@article {Rousseau2013, title = {Characterization of {\textexclamdown}i{\textquestiondown}Phaeocystis globosa{\textexclamdown}/i{\textquestiondown} (haptophyceae), the blooming species in the southern north sea}, journal = {Journal of Sea Research}, volume = {76}, year = {2013}, note = {tex.mendeley-tags: 2013,rcc,sbr?hyto$_\textrmd$ipo}, pages = {105{\textendash}113}, keywords = {2013, ASSEMBLE, rcc, SBR$_\textrmP$hyto$_\textrmD$PO, sbr?hyto$_\textrmd$ipo, Souchotheque}, doi = {10.1016/j.seares.2012.07.011}, author = {Rousseau, V and Lantoine, F and Rodriguez, F and Le Gall, F and Chr{\'e}tiennot-Dinet, M.-J. and Lancelot, C} } @article {Guillou2004, title = {Diversity of picoplanktonic prasinophytes assessed by direct nuclear SSU rDNA sequencing of environmental samples and novel isolates retrieved from oceanic and coastal marine ecosystems}, journal = {Protist}, volume = {155}, year = {2004}, note = {tex.mendeley-tags: 2004,rcc,sbr?hyto}, pages = {193{\textendash}214}, keywords = {2004, PICODIV, rcc, SBR$_\textrmP$hyto$_\textrmD$PO, sbr?hyto, SOMLIT}, doi = {10.1078/143446104774199592}, author = {Guillou, Laure and Eikrem, W and Chr{\'e}tiennot-Dinet, M.-J. and Le Gall, F and Massana, R and Romari, K and Pedr{\'o}s-Ali{\'o}, C and Vaulot, D} } @article {Guillou2001, title = {Grazing impact of two small heterotrophic flagellates on Prochlorococcus and Synechococcus}, journal = {Aquatic Microbial Ecology}, volume = {26}, number = {2}, year = {2001}, note = {tex.mendeley-tags: 2001,rcc,sbr?hyto}, pages = {201{\textendash}207}, abstract = {In open oceanic waters, phytoplankton biomass is dominated by organisms below 2 to 3 mum in size (pico- and small nanophytoplankton). The cell concentration of these populations is very stable in time and space as a consequence of nutrient limitation and strong grazing pressure, Although the identity of the organisms that directly graze on picoplankton is largely unknown, they are thought to be very small, i.e. {\textexclamdown}3 to 5 {\textexclamdown}mu{\textquestiondown}m, Here, we analyze the grazing impact of 2 small flagellates, Symbiomonas scintillans and Picophagus flagellatus, upon 2 oceanic cyanobacteria, Prochlorococcus and Synechococcus. S. scintillans does not feed on the 2 cyanobacteria. In contrast, P. flagellatus appears as an active predator capable of drastically reducing prey concentrations. The flagellate displays a substantial division rate of the order of 2 doublings d(-1) when fed on Prochlorococcus cells, but no significant growth is recorded when Synechococcus is used as prey. As the majority ({\textquestiondown} 80\%) of P. flagellatus cells can pass throughout a 2 mum filter, the impact of such tiny predators should be taken into consideration during field experiments that rely on size fractionation to separate grazers from prey.}, keywords = {2001, Algal Class, Equatorial Pacific, Growth Rates, Laboratory Cultures, Marine, Nanoplankton, PICODIV, picoplankton, Prey, rcc, SBR$_\textrmP$hyto, sbr?hyto, Size, Sp Nov}, doi = {10.3354/ame026201}, author = {Guillou, L and Jacquet, S and Chr{\'e}tiennot-Dinet, M.-J. and Vaulot, D} } @article {Guillou1999, title = {Bolidomonas: a new genus with two species belonging to a new algal class, the Bolidophyceae (Heterokonta)}, journal = {Journal of Phycology}, volume = {35}, year = {1999}, note = {tex.mendeley-tags: 1999,rcc,sbr?hyto}, pages = {368{\textendash}381}, abstract = {A new algal class, the Bolidophyceae (Heterokonta), is described from one genus, Bolidomonas, gen, nov., and two species, Bolidomonas pacifica, sp, nov and Bolidomonas mediterranea, sp, nov., isolated from the equatorial Pacific Ocean and the Mediterranean Sea, respectively. Both species are approximately 1.2 mu m in diameter and have two unequal flagella; the longer flagellum bears tubular hairs, whereas the shorter is smooth. The flagellar basal apparatus is restricted to two basal bodies, and there is no transitional helix. Cells are naked, devoid of walls or siliceous structures. The internal cellular organization is simple with a single plastid containing a ring genophore and a girdle lamella, one mitochondrion with tubular cristae, and one Golgi apparatus close to the basal bodies. The Mediterranean and the Pacific species differ in the insertion angle between their flagella and their pattern of swimming, these differences possibly being linked to each other. Analyses of the SSU rDNA gene place the two strains as a sister group to the diatoms, Moreover, pigment analyses confirm this position, as fucoxanthin is found as the major carotenoid in both lineages. These data strongly suggest that the ancestral heterokont that gave rise to the diatom lineage was probably a biflagellated unicell.}, keywords = {10$_\textrmb$est, 1999, Bolidophyceae, CELL-CYCLE, CHRYSOPHYCEAE, diatoms, DIVINYL-CHLOROPHYLL, FINE-STRUCTURE, FLAGELLAR APPARATUS, Heterokonta, Marine, marine picoeukaryotes, oligotrophic ocean, rcc, RNA, SBR$_\textrmP$hyto, sbr?hyto, SEQUENCE, sp-nov, stramenopiles, ultrastructure}, doi = {10.1046/j.1529-8817.1999.3520368.x}, author = {Guillou, L and Chr{\'e}tiennot-Dinet, M.