Seasonal variation in the antivibrio activity of two organic extracts from two red seaweed: Palmaria palmata and the introduced Grateloupia turuturu against the abalone pathogen Vibrio harveyi
|Author(s)||Garcia-Bueno Nuria1, 2, Dumay Justine1, Guerin Thomas1, 3, Turpin Vincent1, Paillard Christine3, Stiger-Pouvreau Valerie3, Pouchus Yves-Francois1, Aitor Marin-Atucha Arnaldo2, Decottignies Priscilla1, Fleurence Joel1|
|Affiliation(s)||1 : Univ Nantes, Inst Univ Mer & Littoral, EA Mer Mol Sante 2160, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France.
2 : Univ Murcia, Fac Biol, Dept Ecol & Hidrol, E-30100 Murcia, Spain.
3 : Inst Univ Europeen Mer, Lab Sci Environm Marin LEMAR, Pl Copernic Technopole Brest Iroise, F-29280 Plouzane, France.
|Source||Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2015-04 , Vol. 28 , N. 2-4 , P. 81-87|
|WOS© Times Cited||1|
|Keyword(s)||Antibacterial activity, abalone disease, Haliotis tuberculata, red seaweed, Vibrio harveyi|
The wide polarity range and highly polar compounds of two selected red seaweed, Grateloupia turuturu and Palmaria palmata were extracted using two different types of solvent, dichloromethane/methanol and methanol/water. Monthly in vitro antibacterial activities were studied using the microplate method against the marine bacteria Vibrio harveyi strain ORM4, known to infect abalone. Inhibition, slowdown and delay of Vibrio harveyi growth were investigated. Polar compounds of seaweed showed an activity against the abalone pathogen. The best activity was recorded from P. palmata collected in spring, with an inhibition of 7.9% of the bacterial growth. Preliminary 1H NMR profiles identified the differences between the extracts.