Chloroplast-mitochondria cross-talk in diatoms
| Autor: | Chris Bowler, Atsuko Tanaka, John F. Allen, Judit Prihoda, Leila Tirichine, Wilson B. M. de Paula |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
0106 biological sciences
Symbiogenesis Chloroplasts Physiology Plant Science Red algae Photosynthesis 01 natural sciences Cell wall 03 medical and health sciences Botany 14. Life underwater 030304 developmental biology Diatoms 0303 health sciences biology Endosymbiosis Ecology Aquatic ecosystem fungi biology.organism_classification Mitochondria Chloroplast Green algae 010606 plant biology & botany Signal Transduction |
| Zdroj: | Journal of Experimental Botany |
| ISSN: | 0022-0957 |
| DOI: | 10.1093/jxb/err441 |
| Popis: | Diatoms are unicellular, mainly photosynthetic, eukaryotes living within elaborate silicified cell walls and believed to be responsible for around 40% of global primary productivity in the oceans. Their abundance in aquatic ecosystems is such that they have on different occasions been described as the insects, the weeds, or the cancer cells of the ocean. In contrast to higher plants and green algae which derive from a primary endosymbiosis, diatoms are now believed to originate from a serial secondary endosymbiosis involving both green and red algae and a heterotrophic exosymbiont host. As a consequence of their dynamic evolutionary history, they appear to have red algal-derived chloroplasts empowered largely by green algal proteins, working alongside mitochondria derived from the non-photosynthetic exosymbiont. This review will discuss the evidence for such an unusual assemblage of organelles in diatoms, and will present the evidence implying that it has enabled them with unorthodox metabolisms that may have contributed to their profound ecological success. |
| Databáze: | OpenAIRE |
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