-J. and Medlin, L K and Claustre, H and Loiseaux-de Go{\"e}r, S and Vaulot, D} } @article {Guillou1999b, title = {Symbiomonas scintillans gen. et sp nov and Picophagus flagellatus gen. et sp nov (Heterokonta): Two new heterotrophic flagellates of picoplanktonic size}, journal = {Protist}, volume = {150}, number = {4}, year = {1999}, note = {ISBN: 1434-4610 Publisher: Urban \& Fischer Verlag tex.address: Branch Office Jena, P O Box No.100 537, D-07705 Jena, Germany tex.mendeley-tags: 1999,rcc,sbr?hyto}, pages = {383{\textendash}398}, abstract = {Two new oceanic free-living heterotrophic Heterokonta species with picoplanktonic size ({\textexclamdown} 2 mu m) are described, Symbiomonas scintillans Guillou et Chretiennot-Dinet gen. Ef sp. Nov, was isolated from samples collected both in the equatorial Pacific Ocean and the Mediterranean Sea. This new species possesses ultrastructural features of the bicosoecids, such as the absence of a helix in the flagellar transitional region (found in Cafeteria roenbergensis and in a few bicosoecids), and a flagellar root system very similar to that of C. Roenbergensis, Acronema sippewissettensis, and Bicosoeca maris. This new species is characterized by a single flagellum with mastigonemes, the presence of endosymbiotic bacteria located close to the nucleus, the absence of a lorica and a R3 root composed of a 6+3+x microtubular structure. Phylogenetical analyses of nuclear-encoded SSU rDNA gene sequences indicate that this species is close to the bicosoecids C. Roenbergensis and Siluania monomastiga. Picophagus flagellatus Guillou et Chretiennot-Dinet gen. Et sp. Nov. Was collected in the equatorial Pacific Ocean, Cells are naked and possess two flagella, This species is characterized by the lack of a transitional helix and lateral filaments on the flagellar tubular hairs, the absence of siliceous scales, two unequal flagella, R1 + R3 roots, and the absence of a rhizoplast. SSU rDNA analyses place this strain at the base of the Chrysophyceae/Synurophyceae lineages.}, keywords = {1999, APPARATUS, DEVELOPAYELLA-ELEGANS, EMPHASIS, MOLECULAR PHYLOGENY, picophytoplankton, PLASTIDS, rcc, RDNA, SBR$_\textrmP$hyto, sbr?hyto, SEQUENCES}, doi = {10.1016/S1434-4610(99)70040-4}, author = {Guillou, L and Chr{\'e}tiennot-Dinet, M.-J. and Boulben, S and Moon-van der Staay, S Y and Vaulot, D} } @article {Courties1998, title = {Phylogenetic analysis and genome size of Ostreococcus tauri (Chlorophyta, Prasinophyceae)}, journal = {Journal of Phycology}, volume = {34}, number = {5}, year = {1998}, note = {tex.mendeley-tags: RCC745}, pages = {844{\textendash}849}, abstract = {Ostreococcus tauri Courties et Chretiennot-Dinet is the smallest described autotrophic eukaryote dominating the phytoplanktonic assemblage of the marine Mediterranean Thau lagoon (France). Its taxonomic position was partly elucidated from ultrastructure and high-pressure liquid chromatography (HLPC) pigment analysis. The sequence analysis of the 18S rDNA gene of O. Tauri measured here is available in EMBL Nucleotide Sequence Database (accession number: Y15814) and allowed to clarify its phylogenetic position. O. Tauri belongs to the Prasinophyceae and appears very close to Mantoniella, a typical scaly Prasinophyceae, morphologically very different from the naked and coccoid Ostreococcus. An electrophoretic analysis of O. Tauri shows that the nucleus contains 10.20 mbp. This small genome fragmented into 14 chromosomes ranging in size from 300 to 1500 kbp, confirms the minimalist characteristics of Ostreococcus tauri.}, keywords = {rcc, RCC745, SBR$_\textrmP$hyto}, doi = {10.1046/j.1529-8817.1998.340844.x}, author = {Courties, C and Perasso, R and Chr{\'e}tiennot-Dinet, M.-J. and Gouy, M and Guillou, L and Troussellier, M} } @article {Chretiennot-Dinet1995, title = {A new marine picoeucaryote: Ostreococcus tauri gen. et sp. nov. (Chlorophyta, Prasinophyceae)}, journal = {Phycologia}, volume = {34}, number = {4}, year = {1995}, note = {tex.mendeley-tags: RCC745}, pages = {285{\textendash}292}, keywords = {FRESH-WATER ECOSYSTEMS, morphology, picoplankton, pigments, PROCHLOROCOCCUS-MARINUS, Prokaryote, rcc, RCC745, Size}, doi = {10.2216/i0031-8884-34-4-285.1}, author = {Chr{\'e}tiennot-Dinet, M.-J. and Courties, C and Vaquer, A and Neveux, J and Claustre, H and Lautier, J and Machado, M C} } @article {Vaulot1994, title = {Phaeocystis spp.: morphology, ploidy, pigment composition and genome size of cultured strains}, journal = {Journal of Phycology}, volume = {30}, year = {1994}, note = {tex.mendeley-tags: RCC,rcc}, pages = {1022{\textendash}1035}, keywords = {rcc, RCC SBR$_\textrmP$hyto}, doi = {10.1111/j.0022-3646.1994.01022.x}, author = {Vaulot, D and Birrien, J.-L. and Marie, D and Casotti, R and Veldhuis, M J W and Kraay, G W and Chr{\'e}tiennot-Dinet, M.-J.} }