@article {Andersen2015, title = {Phaeocystis rex sp. nov. (Phaeocystales, Prymnesiophyceae): a new solitary species that produces a multilayered scale cell covering}, journal = {European Journal of Phycology}, volume = {50}, number = {2}, year = {2015}, note = {Publisher: Taylor \& Francis tex.mendeley-tags: 2015,RCC 4025,rcc}, pages = {207{\textendash}222}, abstract = {A morphologically distinct marine species, Phaeocystis rex sp. nov., was described on the basis of light microscopy, transmission electron microscopy and DNA sequence comparisons. Non-motile cells were solitary (non-colonial), 6{\textendash}10 {\textmu}m in diameter and 8{\textendash}15 {\textmu}m long, and possessed chloroplasts with distinctive finger-like lobes. TEM observations demonstrated the presence of two short flagella and a very short haptonema that arose from an invagination of the protoplast. Non-motile cells were surrounded by one to several dense layers composed of scales, presumably unmineralized, and an amorphous material. Phylogenetic analyses based upon combined partial nucleotide sequences for five nuclear-or plastid-encoded genes (18S rRNA, 28S rRNA, 16S rRNA, psbA and rbcL) from cultured strains and from uncharacterized acantharian symbionts confirmed that P. rex was a distinct species. These analyses implied that P. rex occupies an intermediate evolutionary position between solitary and colonial Phaeocystis species.}, keywords = {2015, algae, organic scales, Phaeocystales, Phaeocystis rex, Prymnesiophyceae, rcc, RCC4025, RCC?o?dd, SBR$_\textrmP$hyto$_\textrmE$PPO, systematics, ultrastructure}, issn = {0967-0262}, doi = {10.1080/09670262.2015.1024287}, url = {http://www.tandfonline.com/doi/full/10.1080/09670262.2015.1024287}, author = {Andersen, Robert A. and Bailey, J. Craig and Decelle, Johan and Probert, Ian} }