Multiple allelopathic activity of the crustose coralline algaLithophyllum yessoenseagainst settlement and germination of seaweed spores |
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| Authors: | Mi-Jung Kim Jae-Suk Choi Se-Eun Kang Ji-Young Cho Hyung-Joo Jin Byung-Soo Chun Yong-Ki Hong |
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| Institution: | (1) Department of Biotechnology, Pukyong National University, Namku, Busan, 608-737, Korea;(2) Faculty of Marine Biotechnology, Kangnung National University, Kangnung 210-702, Korea;(3) Department of Food Science and Technology, Pukyong National University, Namku, Busan, 608-737, Korea |
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| Abstract: | A study was made to investigate possible formation by the crustose coralline algaLithophyllum yessoenseof multiple allelopathic-related substances against the settlement and germination of spores of various seaweeds. Seven different solvents (n-hexane, diethyl ether, acetone, ethyl acetate, acetonitrile, methanol, distilled water) and seawater were used to obtain crude extracts and secretory exudates from the coralline alga. The extracts and the algal conditioned seawater were tested for inhibitory activity against the settlement and germination of spores from 17 species representing 15 genera. Spore settlement of 14 species was inhibited over 90% by one or more extracts of the six organic solvents and conditioned seawater. The germination of spores from 13 species was inhibited by one or more extracts of all seven solvents and conditioned seawater. The species where spore settlement was not significantly affected showed strong inhibition of germination, andvice versa. |
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| Keywords: | allelopathy antifouling calcareous algae coralline Lithophyllum yessoense seaweed |
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