Paulinella chromatophora – rethinking the transition from endosymbiont to organelle
نویسندگان
چکیده
منابع مشابه
Another acquisition of a primary photosynthetic organelle is underway in Paulinella chromatophora
The birth of plastids brought photosynthesis to eukaryotes and had a huge impact on their evolution. Despite its importance, details of the plastid acquisition process through primary endosymbiosis are not well understood. Recently, a cercozoan testate amoeba, Paulinella chromatophora, has received considerable attention because it may be able to provide insights into the transition from a cyan...
متن کاملRobert Lauterborn (1869-1952) and his Paulinella chromatophora.
In 1895, in his second, short contribution about protozoa (Protozoenstudien II.), Robert Lauterborn, then at the Zoology Department of the University of Heidelberg, described a novel organism (nov. gen. et nov. spec.) which he named Paulinella chromatophora. He must have been very exited about his discovery which he made on Christmas Eve 1894, since he clearly recognized the importance of his o...
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It is commonly assumed that transformations of endosymbionts into organelles are exceptionally rare evolutionary events because of hypothetical difficulties in the origin of an import apparatus for nuclear-encoded, organelle-targeted proteins along with their targeting signals. A challenge to this view comes from recent studies of protein import into the cyanobacterial endosymbionts/organelles ...
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first individual to scan was the first to cross the small road in 100% of cases, compared to 70% for the large road. On the large road the second-ranking male sometimes continued scanning while the elderly third male and alpha female took up the lead on the large-road progressions. The alpha male increased his rearward presence on the large road, whereas the alpha female showed a dramatic reduc...
متن کاملOrganelle Evolution: What's in a Name?
Plastids are organelles derived from cyanobacterial endosymbionts and the evolutionary process that gave rise to them is well understood. Or is it? The complete genome sequence of a recently evolved photosynthetic body in Paulinella chromatophora is cause for reflection on the distinction between 'endosymbiont' and 'organelle', and how the boundaries between these terms can blur.
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ژورنال
عنوان ژورنال: Acta Societatis Botanicorum Poloniae
سال: 2014
ISSN: 2083-9480
DOI: 10.5586/asbp.2014.049