@article {Ota2012,
	title = {Lotharella reticulosa sp. nov.: A highly reticulated network forming chlorarachniophyte from the mediterranean sea},
	journal = {Protist},
	volume = {163},
	number = {1},
	year = {2012},
	note = {tex.mendeley-tags: RCC375,RCC376},
	pages = {91{\textendash}104},
	abstract = {A new chlorarachniophyte Lotharella reticulosa sp. nov. is described from a culture isolated from the Mediterranean Sea. This strain is maintained as strain RCC375 at the Roscoff Culture Collection, France. This species presents a multiphasic life cycle: vegetative cells of this species were observed to be coccoid, but amoeboid cells with filopodia and globular suspended cells were also present in the life cycle, both of which were not dominant phases. Flagellate cells were also observed but remained very rare in culture. The vegetative cells were 9-16 ??m in diameter and highly vacuolated, containing several green chloroplasts with a projecting pyrenoid, mitochondria, and a nucleus. The chloroplast was surrounded by four membranes possessing a nucleomorph in the periplastidial compartment near the pyrenoid base. According to ultrastructural observations of the pyrenoid and nucleomorph, the present species belongs to the genus Lotharella in the phylum Chlorarachniophyta. This taxonomic placement is consistent with the molecular phylogenetic trees of the 18S rRNA gene and ITS sequences. This species showed a unique colonization pattern. Clusters of cells extended cytoplasmic strands radially. Then, amoeboid cells being born proximately moved distally along the cytoplasmic strand like on a "railway track" Subsequently the amoeboid cell became coccoid near the strand. In this way, daughter cells were dispersed evenly on the substratum. We also observed that the present species regularly formed a structure of filopodial nodes in mid-stage and later-stage cultures, which is a novel phenotype in chlorarachniophytes. The unique colonization pattern and other unique features demonstrate that RCC375 is a new chlorarachniophyte belonging to genus Lotharella, which we describe as Lotharella reticulosa sp. nov. ?? 2011 Elsevier GmbH.},
	keywords = {Chlorarachniophytes, Lotharella, Mediterranean Sea, RCC375, RCC376, Taxonomy.},
	author = {Ota, Shuhei and Vaulot, Daniel}
}
@article {Jacquet2001,
	title = {Cell cycle regulation by light in Prochlorococcus strains},
	journal = {Applied and Environmental Microbiology},
	volume = {67},
	number = {2},
	year = {2001},
	note = {tex.mendeley-tags: RCC,rcc},
	pages = {782{\textendash}790},
	abstract = {<p>The effect of light on the synchronization of cell cycling was investigated in several strains of the oceanic photosynthetic prokaryote Prochlorococcus using flow cytometry. When exposed to a light-dark (L-D) cycle with an irradiance of 25 mu mol of quanta m(-2) s(-1), the low-light-adapted strain SS 120 appeared to be better synchronized than the high-light-adapted strain PCC 9511. Submitting LD-entrained populations to shifts (advances or delays) in the timing of the "light on" signal translated to corresponding shifts in the initiation of the S phase, suggesting that this signal is a key parameter for the synchronization of population cell cycles. Cultures that were shifted from an L-D cycle to continuous irradiance showed persistent diel oscillations of flow-cytometric signals (light scatter and chlorophyll fluorescence) but with significantly reduced amplitudes and a phase shift. Complete darkness arrested most of the cells in the G(1), phase of the cell cycle, indicating that light is required to trigger the initiation of DNA replication and cell division. However, some cells also arrested in the S phase, suggesting that cell cycle controls in Prochlorococcus spp. are not as strict as in marine Synechococcus spp. Shifting Prochlorococcus cells from low to high irradiance translated quasi-instantaneously into an increase of cells in both the S and G(2) phases of the cell cycle and then into faster growth, whereas the inverse shift induced rapid slowing of the population growth rate. These data suggest a close coupling between irradiance levels and cell cycling in Prochloroeoccus spp.</p>
