- Tytuł:
- Paulinella chromatophora - rethinking the transition from endosymbiont to organelle
- Autorzy:
- Nowack, E.C.M.
- Powiązania:
- https://bibliotekanauki.pl/articles/57807.pdf
- Data publikacji:
- 2014
- Wydawca:
- Polskie Towarzystwo Botaniczne
- Tematy:
-
Paulinella chromatophora
organellogenesis
plastid
evolution
endosymbiosis
Cyanoprokaryota
photosynthesis
chromatophore
protein targeting
endosymbiont
organelle
Rhizaria - Opis:
- Eukaryotes co-opted photosynthetic carbon fixation from prokaryotes by engulfing a cyanobacterium and stably integrating it as a photosynthetic organelle (plastid) in a process known as primary endosymbiosis. The sheer complexity of interactions between a plastid and the surrounding cell that started to evolve over 1 billion years ago, make it challenging to reconstruct intermediate steps in organelle evolution by studying extant plastids. Recently, the photosynthetic amoeba Paulinella chromatophora was identified as a much sought-after intermediate stage in the evolution of a photosynthetic organelle. This article reviews the current knowledge on this unique organism. In particular it describes how the interplay of reductive genome evolution, gene transfers, and trafficking of host-encoded proteins into the cyanobacterial endosymbiont contributed to transform the symbiont into a nascent photosynthetic organelle. Together with recent results from various other endosymbiotic associations a picture emerges that lets the targeting of host-encoded proteins into bacterial endosymbionts appear as an early step in the establishment of an endosymbiotic relationship that enables the host to gain control over the endosymbiont.
- Źródło:
-
Acta Societatis Botanicorum Poloniae; 2014, 83, 4
0001-6977
2083-9480 - Pojawia się w:
- Acta Societatis Botanicorum Poloniae
- Dostawca treści:
- Biblioteka Nauki
Artykuł