria. Hence, the antagonistic property of Actino-bacteria in the sponges may influence the selection of resident sponge-associated bacteria.
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