},
	keywords = {cyanobacteria, Equatorial Pacific, Gene Expression, Growth, Mediterranean Sea, North Atlantic, Photosynthetic Prokaryote, picoplankton, Populations, rcc, Synechococcus},
	doi = {10.1128/AEM.67.2.782-790.2001},
	author = {Jacquet, S and Partensky, F and Marie, D and Casotti, R and Vaulot, D}
}
@article {Jacquet2001a,
	title = {Diel patterns of growth and division in marine picoplankton in culture},
	journal = {Journal of Phycology},
	volume = {37},
	number = {3},
	year = {2001},
	note = {tex.mendeley-tags: 2001,rcc,sbr?hyto},
	pages = {357{\textendash}369},
	abstract = {{The effect of a 12:12-h light:dark (LD) cycle on the phasing of several cell parameters was explored in a variety of marine picophytoplanktonic strains. These included the photosynthetic prokaryotes Pro-chlorococcus (strains MED 4, PCC 9511, and SS 120) and Synechococcus (strains ALMO 03, ROS 04, WH 7803, and WH 8103) and five picoeukaryotes (Bathycoccus prasinos Eikrem et Throndsen, Bolidomonas pacifica Guillou et Chretiennot-Dinet, Micromonas pusilla Manton et Parke, Pelagomonas calceolata Andersen et Saunders, and Pycnococcus provasolii Guillard et al.). Flow cytometric analysis was used to determine the relationship between cell light scatter, pigment fluorescence, DNA (when possible), and the LD cycle in these organisms. Asexpected, growth and division were tightly coupled to the LD cycle for all of these strains. For both Prochlorococcus and picoeukaryotes, chi and intracellular carbon increased throughout the light period as estimated by chi fluorescence and light scatter, respectively. In response to cell division, these parameters decreased regularly during the early part of the dark period, a decrease that either continued throughout the dark period or stopped for the second half of the dark period. For Synechococcus, the decrease of chi and scatter occurred earlier (in the middle of the light period), and for some strains these cellular parameters remained constant throughout the dark period. The timing of division was very similar for all picoeukaryotes and occurred just before the subjective dusk, whereas it was more variable between the different Prochlorococcus and Synechococcus strains. The burst of division for Prochlorococcus SS 120 and PCC 9511 was recorded at the subjective dusk, whereas the MED 4 strain divided later at night. Synechococcus ALMO 03, ROS 04, and WH 7803, which have a low phycourobilin to phycoerythrobilin (PUB:PEB) ratio, divided earlier, and their division was restricted to the light period. In contrast, the high PUB:PEB Synechococcus strain WH 8103 divided preferentially at night. There was a weak linear relationship between the FALS(max):FALS(min) ratio and growth rate calculated from cell counts (r = 0.83},
	keywords = {2001, Cell Division, Cyanobacteria Synechococcus, Dividing Cells, Equatorial Pacific, flow cytometry, Mediterranean Sea, Natural Populations, North Pacific Ocean, Photosynthetic Picoplankton, Picophytoplankton Dynamics, rcc, SBR$_\textrmP$hyto, sbr?hyto},
	doi = {10.1046/j.1529-8817.2001.037003357.x},
	author = {Jacquet, S and Partensky, F and Lennon, J F and Vaulot, D}
}
@article {Scanlan1996,
	title = {High degree of genetic variation in Prochlorococcus (Prochlorophyta) revealed by RFLP analysis},
	journal = {European Journal of Phycology},
	volume = {31},
	number = {1},
	year = {1996},
	note = {tex.mendeley-tags: RCC,rcc},
	pages = {1{\textendash}9},
	keywords = {DIVINYL CHLOROPHYLL-A, FAMILY, Marine Synechococcus, Mediterranean Sea, Multiple Evolutionary Origins, north-atlantic, NUCLEOTIDE-SEQUENCE, picoplankton, Prokaryote, rcc, RCC SBR$_\textrmP$hyto, UNICELLULAR CYANOBACTERIUM},
	doi = {10.1080/09670269600651131},
	author = {Scanlan, D J and Hess, W R and Partensky, F and Newman, J and Vaulot, D}
}
