RT Journal Article T1 Photosynthetic plasticity of the genus Asparagopsis (Bonnemaisoniales, Rhodophyta) in response to temperature: implications for invasiveness A1 Zanolla-Balbuena, Maríanela Fernanda A1 Altamirano-Jeschke, María A1 Carmona-Fernández, Raquel A1 De la Rosa, Julio A1 Sherwood, Alison A1 Andreakis, Nikos K1 Fotosíntesis K1 Plantas acuáticas AB Invasive species display remarkable levels ofecophysiological plasticity, which supports colonization,population establishment and fitness across their introduction range. The red seaweed genus Asparagopsiscomprises genetically homogeneous invasive species (A.armata) and cryptic species complexes (A. taxiformissensu lato) consisting of invasive mitochondrial lineagesintroduced worldwide. The photosynthetic plasticity ofAustralian, Mediterranean and Hawaiian Falkenbergiastages (i.e. the tetrasporophytic stage) of A. taxiformislineages 2, 3 and 4 and Mediterranean isolates of A.armata was assessed by challenging their photosyntheticperformance at five different temperatures (12–26 C).Our aim is to portray the photosynthetic profiles inrelation to temperature for each of the aforementionedAsparagopsis OTUs. We additionally test the physiological response of A. taxiformislineage 2 sampled within itsinvasive (Mediterranean Sea) and native range (Australia) to identify physiological features associated withinvasive strains. Based on photosynthesis optima, Asparagopsis isolates were recovered into a tropical (NL2 andL4) and a temperate (AA, Il2 and L3) group thatpresented no differences in most photosynthetic parameters at the experimental temperatures, thus indicating agreater physiological plasticity. On the other hand, low Icvalues together with an apparent lack of sensitivity in thephotosynthetic response to changing temperatures wererevealed for the Mediterranean lineage 2, indicative ofadaptive benefits that likely support its invasive successcompared to the rest of the genus. Our results represent avaluable resource to predict distributional shifts in someof the lineages and to anticipate control programs forlineage 3, potentially invasive PB Springer YR 2014 FD 2014-10-22 LK https://hdl.handle.net/10630/33478 UL https://hdl.handle.net/10630/33478 LA eng NO Zanolla, M., Altamirano, M., Carmona, R. et al. Photosynthetic plasticity of the genus Asparagopsis (Bonnemaisoniales, Rhodophyta) in response to temperature: implications for invasiveness. Biol Invasions 17, 1341–1353 (2015). https://doi.org/10.1007/s10530-014-0797-8 NO This work has been funded by the projectsCGL2008/01549/BOS (MINISTERIO DE CIENCIA E INNO-VACIO´ N, Spain), P09-RNM-5187 (CONSEJERI´A DE INNO-VACIO´ N, CIENCIA Y EMPRESA, JUNTA DE ANDALUCI´A,Spain), 806/5.03.3553 and 806/5.03.3673 (INSTITUTO DEESTUDIOS CEUTI´ES, Spain), and has been developed in theframework of the Research Collaboration Agreement betweenCONSEJERI´A DE MEDIO AMBIENTE DE LA JUNTA DEANDALUCI´A and the UNIVERSITY OF MA´ LAGA. MarianelaZanolla is a PhD student of the project P09-RNM-5187 from theCONSEJERI´A DE INNOVACIO´ N, CIENCIA Y EMPRESA,JUNTA DE ANDALUCI´A, Spain; also supported by the ‘‘PlanPropio’’ from the UNIVERSITY OF MA´ LAGA. NA is supportedby the COMMONWEALTH ENVIRONMENTAL RESEARCHFACILITIES (CERF) Marine Biodiversity Hub. The CERFprogram is an Australian Government initiative supporting worldclass, public good research and is a collaborative partnershipbetween the UNIVERSITY OF TASMANIA, CSIRO Wealth fromOCEANS FLAGSHIP, Geoscience Australia, AUSTRALIANINSTITUTE OF MARINE SCIENCE and MUSEUMVICTORIA. Some of the analyses of Hawaiian specimens weresupported by a U.S. NATIONAL SCIENCE FOUNDATIONGRANT (DEB-0542608) to A.R.S. and G.G. Presting. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026