Název:
The origin and localization of selected metabolic pathways in marine diatoms
Překlad názvu:
The origin and localization of selected metabolic pathways in marine diatoms
Autoři:
JIROUTOVÁ, Kateřina Typ dokumentu: Disertační práce
Rok:
2009
Jazyk:
cze
Abstrakt: Sequenced diatoms Thalassiosira pseudonana and Phaeodactylum tricornutum belong to the chromist algae harboring secondary plastids, which display distinct evolutionary history when compared to photosynthetic organelles from rhodophytes, green algae and plants. Via secondary endosymbiosis, heterotrophic eukaryotic ancestor of diatoms engulfed red alga, and in addition to the new organelle, it obtained fitness increasing peculiarities in the chimerical cell metabolism and lifestyle. We examined phylogeny and in silico localization of the nuclear-encoded but plastid located enzymes of tryptophan biosynthesis. We suggest that the diatom tryptophan pathway represents an extreme in the trend of plastid (cyanobacterial) enzymes to be replaced by eukaryotic isoforms. In addition, the gene napped during the endosymbiotic gene transfer from the diatom plastid genome to the diatom nucleus (psb28) was described.
Klíčová slova:
diatom-chromalveolate-endosymbiotic gene transfer-tryptophan biosynthesis-plastid-secondary endosymbiosis; diatom-chromalveolate-endosymbiotic gene transfer-tryptophan biosynthesis-plastid-secondary endosymbiosis Citace: JIROUTOVÁ, Kateřina. The origin and localization of selected metabolic pathways in marine diatoms. České Budějovice, 2009. disertační práce (Ph.D.). JIHOČESKÁ UNIVERZITA V ČESKÝCH BUDĚJOVICÍCH. Přírodovědecká fakulta
Instituce: Jihočeská univerzita v Českých Budějovicích
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Plný text je dostupný v digitálním repozitáři JČU. Původní záznam: http://www.jcu.cz/vskp/6938