Chromerids and Their Plastids

0482897 - BC 2018 RIV US eng J - Journal Article
Füssy, Zoltán - Oborník, Miroslav
Chromerids and Their Plastids.
Advances in Botanical Research. Advances in Botanical Research. Roč. 84, č. 2017 (2017), s. 187-218. ISSN 0065-2296. E-ISSN 2162-5948
R&D Projects: GA ČR(CZ) GA16-24027S
Institutional support: RVO:60077344
Keywords : complex diatom plastids * red algal origin * apicomplexan parasites * plasmodium-falciparum * life-cycle * gymnodinium-chlorophorum * phototrophic relatives * cryptosporidium-parvum * biosynthesis pathway * chloroplast genome
OECD category: Plant sciences, botany
Impact factor: 1.388, year: 2017
Method of publishing: Limited access

Chrompodellids, a monophyletic group consisting of predatory colpodellids and the chromerid algae Chromera velia and Vitrella brassicaformis, are the closest known relatives to apicomplexan parasites. The photosynthetic plastids of Chromera and Vitrella are evolutionarily linked to apicoplasts, nonphotosynthetic plastids of apicomplexans, allowing the reconstruction of processes that shaped these organelles into their current form and function. Chromerid and apicomplexan plastids are derived from a rhodophyte endosymbiont and thus share common origin with the plastids of the red lineage. Plastids in apicomplexans and chrompodellids play major roles in cellular biochemistry and dependence on plastid pathways underlies the organelle's essentiality in most nonphotosynthetic lineages. The architecture and gene content of plastid genomes differ significantly in the two described chromerids, as do their nuclear and mitochondrial genomes. Life cycle complexity also varies in chromerids, possibly reflecting adaptive mechanisms in their respective ecological niches. Finally, accumulating evidence suggests a tertiary endosymbiosis with an ochrophyte symbiont was the origin of current plastids in chromerid algae and apicomplexan parasites.
Permanent Link: http://hdl.handle.net/11104/0278297