@article{fdi:010071400, title = {{N}ew insights on the species-specific allelopathic interactions between macrophytes and marine {HAB} dinoflagellates}, author = {{B}en {G}harbia, {H}. and {Y}ahia, {O}. {K}. {D}. and {C}ecchi, {P}hilippe and {M}asseret, {E}stelle and {A}mzil, {Z}. and {H}erve, {F}. and {R}ovillon, {G}. and {N}ouri, {H}. and {M}'{R}abet, {C}. and {C}ouet, {D}ouglas and {T}riki, {H}. {Z}. and {L}aabir, {M}ohamed}, editor = {}, language = {{ENG}}, abstract = {{M}acrophytes are known to release allelochemicals that have the ability to inhibit the proliferation of their competitors. {H}ere, we investigated the effects of the fresh leaves of two magnoliophytes ({Z}ostera noltei and {C}ymodocea nodosa) and thalli of the macroalgae {U}lva rigida on three {HAB}-forming benthic dinoflagellates ({O}streopsis cf. ovata, {P}rorocentrum lima, and {C}oolia monotis). {T}he effects of {C}. nodosa and {U}. rigida were also tested against the neurotoxic planktonic dinoflagellate {A}lexandrium pacificum {L}itaker sp. nov (former {A}lexandrium catenella). {C}o-culture experiments were conducted under controlled laboratory conditions and potential allelopathic effects of the macrophytes on the growth, photosynthesis and toxin production of the targeted dinoflagellates were evaluated. {R}esults showed that {U}. rigida had the strongest algicidal effect and that the planktonic {A}. pacificum was the most vulnerable species. {B}enthic dinoflagellates seemed more tolerant to potential allelochemicals produced by macrophytes. {D}epending on the dinoflagellate/macrophyte pairs and the weight of leaves/thalli tested, the studied physiological processes were moderately to heavily altered. {O}ur results suggest that the allelopathic activity of the macrophytes could influence the development of {HAB} species.}, keywords = {{TUNISIE} ; {MEDITERRANEE} ; {BIZERTE}}, booktitle = {}, journal = {{PLOS} {O}ne}, volume = {12}, numero = {11}, pages = {e0187963 [28 ]}, ISSN = {1932-6203}, year = {2017}, DOI = {10.1371/journal.pone.0187963}, URL = {https://www.documentation.ird.fr/hor/fdi:010071400}, }